how much boost can you push into standard 1.6 cvh turbo SAFELY ? is it about 18psi

 

Without any form of fuel mods?

No more than standard mate.

 

stu ive been running the set up that mark shead done for my 225 chip he done a couple of fuel mods ive got the grs cooler stg3 head plus other stuff, but my piston skirts have pushed in, i think they were cheap new ones they were +.5 and i had 1.5 mm skimmed off of the top . i was running about 20/22psi on boost, now i want to put in a standard block and pistons will it be safe to run about 18 psi .

cheers

 

Standard engine with out any care and attention to the bottom end build
I would only run 15 pi

Cheers

Steve

 

1.5mm is too much of the piston. Boost is irrelevant, it's the power ur engine is producing.