May be it is just me but I see all these peaple taking off the airbox and putting a high flow filter in the open under the hood. I understand the larger filter passes more air BUT the heat generated by the motor and exaust is passed stright into the untake increacing the air intake temp drumaticaly. This showld actualy decrease proformance. correct? What about the cold air boxes does no one have one to show us.

well i mean if you think about it that way, then all the short ram intakes on the market would be useless and everyone should just buy ram air. but its the otherway around, they gain hp, increase throttle response, and make a mean growl :) hehe

while it is sucking in warm air it is bringing in more air with less restriction. a cold air intake is not for everyone, so this is an alternative to that.

so in conclusion.... a ram air or a short air intake provides the tC with better throttle repsonse and overall performance?

no, there is no such thing as a ram air for the tc. a short ram intake (with the filter in the engine bay) will take in warm air, that will drastacly decrease engin performance. a COLD air intake will place the filter outside of the engine bay, drawing in cold air that is more dense, therefore increasing power.

where can i learn how to do this?

Well, I made my own intake. and it was actually very easy. There are a couple of difficult parts to it like the MAF sensor. I have not Dynoed the car with the intake yet either.

Oh and also, for you guys future reference - when you remove the stock air box you will see a plastic 2-1/2" tube that goes down into the fender and down to the front bumper and draws in cool air. Besides, I dont really care to much for the 1-3 hp gain that the addition of installing a cold air intake over a short ram for as much as they cost. Then when it rains my filter's not filling up with water.

http://img.photobucket.com/albums/v245/phoenixR34/MVC-004F.jpg
http://img.photobucket.com/albums/v245/phoenixR34/MVC-003F.jpg

Do you think the Short ram above is gaining power over the stock intake

whered you get the pipe from?

Kamikazi you have nismo pedals on a scion?

I did the same out of an accord intake. Took about an hour to fabricate. I was noticing some throttle hesitation from the heat after sitting in traffic for a while, so I went to home depot and bought a small 12"x12" piece of sheet metal and made an air box for the filter. then wrapped the pipe and the box in the thermal tape. No hesitation anymore and after sitting in traffic I can take the filter off and stick my hand in the intake tube and there is no sign of heat conduction.

yeah, what LimitedE said. Wrap the pipe all the way back to the throttle body and make an air box to shield it from engine heat. That should make a difference.

i think that you should wrap the pipe whether it be on a full CAI or a short ram intake. that cold air sucked up by the longer CAI would just heat up if the temp in the engine compartment is very high.

Kamikazi you have nismo pedals on a scion?

Yes, the brake and clutch pedal are the same exact size, so when you remove the rubber pedals, the Nismo's went right on. The accelerator pedal is a little different however, it required some modification, and epoxy to make fit. But it looks really good, I will try and get that pic up here also.

nismo? like nissan right? isnt that a little wierd

i guess its cool if they dont say nismo on them

i am concidering making one but have questions.

""do you believe the a custom made intake can produce as much hp
compared to a mass produced one, like weapon r?...

""the stock tC intake has a pipe with a "3" on it that goes down near the wheel well.. correct?>..
so it is practically a stock cold air intake?

""Does the stock tC like most new cars have a pressure sensor? most new models have map sensors. that come with some pressure sensor?
so is the that box that protrudges out of the intake that pressure sensitive object?...

""and does the "custommade intake" void the extended warrante/ the dealership's warrantee?
ty

i am concidering making one but have questions.

""do you believe the a custom made intake can produce as much hp
compared to a mass produced one, like weapon r?...

""the stock tC intake has a pipe with a "3" on it that goes down near the wheel well.. correct?>..
so it is practically a stock cold air intake?

""Does the stock tC like most new cars have a pressure sensor? most new models have map sensors. that come with some pressure sensor?
so is the that box that protrudges out of the intake that pressure sensitive object?...

""and does the "custommade intake" void the extended warrante/ the dealership's warrantee?
ty

1. Yes it can make the same if not more hp compared to the prodution ones, the stock intake is 2-1/4" Weapon R is 2-1/2" and mine is 3"

2. Yes the stock air intake system is somewhat like a cold air, except that it is much more restrictive and the filter is in the engine bay and not in the front bumper.

3. No pressure sensor, only MAF sensor. The protruding black box looking object is only an intake silencer, it creates another path for the air to travel as it enters the piping, and therefore makes the engine sound quitier, all cars have one.

