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Old 11-27-2012, 10:48 PM   #71609
Beastly Adventurer
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Joined: Feb 2006
Oddometer: 2,845
Originally Posted by Rex Nemo View Post

When I ran my stock-exhaust, mildly-jetted old DR, it got a whopping 32 hp at the rear wheel. With the FMF, it topped out at 35.15; the 'Busa pipe was ever so slightly less at the top end, with 34.82 hp. The surprise, for me, was the rather improved low-end torque with the 'Busa pipe. It's slightly less torquey than the FMF at 6-7k rpm, but has notably more oomph pulling away from lights, up hills, and is, ahem, easier to wheelie.

Bike has a stage 2 Dynojet kit with a stock 40 pilot jet, 150 DJ main jet, needle on 4th clip, Twinair filter, and Jesse's cut airbox. Header is stock.
There's something wrong with the data in the chart, as the O2 can't really be 20-22.5% (ambient is roughly 20.95%). CO2 is also way too low. A good running engine should have upwards of 10%.


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