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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 > Jb4 boost limiter



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      11-09-2015, 09:26 PM   #1
Turbo_power4ever
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I was looking at the jb4 cluster chart. It says options 13,14 and 15 are for 1st, 2nd and third gear boost limiter. Well i set both 13and 14 but when i try to get the needle to move to 15, it wont move past 14? Am i missing something here? Lol tires are too expensive!
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      11-09-2015, 09:37 PM   #2
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Are you on the latest firmware
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      11-09-2015, 09:43 PM   #3
Turbo_power4ever
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Quote:
Originally Posted by musc
Are you on the latest firmware
I updated like 3 months ago. I see there is a new one from october, but regardless, option 15 should of still been on all previous versions right?
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      11-10-2015, 08:39 AM   #4
csu87
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you shouldnt need a 3rd gear boost limiter anyway. 3rd gear is where most of your race will be, and you dont want to limit your power there.
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      11-10-2015, 08:49 AM   #5
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take a log. way easier to see actual values.
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      11-10-2015, 09:39 AM   #6
Mike@N54Tuning.com
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Make sure you are update with firmware and your interface is also updated. Third gear like mentioned above should not be limited unless you have crazy traction issues.

Mike
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      11-10-2015, 11:56 AM   #7
Turbo_power4ever
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Ok thanks guys. Your right about not limiting third gear.
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      11-10-2015, 01:48 PM   #8
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Quote:
Originally Posted by Turbo_power4ever View Post
Ok thanks guys. Your right about not limiting third gear.
Make sure to update to the newest JB4 firmware every 1-2 months
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