4. Yes it voids the warrente on the MAF sensor, and the dealer told me that if there is an engine problem, they half to be able to prove that the air intake that you installed caused the problem in order to for the engine problem to not be covered under warrente.

well i mean if you think about it that way, then all the short ram intakes on the market would be useless and everyone should just buy ram air. No. If the short ram is designed properly, the intake tube will extend so that the filter is located toward the front of the car where air is pushed into it. Stock airboxes are often located at random locations in the engine bay where there may be little or no airflow; however, they should have a small tube that sucks in some air from underneath the car.

so in conclusion.... a ram air or a short air intake provides the tC with better throttle repsonse and overall performance?TRUE ram air is unfiltered air being rammed into the throttle body / intake manifold for maximum performance. However, this should only be used strictly for track cars, since street driving will cause all kinds of debris to get sucked into the engine.

no, there is no such thing as a ram air for the tc. Ram air can be fabricated by using an empty headlight cut-out, a cut-out in the bumper, or any custom hole in the bumper/fender/hood and then having a duct from the hole to the TB. But as stated earlier, this should only be used on dedicated race cars.

a short ram intake (with the filter in the engine bay) will take in warm air, that will drastacly decrease engin performance.Not if it is designed / located appropriately.

a COLD air intake will place the filter outside of the engine bay, drawing in cold air that is more dense, therefore increasing power.True. However, the gains you will achieve from either a short raim or CAI on these 4cyl cars is so minimal. CAI's are so overrated. For that extra .25 - 1 hp gain over a quality short ram w/ good filter, you are trading off the convenience of having the filter in an easily accessible location for cleaning and replacement. And CAI's tend to need regular cleaning because they get so dirty from rain/dirt on the road. Definitely not worth the hassle, IMO. I always stick with a short ram or custom intake, and use a high performance filter like the Blitz SUS.

Did they Dyno a tC with completely stock? YES

Did they Dyno a tC with the short ram intake? YES

Did the short ram intake gain hp? YES

If you all notice, on the tC the air box is directed to the driverside fender, if you remove your stock airbox you will notice a port leading down into the fender and to an opening in the bottom of the bumper. This is used to direct outside (cooler air) to the air box. Esentially a cold air intake from the factory, but with small ___ rubber piping, a restrictive filter, and designed to be efficient and quiet. I guess I just dont understand why all of you are still going on about RAM AIR, COLD AIR, SHORT RAM. ??? they all make hp, some look better than others, some are more expensive than others. Im not _____in, I spent a total of $38, and I know that I gained hp from just the sound, and throttle reponse alone.

nismo? like nissan right? isnt that a little wierd

i guess its cool if they dont say nismo on them

No, they do not have any writing on them at all, and they actually look better and cleaner than the OBX pedals from the factory.

did you get any check engine light? did you reset the ecu?

Kamikazi

What intake did you use to make your custom short ram with? Is it a Camry or Corolla one? Also, how did you get the MAF into that piece?

Looks awesome man! Good work! I plan on getting the AEM when it comes out, but want to make my own short ram for the time being... I bet your car sounds awesome?!?

did you get any check engine light? did you reset the ecu?

No check engine light, and Yes I reset the ECU by disconnecting the batt for an hour.

Kamikazi

What intake did you use to make your custom short ram with? Is it a Camry or Corolla one? Also, how did you get the MAF into that piece?

Looks awesome man! Good work! I plan on getting the AEM when it comes out, but want to make my own short ram for the time being... I bet your car sounds awesome?!?

Yes, it sounds really good, I was happy about that. the intake really opened the car up. I did not use any type of intake I made it from a lot of misc. parts. The 3" piping is from Versus motorsports, they have a huge bin of piping of all shapes and sizes, and I found a couple that I could use, but they had to be cut to make the shapes that you see in the pics. Second, that MAF sensor 3" housing is from an old Nissan Frotier that I modified, to make my MAF sensor fit into it. They the filter is just a universal 3" high flow intake filter that was like $16.

Heh. Good thing people realize that paying $200 for a weapon-r is a waste of money... Intakes in general don't have that much of a gain, especially on a tC (c'mon - K&N got 6hp out of a CAI...), so cheap short ram just for cool sound and maybe a tad better throttle response makes more sense. I got an '03 Corolla intake off eBay for $26, cut the pipe, and put it instead of the stock airbox. When I get sick of the sound I put the airbox back on - takes 5 minutes (vs. close to an hour to uninstall a full CAI). Does not look like a factory thing, but it's just for fun... http://zoltiz.com/cars/tc/intake/

And the guys talking about "drastic temperature increase" with short ram vs. CAI - have you actually measured the intake air temp with both intake types? How about on a moving car? It's not "drastic", and intakes on the tC are just for show and some noise - 6hp with a CAI is not a real performance enhancement...

also since the density of the air charge is measured from absolute zero you are looking at a temp change from 360 degrees to 365 degrees so it really ain't a big deal Sure we all agree I would not put the intake right over the exhaust pipe, but CAI is more hype then reality. I'd take low restriction / smooth transitions every time.

