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103" Power Pack Spec's

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Old Dec 20, 2010 | 08:39 AM
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Default 103" Power Pack Spec's
The 2011 103" motor is rated at 102 peak ft. lbs. @ 3500 rpm.

Does anyone know the hp rating/spec's?
 
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Old Dec 20, 2010 | 08:59 AM
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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.
 
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Old Dec 20, 2010 | 09:15 AM
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Not very much!
 
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Old Dec 20, 2010 | 10:12 AM
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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
 
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Old Dec 20, 2010 | 11:50 AM
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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
 
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Old Dec 20, 2010 | 12:56 PM
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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
 
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Old Dec 20, 2010 | 03:41 PM
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Thank you!

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