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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Level 10 AT Transmission Upgrade



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      07-15-2013, 02:46 AM   #133
enrita
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no updates means running fine.
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      07-16-2013, 01:44 PM   #134
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Very nice to hear we have a viable option with the 6AT! What kind of power are you running?
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      07-16-2013, 01:45 PM   #135
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havent dynoed in a long time. will do when tuning is finalized. now on E50 around 450 whp.
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      07-16-2013, 01:53 PM   #136
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Quote:
Originally Posted by enrita View Post
havent dynoed in a long time. will do when tuning is finalized. now on E50 around 450 whp.
Understand you dont have exact numbers, but was the slippage on OEM parts at that ballpark whp figure? Im approaching that as a power goal, was hoping if I held off power there and kept boost from being too aggressive post shift, I could preserve the AT without major mods (diff lockdown and Alpina Flash). Thoughts?
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      07-16-2013, 02:31 PM   #137
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Quote:
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Understand you dont have exact numbers, but was the slippage on OEM parts at that ballpark whp figure? Im approaching that as a power goal, was hoping if I held off power there and kept boost from being too aggressive post shift, I could preserve the AT without major mods (diff lockdown and Alpina Flash). Thoughts?
As long as you don't run meth/nitrous the tranny *should* hold up fine.

From my point of view, I can put in a couple more used transmissions over the life of the car for the price of the Level10 upgrade...
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      07-16-2013, 02:36 PM   #138
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Yeah, if you bust the trans (mine would shift badly , slip and did not want to shift into 5th) just get a second hand one and run less power. I run the same power as before on this one (500whp) and was shifting fine .
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      07-16-2013, 04:10 PM   #139
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Quote:
Originally Posted by Autobahn335i View Post
As long as you don't run meth/nitrous the tranny *should* hold up fine.

From my point of view, I can put in a couple more used transmissions over the life of the car for the price of the Level10 upgrade...
Quote:
Originally Posted by enrita View Post
Yeah, if you bust the trans (mine would shift badly , slip and did not want to shift into 5th) just get a second hand one and run less power. I run the same power as before on this one (500whp) and was shifting fine .
Ha well I just ordered HFS-4, so no meth is out of the bag. But I do plan on limiting whp to around 450, wtq in the same ballpark. So it sounds like I should be OK at these power levels so long as I avoid tons of launches and whatnot.

Thanks for the responses guys
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      02-18-2014, 01:36 AM   #140
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Trans cooler

Quote:
Originally Posted by enrita View Post
Yeah, if you bust the trans (mine would shift badly , slip and did not want to shift into 5th) just get a second hand one and run less power. I run the same power as before on this one (500whp) and was shifting fine .
Did you end up putting a trans cooler on there?
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      02-18-2014, 01:39 AM   #141
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no updates means running fine.
lol
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      02-27-2014, 11:29 PM   #142
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anyone ever running this trans near their stated 700hp limit? Finding that figure hard to believe.
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      02-28-2014, 06:41 AM   #143
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Quote:
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Did you end up putting a trans cooler on there?
no
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