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Thread: Throttle stop

  1. #1
    Senior Member MASTER BUILDER
    Join Date
    Sep 2008
    Location
    Red Deer, AB Canada
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    213

    Throttle stop

    I was talking to an engine builder the other day and he gave me some advice I thought was interesting. He claimed that if you only intend to bracket race, you should remove the trottle stop from your engine.
    He claimed that they had BBC on the dyno a few years ago and it was stumbling a bit and not reaching the numbers they thought it should on the dyno pulls. They removed the throttle stop completely, the stumble dissappeared and the HP came up (he didn't say exactly how much - just higher). Has anyone else experienced this?

  2. #2
    Senior Member EXPERT BUILDER
    Join Date
    Aug 2007
    Location
    Orient, OH
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    384
    The under the carb style stop is usually slows you down about a tenth. I pull mine off after our Points season ends for brackets.
    Josh VanHorne

    1964 Chevy Nova
    Worlds quickest and fastest tow truck. (9.92 @ 137)

    http://static.racingjunk.com/63/ui/7...247837-479.jpg

    http://www.racingjunk.com/profile/211708

  3. #3
    Senior Member MASTER BUILDER
    Join Date
    Sep 2008
    Location
    Red Deer, AB Canada
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    213
    Josh,
    Did you replace the throttle stop with a spacer of the same height?

  4. #4
    Senior Member RACING JUNKIE
    Join Date
    May 2003
    Location
    Coldwater, MI
    Posts
    2,998
    Its usually worth 2-3 on a typical 1000hp motor when taking them off. APD/Sunset makes one now that is faster
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com


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