Jun 2, 2017 · The S55 powered M3 is capable of running well over 50% E85 on stock fueling with a tune. On the N54 you can dump in 30-40% E85 mixes with a JB4 tune only. No other mods required.

100% E85 IN THE F80 M3 Now that we've maxed out the power output on the stock turbos with 93 octane, the next step was to tune the S55 for E85. Off the shelf maps using E-Blends are common, such as 30%-50% E-85, but we wanted to go 100% E-85 for the extra power, and if nothing else, the simplicity of filling up with only one fuel type.

The patented ProFlex™ Commander adaptive flex fuel system for BMW E90/E92/E93 M3 allows you to start making more power and running cooler with E85. True plug and play flex-fuel for your BMW in about an hour with no tuning required.

If you're running E85 or ethanol mixes in your G8X M2, M3 or M4, you need this kit! Know your exact ethanol content in real-time via the Fuel-It! or JB4 app on your smartphone or tablet. This complete flex fuel kit installs in under 30 minutes and reads your exact E85 mixture in the Fuel-It! smartphone app or JB4 app if equipped.

Aug 12, 2019 · I’m worn out and confused by all the information regarding E85 in our M3’s and am hoping to hear some real world opinions by those who run it. I have a decent understanding of the how’s and whys it works well and gives a power boost and there are several stations near me that sell it but……

May 2, 2022 · Know your exact ethanol content in real-time via the Fuel-it! or JB4 app on your smartphone or tablet. This complete flex fuel kit installs in under 30 minutes and reads your exact E85 mixture in the Fuel-It! smart phone app or JB4 app if equipped.

Dec 1, 2017 · E85 Tune with Cary Jordan via PTF BM3 at Auto Talent gives an idea of baseline and E85 on the same car and dyno. _____

Oct 7, 2017 · It'd be interesting to see a dyno run with full E85. A friend of mine had an E46 HPF Turbo M3 that was pushing 680whp on full E85. Of course, the rear subframe couldn't hold with all that power, even after steel + spot weld reinforcements. nice! Im surprised your able to run full e85 without having to replace plugs yet.

May 7, 2018 · Our stock BMW E46 M3 test car put out a baseline 270HP on pump gas. After plugging in our PROFLEX Commander and adding E85 the car made 291HP on 75% ethanol. The 21WHP gain is felt across the entire the entire rev range, making the car faster both low and high in the RPMs.

The patented ProFlex Commander adaptive flex fuel system for BMW E46 M3 is a full bolt on performance flex fuel system. Right out of the box you can run E85, gas, or any blend seamlessly without the need to tune or switch maps.