Can somebody please tell me what this shows? I'm talking about the torque peaking then dropping off very quick.
I've been told it may be down to my exhaust not being a big enough bore thus it can;t flow any more gasses...is this right? any thoughts from anyone.

Red line is torque
Pink Line is Boost
Blue Line is BHP @ Fly wheel
Green is BHP @ Wheels

<img src=http://img11.photobucket.com/albums/v35/bcracknell/forum%20pics/bcracknellgraph.jpg>