25 years of sportbike development

[karl_1052]

Originally Posted by TIGGER

I'm not sure you're right there, NW. I'm sure that my bike has more torque than yours. Although I do agree that torque has hit a wall since my 1997 YZF1000 had about the same torque numbers as my 2006 GSXR1000 does. For some reason, and it may be on purpose,torque has hovered around 80 ft/lbs in the liter class. It may be that tires aren't good enough for much more than that... You have to remember that whenever the OEMs have produced an engine that was "better" than the corresponding brakes, suspension and tires pandemonium has followed!!!

Torque is a function of engine capacity and engine efficiency. The only way to increase torque is to increase engine size.

HP is a function of torque at a specific rpm. Raise the RPM capacity and the HP goes up, but torque will always be the same.

My bike makes 80lb-ft from about 3000 rpm to over 10000rpm, with a peak of just over 100lb-ft at around 8000rpm. All due to the long stroke motor with an additional 340cc over a liter.