E85 engine tuning bookshelf

A common problem with commercial e85 is different mixtures of ethanol and gasoline. Because of the alcoholgasoline mixture, e85 has a rough estimate octane rating of between 1051 octane depending on the mixture. The higher octane of e85 allows us to either increase the compression ratio of an engine design, or put in more timing into the tune to raise horsepower. Any guidelines, tables which need changing if any, would be greatly appreciated. Ive always wondered if anybody has been experimenting with it in a moto bike. On a boosted car, shoot for an afr reading around 11. Improving e85 flex fuel performance for c6 ls2 corvette. A higher octane fuel such as e85 octane or 117 octane resists detonation so you can run more boost or more timing and make more power without hurting the engine. It replaced the z3 and an e89 version came out in 2009 followed by the g29 in 2018. The most common blend we are used to is referred to as e85, consisting of 85% ethanol and 15% unleaded gasoline.

Tuning on e85 efi tuning questions and engine management. My question is any special things to look for or just change the stoich to what the e85 calls for and tune. I read to dillute it with low octane since alcohol is high octane. Plans for 2009 include completion of multicylinder engine development and projection of vehicle level fuel economy and performance. Some of you may know that in the past ive converted 2stroke lawn boy mowers to e85, and have experimented with various oils. E85 flexfuel commander e55 sl55 s55 cls55 g55 slr cl55 c63 e63 e85 please select engine and injector type you are selecting which injector type you will be using, this kit does not include injectors. Most aftermarket airfuel ratio gauges can be calibrated to display these numbers. The car was running an fp black at 27psi on the stock block, in the area of 12. Many say it is equivalent to 105110 octane, meaning it has much higher knockresistant properties than pump gas and is usually substantially cheaper. Many e85 fans tune their streeters on pump e85 for tooling around the streets and switch to a race e85 tune for the track. Ensure you are running proper supporting mods such as an upgraded intercooler, and e85, if available, as these mods will assist in reducing predetonation risks. By reducing hot spots in the combustion chamber and cooling the intake charge, e85 is a great way to keep your mustang running longer with high. You mention a shudder that could be something else related to the tune rather than detonation. Two stroke weirdness engine tuning for ethanol planet e85.

Sirimoto e85 flex fuel kit for the fk8 civic type r. Furthermore, for those looking for tuning with a limited powertrain warranty, apr. With the hondata flashpro fk8 civic type r flex fuel software update and. With more than 12 years of experience in building race engines and ecu mapping we came in contact with bioethanol e85 and flex fuel many years ago. Bmw z4 e85 e89g29 tuning thanks for reading my bmw z4 tuning tips.

E85 vs race gas cooling advantage and tuning ethanol. Your idle afrs on a gasoline calibrated wide band will still be about 14. Methanol injection is one way to add more octane, but we find it generally tunes similar to 100 octane, so while it is a big help, it makes nowhere near the power of e85. While stabilizer extends the shelf life of gasoline, it doesnt. The maximum torque is now 345 nm, which rest at 3,500 rpm series 300 nm. Enables the ecu to dynamically adjust your tune, for a given amount of. It shouldnt cause a significant amount of damage if any if used moderately and for purposes besides wot. So having been told that stoichiometric for e85 is 9. Just tipping e85 into the tank and retuning the ecu to deliver the correct volume of fuel isnt going to really harness the power. Race on e85 is currently converting 4150 and 4500 holley style carburetors to run on e85. Fuel injection system, go efi 4 power adder 600 hp self tuning, throttle body, black powdercoated, injectors, ecm, kit 7 part number. E85 doesnt work well in the winter, it is hard to start the car and it runs poorly trying to warm up. Guys that race blown turbo or super engines on e85 often use pump e85 around town and dial the tune back a little, then when they race they use racing e85 and crank the tune back up. Replacing fuel hoses, fuel pumps, gaskets, seals, fuel filters, fuel injectors, throttle bodies, etc.

Ethanol based fuels are common place in the automotive world and since ethanol is a renewable resource and a cleaner burning alternative to gasoline, ethanol, or mores specifically ethanol blends, have become a popular choice in many countries. My car is bogging in between part throttle shifts where i am in the gas about 45%55% or so. E85 has an octane rating that is higher than that of regular gasolines typical rating of 87 through 93, and this allows it to be used in higher compression engines. Should you use ethanolblended, oxygenated fuel in your small engine. Chip tuning from racechip for your bmw z4 e85 86 3. E85lsx is exactly right, weve done quite a few cars, both na and boosted. Although the feds have deemed alcohol that potent unsafe for human consumption, engines love it, especially those with an appetite for pressurized air molecules. Even with relatively low static compression ratios of 8. Fords iconic 4litre barra straightsix is great for tuning. Since there is a special concern about the particle emissions of.

