E85 Tune yet? (moved 2011)

[GAP]

Has anyone tried an E85 tune on the coyote motor yet? I'm interested to see what gains you'll see on high octane.

 

[kyoshosp2]

I dont beleive the fuel system will like it... not sure it was designed to have e 85 go thru the system..

 

[JDM74]

If you open the fuel door, it has a "no E85" emblem on it.

 

[KrisR]

If you open the fuel door, it has a "no E85" emblem on it.

I'm guessing that's just because the factory ECM isn't programmed for it...it's not a 'flex-fuel' vehicle. Should be no different that changing over to E85 on older S197s (injectors, pumps, tuning).

 

[05yellowgt]

The door says no E85 on it because the car isn't designed to be a flex fuel vehicle. Provided that the injectors are large enough, You can run E85 with the proper tune. I know that 3v's can pickup 5-10rwhp vs 93 octane n/a when going to E85. Should be able to see at least that vs 93 octane on the 5.0 if the tune is tweaked correctly. When/if I get my hands on a 5.0 I plan on doing an E85 tune for it.

 

[19COBRA93]

All modern fuel systems are able to withstand E85, but unless the tune, or capacity to run the additional fuel needed, is designed for it then it shouldn't be run.

Flex Fuel vehicles have special injectors, pumps, and ethanol sensors to correct for what fuel is being used. You can't just pull up to an E85 pump and fill it up unless the tune has been corrected for it. 2011's are not Flex Fuel, so unless someone builds a specific E85 tune, then there probably aren't any out there yet. The 2011 fuel systems seem to have the ability to flow enough to run E85 as the new supercharger kits aren't requiring a fuel pump upgrade (injectors possibly).

Ford is labeling all non-Flex Fuel vehicles with the "No E85" stickers because E85 has become so popular.

 

[05yellowgt]

Ford does not use any ethanol sensors so far in their flex fuel vehicles. They use the O2 sensors and feedback from the short and long term fuel trims to detect the change in Stoich and adjust the fueling and spark tables accordingly. GM does use ethanol sensors in their flex fuel vehicles to detect the percent of ethanol in the fuel and switch to different fuel and spark tables.

 

[GAP]

I know on a nearly stock 3v, E85 maxes out the stock fuel system. Will the stock fuel system even be able to deliver an extra 40% more fuel to support an E85 tune? I dont even know what size pump(s) or injectors they come with.

 

[ngnichols]

Not worth the trouble.

 

[05yellowgt]

I am not sure of the size of the stock 2011 injectors but the fuel system seems to be more than stout enough for E85 in n/a form. The stock pumps are making 600+ at the crank. If you notice, FRPP, nor Procharger is advertising anything beyond fuel injectors for their supercharger kits.

 

[GAP]

Not worth the trouble.

Sure you may only get 15rwhp. But what trouble is it to get an appropriate tune and fill up with E85 instead of E10? You could even just load it as a race only tune for when you're going to the track.

 

[05yellowgt]

Throttle response is and part throttle power is also much improved on E85. You can feel this even on Ford's Flex fuel vehicles.

 

[JJ@WMS]

I have personally tuned several vehicles running E85 and love the results. From a 740hp supercharged Lightning to the one and only S197 running 10's N/A with an auto and I can tell you that it does a great job of making power. The tuning is pretty straight forward and not hard to do but as has been mentioned the fuel system needs to be able to handle the power level your after. I'm sure the stock fuel system on the 2011 GT 5.0 in N/A form can handle an E85 tune and we will find out here as soon as we have our car back. A few more HP along with the distillery smell is a good thing. LOL

JJ

 

[RSKtakR]

what all would need to be added to the current fuel system (if anything) to run E85? i know these cars can adjust the ecu depending on the octane of fuel in the car automaticly, but will this same system work for the E85? i dont thing the ECU sees the octane change until the fuel is allready in the motor, so wouldnt there need to be something that sits elsware in the fuel tank or something that can detect the E85? and since there is so many different variations of E85 and its not all EXACTLY the same i would think that this "sensor" would be needed anyways.. id be game to run it if it where an option!

 

[05yellowgt]

I've never seen any of the tuning parameters in the 2011 ECU's but in theory since the O2's are true widebands now, in theory if the ECU was programmed for it there is nothing stopping the Coyote from being a flex fuel motor. In fact, the 2011 F150 5.0 is flex fuel compatible. You will need a custom tune for E85 to make it work. The fuel pump is more than enough for the switch to E85. What I don't know is what size injectors are stock on the motor. I know that the stock injectors on the 3v were just big enough for a bolt on car to switch to E85 but I switched to 39's when n/a to be safe.

 

[jestang]

wanted to bump this thread to see if anyone has converted an 11 to e85 yet? I'm looking at doing this to mine (already have some 80lb injectors) but I'm not sure if its actually worth the hassle or not ... I would think the coyote motor would like e85 due to the high compression .... should give the ability to run a lil more timing i think

 

[19COBRA93]

What I don't know is what size injectors are stock on the motor.

If anything, for an n/a '11, one could swap to the $250 47lb injectors FRPP offers. That should offer plenty of fuel for n/a on E85.

 

[RSKtakR]

If anything, for an n/a '11, one could swap to the $250 47lb injectors FRPP offers. That should offer plenty of fuel for n/a on E85.

someone needs to hurry up and try this!! lol

 

[jestang]

i am working on converting my 2011 to e85 ... a friend converted his 08 z06 to e85 and saw some pretty nice gains NA. Think these cars with higher compression should like it a lot.

 

[Twinscrewgt]

I plan on having 2 tunes on my car... 10-12 psi will be on 91. I'm hoping that 21-25psi on E85... Time will tell