Heh. Good thing people realize that paying $200 for a weapon-r is a waste of money... Intakes in general don't have that much of a gain, especially on a tC (c'mon - K&N got 6hp out of a CAI...), so cheap short ram just for cool sound and maybe a tad better throttle response makes more sense. I got an '03 Corolla intake off eBay for $26, cut the pipe, and put it instead of the stock airbox. When I get sick of the sound I put the airbox back on - takes 5 minutes (vs. close to an hour to uninstall a full CAI). Does not look like a factory thing, but it's just for fun... http://zoltiz.com/cars/tc/intake/

And the guys talking about "drastic temperature increase" with short ram vs. CAI - have you actually measured the intake air temp with both intake types? How about on a moving car? It's not "drastic", and intakes on the tC are just for show and some noise - 6hp with a CAI is not a real performance enhancement...

looks good zoltiz.

So where can someone pick up one of those sensor adapters???

Mine is rigged pretty poorly.

So where can someone pick up one of those sensor adapters???

Mine is rigged pretty poorly.

Can be made out of other toyota intakes - like I mentioned - eBay has plenty of cheap noname corolla intakes - MAFs are the same as in our cars.

I went with a 3" MAF out of a Frontier and modified it to house my Sensor. Works very well, you just have to take the time to do it.

im thinkin about customizing my own. what exactly is the arrow pointing to in the picture? i know they dont get disconnected, but the one connector is connected to the piping; i just dont know if its attached for security purposes or if there is anything passing through. i see that in kamikazi's intake pic, he just tied them securly. how is it connected, and what does it do? thanks for helping a newbie out.

http://saves976.250free.com/intakeQ.JPG

It's a VSV (vacuum switching valve). It is connected to a nipple on the stock intake pipe - you disconnect it or plug it up and you got yourself a CEL and possibly a nice decrease in performance. It is connected pretty securely to the stock pipe, so I did not bother zip-tieing it to anything.

It's a VSV (vacuum switching valve). It is connected to a nipple on the stock intake pipe - you disconnect it or plug it up and you got yourself a CEL and possibly a nice decrease in performance. It is connected pretty securely to the stock pipe, so I did not bother zip-tieing it to anything.

so how did kamikazi get around this with his custom intake. in his picture, it just looks like it was unplugged, and zip tied to a harness.

He probably routed the hose to a nipple further down the pipe.

All I did was push it to the side, once detached from a little rubber notch holding it on the intake pipe, it has enough hose to move it around into a different location.

All I did was push it to the side, once detached from a little rubber notch holding it on the intake pipe, it has enough hose to move it around into a different location.

but zoltiz stated that disconnecting it from the stock pipe might throw a CEL. you just disconnected it from the stock pipe?

Hey, go out and pop your hood and look closely at it, it doesnt have anything to do with the intake pipe, it's there because that was Toyota's convienant location to mount it. you can get it off with one hand, there is only a rubber piece holding it there, you dont disconnect anything, just pull it out of the rubber piece and your done, just dont disconnect any of the hoses going to it, but none of them go to the intake, so I dont know what your worried about.

yeah thats what i thought, but i saw that it was fastened by a rubber/plastic clip type thing. i didnt think it actually went to anything. but it never hurts to ask. thanks.

hey, no problem at all

just to add to the discussion.. why not just "DROP IN" a performance filter.. such as the TRD or K&N filter ... you get less retriction and you get the cooler air from the outside..

yes i know all the arguments for smoother transitions and all.. but here is an argument that i have posted on other sites when this comes up..

:eyebrow: has anyone checked to see what the engines breaths.. in CFM.. and "actually" see what the flow is on the the factory box with a performance filter.. putting in a 4" pipe.. with a filter that can breath 3000cfm of air may do nothing for you if the engine at it's best can only take in 300 to 400 cfm.. PLUS.. you have the MAF.. again.. putting in somthing that can breath 3000cfm.. and the MAF is where your restriction is , again you dropped $$$ for nothing.. everyone assumes that factory aribox is a source of restriction... but most do nto consider the filter.. or the MAF...

^^^ This is a great questions for those who dropped $180-280 on Weapon-R short ram and the likes...

