Hey everyone,
I recently joined up on the ZPI forum asking some questions, and recieved some pretty good information about what to expect with their Xb. Atleast, the first stages anyway. I hope ZPI doesn't mind me sharing, i know they have a lot to do so i hope they look at this as helping them out instead of putting more pressure on the build.

Anyway, heres the deal thus far:
They xb arrived late due to some unknown errors. The paperwork had been done, and completed but a hold up took place so it was late getting to them. (don't know details) They plan to take out the motor sometime next week, hopefully, to check out everything and see how the 1nz works. They will then start to plan, design and build parts for us.

Some parts out/will be out first:
1. ZPI Pulley - The pulley weighs 1.1lbs and is available now. $135 dollars i believe it is more expensive than the Perrin, however there are no fitment issues like we have all experienced, heard about with Perrin. Also, the ZPI pulley is lighter than the Perrin to give best results in acceleration.
2. ZPI Pistons - These pistons are not out just yet, but will be soon. They have two, one for N/A and one for F/i. The price will be roughly $595.00 for either/or. The N/A compression will be 11:1 where as the F/i will be 8:5:1.
3. ZPI Head Package - Kenny didn't give me any specific details on this part, but i can imagine its going to be worth the price. He told me that this product will hopefully be ready in the up coming weeks. Price is still unknown obviously.

I started this forum to keep everyone updated with their progress, because i know there are others like me just waiting for products to come out from ZPI, and other great companies. Information can be provided on their website, i suggest those who are interested in the company to sign up on there forums, its free obviously and i have found its one of the best ways to keep in touch with them.

Thanks ZPI!

Cya

Hey everyone,
I recently joined up on the ZPI forum asking some questions, and recieved some pretty good information about what to expect with their Xb. Atleast, the first stages anyway. I hope ZPI doesn't mind me sharing, i know they have a lot to do so i hope they look at this as helping them out instead of putting more pressure on the build.

Anyway, heres the deal thus far:
They xb arrived late due to some unknown errors. The paperwork had been done, and completed but a hold up took place so it was late getting to them. (don't know details) They plan to take out the motor sometime next week, hopefully, to check out everything and see how the 1nz works. They will then start to plan, design and build parts for us.

Some parts out/will be out first:
1. ZPI Pulley - The pulley weighs 1.1lbs and is available now. $135 dollars i believe it is more expensive than the Perrin, however there are no fitment issues like we have all experienced, heard about with Perrin. Also, the ZPI pulley is lighter than the Perrin to give best results in acceleration.
2. ZPI Pistons - These pistons are not out just yet, but will be soon. They have two, one for N/A and one for F/i. The price will be roughly $595.00 for either/or. The N/A compression will be 11:1 where as the F/i will be 8:5:1.
3. ZPI Head Package - Kenny didn't give me any specific details on this part, but i can imagine its going to be worth the price. He told me that this product will hopefully be ready in the up coming weeks. Price is still unknown obviously.

I started this forum to keep everyone updated with their progress, because i know there are others like me just waiting for products to come out from ZPI, and other great companies. Information can be provided on their website, i suggest those who are interested in the company to sign up on there forums, its free obviously and i have found its one of the best ways to keep in touch with them.

Thanks ZPI!

Cya

mmm more compression for the N/A....good. Can someone calculates possible hp gains on this......

good info!!


ive been watching this also, a gain for na would be sweet as hell if it could be done

good info!!


ive been watching this also, a gain for na would be sweet as hell if it could be done

Thanks, figured a lot of you would like to stay in the know. Since i'm on here all the time and constantly talking to people, i tend to know about parts before they come out on the market. I guess im lucky. heh

Anyway, n/a gains will, and can be done. New head, new pistons, new rod, intake, header, exhaust, hopefully someone can come out with a cam upgrade, someone figure out our crisis with the fuel/ecu management and you'll be set with a good amount of power. Good amount for power to weight, pick up and so on. Buy a light weight crank pulley, if you have a manual short shifter performance clutch, if you have an automatic ATF cooler and bam. I bet all of this would give a n/a 1.5 a good 125-130whp tuned correctly.

:yawn: I'm tired.

Anyway, as for the estimated whp gains off the pistons. Its kind of hard to make a good estimate as far as gains go. If i had to take a reasonable guess i'd say give or take 10whp. Maybe 15whp. I don't know, its a small motor so i don't know how significant the gains would be on this. However, its a great investment definitely if you plan on putting down power. Its a must.

Cya

I would spend the $$ on the pistons alone even if the gain was only 6-10hp. because I would get even more hp out of my car without having to go f/i which I cannot afford in one shot.

I know I could likely save for a while and do it, but just thinking on a simple and easier level.

Is the ZPI Pulley Underdriven??

I have yet to get a straight answer to this.

Is the ZPI Pulley Underdriven??

I have yet to get a straight answer to this.

No, just lightened.

um yeah... a lot of money to spend in hopes that the ecu can keep up and that the motor doesnt blow.....

um yeah... a lot of money to spend in hopes that the ecu can keep up and that the motor doesnt blow.....

head, pistons and crank pulley shouldn't blow this motor. Its not that weak overall, it just has some very weak points. Mainly ecu/fuel and rod. Which honestly, is typical for a small 4cyl. ECU should be able to keep up with these mods and header, intake exhaust with it. When i had the gs-r, i didn't have to worry about ecu until i broke in the 200whp mark. I had these mods, once i did a cam swap thats when the ecu failed to hold its own. I wouldn't worry about it with these, ZPI or some company should be putting out a ECU re-map or complete swap kit soon hopefully. Theres been lots of talk, and if we keep asking for ZPI to do it they might be the company to push for it. When they were getting their xb, they asked us on the forum what we wanted. Most people said "motor swap", but i don't think thats something they are looking into right now. I'd much rather them fix our existing limit problems and go from there. Thats just me. I know theres a few people out there that would like to see the same thing, i'm sure theres more that i haven't talked to yet.

And no, the ZPI pulley is not underdriven. All it is, is light weight.

Cya

Is the ZPI Pulley Underdriven??

