Well guys I have decided to turbo and intercool my "point A to B car" because the 108hp just doesnt do it. Working on cars like the noble M400 and driving around 11 sec street cars at work, then jumping into the box is painful. I know many people are wondering about the turbo kits and how much power they make and at what AFR. I will be installing my Greddy turbo kit along with the intercooler kit this week. Since I have a dyno here I will be able to post numbers/gains right away. I hope through this project we can shed some light to what this car can do.

Yeah keep us updated on your progress and dyno #' are always good info for people.

Definitely keep us updated. I haven't seen a thread where someone has installed and gotten the Greddy running well. If you can get it to idle well with CEL and a 140+ dyno, I would probably buy it over the ZPI turbo.

SWEET!!!

exactly what I have been waiting for!

Yeah I cant wait to put that thing in. I was supposed to pick up the kit today but our supplier said that someone had put the PO in an hour before us. I will dyno it as soon as it is installed.

When you said you have not seen someone use the greddy kit and running well. what problems were they having?

When you said you have not seen someone use the greddy kit and running well. what problems were they having?

I guess mostly the CEL. They don't mention any idling issues. Check out this thread: http://www.scionlife.com/forums/viewtopic.php?t=90679

For all I know it is working fine now...it hasn't been updated in a while.

What type of gain in HP are you expecting?

What type of gain in HP are you expecting?

I did a base dyno run on my car. 89whp and 94ft/lbs. Im hoping for a 30-35whp gain and about 160hp to the crank. As soon as rods are available I will be building the bottom end. Im optomistic about the gains compared to maybe others in the forum who have gone FI because I have a dyno and can tune whenever I want or make any changes to the car. As soon as the kit is in, I will dyno it and log the AFR. If there is room for more boost or fuel leaning, I will do it.

too bad it wont be carb legal.

What type of gain in HP are you expecting?

I did a base dyno run on my car. 89whp and 94ft/lbs. Im hoping for a 30-35whp gain and about 160hp to the crank. As soon as rods are available I will be building the bottom end. Im optomistic about the gains compared to maybe others in the forum who have gone FI because I have a dyno and can tune whenever I want or make any changes to the car. As soon as the kit is in, I will dyno it and log the AFR. If there is room for more boost or fuel leaning, I will do it.

There was a guy who got rods and pistons made by Carillo for his Yaris.

I believe he paid 800 something for the pistons and 1300~ for the rods?

Custom made.

Keep us updated!! BTW where do you work?

Keep us updated!! BTW where do you work?

The kit and intercooler is here. Ill try to have it installed today. The sucky thing is the kit did not come with any instructions for install. Its not that big of a deal, but it would have been nice for Greddy to specify which lines to tap in for the oil. I work at Smoothlinez. (see link below)

Ok, the turbo is in. Its NOT a direct bolt on kit as the downpipe flange does not align with the stock exhaust flange. The car does pull much better. Is it fast? I wouldnt say its fast but very peppy. Im still running the stock exhaust so we will be making a custom one this week as well as the intake.

http://smoothlinez.com/images/scion/xbturbo1.jpg
http://smoothlinez.com/images/scion/xbturbo2.jpg
http://smoothlinez.com/images/scion/xbturbo3.jpg

nice, I love to see trubo on the box. have you put it on the dyno yet?

Mmmm still using the original air box ...

yeap cant wait to see the numbers u get.... good luck

Question...what is the size of the pipe diameter where the downpipe meets the exhaust? How does it sound? Stock airbox seems iffy...should be able to just remove the airbox and add a filter right?

I modified the stock box yesterday to make my own intake. The clutch is gone. lol. Should have known it wold be. I was going to replace the exhaust also with a Greddy or HKS system but after looking at it, there wont be much improvement over stock. The best way to go here would be to go with 2.5 or 2 3/4 piping from the downpipe back.

"Stylis"/Gabe/Precision Muffler has both cat-back and header-back exhausts for the xB. They aren't mandrel bent, but they are very nice looking. I believe he uses Magnaflow mufflers and tips as a standard, but can build using whatever you want.

If you search through the "Drivetrain & Power" forum you can see one of his systems that "ProshopXB" installed. Then again, you can probably have a custom system built and installed locally for the same price. Especially if you already work at a speed shop.

"Stylis"/Gabe/Precision Muffler has both cat-back and header-back exhausts for the xB. They aren't mandrel bent, but they are very nice looking. I believe he uses Magnaflow mufflers and tips as a standard, but can build using whatever you want.

