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BMW 3-Series (E90 E92) Forum
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N55 new fuel pump for e85
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| 06-28-2015, 09:30 PM | #1 |
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Enlisted Member
 
3
Rep 47
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N55 new fuel pump for e85
Just curious, those running e85 (with jb4 and any ither bolt ons) have you had to change your fuel pump or does ot work fine as long as you have the flex fuel wire?
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| 06-28-2015, 10:10 PM | #2 |
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Brigadier General
 1161
Rep 3,185
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Fuel pump is fine. Some people go stage 2 from fuelit, but myself and others have run straight E85 with the stock pump. It's more on the tuning side to run high amounts of E85.
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| 06-28-2015, 10:34 PM | #3 |
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Lieutenant Colonel
 
340
Rep 1,744
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E40 is the magic number when running E85. Myself since I have a new HPFP and LPFP I'm going to try working with PTF to create an E50 map later this week. We'll see if the car can stay healthy with it. It's really about the tune aspect of it.
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| 06-29-2015, 02:04 PM | #4 |
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BimmerPost Supporting Vendor
24091
Rep 190,617
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If you want to run a high Ethanol mix, grab the fuel-it stage 2 fuel pump.
You dont want not to have enough fuel delivered when you are running high boost or bad things can happen.
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| 06-29-2015, 11:46 PM | #5 | |
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Private First Class
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Quote:
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