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Showing results for tags 'BF mk11'.
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Hi, Wondering if anyone can help with advice or information on an issue we have been having with a BF mk2 F6 Typhoon. Just last week we managed to snap the third input shaft fitted to the cars ZF 6-speed. This latest break occurred on the change into third gear at 60kph, no where near boost. The last shaft to break was rated at 900HP. As is we currently have a peak of 360kw and 750nm of torque at the wheels. The box has been built somewhat, and it seems like there was a quick slip on the gear change which shocked the drive train. I Think that there may be an overall fault with the box rather than faulty shafts, causing some sort of misalignment or something due to a malformation. I've suggested ditching this box and fitting a fully manualised and built C4, others involved think we should rebuild this same box again, but I cant help but feel that if it didn't work the first three times, its a lot of money and time to outlay to try for a fourth in a seemingly faulty box. Is this a unique issue? or something common in ZF's when the torque is upped a bit? I'm no genius with transmission work, so any help or thoughts would be very appreciated. Thanks.
