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      06-23-2013, 08:15 PM   #1
westphone
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Drives: M135i MT
Join Date: Aug 2012
Location: Taiwan

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Torque Limit on the Gearbox Limits Tuning?

I guess this question does not limit on the M135i only, but I suppose it applies to all the cars. Let's take manual for example, the gearbox is supposedly made by Getrag, and anything in their range that fit close to the 450 Nm maximum output of the M135i is the 6MTI500 (could be wrong), which is rated at 500 Nm.

My question is which this type of specification does it mean tuning is limited at 500 Nm (which seems to be easily achievable with a tuning box)? For people driving auto ZF specifies pretty much similar torque limits if memory serves me correctly.

I am sure they have safety factors built into them, but then I suppose that's for people dropping their clutches, doing crazy things , or any unforeseen events. I am just wondering how you gents take it? Thanks~

I have a link for their website:
http://www.getrag.com/de/products/ma...ssions_mt.html

Last edited by westphone; 06-23-2013 at 08:31 PM..
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