The 2011 103" motor is rated at 102 peak ft. lbs. @ 3500 rpm.

Does anyone know the hp rating/spec's?

 

Cant answer your question, but you will find that rating is taken from the crank, and not a true indication of actual rear wheel power you find others talking about after doing dyno work. The at crank ratings are always higher than what actually goes to the ground.

 

Not very much!

 

I didn't consider that. . . you're right. Factoring in the drive train loss, it's probably in the 87/90 ft lbs range.

Thanks

 

This chart from Fuel Moto compares a totally stock 103 vs. with their headpipe, muffs, A/C, PC-V & Woods 6-6 cams. 69.38HP / 87.55TQ @ rear wheel stock

http://fuelmotousa.com/limitedstkvswoodtw6.jpg

 

Guess that with air cleaner and pipes you can get about 10 HP (+/-) over stock. That'll be your first and least expensive performance gain.

MK

 

Thank you!

That's a substantial increase in hp/tq without headwork.