forget the car running lean...cuz i think thats wrong...ive talked to the manager at toyota as well as two shops and they said it will not be that dramatic but basically i have an aem cai...will it work with the s/c or do i need to mod it or what

 

you need to get it tuned with some kind of piggyback ecu to add fuel or else you run the risk of being too lean and detonating the engine.

the choice of the risks is up to you.

 

If you're on stock pulley you should be fine... The only intake that I've seen tested is the MMW, it was a bit lean but ok. If you have any kind of extensive mods other than just s/c itself, get a tune.

 

all i got besides that is the dc headers and axelback exhaust so i should be cool right

 

o and also....do i get any performance gain from the cai?

 

You should be ok with it, but best bet would be to get it tuned to take advantage of the parts you have. I'm assuming you have a 05-06 tC, correct?

 

yes, the cai will be less restrictive and pull in cooler denser air from outside the engine compartment, same as when it was not supercharged.

 

k thanks for answering all my questions guys..helped alot...now im just gonna give em my stock airbox...if they cant use the aem ill just have em put the stock one on...i wont lose that much hp by taking the cai off and putting the stock back on will i?

 

for the amount of gains you'll get in the CAI compared to the stock airbox is it really worth taking the risk? i'd say stick with stock or like everyone says, you need to get it tuned. i believe that the guys here on SL know more than the managers / techs at toyota!

 

two weeks ago My friend and I was testing the rumors out about adding an intake with just the TRD reflash ecu running lean. we had our cars on the dynojet dyno. the A/F was around 11s-12s in Boost. not in boost the a/f was around 14.7

 

I thought the CAI had to be modified to fit with the SC?
And the manager and shop said you don't need a tune, but they could not tell you if you need to mod it to fit?

 

well one of the shop owners gave me an example by sayin he put a jackson supercharger on a gsr a while back that had a cai and it didnt run lean

 

Oh...yeah...well that is exactly the same then, isn't it
j/k!

but if cess said they dynoed with the SC and stock air box, then dynoed with teh SC and CAI, and the AFR were in the 11-12, that's good enough for me.

Did you reset the ECU before hand? And how long was the CAI on before you ran it on the dyno. Oh, and since it was a dyno...was there an increase in whp?

 

if ur gonna put an AEM CAI ..in the S/C....let me warn you that....you're gonna have to cut the pipe before the MAF.....

 

I tried the MMW intake on my supercharger... at WOT, it worked great. Normal driving caused an extremely lean condition which caused my car to run like total crap. I let a friend try it and it seems to work ok for him.

 

the trick is to have it the correct size at the MAF. If the tube is too large the MAF will read wrong and put the car in limp mode. If the pipe diameter matches and the air flow is correct then there should be zero issues. That said most intakes are 2.5 or 3 inches and the stock S/C pipe is like 2.75 or something odd like that so getting it to work right is a little tough since the air flow/pipe size at the MAF will be incorrect. I believe the injen cai will work when cut to fit because it tapers down where the MAF connects.

 

yea...im getting it back from the shop wednesday...hopefully all is well