Originally Posted by bonnevillemac
On the kits that claim they are rated safe for fuel injected engines, I know you should upgrade pistons and other components but is it a must??
Some kits claim they can safely add 50-75 hp without any major modifications. Is there any truth to this at all??
If the kit isnt installed right and you predetonate hard, It matters little what pistons are in place. ZEX and Holley (NOS) both agree you can go up to 100-125Hp shot without modifications other than proper plugs and timing retarded
Chadow, on real "kits" engineered specifically for your application, the orifice holes are different sized. A 4 banger kit will have different orifices than a V8 Kit. The generic cheapy "fit all" kits are the ones that increase the danger of predetonation.
Many of you are actually interested in Nitrous and both NOS and ZEX have excellent websites with a vast database of knowledge. Stop relying on heresay and "BillyJoeBob put one on and blew holes through his pistons and the manifold went through the roof". I have used nitrous since '76 . The GXP is the 3rd one and after 8 bottles of NOX in my GXP with a 75 Hp shot I've had no problems 'cept for toasty spark plugs that I wasnt suppose to use in the first place
No engine mods are "safe". They require carefull forethought and research and follow through. I myself dont believe putting a smaller pulley on a used */C and running it near or cough Will cough
above the threshold of a new one is safe either
But you have to make a decision balancing how fast you want to go vs how fast your engine wears.
SPEED COSTS MONEY~HOW FAST DO YA WANNA SPEND IT