with just a exhaust, Fujita CAI, and stage 2 im boosting 18psi in about 40 degree weather...is it boosting to high...or is my car loving the cold?

 

you can never be boosting too high lol

 

well ive seen people saying they are only gettin 15psi..so im like wtf

 

Its the cold.

 

im gettin 17 with a Stage 3 Pulley.

 

SEE!!!! and hes in texas...so basically same weather

 

i was gettin 25psi on my 2.8 in 15 degress weather..but i had a clogged cat

 

if i get a 2.9...would i need bigger injectors and a tune??? or would the stage 2 tune work?

 

stg 2 with the 2.9 is an awesome combo but if you want to seriously make power a 2.8 with a tune and the gm injectors would be nasty

 

well i wanna try and do the 2.9 without my parents knowing....HEHE...but seriously..so if i got a 2.8 i would jhave to go 2 dallas to tune it...and thats quite obvious to my parents...(they dont want my car faster)

 

temp and air density will affect what your boost gauge reads.. that plus its not accurate

 

then just get the 2.9 from nate

 

temperature wont add 3psi over what it should be

you have a problem.

the two most common are:
Clogged cat
Innaccurate boost gauge.

if you are truely boosting 18psi, on 42lb injectors, you are heading for trouble.

 

i have a spare 2.85 painted to look like the stg 2 pulley in the bst froums

 

well ****....thats not good..how would i get my cat looked at?

 

i think its the gauge

unbolt it, then look at it

 

I would find a local ss/sc to beg to borrow his stock boost gauge to test that first.

 

lol...my friend might but i doubt it

 

Im assuming you dont have an interceptor right?

btw, for the moment i would suggest avoiding WOT runs until you get it sorted out...
your boost levels are the equivalent of a 2.6 pully on stage 2 injectors and tune.....

 

nope dont got a interceptor.....alright ill try and get the cat looked at tomorrow

well it doesnt go to 18psi right away....it goes to 18 around 6k RPM

 

yeah i was only hitting 17 making out with a 2.9 on stage 2 kit and tune

 

Could possibly be a bad intercooler pump

 

I can understand what venom is saying. I has a ls body and since the weather has been colder lately my is more responsive in the throttle when i push on the gas. Since it has been in the 30-40 lately. I think its more of the weather than anything else. I know we were having 20-30 mph winds on saturday.

 

this could be tru too...i put a 2.85 on mine with NO intercooler, and WOT was getting 18 psi, and at one time i was hitting over 20psi near the top of 4th gear.

I have an interceptor, and with K&N intake, S2, 2.85, and 38* this morning i managed 17.5 at the top of 3rd gear. any other time all I see is 15.5-16.5 at most. my stock boost gauge was lying to me too, because before i got the Interceptor it was saying 17.5 all the time.

 

I think its the cold weather honeslty. I was going 85mph in 3rd at 6k rpms and I normally have to shift at 80 mph before redline. Just wait till the cold front passes threw.