08-07-2017, 11:21 AM | #1 |
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100% E85, why not?
I tried to search for this particular subject, but it is hard to find any information regarding the topic. I have a '15 320i, and it is my first BMW, and I wanted to know why we can't run 100% E85? Is it due to the direct injection? Or maybe something else? I'm genuinely curious on why we're restricted to an E85 blend.
My track toy runs on E85 with a flex sensor that adjusts for blends when I'm in a location where E85 is not present (I run 100% E85 majority of the time), granted that car has a full standalone ECU, and I'm able to change every parameter. Other than the standalone, the only other modification is larger injectors (1000cc), and I replaced the 20-year-old fuel lines. I was under the impression that a JB4 or similar product would allow you to get custom tunes? The 320i would be fantastic with an E85 tune since E85 loves compression. |
08-07-2017, 11:29 AM | #2 | |
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08-07-2017, 11:42 AM | #3 | |
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08-07-2017, 11:52 AM | #4 |
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Oops. Forgot to mention the fuel pump upgrade.
Not many companies make a drop in upgrade for an N20. A quick google search and I only came across Dinan's FP upgrade. I have read N54 guys adding an inline fuel pump with their factory pumps which sounds like a good idea? Looks like I found a fuel pump that would work. https://mmp-e.com/collections/produc...l-pump-upgrade Last edited by .one lane; 08-07-2017 at 12:43 PM.. |
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08-07-2017, 11:55 AM | #5 |
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08-10-2017, 03:18 PM | #6 |
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E85 around here and most places isn't exactly "E85", the pumps can range from (E51-E83) So a station that only gives you an E60 ethanol rating you could fill up with just the e85 handle.
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08-13-2018, 09:41 PM | #7 |
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So is it possible to run full e85 with an upgraded fuel pump and a flash tune?
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08-13-2018, 10:32 PM | #8 |
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Nope, needs a upgrade lpfp or port injection depending on the platform.
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2006 Z4 M Roadster Black/Imola Red, FBO VF-Engineering, e85 Flex Fuel-Sold
2012 BMW 135i N55 DCT Alpine White/Coral Red, FBO, TBI, Full e85, JB4 BEF-Sold 2006 Z4 M Roadster Black/Black-Sold 2021 M2 Competition DCT Hockenheim Silver |
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08-13-2018, 11:14 PM | #9 |
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So with an upgraded fuel pump whats the max you can blend ? e30?
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08-13-2018, 11:26 PM | #10 |
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The stock system can take around e20-e40, again, every car is different and needs to be logged. With the new BM3 software I'm not aware of what can be done but I haven't seen full E85 on the n20 platform. May need supplementary fueling like chargepipe injection.
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2006 Z4 M Roadster Black/Imola Red, FBO VF-Engineering, e85 Flex Fuel-Sold
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08-14-2018, 09:08 AM | #11 |
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I've been talking with Black market parts and Precison racewerks and they have a port injection kit that they've been toying with for the n20 but don't have enough demand for it. They also have a n55 igniton kit that could work with the n20 but it's a tad bit pricey you could buy a turbo lol
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08-14-2018, 09:36 AM | #12 |
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IssaF32 is pushing close to E50 with the upgraded LPFP.
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08-14-2018, 01:36 PM | #13 | ||
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08-14-2018, 01:39 PM | #14 | |||
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2006 Z4 M Roadster Black/Imola Red, FBO VF-Engineering, e85 Flex Fuel-Sold
2012 BMW 135i N55 DCT Alpine White/Coral Red, FBO, TBI, Full e85, JB4 BEF-Sold 2006 Z4 M Roadster Black/Black-Sold 2021 M2 Competition DCT Hockenheim Silver |
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08-14-2018, 01:41 PM | #15 | ||||
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Current: 2017 Bmw 540i M sport bluestone metallic
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