will a holden 5 litre take 11 PSI boost at 10:1 compression ?

[huntsman482]

Can someone please tell me if a holden 5 litre 304 out of a VS take 11 PSI boost at 10:1 compression or will the supercharger do damage , or get damaged , thanx in advance

 

[AirStrike]

It's really not that simple to say yes or no, too many variables. Sit down and discus it with your tuner.

 

[huntsman482]

i was inquiring about this for my son actually as he is a diesel mechanic by trade & his head is telling him it will do damage if he runs 10:1 compression ratio , as the standard ration is normally 8:1 ratio , but he was wondering if someone has already tried this with success , or if it resulted in failure ,, , but thanks for the response though

 

[Pollushon]

It's really not that simple to say yes or no, too many variables. Sit down and discus it with your tuner.

This. It will also come down to what sort of blower, CD screw or centrifugal.

 

[huntsman482]

the blower that is on the vehicle is a centrifugal

 

[Pollushon]

I know of a Vortech running 15 psi on a 304 @ 9.5:1, so I'd say it's doable.

 

[AirStrike]

Depends on the fuel used, cam specs, head setup, etc, etc, etc.
Speak to the tuner.

 

[mr j-man]

you can run a cometic head gasket just to get it lower if the 10:1 is borderline...running the cometic should take it to 9.8:1

 

[shaun001]

what fuel is he running it on?

 

[mr j-man]

what fuel is he running it on?

probably just 98,,,id be surprised if its e85