Originally Posted by
kiwikermit
What is the Most boost you should run on a T3 in a Sapphire? Mine was running 17-18 PSI but i have just fitted a new cold side BOV and the boost has come up to 21-22 PSI. Is this okay or is this pushing it a bit far?
If the car is mapped correctly for it, you can run over 30psi on a T3 on a YB without a problem, but it will only do so in the midrange, it simply cant flow enough air to maintain that pressure once the engine is revving as it consumes the air quicker than the turbo can supply it at 30psi