I have yet to get a straight answer to this.

No, just lightened.

Finally a straight answer, Thanx Rubs.

something that everyone also seems to overlook is the timing. When you start to boost a motor that wasnt made for it, theres a lot more to worry about than rods. I would love to see what kind of timing people were running when their motors blew. Unfortunately, as we all know piggybacks wont be able to fully resolve a problem like this. I would say that its the timing thats the issue, then the rods, but what do I know

something that everyone also seems to overlook is the timing. When you start to boost a motor that wasnt made for it, theres a lot more to worry about than rods. I would love to see what kind of timing people were running when their motors blew. Unfortunately, as we all know piggybacks wont be able to fully resolve a problem like this. I would say that its the timing thats the issue, then the rods, but what do I know

Well timing is a big concern, but i feel certain this is something ZPI will take care of. Their care with planning their products are something most major companies tend to overlook, which is one reason why i'd go with ZPI over another. Of course, this is generally speaking. HKS does an amazing job delivering products and product help with fuel, timing, everything. Companies like Greddy, however, tend to overlook details. Not always, but they do slip more than others i've discovered. Nothing too major per se, but can be costly for fixes and repairs if not taken care of.

With this said, this is in part why i don't discuss timing when i talk about ZPI. However, if they do overlook it they will be attacked with concern. I'm sure they will do just fine.

But speaking in terms of n/a and f/i, rods, fuel/map/ecu is my major concerns with any company. I hope ZPI understands this flaw with the 1nz, its a weak and cheap motor from the factory. And in order to put out some very respectable numbers, and high numbers (not talking about 300whp) then these things are a must as far as the check list.

Good post though, a lot of people do tend to forget about timing.

You know my friend, you know. :lalala: :clap:

Cya

*sigh*


They need to be developing some type of swap rather than parts IMO.

cant you do swaps now?? I know some have already done swaps on this site..though I dont know much more than that lol

*sigh*


They need to be developing some type of swap rather than parts IMO.


exactly!!!!

*sigh*


They need to be developing some type of swap rather than parts IMO.

What exactly is it you want? A 1zz is a direct bolt up with motor mounts, and should be minimal to virtually no modifications to install it. The 2zz you would have to change some motor mounts (i believe) and a few other things, but thats a swap thats not even worth it. A 1zz is worth it and more of a practical, logical swap. It can be done already, so theres nothing ZPI would need to deliver for it. Except parts, but theres already a good amount of aftermarket for it.

Just my thoughts.

Cya

the 1zz cannot use stock motor mounts and the tranny's will not intermingle.

the 1zz cannot use stock motor mounts and the tranny's will not intermingle.

i thought it would, oh well. that explains why there are no kits available, like we talked about it would be expensive. at least, thats where my knowledge leads me to believe. it may be semi-cheap, but to build the 1nz would be cheaper than a motor swap than build, although it may give you more whp its not something everyone wants to go with. who knows, i think building the 1nz is fine. thats what i've been doing, and will continue to do so. :clap:

cya

I know some folks hoping to get the 4age 20v swap complete and boltable by summer (roughly). That means you can buy the kit or parts of the kit to drop in your xB. Problem is your gonna be running older JDM equipment. 20v with quad throttle bodies and a nice turbo with equal length runners off to the side by the battery should be sexy. Should EASILLY make 250hp. Thats my plans in the next year or so. This is of course with a standalone and complete swap, including tranny. Sure, Ill only be able to go 150mph but thats plenty in a box. :)

20v. lol. hello no smogability in cali ever. it's jdm only meaning it has no ports in the head for egr... lame.

Well, I'm not in a smog area, nor am I fortunate enough to live in Nazi Land. I just love the capibility of 8500rpms, LSD, 6 speed, and 250+ hp. EGR ports are overrated. :) I'm shooting for 20mpg once this goes in.

Thanks for the support. We are excited about the xB product line. We are aware of the premature failure of these engine especially boosted applications. We will take this into consideration when developing parts.

Timing is always an issue this is why we use the Greddy Emanage and its ability to control such. Sometimes this is not needed sometimes it is.

We have a head package done, pistons are done and on the shelve as our the crank pulley’s.

We will design a turbo kit for this application very soon hopefully to be released by the first of the year.

Thanks

-Kenny

I would love swap kits. 4EFTE, 4AGE are both awesome motors that I would want to swap a but down the line of my car.

Thanks for the support. We are excited about the xB product line. We are aware of the premature failure of these engine especially boosted applications. We will take this into consideration when developing parts.

Timing is always an issue this is why we use the Greddy Emanage and its ability to control such. Sometimes this is not needed sometimes it is.

We have a head package done, pistons are done and on the shelve as our the crank pulley’s.

We will design a turbo kit for this application very soon hopefully to be released by the first of the year.

Thanks

-Kenny

Cool, can't wait to see the whp numbers are turbo design!

Cya

it looks like i might be the prototype xA for the turbo from ZPI...i went and talked to kenny today. hopefully will start everything next week...ill keep everything updated

it looks like i might be the prototype xA for the turbo from ZPI...i went and talked to kenny today. hopefully will start everything next week...ill keep everything updated

:clap: , i wish i was one of their prototypes. Lucky man, be sure to keep us posted on everything. Last i heard they just wrapped up the head package, pistons have been out and light weight pulley has been out.

Ill keep everyone updated...im still debating on what to do and how far i should take it...my personal goal is 200whp, but Kenny says we can get 300 if i want.

I gotta see this...are you gonna run a standalone cause you will not do it on the stock ecu. This is nothing new like it was with the tC....many people have been down this road before...sure the block could probly handle 300whp but good luck getting there...not trying to be negative...like I have said, people have been down this road before.

I gotta see this...are you gonna run a standalone cause you will not do it on the stock ecu. This is nothing new like it was with the tC....many people have been down this road before...sure the block could probly handle 300whp but good luck getting there...not trying to be negative...like I have said, people have been down this road before.

