I have a stage3 4x4 cossie at the min, i think it has standard compression ratio.
Can i run T34 with 0.48 houseing, greys and 30 psi with these pistons or do i have to have low compression ones.
i will be fitting cometic head gasket or multilayer.



John.

 

upski




John.

 

the exhaust housing is the most restrictive item that will stop u doing that m8

 

What boost can i run then with a 0.48 housing?




John.

 

prob about 26ish

 

So if i had a 0.63 housing i could run 30 psi even though i have standard pistons?

If so how long are they going to last?




John.

 

yes and should be fine for ages if mapped correctly my .63 t34 peaks at 35psi

 

So why the need for low comp pistons then??




John.

 

for bigger turbos etc i wouldnt go low comp

 

RS GUS can you pm me your engine spec please??



John.

 

I thought you needed to lower compression because of the high boost levels.



John.