ok.. heres the setup i want to run. intake, full exhaust, 2.8 inch pulley on 42lbs injectors. 75 shot wet kit, a snow perfomance meth kit and the gm stage 3 tune. i know first off that the injectors are gonna be an issue.. but what if i lower boost by either a boost controller or pulley to make things a little safer. or is the meth gonna give me enough of a safty barrier where i can run that much boost? i don't race often and i don't beat on my car. so it won't be seeing high rpms very often.

 

GM stage 3 tune...Why if your running nitrous AND a meth kit? Run one or the other, and get it custom tuned.

 

I would think you would be able to compensate with the meth and the nitrous, but better safe then sorry. i would strongly suggest looking into cooling mods other than meth.

 

IDK that Meth is going to do what you want. Really it should be tuned into the car. W/ stage 3 you can't tune it. I don't think it will compensate for the nitrous. The only thing I can imagine is that you could run in Race gas mode w/o race gas with the meth instead. The added timing that the race gas would allow will be around wart you could gain w/ meth. I really think your going to have to ditch that GM tune.

 

Seems that you want to upgrade too much things in the same time, that would not be easy to tune. Go one by one and watch the Injector Duty Cycle. And the GM Stage 3 kit is condigured for a Dry nitrous shot, not a wet one. Stage 3 remove the AC too.

The wet shot is a better option. Forget about the GM stage 3. If you could run a 2.9 pulley it would be better with 42# injectors. And with the methanol you should run a bit richer.

 

i think i wrote everything wrong.. i allready have the gm stage 3 pcm and a 2.8 inch pulley. the nitrous setup is allready on the car. i just haven't used it yet. i only have a catback exhaust and was looking into a header and dp and a meth kit on top of everything. if i would be better off getting 60lbs injectors and a tune for the nitrous i'll do that.

 

Since its a wet kit I don't think that the injectors will matter. Spray and pray buddy!!! I would def look for some headers and catless DP pref 3 in for your application for max power.

I still don't think that the meth will make a difference when the nitrous is going.

 

thats true.. maybe i'll just finish my exhaust.. and see how the car runs on nitrouis and go from there.

 

Those 42.5 injectors shouldn't be a problem with a 2.8. I know a mechanic and most of his work is done on these cars. He was running a 2.7 on 42 lb injectors I believe. But was having belt slip so went up to a 2.9 and now his car is faster than people running stage 3 set ups or even more.