Very true, but while this is the same road its sort of at a fork. Its the same concept as what has been tried, but now theres a company backing it up and hopefully succeed. Personally, if they put out a kit that produces 150whp safely, and reliable enough to be street driven i will be impressed. It can be done, i know it can. But, i will be impressed for the fact they did something that others didn't. Sure, people have been in the 140-150whp range. But most didn't last. Mostly in part of tuning really.

If they produce 200whp, that would shut everyone up. I've been telling people the 1nz isn't hopeless once a few humps are past. Hopefully they can develope a few kits that works for both manual and autos with good results. :clap:

200whp is nothing more than pistons and an emanage...I would have been on my way to 200whp no problem if I didnt get rid of my xB...300whp is a significant claim. I wouldnt be too impressed with the 200whp but if they did somehow hit 300whp safely I would hafta bow down

200whp is nothing more than pistons and an emanage...I would have been on my way to 200whp no problem if I didnt get rid of my xB...300whp is a significant claim. I wouldnt be too impressed with the 200whp but if they did somehow hit 300whp safely I would hafta bow down

200whp i would be very impressed with, because it would be one of the few 200whp 1nz's. If i remember correctly, a while back i read/viewed an echo with a 1nz that reached 192whp safely. Basically did complete custom everything, top to bottom. He spent around $8,000 excluding his custom turbo. 300whp, that would be 150whp per liter. That would be an incredible claim of accomplishment. They already have 11:1 pistons and 8:5:1 pistons out. Too bad you sold it though.

Either way, i think we could all agree on one thing. No matter what they do put out, we can expect high quality products and either the highest numbers yet or, right up there with the rest of them. Personally, if i know ZPI we can expect them to break higher numbers than other companies are pulling currently.

200whp is nothing more than pistons and an emanage...I would have been on my way to 200whp no problem if I didnt get rid of my xB...300whp is a significant claim. I wouldnt be too impressed with the 200whp but if they did somehow hit 300whp safely I would hafta bow down

200whp i would be very impressed with, because it would be one of the few 200whp 1nz's. If i remember correctly, a while back i read/viewed an echo with a 1nz that reached 192whp safely. Basically did complete custom everything, top to bottom. He spent around $8,000 excluding his custom turbo. 300whp, that would be 150whp per liter. That would be an incredible claim of accomplishment. They already have 11:1 pistons and 8:5:1 pistons out. Too bad you sold it though.

Either way, i think we could all agree on one thing. No matter what they do put out, we can expect high quality products and either the highest numbers yet or, right up there with the rest of them. Personally, if i know ZPI we can expect them to break higher numbers than other companies are pulling currently.

CP has had pistons out for a really long time now...not really anything new...That Echo was over 192whp...it was more around 210whp if its the same one we are talking about. Echo's are lil more easier to push power because of their primitive(compared to our ECU) ECU's and are less likely to learn the curve as fast as an xB or xA.

200whp is nothing more than pistons and an emanage...I would have been on my way to 200whp no problem if I didnt get rid of my xB...300whp is a significant claim. I wouldnt be too impressed with the 200whp but if they did somehow hit 300whp safely I would hafta bow down

200whp i would be very impressed with, because it would be one of the few 200whp 1nz's. If i remember correctly, a while back i read/viewed an echo with a 1nz that reached 192whp safely. Basically did complete custom everything, top to bottom. He spent around $8,000 excluding his custom turbo. 300whp, that would be 150whp per liter. That would be an incredible claim of accomplishment. They already have 11:1 pistons and 8:5:1 pistons out. Too bad you sold it though.

Either way, i think we could all agree on one thing. No matter what they do put out, we can expect high quality products and either the highest numbers yet or, right up there with the rest of them. Personally, if i know ZPI we can expect them to break higher numbers than other companies are pulling currently.

CP has had pistons out for a really long time now...not really anything new...That Echo was over 192whp...it was more around 210whp if its the same one we are talking about. Echo's are lil more easier to push power because of their primitive(compared to our ECU) ECU's and are less likely to learn the curve as fast as an xB or xA.

Possibly, it was in that range. Personally i would like someone to come out with a stand alone for us, although we would loose traction control and a few other things, i think it would be worth it.

Yea im going with a Stand-alone...ive got to to get any real horsepower out of it. Also we are maybe going with a methanol kit, thats a BIG maybe with it...I just had my BMW totalled out so im kinda broke because i still had a loan on it...that maybe later on down the road. Anyway, i will be happy with 200 because i dont want it to be the fastest thing on the street...i just want to have a little more power than what i got while still being reliable...i may start building another engine for it from the block up and Cryo-treat everything...then go big power numbers, but for now...i just want a turbo nothing special just power

Yea im going with a Stand-alone...ive got to to get any real horsepower out of it. Also we are maybe going with a methanol kit, thats a BIG maybe with it...I just had my BMW totalled out so im kinda broke because i still had a loan on it...that maybe later on down the road. Anyway, i will be happy with 200 because i dont want it to be the fastest thing on the street...i just want to have a little more power than what i got while still being reliable...i may start building another engine for it from the block up and Cryo-treat everything...then go big power numbers, but for now...i just want a turbo nothing special just power

Trust me when i say you will be one of the fastest cars on the street with 200whp. And i'm talking about generally speaking, not comparing a 200whp xa to a neighbors 400whp sti. :rofl:

You'll be in the 13's with 200whp, that would rock.

I like that you guys are looking to ditch the ECU, biggest hurdle in all of this IMO.

Keep us posted! :)

well looks like it mite be pushed back a week or 2...im 1500 in debt because of the BMW and ive got to get another car to drive while mine is in the shop...i just bought a 91 Explorer fr 300 bucks, so im going to have to hold off a week or 2 on the turbo until i can get the money situation worked out

get off the greddy e-manage bandwagon and go with the autronic sm series. I know a few people in the area that use it and have had good results. It replaces the factory ecu and is totally tunable. I realize that it is in the $2k range, but it is worth every penny instead of trying to tune the factory ecu.

get off the greddy e-manage bandwagon and go with the autronic sm series. I know a few people in the area that use it and have had good results. It replaces the factory ecu and is totally tunable. I realize that it is in the $2k range, but it is worth every penny instead of trying to tune the factory ecu.

