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Thread: what kinda of rpm's

  1. #1
    Senior Member EXPERT BUILDER
    Join Date
    Jul 2009
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    nekoosa wisconsin
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    308

    what kinda of rpm's

    ok im gonna run a 29x12.5x15 tire with 4.56 gears and a th 350 i live out in the country so 55-60 will be ran for 10-15 miles when crusied will i be ok running it like this or would 4.10 be better what kinda of rpm's will i run
    also i will have a 1800-2200 stall converter can i run it with the 4.56 gears
    any help is appreciated
    don't have a big budget so don't tell me to get a tranny with over drive




    thanks logan

  2. #2
    Senior Member RACING JUNKIE TheRabbit's Avatar
    Join Date
    Jan 2007
    Location
    Augusta, Ga.
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    2,295
    Most tires are 1.5 inches shorter than advertised so 4.10 will be 3,000 and 4.56 will be 3,325 rpms at 60 mph

    That's fine with me. It's yours, you can run a 6.20 gear @ 4,800 at 60mph and it's ok with me. :lol:

  3. #3
    Senior Member EXPERT BUILDER
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    Jul 2009
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    nekoosa wisconsin
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    ok thanks


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