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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 > Is it possible for a AT 335i to rev pass the 7k rpm limit?



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      11-20-2012, 11:27 PM   #1
KyLu II
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Is it possible for a AT 335i to rev pass the 7k rpm limit?

Just wondering is it possible for a AT car to go pass the 7k rpm maximum?
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      11-20-2012, 11:29 PM   #2
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if the tranny slips all things are possible
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      11-20-2012, 11:31 PM   #3
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Im pretty sure that the tranny wont allow paddle-shifter downshifts that will put it outside the red-line. Although, i wouldnt go and test that, if possible OP, do you think you over-revved the engine?

EDIT: Are you concerned about over-revving or are you looking for an increased redline?
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      11-20-2012, 11:41 PM   #4
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it can and will, waiting on programing.
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      11-20-2012, 11:44 PM   #5
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Quote:
Originally Posted by HPF 335i #1 View Post
it can and will, waiting on programing.
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      11-20-2012, 11:47 PM   #6
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So... This will benefit single turbo set ups... Cool!
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      11-21-2012, 12:18 AM   #7
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Quote:
Originally Posted by Eric335 View Post
Im pretty sure that the tranny wont allow paddle-shifter downshifts that will put it outside the red-line. Although, i wouldnt go and test that, if possible OP, do you think you over-revved the engine?

EDIT: Are you concerned about over-revving or are you looking for an increased redline?
just wondering since i seen this log from an AT 335 at 7.7k rpm!
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      11-21-2012, 12:20 AM   #8
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Originally Posted by KyLu II View Post
just wondering since i seen this log from an AT 335 at 7.7k rpm!
Well, that could be dangerous.
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      11-21-2012, 12:22 AM   #9
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i hit 7.2k the other day in 3rd gear LOL
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      11-21-2012, 12:26 AM   #10
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I hit 7.2 from a manual down shift to first while roasting the tires and second gear went to 7.2 as well. Happened so fast my manual shift was to late. COBB pro tuned.
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      11-21-2012, 12:32 AM   #11
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i hit 7.2k the other day in 3rd gear LOL
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Originally Posted by VNeBLOB42 View Post
I hit 7.2 from a manual down shift to first while roasting the tires and second gear went to 7.2 as well. Happened so fast my manual shift was to late. COBB pro tuned.
ive seen logs that top at 7.2k rpm but nothing like this lol
upper 7k that cant be good
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      11-21-2012, 12:40 AM   #12
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i found this video that hotrod182 posted.
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      11-21-2012, 01:44 PM   #13
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Well good to know our motors are good for 8k, at least for very brief moments lol.
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      11-21-2012, 01:57 PM   #14
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Quote:
Originally Posted by KyLu II View Post
ive seen logs that top at 7.2k rpm but nothing like this lol
upper 7k that cant be good
I believe COBB raises the rev. limiter to 7.2 for manual trans. I am not sure if that's the same for AT. it may be though.

But either way, my dyno charts as well as others, clearly shows the loss of power after 5.5k - 6k. I shift around 6k anyway.
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      11-21-2012, 03:48 PM   #15
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Quote:
Originally Posted by VNeBLOB42
Quote:
Originally Posted by KyLu II View Post
ive seen logs that top at 7.2k rpm but nothing like this lol
upper 7k that cant be good
I believe COBB raises the rev. limiter to 7.2 for manual trans. I am not sure if that's the same for AT. it may be though.

But either way, my dyno charts as well as others, clearly shows the loss of power after 5.5k - 6k. I shift around 6k anyway.
Same here, around 6000 which means i actually shift around 6250 due to my reaction times.
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