Yoshimura GSX-R1000RR makes 176bhp at back wheel

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According to an independent dyno test conducted by Cycle World, the Yoshimura GSX-R1000RR that we scooped last month makes 176bhp at the back wheel. By our reckoning and assuming a 15% driveline loss, that puts it in the 202-208hp range at the crank. Considering the stock 2009 Suzuki GSX-R1000 is supposed to make in the ballpark of 185-191hp at the crank, that’s a healthy increase. How does it make that extra power?
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Yoshimura has equipped the RR — a prototype for a turnkey AMA American
Superbike
racer — with high lift and long duration cams, raised the
compression ratio from 12.8 to 13.8:1, fitted a BMC air filter, a new
ECU mapped for pump gas and a full titanium and carbon exhaust system.

Compared to full system dyno runs we’ve seen elsewhere — it should be
noted that comparing rear wheel horsepower results dyno-to-dyno isn’t
terribly accurate due to variables in conditions and equipment –the RR
is making about 14bhp more at the wheel thanks to the additional engine
work.

Of course, that’s not the end of the story for the RR. For the full
list of modifications Yoshimura has made to put it in race spec, check
out our original Yoshimura GSX-R1000RR article.

via @CycleWorld

  • http://dangerismymiddlename.com Paul Danger Kile

    :-) I am hoping that the manufacturers begin selling AMA American Superbikes. Here’s what I expect: the new DMG rules were meant to keep Superbikes closer-to-stock, so the best way for the manufactures to up-the-ante is to sell stock racers! That’s not cheating the system: not if they produce enough “homolagation specials” that all riders can buy one. Ducati does this. Everyone else should too.

  • Scott

    176 rwhp…. zzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
    come on Pops, you can do better

    send your GSXR to KWS & use the money left over to buy Wes’s motorcycle perfume

  • El-Diablo

    LMFAO at Suzuki for making this their best bike.