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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Map5 vs Map7 Jb4 Review



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      08-10-2012, 12:50 PM   #1
Sam335ix
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Map5 vs Map7 Jb4 Review

I have been playing around with map 5 and 7 with JB4. Map 5 for the first few days has pretty low boost levels (13 psi) while I think its learning and figuring out the octane and mods and after a few days of running hard through 3rd and 4th gear, map 5 finally starts to hit 16 psi with 93 octane and one can of octane booster (toco) and I am very pleased so far. I find map 5 after a few days to be much better than map 2.

Map 7 with 103 octane 50/50 mix with 93 octane is about 17 psi. The car feels quicker and you get pushed back in to your seat. I have been thinking if I should/could run 93 octane with 1 can of torco on map 7 but I dont want to risk it until I do some more research. I am planning to run 100% octane 103 and see how much boost I can squeeze out of the car, I will post my experience once I buy 15 gallons of the rocket fuel.

I will be adding a meth kit soon to compare it vs 103 octane as well. I got tired of waiting for Cobb and I am glad I pulled the trigger on Jb4, I will buy Cobb when it comes out but for now I am happy puppy.
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2011 e90 KW V1, JB4, BMS Dp, BMS Intake, CP, Alpina Flash, ISO, E85

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Last edited by Sam335ix; 08-10-2012 at 12:55 PM.
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