E85 engine tuning bookshelf

Some of you may know that in the past ive converted 2stroke lawn boy mowers to e85, and have experimented with various oils. A performance shop i researched is providing tuning configurations to run full e85, regular unleaded, and a blend of both. 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. 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. In a cost per mile basis my current tune is equivalent to getting 30. Plans for 2009 include completion of multicylinder engine development and projection of vehicle level fuel economy and performance. I have access to few drum of e85 in the uae and thought why not try it.

Bmw z4 e85 e89g29 tuning thanks for reading my bmw z4 tuning tips. Most aftermarket airfuel ratio gauges can be calibrated to display these numbers. From the preliminary research ive done, its basically bigger injectors and tuning. Also the alcohol in e85 has a huge cooling property associated with it as well. This is mainly due to e85 working with the lt1s high compression and cylinder head design. 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.

The maximum torque is now 345 nm, which rest at 3,500 rpm series 300 nm. It shouldnt cause a significant amount of damage if any if used moderately and for purposes besides wot. Fuel injection system, go efi 4 power adder 600 hp self tuning, throttle body, black powdercoated, injectors, ecm, kit 7 part number. 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.

Chip tuning from racechip for your bmw z4 e85 86 3. Improving e85 flex fuel performance for c6 ls2 corvette. The e85 optimized engine and the dual fuel concept are logical extensions of fords ecoboost strategy. However, fuel curves should be well developed on e85 before turning up the spark advance or compression. Ethanol alternative fuel e85 secrets hot rod network. While stabilizer extends the shelf life of gasoline, it doesnt. Ethanol parts and supplies nonecm relatedmaster thread by gtlabs, november 20, 2006 2 replies. 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.

E85 has less potential energy compared to gasoline, which is why mileage suffers with e85, but were using it for its other benefits. 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. What potentially makes it better than race gas is the price. E85 tuning conversion information e85 is an extremely popular fuel nowadays for the performance enthusiast.

Ive always wondered if anybody has been experimenting with it in a moto bike. Change to e85,big injectors 1500cc,twin walbro pump intank and fuel trim on haltech platinum sprint 500 the engine. Fuel injection systems e85 fuel type free shipping on. Replacing fuel hoses, fuel pumps, gaskets, seals, fuel filters, fuel injectors, throttle bodies, etc. Small changes in timing and far dont have a huge impact. Should you use ethanolblended, oxygenated fuel in your small engine. Racing with ethanol information iq learning systems. Gpower upgrades the power on the bmw z4 e85 roadster.

With proper tuning and an ethanol blend near 7075%, a subaru can start just fine in the winter and drive perfectly normal. 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. 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. Two stroke weirdness engine tuning for ethanol planet e85. You mention a shudder that could be something else related to the tune rather than detonation. Running e85 on an older model engine without tuning it and replacing some components will ruin the engine in short time. E85 doesnt work well in the winter, it is hard to start the car and it runs poorly trying to warm up. 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%. Your idle afrs on a gasoline calibrated wide band will still be about 14. With the hondata flashpro fk8 civic type r flex fuel software update and.

I am also looking to do an e85 conversion on my 08 z06. E85 gets a bad reputation because a lot of tuners dont understand how to tune for it correctly to start in cold weather. The best thing to do in your case would be to get either a. Plus, e85 reduces inlet air temperatures which improves power by cooling the air entering the cylinder. This is due to the lower heating value of neat ethanol making it difficult to. The general rule of thumb for e85 engines is to shoot for a range between 7. Once at, you would completely fillup the fuel tank with e85 and then. E85flexfuel what to change in hptuners cadillac ctsv. 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.

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. The z4 roadster was launched in 2002 and designed by anders warming. 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. 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. Play it safe, and the bmw n20 is a great engine that really comes to life with a tune and boltons. There will be significant tuning changes necessary when using e85 instead of gasoline, but highcompression engines can especially benefit from e85. 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. The best oil i found was klotz benol, and ive had good results with klotz super techniplate. Furthermore, for those looking for tuning with a limited powertrain warranty, apr. In time, as engine builders continue to test new components on e85, it is probable that even higher gains will be realized. 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. This can be a major hurdle when youre trying to tune your vehicle to take.

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. In this mode the engine is only designed to work on e85, as found directly at. 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. 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. Effects of ethanol blend fuels e10 and e85 on the nonlegislated.

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. It replaced the z3 and an e89 version came out in 2009 followed by the g29 in 2018. Sirimoto e85 flex fuel kit for the fk8 civic type r. Many e85 fans tune their streeters on pump e85 for tooling around the streets and switch to a race e85 tune for the track. E85 has taken over in the performance street car world.

The car was running an fp black at 27psi on the stock block, in the area of 12. Project old school e85 conversion mopar muscle magazine. Fords iconic 4litre barra straightsix is great for tuning. Tuning on e85 efi tuning questions and engine management. E85 vs race gas cooling advantage and tuning ethanol. Keep from botching a project before you have the chance to enjoy it. Runing on same boost 26psi the 97octaneccwe have 450hp dyno dynamic. Just tipping e85 into the tank and retuning the ecu to deliver the correct volume of fuel isnt going to really harness the power. My car is bogging in between part throttle shifts where i am in the gas about 45%55% or so. E85 is gold for forcedinduction engines, but you cant just jam the corn juice into. Running e85 mixes without a tune will result in fault codes and, check engine lights.

What is the difference between a custom tune and an off the shelf map. 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. Many say it is equivalent to 105110 octane, meaning it has much higher knockresistant properties than pump gas and is usually substantially cheaper. A common problem with commercial e85 is different mixtures of ethanol and gasoline. The most common blend we are used to is referred to as e85, consisting of 85% ethanol and 15% unleaded gasoline. On a boosted car, shoot for an afr reading around 11. 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. We use all high quality, race proven parts that will have you racing on e85 with minimal test and tune time. Just send us your carburetor and we will convert and test it for you.

Enables the ecu to dynamically adjust your tune, for a given amount of. 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. You will note there are no comparable test results. A reduced quantity of e85 is necessary to run a race engine previously set up for methanol. Race on e85 is currently converting 4150 and 4500 holley style carburetors to run on e85. Converting from gasoline to e85 for the street hot rod. Ethanol fuels such as e85 require a different calibration in order to start and idle your engine smoothly. The availability issue for street cars precludes a higher compression ratio so that pump gas can still be used in a pinch. Experience the true potential and power of your bmw. I read to dillute it with low octane since alcohol is high octane. We have converted or tuned ford, honda, mitsubishi, subaru, toyota, nissan, volkswagen, gm, acura, lexus, dodge and other makes to run properly on e85. E85lsx is exactly right, weve done quite a few cars, both na and boosted.

So having been told that stoichiometric for e85 is 9. Any guidelines, tables which need changing if any, would be greatly appreciated. On a naturallyaspirated setup, we have seen a 2025 horsepower gain with e85. My question is any special things to look for or just change the stoich to what the e85 calls for and tune. Since there is a special concern about the particle emissions of.