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XR650R Dyno Run

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17K views 18 replies 12 participants last post by  slickwill  
#1 ·
From last weekend. 70 degrees, 18% humidity, 958 feet. 91 octane pump gas.

Just for reference in case anyone was wondering what they could expect out of an XR650R with HRC kit, Vortex CDI, and full ProCircuit exhaust. The engine was built by Precision Concepts. Stock carb, I could probably get a little more power by running a FCR or Edelbrock but it is running very well right now so I don't see any reason to mess with it.
 

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#6 ·
I'm running the 11:1 HRC piston. The bike was Johnny Cambells BITD bike and was tuned and run on VP race fuel then. Around here 91 octane is the best I can get at the pump and I can't afford to be running VP full time.

I'm going to put mine on one within the next two weeks as well just to get a look at the a/f graph and make sure my tm40 is completely sorted.

There is one next to my house that charges - 4 runs@1hour labor $80. Not sure if that is high or normal really.
My local dyno is 4 runs for $30. Last weekend they had a special so it was 4 runs for $20.

The other local shops are all basically the same price. I'd never pay $80 just to get 4 runs. It takes less than 10 minutes.
 
#19 ·
Yeah, I'm pretty happy with those numbers. Right the next money that gets spent on the bike will be upgrading the brakes. It goes better than it stops.

Down the road if I have some extra money I might mess around with an FCR set-up and search for the last couple HP.