If you search through the "Drivetrain & Power" forum you can see one of his systems that "ProshopXB" installed. Then again, you can probably have a custom system built and installed locally for the same price. Especially if you already work at a speed shop.

We will be doing our own exhaust. Paying for a pressbent catback is really not worth the time or money. If you look at the bottom of the car, the stock piping was not crush bent but rather smooth. The only restriction, which is very little, is from the muffler itself. An aftermarket system just frees up the gas flow from the muffler. A full downpipe back system can be put together for under $300. If you want a cat, expect to pay about $100-140 more.

So are you going with a cat or with out a cat? Why dont you just run a dump pipe? Might sound like a tank but would work and be less expensive. ZPI will have pistons and rods very soon, the piston price is $595, rods ??. You get it on the dyno yet? I think were all very interested in the #'s and how they will compare to the other F/I options.

Did you ever throw a CEL?

Does anyone know if the install directions for this kit is on the net somewhere?

Does anyone know if the install directions for this kit is on the net somewhere?

Spider, I know when Rocket got his Super Charger from them there was either no instructions or they were in Japanese. So he called them and they emailed they instructions in English to him. Just an idea.....

Hum, I'll give it a try. Thanks.

I just called Greddy they don't have english instructions yet you just have to go off the pictures.

yep, I just got the same answer via email. Only japanese version.

If you're thinking of going turbo I'm selling mine check the clasified section

Sounds like they are going to lose customers, because of this issue. That is not very good customer service. This is why i will be giving my buisness to another better company.

Hi GUys, sorry it took so long to post the dyno numbers. My clutch failed so I had to wait a while for the new clutch to break in. Here is the dyno run from today.
http://smoothlinez.com/images/xbturbodyno.jpg
This is with the Greddy turbo kit. Other than that the car is bone stock. So far, I am very happy with the kit but am someone unsatisfied with the EManage mapping. The car is running too lean. There is no sign of knock but at an AFR of 13.5 I would feel better if the motor had more fuel. There is no aftermarket intake on my car other tham me cutting out the plastic box and putting a cone filter in. The car makes a ton of TQ but lacks high end power with a max at only 116. Thats only a 26hp gain from stock. Im hoping that with a full downpipe back exhaust, I will be able to see 120s.

dam bro that thing looks like a polygraph test...I dyno'd 123whp on an auto tranny with about 135 ft/lbs@ 6 psi...I also had a return line fuel setup with larger injectors and perrin fuel rail, 255lph pump, and adjustable fuel pressure regulator

dam bro that thing looks like a polygraph test...I dyno'd 123whp on an auto tranny with about 135 ft/lbs@ 6 psi...I also had a return line fuel setup with larger injectors and perrin fuel rail, 255lph pump, and adjustable fuel pressure regulator

Did you remove the stock regulator? What size injectors are you running? I was thinking about getting the 300cc tomorrow.

If you remove the in tank regulator the pump will not pump fuel...I used the Celica GT-
S injectors which are 320cc straight drop in, no harness clips or having to machine the head to fit in the rail. I sold my xB back in October, but I was running the TSI kit with my own fuel setup...I was using a Camcon to control the A/F ratios but the Camcon was junk. One thing I would suggest would be to go a step colder on your spark plugs, that will help with some of the sputtering you seem to be experienceing from looking at the dyno, you could also be maxing out your MAF voltage...try the plugs and a retune first before you go crazy with anything. Out of the box tunes are junk when it comes to different areas and obviously every vehicle will not respond the same to the identical settings.

If you remove the in tank regulator the pump will not pump fuel...I used the Celica GT-
S injectors which are 320cc straight drop in, no harness clips or having to machine the head to fit in the rail. I sold my xB back in October, but I was running the TSI kit with my own fuel setup...I was using a Camcon to control the A/F ratios but the Camcon was junk. One thing I would suggest would be to go a step colder on your spark plugs, that will help with some of the sputtering you seem to be experienceing from looking at the dyno, you could also be maxing out your MAF voltage...try the plugs and a retune first before you go crazy with anything. Out of the box tunes are junk when it comes to different areas and obviously every vehicle will not respond the same to the identical settings.

After the first dyno run, pulled the spark plugs and they were done. We put in new NGK iridium plugs and that dyno graph was actually with the new plugs. I think the problem could be from the AFR mapping.

did you replace them with a stock heat range iridium or did you guys go one step colder with around a .032 gap?

did you replace them with a stock heat range iridium or did you guys go one step colder with around a .032 gap?