100% true. you know your stuff man.

there isnt going to be any high power scions running a 1NZ-FE that run with the standard ECU no matter what piggy back they use.

if you want high power u need to bight the bullet and get a standalone.

waiting to find out more on the turbo xa.

I wish people would quit trying to do the cost effective approach. One of my good friends who has been doing turbo hondas for years now has a shop here in Louisville, KY (not ZPI) and he was quoting my a few Scion owners around $3500 for a basic turbo kit. He said it would get up in price after full engine management and other small things. Plus the guy custom builds maniflods instead of the log type that ZPI uses. Also the guy will warranty his work too.

I would rather spend the money to have a reliable turbo kit on a NA motor than spend a little money just to have a turbo. What most don't realize is that without proper tuning, fuel pressure, af ratios, etc. your motor will eventually wear down and break. Plus Autronic has many sensor inputs, maps, and can be connected and programmed from a laptop. Its a pretty easy system to learn and run. I just wish people would consider it in the Scion situation.


Might be a while until you hear about the xA. But this spring i will have all the info on some turbo boxes.

I wish people would quit trying to do the cost effective approach. One of my good friends who has been doing turbo hondas for years now has a shop here in Louisville, KY (not ZPI) and he was quoting my a few Scion owners around $3500 for a basic turbo kit. He said it would get up in price after full engine management and other small things. Plus the guy custom builds maniflods instead of the log type that ZPI uses. Also the guy will warranty his work too.

I would rather spend the money to have a reliable turbo kit on a NA motor than spend a little money just to have a turbo. What most don't realize is that without proper tuning, fuel pressure, af ratios, etc. your motor will eventually wear down and break. Plus Autronic has many sensor inputs, maps, and can be connected and programmed from a laptop. Its a pretty easy system to learn and run. I just wish people would consider it in the Scion situation.


Might be a while until you hear about the xA. But this spring i will have all the info on some turbo boxes.

:clap:

Once again, RHDVIPBb likes to run his mouth, sorry to retort but ive been out to the shop he talks about, he has never worked on a scion, and his price for a turbo, is a lot higher, like quadruple what zpi wants, and they are going to let me choose and test some different turbos to see which is best for the application, garuntee he wont, and also he is using a t3/t4 hybrid turbo which is WAY to big for the 1nz-fe..even the tc. And also RHDVIPBb... where is your xB...sure you have Matt's but its not yours, you'll see when you get yours, if you do...money does play into a factor when you have a payment, and insurance, and everything else. So when you get your box then talk and say everything you want...until then...keep your mouth shut...dont whore peoples threads with info when you have never experienced the shop...or what they do or even talk to them...So back off B*tch

As for the T3/T4 comment on the tC your are wrong. Because if a well tuned celica with a stand alone can run a T3/T4 and do 13.6 quarter mile runs, the tC's 2.4L engine will be excellent with a T3/T4 and it would definately be a menace to all those unsuspecting subarus.

And by the way respect the man and what he thinks, he is absolutely correct saying what he is saying you have to spend the CASH to get good power, no way around it. Especially if you want it to be reliable.

Dezod motorsports tC turbo kit uses a T3/T4 hybrid....they are making close to 280whp and the turbo is well in its efficiency range

I realize that I am still waiting on my box, but you always think my posts are attacks at you. They aren't. Plus I have done more than enough research to understand turbo applications.


As for the t3/t4, it is a good turbo for that size of motor. It has good spool. Also, I was told the turbo is a good size for daily driven and decent hp gains.

Back to turbo choices. I would go with a t3/t4 or even a disco potato turbo for street/daily driven applications. I realize that when you want more power, you want a turbo that will give you a higher cfm rate and can hold the extra pressure. A small size turbo is good for faster spool times. Remember that the scion doesn't have a long rpm range that maybe a S2000 might have. A larger size turbo is good if you want a little bit of lag so you don't spin your tires at every stop light.

Now onto ecu. Like previously stated, the factory ECU is only good for soo much. If you don't have a good enough signal or proper tuning, the factory ecu will sense the sudden changes and try to fix the problem itself. This will result in not enought fuel and air that you need. Usually this will result in a blown motor.

A standalone unit such as Autronic SM series replaces the ECU. It has multiple ports for sensors that are vital for turbo motors. It is smart enough to sense a problem and fix it itself. Plus you can hook it up to a laptop and get accurate readouts and even do tuning while you drive (not recommended, usually helps to have a passenger).

Here is a list of some of the basics i would use on my setup.
Custom manifold (non log type)
t3 hybrid
Stronger pistons and rings.
ARP head bolts and studs
Metal head gasket
Stainless steel fuel lines
oil pan with return line already fabricated
aftermarket oil cooler
lightweight pulley
custom intake manifold (not sure the factory plastic one will hold up to a lot of pressure)
adjustable cam gears
HKS af knock amp
adjustable fuel pressure regulator
aftermarket fuel rail
koyo radiator
Autronic SM2

I realize that my list is pretty long and high in price, but you gotta pay if you want to play. Thats what some people aren't realizing.


Edited for peaceful responses.

you dont need an intake manifold...the stock one will hold fine unless you plan on running anything over 14psi...I have spiked out to 13 psi and never threw a rod or blew my intake manifold.

Oh, okay. That is one piece that I am not sure of. But if you didn't have any problems then I guess I could leave it alone. The guy i know is willing to build one just in case a few of the people I know want to go over 14 psi after the internals are built up.

I personally think a metal intake manifold would look a little better, plus you could change the size to allow a slightly larger throttle body. It would also give you a place to add a fifth injector if needed.

Is there a possibility of unwanted heat build up from the stock intake manifold?

Enough of he said she said, hes wrong no hes wrong. ZPI is what this thread is about, not how much it cost to have a well built, tuned, f/i set up.

Enough of he said she said, hes wrong no hes wrong. ZPI is what this thread is about, not how much it cost to have a well built, tuned, f/i set up.

hes right they are jacking his thread... :rofl:

But anyways, do you think or anybody reading this thinks that with a good I/H/E combo, with pistons (ZPI) and pulleys (ZPI), would it be possible to run 120 WHP?? What do people think?

