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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 MAPS



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      08-10-2012, 09:52 PM   #1
Rubberismoney
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JB4 MAPS

Why doesn't anyone ever use map 7 on their JB4 or do dynos with it?

Also where are instructions as to using the menus on the JB? Got mine last night and all I can say is DAMN!
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      08-10-2012, 09:55 PM   #2
E90Company
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You need to run race gas or E85 mix to use it
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      08-10-2012, 10:17 PM   #3
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Quote:
Originally Posted by E90Company
You need to run race gas or E85 mix to use it
Map 7 is for race fuel only.
The map details and instructions are on the burger tuning website/forum.
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      08-10-2012, 10:37 PM   #4
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Map 7: 16.5psi race map. 100 RM2 octane required.

Map 5 with 93/E85 is hitting higher boost
Map 5 autoTunes to conditions sometimes you'll have more boost sometimes less and so on.....
Map 7 requires higher oct all the time........ I don't think it's safe if oct, temp and whatever else is not there

That's the way I understand it.....
R
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      08-10-2012, 10:49 PM   #5
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+1
please read :
http://www.n54tech.com/forums/showthread.php?t=10605
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      08-12-2012, 10:58 PM   #6
Rubberismoney
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Ok thanks guys that solved my question but now I have another one. What happens when you enable auto code clear? When you enable it it just kills the code before ever displaying a CEL or what? I'm lost.
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      08-12-2012, 11:40 PM   #7
Rubberismoney
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Also what is timing pull and will it throw codes?
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      08-13-2012, 02:10 AM   #8
boostaholic786
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you need to research stuff like that and DEF not mess with it. You need to gain some knowledge about timing pull and other things people talk about on the forum so you dont do something that will scew your car up. The JB4 is great and is what I run but I did ALOT of research before I starting playing with things. Just go to n54tech.com and most of your questions will be addressed, if not all.
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      08-13-2012, 07:06 PM   #9
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+1

autoclear will clear codes like downpipes o2 sensor, exhaust flap, etc.
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      08-13-2012, 07:07 PM   #10
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For me, because I see more power on map 5 rather and on map 7.
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