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  1. #1
    Contributing Member
    Join Date
    09.12.02
    Location
    Seattle, WA
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    Post

    Probably NO ONE will answer, but just in case...

    What's a good starting point for T-Hill gearing?

    Since I'm asking the impossible, give me your R&P ratio, too, if I need to convert.

    Picking a double national weekend for my first FA race will be challenge enough - I can use all the help I can get.

    tim

  2. #2
    Senior Member David Ferguson's Avatar
    Join Date
    09.06.02
    Location
    Paso Robles, CA
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    Post

    I think the top Atlantic guys were seeing 142-145 on the straight. Hope that helps!
    David Ferguson
    Veracity Racing Data
    Shift RPM App for iOS
    805-238-1699

  3. #3
    Contributing Member
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    09.12.02
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    Seattle, WA
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    Post

    Better than nothing!

    Thanks,

    tim

  4. #4
    Senior Member Rennie Clayton's Avatar
    Join Date
    12.30.03
    Location
    New Jersey
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    611
    Liked: 1

    Post

    Hey Tim,

    I don't have our gearset charts right here in front of me, but in testing at Thunderhill running the long course with the cyclone, we can run consistent mid 1:38's all day long and our top speed is 137-139.

    If I remember correctly, for Thunderhill we set the gearspacing for optimum acceleration rather than tailoring it per corner.

    Thanks,
    Ren

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