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Earn more by sharing our website on social media and referring your friends. Newsletter: Join our newsletter for the latest XPH news, exclusive deals, group buys and coupon codes. We also offer exclusive newsletter flash sales. Order Link https://x-ph.com/bootmod3-flash-tune/ What is the difference between a custom tune and an “Off The Shelf” map? An “OTS” map is a general tune, meant to be safe, reliable and run decent across all engines, setups and deal with a varying degree of fuel quality (station-to-station, state-to-state). While the OTS maps are good, a custom tune from JordanTuned, LLC is built specifically for your engine, setup and fuel and meticulously dialed-in for your exact engine, setup and fuel with safety continuously monitored through the process. Every engine is different due to factory tolerances. Some engines will make more power than others naturally. Other factors such as the combination of aftermarket parts, varying fuel quality, prevailing local meteorological conditions, altitude and how the engine was broken-in all play roles in how an engine needs to be tuned. What are the risks? Tuning, in-general, can be risky, but choosing the correct tuner can mean the difference between a well running and performing setup and a poorly performing setup or worse, a blown engine. Tuning is complicated and a good calibrator has a lot of variables to take into considerations to ensure an engine always remains powerful and stays safe, even in less-desirable conditions. Bad/incorrect fuel, high ambient temps, potential cooling malfunctions……etc. can all lead to disaster if the custom tune isn’t calibrated correctly. Going fast is only one part of the equation, staying safe is the most important. There is no way to guarantee absolute safety when doing ANY aftermarket modifications, but great care is taken on our part to ensure it’s as safe as possible, using our 17+ years of internal combustion engine tuning experience. All safety features are kept in-tact and some even improved upon, all in the interest of absolute safety. JordanTuned, LLC has the record to back our claims up as the “most trusted name in custom tuning”. How long does the custom tuning process typically take ? Under normal circumstances, turn-around time for a base map is typically same-day. How many revisions are needed depend greatly on engine, setup and fuel. Most S55 custom calibrations typically take 4-6 revisions to complete, for instance. During the tuning process, we take our time to ensure maximum engine safety and drivability. It’s very important to slowly bring power up and to catch things before they become real issues. This is 100% bespoke tuning, we aren’t using OTS maps and making small tweaks - each of our custom calibrations are like finger prints. Just like each engine and setup, they are all different. All of our base-maps are developed and built by us. If I’m running a full-E85 custom tune, can I run pump gas? Yes. However, you need to run the correct calibration file for the fuel you put in the tank. If you have E85 or other ethanol blend (E30, E50, E60, E70…etc), you’ll want to run the appropriate custom flash tune for the fuel that’s in the tank. Modern BMW DME’s don’t currently have the capability to have a true “flex fuel” setup, therefore the DME doesn’t have a way to adjust for massive changes in ethanol content (Going from E85 to E10 pump gasoline, for instance). Our custom calibrations do have some wiggle-room built into them for instances where your local E85’s ethanol content changes, but nothing less than E60-70 should be used if tuned for full-E85, for instance. How do I convert to E85 from pump gasoline? Detailed info on how to convert to and switch back and forth between ethanol-based fuels and gasoline-based fuels is sent with all ethanol-based custom calibrations. To put it simply, you’ll take your tank down to “——” on the Estimated Distance to Empty gauge on your dashboard. Once you go past “0” on the EDE, you’ll see “——” indicated on the gauge. This means you’ve reached your “reserve tank”, which is typically ~1 gallon of fuel left in the tank. The fuel gauge itself isn’t accurate and therefore can’t be trusted to measure actual fuel level. The only time we really know exactly how much fuel is in the tank is around the “——” indicator on the EDE. Once at “——”, you would completely fill-up the fuel tank with E85 and then flash to the appropriate E85 custom calibration. Once fully converted to E85, you can fill-up whenever you’d like, at any remaining fuel level. What about an ethanol mixes (E30-E60)? For ethanol mixes (E30-60), you’ll have a similar process, but you’ll need to make precise calculations using your tank’s actual size, the ethanol content of your local E85, the content of your local pump gasoline (typically %10 ethanol or E10 for the US) and the desired ethanol level. In this case, fill-ups always have to be performed at “——” to ensure the calculation is never thrown off by an unknown amount of fuel left in the thank. If running E85, do I need to run pump gasoline through the fuel system occasionally? While engines like the S55 have ethanol-safe fuel systems, there are some fuel system maintenance considerations we must be mindful of when running E85 for prolonged periods. Alcohol fuels such as E85 (ethanol is an alcohol fuel) are what’s called hygroscopic, meaning they attract water. If they are exposed to the atmosphere (especially in high-humidity environments), they will pull the water from the atmosphere and hold it in the fuel. There are other contamination issues beyond water contamination as well, especially when running pump E85. It is recommended you cycle a tank of pump gasoline through the fuel system AT LEAST once every 3 months or 3k miles. There are some good fuel system conditioners and stabilizers on the market from the name-brands and those are fine to run, however it’s still recommended to cycle a tank of pump gasoline through the system every 3 months or 3k miles at the very least. Do not store E85 for long periods. If you plan on storing your car for longer than a week, completely fill-up your fuel tank with E85 so that there is little-to-no air in the fuel tank. If longer than 2-3 weeks, switch over to pump fuel for the storage period. It is best to keep your car’s fuel tank full of E85 to avoid having any excess air in the tank (air contains moisture). If you store your E85 in your garage, do not store it in plastic fuel cans for long periods, even ethanol-safe fuel cans, as they are not air-tight and the E85 will not store very long before water contamination becomes an issue. E85 can be stored for longer periods in air-tight barrels, so long as you keep the barrel as full as possible to avoid excess air being trapped inside the barrel with the E85. Should I spot-check my E85 and if so, how often? We recommend spot-testing your E85 using an ethanol tester (also known as a gasohol tester), which can be found in most home improvement stores (Lowe’s, Home Depot, Ace) in the small engine section (lawnmowers...etc), or can be picked up for about $12 on Amazon. Please check the ethanol quantity and quality before your initial first fill-up to know the exact ethanol percentage of your local E85. Also be looking for particulates in the sample, as this will indicate particulate contamination and should absolutely be avoided. Keep in-mind that each station is different, so we encourage you to test the stations around you and pick the station that has the highest ethanol level with the cleanest sample. It’s also encouraged that you use the same station for each fill-up and that you spot-check your E85 every few fill-ups.