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Thread: 4.6 diff versus 4.3

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  1. #24
    Expert TheFlyingBadger's Avatar
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    Quote Originally Posted by dom14 View Post
    Yeah, I think I understand what you are trying to explain. You get less of an engine brake with 35" than with 31" on a given gear and steep angle down a hill. I think the reason is 35" goes further on the ground per turn of the wheel than 31", making the engine braking slightly less effective.

    Correct..

    RB30, 1st Gear, Std Low Range @ 2500rpm


    Diff Ratio Tire Size Speed (km/h)
    4.375 31 12.63
    4.375 35 14.26
    4.625 31 11.95
    4.625 35 13.49
    4.880 31 11.32
    4.880 35 12.79
    5.130 31 10.77
    5.130 35 12.16


    RB30, 1st Gear, 43% Reduction Low Range @ 2500rpm

    Diff Ratio Tire Size Speed (km/h)
    4.375 31 8.92
    4.375 35 10.07
    4.625 31 8.44
    4.625 35 9.53
    4.880 31 8.00
    4.880 35 9.03
    5.130 31 7.61
    5.130 35 8.59
    Last edited by TheFlyingBadger; 10th August 2015 at 04:33 PM.
    Jon

  2. The Following User Says Thank You to TheFlyingBadger For This Useful Post:

    dom14 (10th August 2015)

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