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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 > Tuning Question



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      06-16-2011, 06:38 AM   #1
Tuner1984
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Tuning Question

Just out of curiosity due to the fact many of us tune and upgrade our cars to get the most power out of them, but does anybody know the max power the stock transmission, clutch, and axles can hold before having to upgrade them?
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      06-16-2011, 06:42 AM   #2
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Quote:
Originally Posted by Tuner1984 View Post
Just out of curiosity due to the fact many of us tune and upgrade our cars to get the most power out of them, but does anybody know the max power the stock transmission, clutch, and axles can hold before having to upgrade them?
it will hold fine till you start pushing over 18-19 psi with meth. depends also how you use the car and how old it is .
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      06-16-2011, 06:53 AM   #3
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2007 E90 335i with roughly 55300 miles on it. Right now I'm running 15lbs. Car isn't tracked or a daily driver. I know I want to add more bolt ons and as a get closer and eventually over the 400 whp mark I just want to make sure I don't have to upgrade parts that require upgrading with more power. I think by the end of summer i'll be around 16.5lbs
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      06-16-2011, 07:19 AM   #4
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35k of tuning without any major issue yet. I been running 16 psi.
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      06-16-2011, 01:43 PM   #5
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ACT Clutch + DSS Half Shafts and you are good. If you are on stock turbos, you will be pressed to max out your drivetrain. If you drag your car often and use line locks + DR's you may have some issues
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