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Thread: Whats the STock Horse power for a 400ex

  1. 03-11-2002, 08:51 PM #1
    OutlawEX's Avatar
    OutlawEX
    OutlawEX is offline The Fear within
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    Whats the STock Horse power for a 400ex

    I was just wondering what the stock HP is for a 400ex..My friend said its 25 Hp but im iffy on that..Let me know if u know???
    Bjonesta@aol.com
    My YFZ400EX project UP DATED 7/27/03.
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  2. 03-11-2002, 08:56 PM #2
    400exRacerX's Avatar
    400exRacerX
    400exRacerX is offline Sick Style ATV Racing
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    Its been anywere from 26-28hp in mags and on the net on dyno charts.
    #71
    2000 Roll/Laeger's/Houser/Axis 416ex

    2001 Arens/Laeger's/PEP 250r

    Thanks to my sponsors for 2003 : 00-Buck ATV Racing, Team Pompton, Nebulae Race Team, Milton Inn Packaged Goods, Napa Auto Parts of Oak Ridge, Sick Style Racing, WD-40, Hinson Racing, IMS, Sport Center Racing, and Nac's racing

    I'd also like to give a special thanks to Baldwin Motorsports for all there help and support they gave me.

    We are now accepting resumes, this is a New Jersey based team. westsyder50@hotmail.com
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    Team Rcokford Fosgate 401+ northeast champ 147.7db
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  3. 03-12-2002, 10:12 AM #3
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    OutlawEX
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    DO you know the site where i can find all the specs about Horse power on other quads and stuff????
    My YFZ400EX project UP DATED 7/27/03.
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  4. 03-12-2002, 10:43 AM #4
    VegasEx'r's Avatar
    VegasEx'r
    VegasEx'r is offline aka sandnut
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    Try GT Thunder. Click on the test bench link. There are quite a few dyno comparisons there, including some stock 400's
    03 Predator w/ TrailTech X-bars & clamp, WB slip-on, custom K&N intake, Edelbrock carb

    06 Raptor, Houser +2 A-arms, LSR +4 axle, FMF PowerBomb Header w/ Two Bros slip on, ProDesign K&N intake kit, TrailTech X-bars, clamp & Vapor computer, PC III USB
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