Intake: Injen CAI
Header: DC Sports
Cat-Back: InVidia (axle-back, turned into a cat-back)

with I/H/E, pulley, pistons, and if possible a cam you could make that power.

I am wondering why I haven't heard much about camshafts or cam gears from anyone. I am not saying you want a lumpy cam, but a small adjustement in the right way could bump you up a little.

all ive heard about cam shafts is regrinding, but i dont know about that. And the fact that our engines our VVT-i and they work on oil pressure by a valve or a solenoid located directly on the camshaft, making an aftermarket cam has got to be really hard. And our engines are chain driven cams, so that pretty much rules cam gears out of the picture.

Besides the VVT-i is an adjustable cam gear, but we cant control it, it works on its own and i just think its too much of a hassle and to expensive to make cams that in the end wont really produce that much power. 1.5L VERY limited.

There is no replacement for displacement

Enough of he said she said, hes wrong no hes wrong. ZPI is what this thread is about, not how much it cost to have a well built, tuned, f/i set up.

hes right they are jacking his thread... :rofl:

But anyways, do you think or anybody reading this thinks that with a good I/H/E combo, with pistons (ZPI) and pulleys (ZPI), would it be possible to run 120 WHP?? What do people think?

Intake: Injen CAI
Header: DC Sports
Cat-Back: InVidia (axle-back, turned into a cat-back)

Well, light weight crank pulleys don't add any power...They just help with acceleration. With my set up i was first dyno'd 104whp, i also have an auto. However, i figured the dyno was a fluke so i went to a different place and i was dyno'd at 96whp @ 4,550rpm which sounds more about right. Which means with my set up, a manual would probably be around 104whp.

120whp with n/a set up can be done, i beleive with zpi head, zpi pistons, crank, i/h/e and you'd be 115-120whp n/a.

As for cams, vvt-i is a very tricky system. A lot of people compare vvt-i and vvtl-i to vtec and i-vtec. Vtec is set up completely different, both do similar things but at the same time, completely different. Upgrading cams could be done, but it would literally cost $1,000+ because of what would be needed to do so. Re-grind is the best solution for cam's, and from what i hear from the few that have done it the cams alone gave around 9whp, which isn't that great but you also can't really grind them all that much.

The best way to get above 120whp with the 1nz is boost, n/a theres just no where near the aftermarket support there should be to achieve decent numbers. One reason why i miss my gsr so much.

But not all is lost, after a company (hopefully ZPI) masters a few bumps in the road we should be clear for 150whp easy, which honestly, is all you need in the box. 125whp in the xb is fast due to the gearing we have, and weight.

Im not looking to break any ground speed records, i just want to have the nicest part setup possible without really having to change the computer. I dont want to deal with an expensive turbo setup for a only 150whp, its RIDICULOUS. The amount of money you have to spend to get our cras to that horsepower would put any honda in the 200+ range, so i just say make it N/A, good for daily driving, but occasionaly scare off a few hondas and corolla's.

Im not looking to break any ground speed records, i just want to have the nicest part setup possible without really having to change the computer. I dont want to deal with an expensive turbo setup for a only 150whp, its RIDICULOUS. The amount of money you have to spend to get our cras to that horsepower would put any honda in the 200+ range, so i just say make it N/A, good for daily driving, but occasionaly scare off a few hondas and corolla's.

You also have to remember, honda puts much more thought into performance per class than toyota does. 1nz is no exception.

A good n/a build will cost more than boost. Unless you are just talking about a few internal things and i/h/e and not going all out. In that case, i can see your point. N/a is extremely fun when you really get into it, but major n/a build ups isn't for our 1nz. Best way to get power is by boost if you want above 130-140whp. Otherwise, n/a probably is the best bet for you.

Could you do a stroker kit for the 1nz?

I thought they made a vvti controller. I realize it isn't the same as vtec, but could the concept be changed like a vtec controller?

Could you do a stroker kit for the 1nz?

I thought they made a vvti controller. I realize it isn't the same as vtec, but could the concept be changed like a vtec controller?

It can be slightly changed with a piggy back, but not completely.

Yes, you could stroke the 1nz but not many people have. You could only stroke it so much, 1.5l is small. You could stroke it at most to 1.7l, but even that is pushing it as far as reliability goes.

people say that there is Xb, Xa's out there with regrind cams but where are they? we need info, like what profile where they, and what issues are there with valve overlap and piston clearance.

Im not looking to break any ground speed records, i just want to have the nicest part setup possible without really having to change the computer. I dont want to deal with an expensive turbo setup for a only 150whp, its RIDICULOUS. The amount of money you have to spend to get our cras to that horsepower would put any honda in the 200+ range, so i just say make it N/A, good for daily driving, but occasionaly scare off a few hondas and corolla's.

You also have to remember, honda puts much more thought into performance per class than toyota does. 1nz is no exception.

A good n/a build will cost more than boost. Unless you are just talking about a few internal things and i/h/e and not going all out. In that case, i can see your point. N/a is extremely fun when you really get into it, but major n/a build ups isn't for our 1nz. Best way to get power is by boost if you want above 130-140whp. Otherwise, n/a probably is the best bet for you.


Im dedefinately going the N/A route, but i think it was you or someone else that mentioned something about ZPI head?? What does ZPI do to our head? Port/Polish?? Next week im definately going to buy the ZPI pistons and crank pulley, i think that should keep me ahead of the xA/xB pack, as long as i dont find a forced induction. But if you have info on that head please let me know.

Im not looking to break any ground speed records, i just want to have the nicest part setup possible without really having to change the computer. I dont want to deal with an expensive turbo setup for a only 150whp, its RIDICULOUS. The amount of money you have to spend to get our cras to that horsepower would put any honda in the 200+ range, so i just say make it N/A, good for daily driving, but occasionaly scare off a few hondas and corolla's.

You also have to remember, honda puts much more thought into performance per class than toyota does. 1nz is no exception.