The check engine light came right john g on at about 50 miles probably because of the computer being confused by the oxygen mix or something like that. Just send us your carburetor and we will convert and test it for you. In time, as engine builders continue to test new components on e85, it is probable that even higher gains will be realized. Running e85 on an older model engine without tuning it and replacing some components will ruin the engine in short time. With proper tuning and an ethanol blend near 7075%, a subaru can start just fine in the winter and drive perfectly normal. Changing over to e85 requires modifying your fuel system to keep things clean. When you tune a carburetor for using certain kinds of fuels, from e0 to e10 is 10. Pure ethanol or e100 isnt typically used as a fuel since its lack of volatility compared to gasoline can make it hard to start when the engine is. The availability issue for street cars precludes a higher compression ratio so that pump gas can still be used in a pinch. Play it safe, and the bmw n20 is a great engine that really comes to life with a tune and boltons. Fuel injection systems e85 fuel type free shipping on.

Ethanol alternative fuel e85 secrets hot rod network. From the preliminary research ive done, its basically bigger injectors and tuning. We use all high quality, race proven parts that will have you racing on e85 with minimal test and tune time. The best thing to do in your case would be to get either a. The z4 roadster was launched in 2002 and designed by anders warming. First, dont chip too early there is no point in getting a new ecu program early in your engine build up and then later upgrading to bigger lift and duration cams, or larger injectors, bigger fuel pump, or an aftermarket imbigger bore tb, etc. Small changes in timing and far dont have a huge impact. Plus, e85 reduces inlet air temperatures which improves power by cooling the air entering the cylinder. E85 and forced induction considering how well e85 performs in naturally aspirated engines, then its not surprising that forced induction applications can benefit even more. Converting from gasoline to e85 for the street hot rod. E85 is an abbreviation typically referring to an ethanol fuel blend of 85% ethanol fuel and 15% gasoline or other hydrocarbon by volume in the united states, the exact ratio of fuel ethanol to hydrocarbon may vary according to astm 5798 that specifies the allowable ethanol content in e85 as ranging from 51% to 83%. Gpower upgrades the power on the bmw z4 e85 roadster. In this mode the engine is only designed to work on e85, as found directly at.

With an octane rating of well over 100, the cooling properties of an alcoholbased fuel and a price tag 1030 cents per gallon cheaper than regular 87octane gasoline, e85 is an. E85 has less potential energy compared to gasoline, which is why mileage suffers with e85, but were using it for its other benefits. Ethanol fuels such as e85 require a different calibration in order to start and idle your engine smoothly. The e85 optimized engine and the dual fuel concept are logical extensions of fords ecoboost strategy. E85 gets a bad reputation because a lot of tuners dont understand how to tune for it correctly to start in cold weather. E85flexfuel what to change in hptuners cadillac ctsv. What potentially makes it better than race gas is the price. Will ethanolblended gasoline ruin your small onsite installer. You will note there are no comparable test results. There will be significant tuning changes necessary when using e85 instead of gasoline, but highcompression engines can especially benefit from e85. The best oil i found was klotz benol, and ive had good results with klotz super techniplate. On this tune the customer swapped out the header and it appears we lost some bottom end power over the old but peak power stayed about the same on pump gas. Project old school e85 conversion mopar muscle magazine.

Also the alcohol in e85 has a huge cooling property associated with it as well. I am also looking to do an e85 conversion on my 08 z06. Once at, you would completely fillup the fuel tank with e85 and then. Tuning tips for your e85 carburetor crazy long mark. A performance shop i researched is providing tuning configurations to run full e85, regular unleaded, and a blend of both. On a naturallyaspirated setup, we have seen a 2025 horsepower gain with e85. Effects of ethanol blend fuels e10 and e85 on the nonlegislated. There is more to gain with a stock, naturallyaspirated car by adding and tuning for e85 fuel than just tuning a stock, naturallyaspirated car on pump gas, he said. Hey mark, i was wondering if you could refersh my memory on the changes in jetting needed vs the alcohol content on the summer vs winter blends.

However, fuel curves should be well developed on e85 before turning up the spark advance or compression. Keep from botching a project before you have the chance to enjoy it. Ethanol parts and supplies nonecm relatedmaster thread by gtlabs, november 20, 2006 2 replies. What is the difference between a custom tune and an off the shelf map. Change to e85,big injectors 1500cc,twin walbro pump intank and fuel trim on haltech platinum sprint 500 the engine.

This is due to the lower heating value of neat ethanol making it difficult to. I have currently moved to a 100% e85 tune since i now have adequate availability of e85 and can run it all the time with little difficulty. Racing with ethanol information iq learning systems. Runing on same boost 26psi the 97octaneccwe have 450hp dyno dynamic. This can be a major hurdle when youre trying to tune your vehicle to take. I have access to few drum of e85 in the uae and thought why not try it. Experience the true potential and power of your bmw. Running e85 mixes without a tune will result in fault codes and, check engine lights. E85 has taken over in the performance street car world. Since the advent of e85 in the early 2000s, people have been using it as gofast juice due to its intrinsic knock resistance and cooling properties. In a cost per mile basis my current tune is equivalent to getting 30.