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Old 02-08-2021, 10:43 PM
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Drunken E53

Itís official! OleíGirl is faded! LoL.. We installed a performance Flex-Fuel kit, and boy is she buzzin!

There was still a bit of gasoline in the tank, so she is at 50% ethanol as she sits. But already the torque is insane. I can only imagine when she gets up in the 80-90% range, that the pull will only get stronger.

E53 and E39 M54ís, we have figured out how to make the E46 M54 kit compatible.

I am super stoked, that I donít have to pay for premium fuel anymore. A $1.78 is much better than $2.90-$3.05 a gallon.
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Old 02-08-2021, 11:17 PM
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E85 ? Pure alcohol?
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Old 02-08-2021, 11:25 PM
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E85 ? Pure alcohol?

The highest reading that we have ever seen from our local E85 pump was 89%. I am at 50% because of dilution. But the system we installed will do 100% pure alcohol.
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Old 02-08-2021, 11:27 PM
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I figured that you probably had 1/2 tank of E10 before filling up. Is there any benefit of less than E85 or do you get to use that from now on?
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Old 02-08-2021, 11:48 PM
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I figured that you probably had 1/2 tank of E10 before filling up. Is there any benefit of less than E85 or do you get to use that from now on?

Iíve heard that running 50% ethanol gives you a balance between performance and MPGs. I personally want the higher ethanol content for the supercharger.
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Old 02-09-2021, 12:43 AM
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The price/gallon will even out with the lower fuel economy, or at least that was the case on Mouse' F30 after he went e85. His was tuned for up to 80% ethanol if memory serves using a JB4 w/ custom maps.

^ But who cares! Dat torque doh! Must be a ton of fun. Or 2 tons of fun if we're being honest.
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Old 02-09-2021, 01:05 AM
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Originally Posted by crystalworks View Post
The price/gallon will even out with the lower fuel economy, or at least that was the case on Mouse' F30 after he went e85. His was tuned for up to 80% ethanol if memory serves using a JB4 w/ custom maps.

^ But who cares! Dat torque doh! Must be a ton of fun. Or 2 tons of fun if we're being honest.

Yeah, itís cheaper than 87 octane here where I am at, and it is 105 octane. Win/win!

This kit is fricken amazing though, because it tunes in real time. Itís a true Flex-Fuel conversion, with performance in mind, not clean emissions, although it still retains the benefits of a cleaner burning fuel.

It took the RMS custom map (in my case, tuned on the track, they donít have a 4 wheel dyno), and put a real time E85 tune that constantly measures ethanol content, and adjusts the map to the proper spec.

The torque at 50% already put a grin on my grill! I canít wait to get her up to 85%. The track here I heard has E100, do I dare?
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Old 02-09-2021, 01:09 AM
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Old 02-09-2021, 10:03 AM
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Is that the whole kit?
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Old 02-09-2021, 11:48 AM
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What does running this high of ethanol do to the engine oil after say....3000 miles of driving?
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