Thread: E85 question
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tboudre tboudre is offline
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Posts: 272
Join Date: Jan 2014
Car: 2011 BMW 335xi E90 N55
Default 08-27-2015, 10:22 AM

I run my 2011 N55 E-series on E-85 straight out of the pump, which is actually E70 (this time I'm talking about 70% ethanol content). I understand that there is no BEF for the N55 E-series, nor would it do any good without the turbo upgrade. I've asked the question before, and I'm still not clear on the issue, but what is the issue that requires the BEF? Would you run too lean without modifying the injector trims? You're talking timing in this thread. The JB4 will adjust timing by lying to the DME about the IAT, is this not sufficient?

2011 335i xDrive ///M-Sport LeMans Blue Navigation iDrive 15% Tint N55 E90 - BMS Intake, Le Mans Blue Grilles, Le Mans Blue Rear Diffuser, Alpina B3 TCU Flash, Misc Coding, Matte Black Badge, Gloss Black Exhaust Tips, Blue Calipers*, VRSF Charge Pipe*, Cyba Scoops*, JB4 ISO 5.5, Sport Oil Cooler Valve, FlexFuel (Fuel Rail Pressure) Wires, GoFastBits DV+, Ethanol Content Sensor - No problems up to E70 fuel mix
* Painted 7251 Cobalt Blue Metallic - Matches LeMans Blue
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