I did my "custom" short ram just for the heck of it - I'm driving around with the stock airbox/trd drop-in right now. Every once in a while when I feel like making a growl, I swap in the cone filter (takes 5 minutes anyway), and give it a whirl.

I spent $38, that is cheaper than a K&N filter. and when your ECU see's more air flow, it will start to increase the fuel to compensate.

kamikazi.. i totally agree with your statement.. however.. your assumption is that the ECU 'is" seeing more air.. the amount of air that the engine is breathing is coming from the MAF.. and if we go on the assumption that the MAF is the restrictor.. then you ECU will never see a reading of "more" air.. .."WE" are all going under "assumptions" with no hard proof of anything... and to spend ANY money or to modify anything under an assumption is not a very sound idea...

there are 3 posible sources of restriction .... and i do mean "possible' lets start closest to the engine..

1: throttle body.. it's been my expirience that 99% off all throttle bodies can be bored out alittle.. this WILL give you some inprovement in flow ..and assuming the engine can use the extra flow...

2: MAF.. i have not seen the MAF in the TC , "yet".. im still waiting for mine :tap: but im not williing to discount this as a possible restriction.

3: the airbox.. i have not seen anything in any posting that shows that the airbox w/performance filter is a source of restriction..

notice i left out the piping.. i did that intentionally.. most factory piping, plastic or otherwise is usually larger than the bore of the throttle body.. the smallest area of the throttle body bore is usually in the area of the throttle plate... with this we can assume that the piping is not a restrition point.

here is another thought... i have seen pictures of the TRD SC..kit and none have shown the kit including a different airbox.. leading me to believe that the airbox is good enough even for an SC... the only thing i expect to see witht he kit is a TRD performance drop in filter..

Point blank, an intake is a choice, you either slap one on, or you dont, there is dyno proven results on the tC of a short ram and a cold air making hp. if I spent $38 bucks and got 4 hp or so, a little better throttle response, and a nice sound, then all the better or me. Im not trying to gain 400 hp out of my tC, I can buy another car for that purpose.

The manufacturer will never install a cone style intake filter from the factory, even if it is supercharged, they are going for economy and reliability. The tC will have 205 stated hp at the flywheel. That supercharger is made by Vortech for TRD and is the same exact charger used on the 99-00 civic's in which they also have 160 stock hp. With some relatively inexpensive mods that supercharger makes 250 hp to the wheels in the civic.

I believe the whole air box is taken out when the TRD SuperCharge is installed?? Is that right :doh:

It doesnt come out until like April. But im pretty sure that it will retain the stock one, or will come with a replaement.

NOW!! we are talking.. if there are 'dyno' tests to show the improvement then we speak in facts.. :eyebrow:

i was not trying to pick on you kamikazi... just trying to have a informative discourse..


i agree , the fatory would never put in a cone filter.. but at the same time.. i don;t think they are going to choke the engine on purpose. if reliablity is soly dependant on restricting the breathing of the engine.. then i feel sorry for all of us.. and choking the engine also negates economy..

Now.. on the other hand.. they may be looking to give the aftermarket an oppertunity for add-on....

don;t get me wrong.. i understand that engine performance is not optimal from the factory.. there is plenty of room for emprovement im sure.. and i will also agree with you that ANY add-on is a choice.. you do it if it makes you happy.. you don't if it doesn't..

... 6hp with a CAI is not a real performance enhancement...

IMO 6hp is not much of an increase (the TRD exhaust does this) BUT 6whp (which is what the K&N provides) is another thing which pretty significant.

TRD supercharger
$4000 / 40whp = $100/whp = expensive!

K&N CAI
$250 / 6whp = ~$42/whp = worth it!

6whp is a little more than just a growl and if they made a high-perf MAF to use with it, it would most likely produce more. For those who don't plan to go FI, $250 is a small investment in a good start.

www.nexusindustry.com Built up a tC and intalled an intake, header, exhaust, and a 60mm throttle body and gained 24 hp and 19 tq to the wheels. Go to the website above and then click on Dyno's, then you will see the tC along with others listed.

Scionspeed Turbo kit
$4000-$6000 / 100-300 hp = $40-$20/whp = even better

That Scionspeed kit is the ____. When my car is closer to being paid off, I'll definitely have to consider it, hopefully by then, there's a better selection of internals :D.

Ya, I wouldnt be like them and run 14 lbs and 350 hp on stock internals. But the 2AZ took the beating and it's still running. Thing runs like mid 12's.

Yeah the Jotech tC is running something like 30lbs :shock: of course with aftermarket internals. Amazing what our 2.4L's are capable of. There's a demon under the hood just waiting to be released :D.