Another thing about the lack of response even off boost- The YB engine is in a car about 400kg lighter than the other engine I mentioned, so it's not even a weight thing.
I'm fairly convinced it's the L6 and heavy flywheel, but I'd like others opinions still.
Originally Posted by
JamesH
Removing the centre box makes a difference
The car is running 3in straight thru pipe from turbo back, no boxes.