Originally Posted by Escy
just noticed, the manifold has a long hairline crack in the middle, on the bit that seperates the exhaust gases into 2 banks as they enter the turbo. its exactly in the middle of it, and goes along as far as i can see, must me a couple of inches. could this be the reason for the noise?
all 4x4 cosworth have cracks... never seen one without them ..
it sounds like turbo surge.. your engine cant consume the air the turbo is producing for your engine..
did you have it remapped ?
what are you driving ?