Guhl says with maybe some timing adjustment as well as fuel pressure I could pick up the E85 gains up top but MR12 for sure picked up some good power. E85 has an octane rating between 100 and 105. I've dyno'ed 93 Vs E85 but today I was able to do a MR12 run with some tuning on the dyno. How much more power can you make on e85?

5% more power compared to 93 octane fuel in a NA motor making no other changes (due to the energy content of the fuel and the stoich value). The filter on the right is from my wife's Hellcat running 93 octane gasoline, 4000 miles since the last oil change. E85 definitely gives the car an extra kick, it simply runs smoother. E85 would not have much benefit if you’re not doing it for performance reasons. E85 Vs 93 Octane? E85 is not a new fuel in the marketplace, but is new to some consumers. You can get an AutoCal for about $300. Pondering E85 Vs 93. For us, the E85 trip was about $30 more expensive — about 22.9 cents per mile on E85 versus 18.7 cents per mile with gasoline. Now, if you wanted to splash in some race gas with the 93, that would be better than mixing in E85. The oil filter on the left is from my Hellcat running nothing but E85, 3500 miles since the last oil change. To lure you in, the quick perks to E85 are: - price per gallon is smaller than other blends - it can create more torque and HP - adds a cooling effect to engines because it's an alcohol type-fuel In some country’s, E85 is a more popular gas than regular gasoline. ... (9.8:1 for E85 vs 14.7:1 for pump gas) which means we need to use more of it to mix with the same mass of air. If this is your first visit, be sure to check out the FAQ by clicking the link above.

Many motorsports enthusiasts overlook E85 for performance applications because they associate it with low performance, flex-fuel vehicles.

The other reason not to mix E85 with other octanes is that you typically don't know the exact octane rating of E85 since it changes so often (especially with the seasons).


Using E72 on an E85 tune I'm tuned for E85 and 93 pump - I noticed on my PFC commander than I was getting higher than normal knock counts for my E85 map. E85 is a highly oxygenated fuel consisting of 85% ethanol and 15% gasoline. Looks like up until about 10,000 E85 pulls the same hp as MR12 and then the E85 starts to fall off. Most FI cars seem to pick up 50rwhp+ from 91-93pump to e85 due to its higher octane and cooling effect allowing the car to run more boost and timing safely. Page 1 of 2 1 2 Next > If you have a car with forced induction or a compression ratio over 11:1 or 12:1, E85 would be a … Mustang Forums. Q: What is E85’s octane rating? I would pick one or the other and stick with it. You can't just dump 93 in and be on your merry way without switching tunes. Hers has 500 more miles on the oil change than mine but that shouldn't make this much of a difference in what you see here. I have recently had my 2017 Camaro SS dyno tuned to a point at a local speed shop. 100% E85 would result in roughly 25-33% fewer miles per gallon. ... Gas vs. E85 difference: The fuel economy of our Tahoe on E85 under these conditions was 26.5 percent worse than it was on gas. An alternative is to have both a 93 octane tune for travel, and an E85 tune for local or race use. 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-krazedstang. Lund Flex Fuel Tune - 93 octane vs. E85 Discussion in ' V8 5.0L Engine / Mods: Bolt-ons, Exhaust, Tuning ' started by Bluemustang , Feb 22, 2017 . It's worth 15+ whp on an NA GT over a 93 tune and because of the burn characteristics (cooler) and octane rating (107 on 85% IIRC), is 'safer'. I'm running E85 in my ls3 Camaro.

On the face of it ethanol actually has a slightly lower energy content than gasoline per kilogram, but it also has a much richer stoichiometric AFR (9.8:1 for E85 vs 14.7:1 for pump gas) which means we need to use more of it to mix with the same mass of air. E85 is a fuel that is starting to be sold more and more at stations across the country. Should I run E85? I have recently had my 2017 Camaro SS dyno tuned to a point at a local speed shop.
This primary usage of E85 does not take … Visit our community sponsor. E85 Timing Tables vs 93 octane Hello everyone! Thread starter krazedstang; Start date Jul 14, 2017; Forums. Normally I don't see over 5 on the knock count, but I noticed the last couple times I drove it was going as high as 57. Here are the results for the pump E85 versus 93 octane pump gas: Pump E85 was a killer fuel after tuning, as it made a solid 618 rear-wheel horsepower on our Mustang Dynamometer, soundly defeating our baseline fuel of pump 93 octane gasoline at 574 rear-wheel horsepower. A gallon of diesel runs about 129,500 BTU, and pure ethanol measures out to about 76,100 BTU. A: Gasoline is most often rated on an anti-knock index (AKI) that averages both a research and motor octane number. E85 is a fuel that is made of 85 % ethanol, and 15% gasoline.