Hi I am trying to find out how much boost I should safely be able to run my car at if any one has a very good idea. I have a 95 Z28 with a 5.7L bored to a 355 with speedro forged dished pistons for a compression ratio of 9:1, stock crank magnafluxed and polished, stock rods shop peened and modified for floating wrist pin. The fuel system is upgraded to 65 lbs/hr injectors, walbro 255 in tank pump, msd fuel pump booster. Exhaust is hooker long tube headers with free flowing 4" exhaust. The blower is a ati procharger p1sc centrefugal supercharger with custom plumbing with blow through mass air sensor, custom intercooler, and greddy "r" bypass valve.
Any help would be appreciated. Thanks.

 

any help....

 

the internal work youve done will have deffinatley uped you compression so its gonna reduce the amount of boost you can run i doubt youll be able to run more than about 4-5 lbs withoutgoing back through and forgeing internals

 

I have lowered my compression ratio not raised it. correct me if im wrong but the stock LT1's run on about 10.5:1 compression and as far as I know they can take around 5lbs. I have forged pistons which lowered it to 9:1 meaning it should be able to take more boost then before, I am currently running 8lbs with no problems at all. So im just curious if there is any guys with more knowledge about forced induction to see if I could go with higher boost then this without breaking connecting rods, blowing head gaskets ect...

Aswell as down the road how much boost I could top out at and what all I would have to do with the internals inorder to run alot higher boost.......20lbs ect..

 

with 9-1 you should prolly be able to run 12lbs or so safely.

 

what would I have to do inorder to run higher boost?

 

all forged internals.