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01-29-2014, 04:45 AM | #1 |
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Noob question!
I have looked up and down the forum on posts about e85 mixture for the n54. I want to know specifically what do I need to upgrade if I want to mix e85 to my tank with the stock fuel pump. And what mixture can I use with stock pump without causing serious damage to engine/turbos?
I have read tons of threads but each one seemed to spiral out of control and never answer the question. My mods are: Catless DPs Berk axel back HPF FMIC COBB AP BMS DCI
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09 135i BMS DP, HPF FMIC, BERK Axle-Back Performance Exhaust with Sport Mufflers. GA1R Forged Wheels 18'
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01-29-2014, 08:45 AM | #2 |
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On the stock LPFP, you'll wanna settle in the E30-E40 mix area. Here's a really good ethanol blend calculator, but it requires you know what concentration E85 you're using.
Obviously you're going to have to have a tune that has modified the fueling tables to make sure that your trims are where they need to be. An established COBB PROtuner should be able to make you a map pretty easily, just make sure you data log anytime you decided to run this tune.
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01-29-2014, 01:54 PM | #3 |
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The first time I tried E85 I aimed for an E35 mix and just used the Cobb E30 map and then log to make sure your car is happy with it. I measured my mix after the fact and found I missed my target and was only at E28. Logs stopped complaining at about E31.
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2008 135i - MHD/JB4, MS DP's, AMS IC, UI CAI, CDV delete, M3 control arms/Links, RE Toe Link, ECS Trailing Arm, M3 rear SF & Trans bushings, SS brake lines, Michelin PSS.
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01-29-2014, 03:37 PM | #4 | |
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Quote:
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01-29-2014, 06:41 PM | #5 |
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I've only done it twice now and I went to the pump and I figured 30% would be 4.2 gallons. So I put 4.2 gallons in according to the pump and filled the rest up with 93. Then I got a tester and now I'm going to fill a 55 gallon drum in my garage and measure it out with the tester for the summer.
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2009 135i : BMS JB4 G5 ISO,CXRacing FMIC Kit,Injen Cold Air Intake,Evolution Raceworks Charge Pipe,Walboro Inline Fuel Pump, E85 BMS Backend Flash w/ 60% E85,BMS Meth injection (trunkmount),BMS dual meth nozzles,Spec stage 2+ clutch w/ steel SWFW,BMS Catless Downpipes,Berk Tech Race Axleback |
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01-29-2014, 08:04 PM | #6 | ||
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Quote:
Quote:
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01-30-2014, 07:39 AM | #7 |
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Thanks for the heads up. I'm pretty sure I'll blow through that drum in no time. I have a steel drum and it's pretty air tight. I work with chemicals and we get a chemical that made out of pine bark. Basically super concentrated pine sol. It has an extremely strong odor. When the drums are closed you can't smell it at all and it actually builds up pressure/vacuum depending on hot or cold. I have a drum wrench to make sure it's tight too.
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2009 135i : BMS JB4 G5 ISO,CXRacing FMIC Kit,Injen Cold Air Intake,Evolution Raceworks Charge Pipe,Walboro Inline Fuel Pump, E85 BMS Backend Flash w/ 60% E85,BMS Meth injection (trunkmount),BMS dual meth nozzles,Spec stage 2+ clutch w/ steel SWFW,BMS Catless Downpipes,Berk Tech Race Axleback |
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01-30-2014, 10:22 PM | #8 |
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Okay what my real question is what is the amount of e85 and 93 to obtain e30?
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01-30-2014, 10:38 PM | #9 |
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Link in Post #2 Just make sure to data log (especially fueling channels) when you run ethanol blends
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01-31-2014, 07:37 AM | #10 |
The Crowing
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haha, well if your adding one gallon of fuel. you want 30% of it to be E85. so .3 gallons of E85 and .7 gallons of 93 octane. haha.
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2009 135i : BMS JB4 G5 ISO,CXRacing FMIC Kit,Injen Cold Air Intake,Evolution Raceworks Charge Pipe,Walboro Inline Fuel Pump, E85 BMS Backend Flash w/ 60% E85,BMS Meth injection (trunkmount),BMS dual meth nozzles,Spec stage 2+ clutch w/ steel SWFW,BMS Catless Downpipes,Berk Tech Race Axleback |
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