(20-25) BMW S1000RR/R/XR & M1000RR/R/XR E85 Tuning Upgrade

WHAT IS E85 Tuning?

E85 is the ability to fill your 2020+ BMW M1000RR / S1000RR/R/XR, and even the R 1250, with either pump gas (91/93 octane or E85). With the ability to blend ethanol 30% in either direction, you can have the ability to run fuel from varying stations without worrying about the content you are pumping. You can run E0 (zero ethanol) to E30 (30% ethanol) on your pump map and E50 to E85 on your ethanol map and the bike will adjust for each accordingly.

E85 BENEFITS

• E85 makes more power than pump gas but less than VP fuel with the main benefits being easily accessible, cleaner running and less messy/needy than VP, all while being available at many local fuel stations.
• It’s cheap! VP costs about $160 USD for 5 gallons, E85 is about $3 USD per gallon (depending on your location).
• E85 will not foul your spark plugs like a leaded race fuel does after long term usage.
• E85 will not harm your catalytic converter or O2 sensors like a leaded race fuel will after long-term usage.

HOW DOES E85 WORK?

Our Stage 2 performance upgrades utilize the factory wideband sensors to adjust fuel trims. FTCL (full-time closed loop) means your motorcycle already has a fuel map that it will use when you’re riding AND has a lambda target it’s constantly adjusting to hit. When you change fuels from pump gas to E85, the bike will require more fuel (about 30% more with E85). Our FTCL calibration will see the bike needs more fuel and adjust to hit a safe target. The M1000RR / S1000RR already does this from the factory but only for a small percent of time during cruising (not WOT) and only for pump gas. We adjust the software to make sure the closed loop system is on at all times and specifically adjust for Ethanol under certain conditions and variables.

WHAT YOU NEED BEFORE PURCHASE

Because E85 requires FTCL. Before purchase you’ll need to have our Stage 2 mapping. No hardware is required! Just a software update. We have rigorously tested this mapping since mid-2019 on our own shop bikes and hundreds of customer bikes as of writing this Feb 2024. This mapping has been successfully tested in 210+MPH drag racing, roll racing, casual riding, and on circuit track racing...and the owners love it. We have nothing but great things to say about this mapping and all of our beta testers strongly agree.

THINGS TO CONSIDER

• E85 isn't available everywhere. If you're not sure if you have E85 locally, CHECK THIS WEBSITE.
• E85 burns 30% more fuel than pump gas. Keep this in mind when going for a ride as your gas mileage will be 30% less than pump gas.
• Cold starts in 40 degrees Fahrenheit or colder may be harder for the engine to turn over (not harmful and once started and warm it is fine).
• Common sense, but we recommend you do not let E85 sit in your tank with no use for long periods, (more than one month) as the fuel doesn’t last as long as regular pump gas. Alcohol based fuels, like leaded fuels, can dry rubber and seals and stick injectors tips if left sitting for months on end with no use, do not let a bike sit with ethanol or race gas in it for a period of time.
• Only fill your tank with E85 or pump gas when the gas light comes on. Mixing half and half will provide lower performance or ridability issues.
• Make sure your local E85 gas station has good ethanol content (some stations have lower quality E85). Ethanol can vary (between 50-85%). We recommend you test yours before purchase. TEST KIT.
• Lower ethanol content in your E85 means less performance.
• After switching fuels we recommend you gently ride your bike for about 10 minutes while your motorcycle adjusts to new fuel.
• Keep in mind if using our Flex Fuel mapping and happen to fill with a full tank of normal pump gas, there may be a very rich fuel mixture, if you use pump gas that has very low or zero ethanol content.
• Mapping is designed to work for 30-40% swings in ethanol. Our standard pump file will work on 91/93/VP and ethanol blends to E30, our ethanol map will work on ethanol blends from E50 to E85.
• Make sure your software updates and caliper recall has been done BEFORE this upgrade, as every file requires time to make and get 100% right from customer to customer.
• Specific pump gas mapping will be needed for just pump gas. Specific E85 mapping will be needed for E85. If you swap fuels frequently you will need to have 2 separate maps for which fuel is being ran.