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Thread: George Rupert Carb question

  1. #1

    George Rupert Carb question

    I just purchased a turn key dragster that is running an George Rupert Carb on a 598. My question is the jetting the same as a gas carb? Reason I ask is that I know that if I was going from a track that is 2600 ft corrected to a track that is 4400 ft, I'd drop the jet sizes two sizes with a gas carb. The carb currently has 172's and the difference in track elevation between what it used to run at and my track is approx 2000' but our humitity is probably 10- 15% higher. Just leave it and run her or drop one or two sizes?????

  2. #2
    Senior Member DYNO OPERATOR
    Join Date
    Aug 2005
    Location
    Rifle Colorado
    Posts
    585
    I don't run alcohol and never have with a carb, but I know a guy who has a Rupert carb on his dragster. He asked the same question and George told him "don't touch it".......I'm sure others here can tell you how far to lean it.

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    May 2003
    Location
    Coldwater, MI
    Posts
    2,998
    Id leave it also should be good
    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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