A good n/a build will cost more than boost. Unless you are just talking about a few internal things and i/h/e and not going all out. In that case, i can see your point. N/a is extremely fun when you really get into it, but major n/a build ups isn't for our 1nz. Best way to get power is by boost if you want above 130-140whp. Otherwise, n/a probably is the best bet for you.


Im dedefinately going the N/A route, but i think it was you or someone else that mentioned something about ZPI head?? What does ZPI do to our head? Port/Polish?? Next week im definately going to buy the ZPI pistons and crank pulley, i think that should keep me ahead of the xA/xB pack, as long as i dont find a forced induction. But if you have info on that head please let me know.

Yeah, that was me. I really don't have any details about the head package they are offering to be honest, i hope ZPI will find this thread again and post up some new information...Maybe i'll give them an email tonight and wait to hear back from them. My guess as far as gains go would be around 10-15whp, so i would also guess its port and polish. Which would definitely be nice.

Im not looking to break any ground speed records, i just want to have the nicest part setup possible without really having to change the computer. I dont want to deal with an expensive turbo setup for a only 150whp, its RIDICULOUS. The amount of money you have to spend to get our cras to that horsepower would put any honda in the 200+ range, so i just say make it N/A, good for daily driving, but occasionaly scare off a few hondas and corolla's.

You also have to remember, honda puts much more thought into performance per class than toyota does. 1nz is no exception.

A good n/a build will cost more than boost. Unless you are just talking about a few internal things and i/h/e and not going all out. In that case, i can see your point. N/a is extremely fun when you really get into it, but major n/a build ups isn't for our 1nz. Best way to get power is by boost if you want above 130-140whp. Otherwise, n/a probably is the best bet for you.


Im dedefinately going the N/A route, but i think it was you or someone else that mentioned something about ZPI head?? What does ZPI do to our head? Port/Polish?? Next week im definately going to buy the ZPI pistons and crank pulley, i think that should keep me ahead of the xA/xB pack, as long as i dont find a forced induction. But if you have info on that head please let me know.

Yeah, that was me. I really don't have any details about the head package they are offering to be honest, i hope ZPI will find this thread again and post up some new information...Maybe i'll give them an email tonight and wait to hear back from them. My guess as far as gains go would be around 10-15whp, so i would also guess its port and polish. Which would definitely be nice.

Heres the thing im just trying to build up my car as much as possible without having to mess around with the computer. I know eventually i will have to mess with the computer but with the pistons and maybe a little shot of nitrous (25 shot). Maybe the stock ECU will take it but i doubt it, so im not sure. Maybe put in celica GT headers...??? Who knows but for now pistons.

Okay guys I know that we have been bad at updating this thread. The truth is that we are swamped and trying to get caught up on tC turbo kits. This is not to say that we have forgot about the xB owners out there. We did buy in to tear apart!!!:doh:

We will start developing parts in the first part or February you can expect a turbo kit shipping hopefully by the end of March. We will start taking orders mid-march.

We have a head package developed we just need someone to test it. We would offer a substantial discount to someone who would be interested in this. We really kind of feel like we are late getting on the xB so we want to make sure that there is a lot of demand for the parts before we start making them. We have not sold many xB parts or even had inquiries regarding them. We are getting caught up so we can crank some parts out we just need to know what you want.:come:

Email me or AIM me during the day let me know there is a market for the parts and we will build you anything that you want.

Thanks

-Kenny
kstrickler@zeropointindustries.net
AIM: KennyStrickler

that is a good point i have thought of myself....we all want things, but if nobody is even buying what is out there then why would a company spend $$$ to research and make new things?? I wouldnt!

i for one would be very interested in internals...but i think the key for most people is that ..if i am going to do all the work of opening up the engine..i want to do more than one thing at once..not just one thing...then wait a couple months..have to open it up again etc...

unless i am the only one thinking that? ithough i guess i could order the parts and stock them up until i get what i want.

being reasonable, what parts would an NA person with an xB really need to make it worth it? rods & pistons? what would be involved to gain a 8-15hp gain being NA with internals?

(sorry im still a learning newb) :loser:

that is a good point i have thought of myself....we all want things, but if nobody is even buying what is out there then why would a company spend $$$ to research and make new things?? I wouldnt!

i for one would be very interested in internals...but i think the key for most people is that ..if i am going to do all the work of opening up the engine..i want to do more than one thing at once..not just one thing...then wait a couple months..have to open it up again etc...

unless i am the only one thinking that? ithough i guess i could order the parts and stock them up until i get what i want.

being reasonable, what parts would an NA person with an xB really need to make it worth it? rods & pistons? what would be involved to gain a 8-15hp gain being NA with internals?

(sorry im still a learning newb) :loser:

Like we mentioned earlier in this thread, which is what im going for, is the pistons and maybe (depending on price), the head. The head, i think, seems will be very expensive, but $600 for pistons and $200 for the pulley is resonable, considering how nice that pulley looks. That mixed with a good intake, header, exhaust combination you could have maybe 120WHP, which is fine by me. But if you want to hit the 150WHP mark than your going to have to go turbo and that just isn't the route for me. Our computers are a hassle, and ive heard so many wonderful things (sarcastically speaking) about them that im really motivated to mess around with mine. NOT!!!

I want high compression pistons, a shot of nitrous (25-50 shot), bigger injectors (celica GT), with my existing I/H/E combination and i should be good to go with a stock ECU (I think, dont quote me on that) and hopefully hit the 120 WHP mark (without NOS).

Okay guys I know that we have been bad at updating this thread. The truth is that we are swamped and trying to get caught up on tC turbo kits. This is not to say that we have forgot about the xB owners out there. We did buy in to tear apart!!!:doh:

We will start developing parts in the first part or February you can expect a turbo kit shipping hopefully by the end of March. We will start taking orders mid-march.

We have a head package developed we just need someone to test it. We would offer a substantial discount to someone who would be interested in this. We really kind of feel like we are late getting on the xB so we want to make sure that there is a lot of demand for the parts before we start making them. We have not sold many xB parts or even had inquiries regarding them. We are getting caught up so we can crank some parts out we just need to know what you want.:come:

Email me or AIM me during the day let me know there is a market for the parts and we will build you anything that you want.

