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Thread: how much torque

  1. #1
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    Default how much torque

    How much torque can the gearbox on my 6-speed CDTi[150] take?

    I think I can get nearly 260BHP out of it and about 415 lb/ft

    thats with a CRD-T box (or remap) and a specialist LPG kit.

    I know I'll kill the DMF before the gear box but I'm planning on getting an old fashioned flywheel (not dual mass) made for it. Or just welding the 2 bits together...

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    Gearbox is rated at 295lbft (400Nm) maximum torque capacity handling. This is the maximum figure and not a nominal figure, hence the reason why the maximum torque of any Vectra (or any other vehicle that uses the F40 gearbox: Vectra 3.0 V6 diesel, Alfa 2.4 JTD) is bang on a max of 295lbft.

    If you fit a solid flywheel (or make one!) that will only make matters worse for the gearbox (DMF is transmissions 'shock absorber'). You'll also probably need an uprated clutch if you plan on anything much above the gearboxes rated capacity.

    Note: There will be those that say that they've put 400 pounds of torque through it, no problem. But you know the facts now, so the choice is yours.
    Last edited by diesel dog; 20th September 2010 at 14:51.

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