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Thread: Dyno time.
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Old 05-15-2008   #1 (permalink)
johnny6035
Senior Member
250 Grand Prix
 
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Join Date: Jul 2007
Location: North of England
Posts: 117
Dyno time.

Just had my bike on the dyno this morning. Stock 04 Thrux engine with Mototwin sweep backs, FCR39s and K&Ns. Fuelling was perfect and whupped an EFi Thrux he'd done just the other day. A minor hiccup just off a closed throttle (annoying round town) was sorted with another 3/8 turns on the mixture screws. Boy, do those Keihins come out of the box well set up!

Can't post the graphs as my scanner is goosed but the results were

Power 66bhp with a spike at 73.

Torque 54.3 lbft

Geared for 135mph at 7500rpm with a 19t front sprocket - real world top speed with wind resistance is around 125mph - speedo reading 112!!!

Now then, I wonder when I can get round to buying 790 cams and a big bore.
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