Thanks

-Kenny
kstrickler@zeropointindustries.net
AIM: KennyStrickler

I completely agree with you guys you must have tons of orders for the tC turbo kit considering how sweet it has turned out, but if you could give me a rough estimate on how much will the head package cost I could consider buying this along with the pistons. What exactly is included in the head package??

head & pistons...thats what i couldnt remember. I would be curious what would be included as well...i also wonder what parts i would have to replace as part of that install...gaskets and such (i have no idea, just asking)

i obviously will have a lot of research to do, but it doesnt hurt to think ahead!

^^^ agree with JSosa. Interested in the head package in order to have everything done at one time vice stocking parts for months and then slapping everything together.

Okay guys I know that we have been bad at updating this thread. The truth is that we are swamped and trying to get caught up on tC turbo kits. This is not to say that we have forgot about the xB owners out there. We did buy in to tear apart!!!:doh:

We will start developing parts in the first part or February you can expect a turbo kit shipping hopefully by the end of March. We will start taking orders mid-march.

We have a head package developed we just need someone to test it. We would offer a substantial discount to someone who would be interested in this. We really kind of feel like we are late getting on the xB so we want to make sure that there is a lot of demand for the parts before we start making them. We have not sold many xB parts or even had inquiries regarding them. We are getting caught up so we can crank some parts out we just need to know what you want.:come:

Email me or AIM me during the day let me know there is a market for the parts and we will build you anything that you want.

Thanks

-Kenny
kstrickler@zeropointindustries.net
AIM: KennyStrickler

Which is why Kenny is the man! :clap: :rofl: I haven't gone up to zpi yet or ordered anything quite yet because i'm waiting to get my credit straight prior to doing so. But i'm honestly surprised people aren't buying the products you have right now, i think part of the reason is because a few people believe the 1nz is useless so they don't see a reason to spend the money to build up.

Maybe if you guys could provide some dyno runs with the products and videos in march or febuary, and show whats going on people will buy the products. Otherwise, i know many i have doubts.

I personally, don't have doubts but i would like to see what kind of numbers you guys can manage to pull with n/a and f/i..it would definitely shut some of these kids up.

Take your time guys, it should be worth it in the end.

Take this into consideration:

Turbo xA: $4,000 in parts and $1,200 manual labor = 150-160 WHP

N/A xA: $1,500 in parts and $500 manual labor = 120 WHP

I dont know about you, but 30 extra HP for $3,200 just doesnt seem reasonable and not to mention all thw rok you have to through to get the computer running correctly. Or go stand alone and on comp alone you will spend $1,000+.

Im definately staying in the N/A route and if anyone else is interested in the head it costs $550 with a $700 core charge, thats what was told to me by Kenny at ZPI racing in an email that was sent to me yesterday regarding this head package. This head mixed with their pistons and pulley, with a good I/H/E combo, you are good to go. But has asked me if it is for an xB, and i emailed him back but probably wont get an answer till tommorow because i emailed late. I hope that this head package fits both the xA and xB, besides i wouldnt understand why not....

Maybe if we get enough xA owners interested we might a group buy discount. :bow: :love:

550 with 700 core charge...for the life of me i forgot what a core charge is lol

$700 core charge is what they charge youi to make sure that you send your head to them as soon as you swap[ the new one in. This money will get returned to you as long as they receive your stock head again, but if you dont send in your stock head than they will charge the $700 and the head will cost you $1250.

The smart thing to do is send your old head back and get the $700 back. As soon as ZPI and hopefully a couple of others jump on the xA head band wagon, then maybe we might even be able to geta discount, but for now lets just wait and see what the people at ZPI have in store for us.

Running a port and polished head with high compression pistons, am i going to have to change my computer? Will it run lean because of the compression... Im not sure can someone enlighten and tell me if running high compression will require more fuel??

Im really looking into buying the head and pistons and i have emailed ZPI various times, but i was wondering if anyone out there reading this post knows if im going to have to mess with the coomputer if i install these parts?

i cant way to see some dyno's, im so curious what the gain is from doing pistons & head..i would assume it must be at least decent otherwise it wouldnt even be worth doing.

550 with 700 core charge...for the life of me i forgot what a core charge is lol

Core is $600, not $700..thats what Kenny told me at least. Also, whoever test out this head for the pays $300 + install. (if i remember correctly) I'm thinking about doing it but i need to know how much install is from kenny before i do, i can't afford too much money at the moment.

Gains should be respectable.

But remember are all of us running stock ECU's, i know i am, and i dont know if stock ECU, injectors, spark plugs, wires, etc..., will hold off to the high compression. Im into NOT changing the computer and thats pretty much why im choosing N/A and ive also heard of a few tricks to get around the computer.

If you get celica GT injectors and throttle body they say the gas increase is pretty significant, but then again this is a pretty crappy way of getting around the computer, but it will work. I know a bunch of people that have done it and the only down side is that fuel consumption becomes exagerrated.

If i could put these parts on and not even have to worry about fuel, even better, but if something had to be changed then i will be looking into it. So if ZPI could enlighten us, that would be wonderful.

Is the ZPI Pulley Underdriven??

I have yet to get a straight answer to this.

No, just lightened.

:nails: Does this mod give any appreciable benefit for the cost? Would it be noticable in everyday driving conditions? :doh:

Is the ZPI Pulley Underdriven??

I have yet to get a straight answer to this.

No, just lightened.

:nails: Does this mod give any appreciable benefit for the cost? Would it be noticable in everyday driving conditions? :doh:

Yes, it improves acceleration to get you through the powerband faster. ZPI's weighs 1.1lbs and i would recommend their's over perrin and others.

If you usually shift around 2-3k its not something you would notice strongly, however the days you are rushing or just want to have some fun in a controlled environment, or away from heavy traffic you would notice a very big difference. Its about equals the difference of 10whp give or take as far as the pull goes 1-2nd. Once you get in higher gears of course it would be about the same. So in other words, its basically the difference of stock compared to i/h/e as far as acceleration goes.

