Thread: Intercooler on a stock gtp ?

Originally Posted by moddman

but are your boost levels ok?

Boost gauge shows 10.5 lbs.
As far as vacuum leaks I fixed those last year damn tee under supercharger snout was deterioated but I ran like that for about 3 months not realizing it was bad. Maybe something reacted to that period of time ie. high fuel pressure, low map vacuum, due to the vacuum source not being there. I also did the intake gaskets and changed them to the updated aluminum type, so I know I'm covered there.

One thing though that as soon I got the LIM gaskets out in,the car was immediately crazy fast then after about two months it became slow when hot has stayed like that up to now. The only thing that I changed at that time was the injectors with stock flow-matched zzp reman'd injectors. Dont know if one is leaking or not flowing right but I had the car retuned/tweaked to take care of the KR which is now gone. So I dont know maybe the reman'd injectors went sour, but I have no codes just slowness when hot. It has to be either the tune or I need an intercooler to cool it done some to get the benefit out of the retune.

that does sound kinda weird. it really seems like your getting just a little bit of knock. from what i've read, most people's boost level stays around 7-8 pounds and it shouldn't get higher if the mods support the pulley drop. i wouldn't go with an intercooler yet unless you can afford it lol. when you got it tuned, did you have all of your supporting mods? like if you didn't have the plugs or thermo then, it might not have been tuned for it and not working right.