Im using NGK IFR5E11 gapped at .035

thats the stock heat range...try one step colder and gap it a lil bit tighter and you should see a change

thats the stock heat range...try one step colder and gap it a lil bit tighter and you should see a change

Do you happen to have the part number for the colder plugs?

very weird that theres such a HUGE torque gain yet a minuscule at best hp gain. hell i almost have that much hp n/a.

very weird that theres such a HUGE torque gain yet a minuscule at best hp gain. hell i almost have that much hp n/a.

My guess is the fuel map and the stock dinky exhaust. THe piping is sooo small that the top end hp gains are minimal at best compared to stock. At this point, Im only getting a 26whp gain from stock which is still not that bad.

Simplyscion, what color were the injectors you used? do you remember? Also why is it better to gap the plugs tighter?

Simplyscion, what color were the injectors you used? do you remember? Also why is it better to gap the plugs tighter?
i used the yellow injectors...the reason why you gap the plugs tighter is because the spark becomes stronger and thicker creating a smaller window of losing spark.
Honestly, I dont think your numbers are too far off from what Greddy advertises, but if you definitely get yourself a 2.5" turbo back exhaust you will see some nice gains.
I also dont remember the plug number, I think it may have been something like BKR6YE or something like that. I will look to see if I have an old box lying around.

Does anyone know if the install directions for this kit is on the net somewhere?

Spider, I know when Rocket got his Super Charger from them there was either no instructions or they were in Japanese. So he called them and they emailed they instructions in English to him. Just an idea.....

All of the Greddy Superchargers now shipping come with English instructions. If you have any problems just email Chris Lum in R & D @ Tech@greddy.com and he'll send you a PDF of the instructions. The one I got came with English instructions. Again I'm holding out and probably selilng this thing and going with the ZPI setup...

The Greddy turbo kit has no instructions nor pictures so youll just have to play around and hope everything fits together.

^^^try NGK platinum BKR6YE...cross reference it to an iridium and gap them to what I told yo to

^^^try NGK platinum BKR6YE...cross reference it to an iridium and gap them to what I told yo to

I looked up the plugs I got on the NGK site and the ones I got are actually 1 step cooler than what the XB one is on the NGK site. I gapped them to .30 and the hesitation went away. :P Thanks for your help!

rollhard - any updates? exhaust installed? track times?

rollhard - any updates? exhaust installed? track times?

hiya, well not many updates. A few people from the boards have came to see the car and we went out for a drive. They were very impressed with the amount of tq this little motor is putting out. I dynoed a TC yesterday and it made 143wtq. My xb makes 149wtq. Hehe, more tq than a 2.4l in my 1.5. Anyhow, I decided to go with the Magnaflow exhaust with a carsound cat, as I have had much success with them. Im putting on injectors from an Elise then it will go back on the dyno. I'll keep you all updated. Thanks for the interest

so did the greddy kit come with an intercooler or did you have to get that separate? it would b ok to run the kit without the intercooler right?

so did the greddy kit come with an intercooler or did you have to get that separate? it would b ok to run the kit without the intercooler right?
You can run the kit without the intercooler/bov as they are upgrades.. but it will give you more power especially with the intercooler + provide a safer boost condition... And no the kit does not come with the intercooler stock.

so did the greddy kit come with an intercooler or did you have to get that separate? it would b ok to run the kit without the intercooler right?

You can get the intercooler upgrade for about $500. Its worth it if you are looking to make even more power later on. I recommend it for the CA people because of our 91 octane.

does this kit work for auto too?

does this kit work for auto too?

You know, Greddy states that it is for the manual cars but someone has the kit on their auto. See link http://smoothlinezforums.com/viewtopic.php?t=36

i suggest our fuel rail for sure hands down a great part!!!
http://perrinperformance.com/assets/images/scion/fuel_rail01.jpg

this is not an updated picture tho it is suppose to say perrin like all the new rails!!!

i suggest our fuel rail for sure hands down a great part!!!
http://perrinperformance.com/assets/images/scion/fuel_rail01.jpg

this is not an updated picture tho it is suppose to say perrin like all the new rails!!!

I ordered one like 2 months ago from sciongarage....never got it, never heard from them so I cancelled the order.

That is totally frustrating! WE have them here ready to go! Call us directly and we can get it sent out today! Sorry for any previous issue you may have had. Customer service is VERY important to us. Let us know how we can help further. Thanks again for considering PERRIN for your ride!

