Iv recently fitted a new engine and turbo into my 4x4 sapphire cosworth.

It was a running dark greens T3 and 24psi of boost before the change.

Iv now fitted low comp engine, with BD14 cams, T34 with .63 housing and converted to 2wd exhaust manifold.

The problem im now having is i cant get it to boost properly and only does 15psi max at high revs.

I have swapped actuators and adjusted them, disconnected amal valve, checked for air leaks.

Any one have any idea what it could be????





john