So if ZPI could enlighten us, that would be wonderful.

yeah, i'd like some info from ZPI too. i sent an email, but have yet to hear back.

will the compression increase require new connecting rods? will the crank shaft be okay too?

there's a piston kit at http://www.importperformanceparts.net/imports/pek-toyota.html that includes gaskets and bearings. i'm wondering if they make a difference and if we could get something like that but with the higher compression pistons like ZPI 's.

i'd also like to have an idea as to how much of a power increase these parts will offer. i'm not expecting miracles, but if i'm gonna sink $2-3k into performance parts, i want to be certain that it's worthwhile.

The 8.5 sounds perrrrfect :D.

What Kenny, from ZPI, has told me that the port and polished head will give 21+ HP (according to ZPI). You mix that with the pistons and pulley, with a good I/H/E combination you should be good to maybe about, im guessing here, 130-140 WHP, if tuned correctly. Kenny also told me that your crank and piston rods should be fine, because the ocmpression ratio doesnt make a huge jump its from 10.5:1 to 11.1:1. Its a difference, but not that much.

The only thing i think we have to worry about is more gas and better spark. If you plan on changing the computer, your going to have to go stand-alone because piggy backs SUCK!!! (for this car).

As for those pistons that proctorsilex mentioned, i think those are for forced induction application. Those are low compression, forged, wiseco/ross pistons and head gaskets. All those parts for the echo that were metioned on that page are for F/I applications.

What Kenny, from ZPI, has told me that the port and polished head will give 21+ HP (according to ZPI). You mix that with the pistons and pulley, with a good I/H/E combination you should be good to maybe about, im guessing here, 130-140 WHP, if tuned correctly. Kenny also told me that your crank and piston rods should be fine, because the ocmpression ratio doesnt make a huge jump its from 10.5:1 to 11.1:1. Its a difference, but not that much.

The only thing i think we have to worry about is more gas and better spark. If you plan on changing the computer, your going to have to go stand-alone because piggy backs SUCK!!! (for this car).

Hm, 130-140whp? Which means for an automatic you would be around 110-115whp which isn't bad at all.

What Kenny, from ZPI, has told me that the port and polished head will give 21+ HP (according to ZPI). ...
As for those pistons that proctorsilex mentioned, i think those are for forced induction application. Those are low compression, forged, wiseco/ross pistons and head gaskets. All those parts for the echo that were metioned on that page are for F/I applications.

that sounds great, but i want to see this info on zpi's site. not that i disbelieve you, but this is a lot of money for most scion owners to be sinking into their cars. so i want some official backing.

yeah, the piston kit that i linked was for f/i (this thread is in the f/i board for some reason anyway). i don't think that lowered compression is good for much else, but the kits come with bearings and gaskets. i'm guessing that the extra parts are of a higher quality than stock, but maybe they do not matter. anyone have info or experience? the compression increase is not that much, but i still worry as the 1nzfe is based off a 1.3L version. i'm also concerned about valve timing and such. from what i've read, the 1nzfe does some interesting things with the valves to improve efficiency. i want to see zpi put down more than a price tag for these products.

flywheel, pulley, pistons, head, and gaskets (stock or aftermarket) add up to beaucoup bucks!

jsosa, you also metioned tuning the 1nzfe. do you have any info on doing that? i was under the impression that the stock ecu was less than cooperative with tuning?

Everyone, what are your plans for the rebuild? will you be using your stock engine or finding a second one to work on while you use your car? have you taken apart a 1nzfe before? anyone know what to expect in terms of work hours?

thanks

I am currently rebuilding my 1NZ-FE. It will have the block sleveed and low compression pistons installed as well as new rods to withstand the increased stress of being boosted. As far as tuning goes there is a company called LMS (www.luxurymotorworks.com) that makes a Fuel Management Unit called i-Manage is kind of a piggy back and kind of a stand alone. You still run your stock ECU but the i-manage controls your A/F ratio. Any ways it shouldnt be out of commission for too long, and were hoping for about 200hp at the wheels. :pray:

Proctorsilex: In Puerto Rico there are tons of people that LOVE tuning cars and are really good at it, considering our cars are practically the same as echos, i know a few people down here runing their echos in the 15.1-15.5 range, which is HELLA FAST! But thena gain there are major engine difference between our cras, mainly ECU. Im talking to a friend of mine, which happen to be on this site, and hes planing on changing to an echo ECU and then piggybacking that one to see if it works fine. IF that turns out to be chilling, then thats what im going to do. The only downfall is that you loose traction control, but i dont care considering i want to remove it anyways.

I also agree, that 21+ HP is ALOT to get from just a head and im also pretty worried about the strength of our internals. ZPI really has to update this thread and give us the low down with these parts. I have a friend that works for toyotacustomer service and he gave me the hook-up with the professionally trained, supervisor for the all the mechanics in that specific toyota dealership. This guy sneaks my car in for warranty inspections, even though my warranty is non-existent, and he does ALL the work to my car that i couldnt do, like mounting my pistons and head in the future. Its really good to have a toyota authorized and trained mechanic working on your car.

I dont know why this thread is in forced induction...

For now im trying to finish my suspension setup, im only missing the TRD rear frame brace and im good to go, but on the 5th im taking my baby to the track (its a karting track, so short wheel bases win :P :clap:) to see how it handles, ill post up a few pictures and maybe some good videos. For now the head and pistons will have to wait until i get a good amount of information from ZPI, like you said, not just price tags. For now im going to keep on doing my research and see if any other company decides to make pistons for our cars.

I started a general 1NZ-FE build thread to discuss more than just the ZPI parts: http://www.scionlife.com/forums/viewtopic.php?p=1330299#1330299

As for ZPI, Kenny answered some of my questions today:
"We can increase you compression by
milling the head also this will give you the extra power you are looking
for with the additional price tag.

You will in turn need to run premium fuel with the higher compression
but your gas mileage should not suffer"

I shot some more back at him.

After reading the 24HP thread, I am more curious than ever about ZPI's head work!

We need to torture them for more info.