Stock CV44 vs Yost Kit CV44

Discussion in 'Engine, Fuel and Exhaust' started by dolt, Nov 10, 2014.

  1. dolt

    dolt Senior Member Contributor

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    A few weeks back I promised to post the performance results of comparing a Yost kitted CV44 with a stock CV44 in my all bore 107" motor. I did that this weekend and the dyno results are posted below. The top sheet is the stock CV44 and the lower sheet is the Yost kitted CV44; same carb just different innards.

    The run conditions are similar; 67* vs 70* ambient; 25.7Hg vs 28.7Hg and 70% humidity vs 32% humidity. The only change to the motor was replacing the Yost emulsion tube and needle with the emulsion tube and L needle that comes stock in the SE CV44. The dyno was the same stingy dyno for both runs. I think the results speak for themselves.

    [​IMG]

    [​IMG]

    A few weeks back I promised to post the performance results of comparing a Yost kitted CV44 with a stock CV44 in my all bore 107" motor. I did that this weekend and the dyno results are posted below. The top sheet is the stock CV44 and the lower sheet is the Yost kitted CV44; same carb just different innards.

    The run conditions are similar; 67* vs 70* ambient; 25.7Hg vs 28.7Hg and 70% humidity vs 32% humidity. The only change to the motor was replacing the Yost emulsion tube and needle with the emulsion tube and L needle that comes stock in the SE CV44. The dyno was the same stingy dyno for both runs. I think the results speak for themselves.

    [​IMG]

    [​IMG]
     
    Last edited by a moderator: Dec 18, 2014