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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 Map 2 vs Map 5??



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      11-13-2012, 12:47 PM   #1
Airdanny
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Jb4 Map 2 vs Map 5??

Hey guys, first off I have catless downpipes and dci. I have been running on map 5 since I first got my jb4 (last week) because I had 91 oct. 80% mixed with 100 oct. 20% in the system. This week I decided to fill her up with 93 oct straight up, and when I switched to map 2 I feel as if map 5 had more pull than map 2 (although map 2 is supposed to put 14.5 psi on a regular basis vs map's 5 11-16 variable psi.) Anyone feels as if map 5 pulls more than map 2? Maybe its because of the octane mix I had... I know that Ill have to dyno it to be sure, but just wanted to know your opinions.
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      11-13-2012, 01:19 PM   #2
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Anyone?
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      11-13-2012, 01:23 PM   #3
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I run E-85 and map 2 is much faster than my map 5. Every car is different though. Just run whatever map feels strongest to you.
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      11-13-2012, 02:23 PM   #4
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Map 5 is just insane with e85. Makes my car so happy. Make 2 not so much
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      11-13-2012, 02:50 PM   #5
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Map2 peaks at 14.5.. Map 5 can go up to 17psi...
So Map5 is usually always stronger then map2, even on pump and its more consistent.
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      11-13-2012, 03:28 PM   #6
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Map 2 is 14.5psi and map 5 with e85 is between 17-18psi. I think it depends on the firmware u have. Before my map 2 was faster until I got the updated firmware. And now there is no comparison. Go to n54tech.com....
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