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      09-14-2012, 08:06 PM   #1
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335 AT limit?

So after reading a heap of threads on here I am still a little confused about the Toq level our ATs can handel. what I can gather is around 450NM atw.

anyone?
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      09-14-2012, 09:10 PM   #2
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According to:
http://www.realoem.com/bmw/showparts...24&hg=24&fg=05

The 335i uses GA6HP19Z gearbox.
According to:
http://www.motor-talk.de/forum/aktio...hmentId=681806

GA6HP19Z (designed for maximum torque of 400 Nm).
I think abit more than torque limit isn't too bad, just increase the wear and tear of your gearbox. Depends on how old your car is and how hard the previous owner abuse the car, i would consider slowing the mods down. "Only if you plan to keep the car"

With that said, i am yet to find anyone who screw up their tranny due to torque increase.
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      09-14-2012, 09:27 PM   #3
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The AT we supposedly have according to realoem is the ZF 6HP19Z. The 6HP19 is reportedly built for 400nm of input torque and was used in up until 09/2007. Since then, ZF’s 2nd generation transmissions such as the GA6HP21 came with massively lower shift times and input torque rating of 450nm. Supposedly, BMW is using the 6HP21 in our 2008+ cars but with the internal handle of 6HP19TÜ.

Source
http://www.1addicts.com/forums/showthread.php?t=689728
http://www.just-auto.com/analysis/ne...s_id90340.aspx
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      09-14-2012, 10:39 PM   #4
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Quote:
Originally Posted by playwithonehand View Post
According to:
http://www.realoem.com/bmw/showparts...24&hg=24&fg=05

The 335i uses GA6HP19Z gearbox.
According to:
http://www.motor-talk.de/forum/aktio...hmentId=681806

GA6HP19Z (designed for maximum torque of 400 Nm).
I think abit more than torque limit isn't too bad, just increase the wear and tear of your gearbox. Depends on how old your car is and how hard the previous owner abuse the car, i would consider slowing the mods down. "Only if you plan to keep the car"

With that said, i am yet to find anyone who screw up their tranny due to torque increase.
Thanks for the info

is that 400 rwT?
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      09-15-2012, 04:33 AM   #5
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Hmm interested to know for the oem manual tranny & clutch also
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