Order #212
Date: 05-24-2006 09:18:27 PM

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Perrin Fuel Rail System : Scion xA, xB #58

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Well, i lied. It wasnt 2 months ago, but long enough.

Hey rollhard,

This is my first time in any forum. I've looked through as many topics as I could on F/I on this site and in my opinion, you seem to have the most knowledge and experience (shared at least) on the Greddy Turbo Kit. I have a Greddy kit coming in for my XB. I just got the kit with no intercooler due to lack of funds. I was actually thinking of doing my own intercooler setup and was wondering what is the intake & intercooler piping size for the Greddy Kit? Also, what are the dimensions on the intercooler?

Hey rollhard,

This is my first time in any forum. I've looked through as many topics as I could on F/I on this site and in my opinion, you seem to have the most knowledge and experience (shared at least) on the Greddy Turbo Kit. I have a Greddy kit coming in for my XB. I just got the kit with no intercooler due to lack of funds. I was actually thinking of doing my own intercooler setup and was wondering what is the intake & intercooler piping size for the Greddy Kit? Also, what are the dimensions on the intercooler?

You can run the Greddy kit with no intercooler safely. If I were you, I may run the kit as is and save up for the intercooler later on. At the low boost levels, you should be ok. I believe the piping is 2".

hey rollhard, how come the ZPI turbocharger dynoed at around 180 hp at 7.5 psi? yours only got 26 more hp with the turbo kit and the intercooler? go to ZPIRACING.net and watch the dyno video. i was thinking about getting the same greddy turbo kit that you got but after reading everything that youve been saying about it, im kinda having second thoughts. do you think there is a big difference between the greddy turbo kit and the zpi turbo kit?

I don't think Rollhard is on this site as often any more. I do think he is pretty happy with his kit though. There are just some things you have to understand and accept with any boosted xB. If you look back through his posts, you can see where he shared this.

As far as the ZPI dyno. There has been controversy about that dyno run since the day it was posted. And at this point in time it isn't even relevant any more. Since that dyno the following things have changed on the ZPI kit.

16g to 14 b Turbo
piping
tuning
engine management

And I am sure a whole lot more. Any one of those items in and of its self would remove any validity of that dyno run. At least as it relates to the kit ZPI is currently selling.

Now, I am not knocking ZPI. The quality, performance and reliability of their product on a mass produced level is yet to be seen. I, for one am hopeful. Even though I doubt I will ever consider one of their kits for purchase.

ohh ok i see. so you would go greddy for a turbo kit? cuz thats basiucally what it came down to to me. it was either the ZPI or the GReddy. hey could you put a blow off valve and intercooler and all that good stuff on a supercharger as well or no? ive always wondered that. thanks for all the into man<3

ohh ok i see. so you would go greddy for a turbo kit? cuz thats basiucally what it came down to to me. it was either the ZPI or the GReddy. hey could you put a blow off valve and intercooler and all that good stuff on a supercharger as well or no? ive always wondered that. thanks for all the into man<3

You could put a intercooler on, but you would lose pressure/ PSI from the SC... The SCers for are cars do not pump enough boost/ PSI to warrant an intercooler for cooling the air and I think you would need it to push way more PSI so as to negate the parasitic loss of the intercooler and extra piping.

A BOV as far as I know wouldnt do you any good on a SC setup.. They are used manily for turbo's, so as to let air out and not get compressor surge at the turbo after the TB has closed.. You might be able to do a BOV on a PE SCer, becuase it does actually have a pipe going into the TB...where the Greddy and Blitz actualy sit and feed on to the intake manifold. They tC SCers use some type of air bypass for there setups and I know one guy was making one that made a BOV sound..

So I guess anything is possible with time and money.. Rollhard or anybody else please correct me if I have misspoken and given wrong info..

What do you think would give the xb more whp and wtq? Just wondering. Even tho I would get a turbocharger, I still wanna know. Those superchargers look AMAZING on a box tho!!!!!

What do you think would give the xb more whp and wtq? Just wondering. Even tho I would get a turbocharger, I still wanna know. Those superchargers look AMAZING on a box tho!!!!!

Turbo will give you more whp and wtq than the SCer will...

I agree with Proshop's statements.

The other thing to consider when talking about the intercoolers is where the heat comes from. Compressing air causes heat. So you'll get about the same heat (relatively speaking) from a supercharger or turbo due to compressing the air. What you don't get with a supercharger is any sort of thermal transfer like you do from the exhaust to the intake air on a turbo.