Ahhh OK. There is your problem you need a dual angle.
gabbett1
Member
Really? Why is that? I do know that the old setup (when it was an 800) was a straight helix. I guess I just don't know much about the helix and how to determine when you need a dual angle.
Also, just for clarity, when I said I wasn't reaching peak RPM it wasn't that there was bog or anything. The engine sounded great and it hit the RPM and held it. I just thought my weights were off. I haven't adjusted the primary since I discovered I had the wrong belt.
Straight angles are great for big high torque twin cylinders with a super wide flat power curve to clutch.
A piped high rpm triple has a narrow hard to clutch power band. So to keep it on the pipe at 9000 rpm you have to slow the upshift down (not so aggressive up top). The dual angle does just that. 51-49 will give you same characteristics down low but help hold the 9000 rpm up on top end.
A piped high rpm triple has a narrow hard to clutch power band. So to keep it on the pipe at 9000 rpm you have to slow the upshift down (not so aggressive up top). The dual angle does just that. 51-49 will give you same characteristics down low but help hold the 9000 rpm up on top end.