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I have a 99 firebird formula, and recently bought a d-1sc serpentine kit, 42 lb fuel injectors, and a holley fuel pump. Everything is stock on my car, just wondering how much boost i could run on it, what compression ratio is best and how to go about getting it there

Flaminchiten67

Might want to try the Forced Induction forum.

jrp

iTrader: (16)

well stock CR is 10.1, if you plan for different heads or ristons you can make it whatever you want.

777

iTrader: (21)

you are limited on boost...once you get rods and pistons though you can run 1000hp...the stock crank seems to work quite well...at least for harlan

zamboxl

iTrader: (1)

ok well stock don't run any more than like 4-5 psi, as far as compression goes if you want you could do 11.1 plenty of plp are doing it so should be fine

777

iTrader: (21)

idealy you would want anywhere from 8.5-9:1 cr that way you can run high boost

BlueSix

I'm going to go against the grain and say you can safely go 8 lbs of boost at the factory compression level. Just make sure you get a good tune and run good gas. Bolt on a set of 6.0 heads and you can run even more.

jrp

iTrader: (16)

theres no doubt you can, the question is for how long?

BlueSix

With a good tune and high quality 93 octane gas i bet it would a while. It wouldn't be the kind of combination you could beat on all the time. Some on this site have proven the stock bottom end can handle a lot of stress if the tune is right. 01-Z is an excellent example of this.