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Thread: Best diff for acceleration

  1. #1
    Spanner Monkey

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    Best diff for acceleration

    Hi which is best diff ratio for acceleration? Im running steel race xflow 161bhp through type 9 bhg box 2.9 first gear.
    Cheers for any advice

  2. #2

    Re: Best diff for acceleration

    4.1 is a good choice but top end speed will be limited, use this to work out which works best for you........https://www.gearboxman.co.uk/ratio-calculator/
    Attached Files Attached Files

  3. #3
    Bodger

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    Re: Best diff for acceleration

    I have a 170 BHP Pinto RS2 and used 4.1, 4.44 and ended up with a 4.7 but I was using it mostly for Hillclimbs/Sprints and road rallies the top spped was poor. The 4.44 was the better option for road use.

    Jim

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