OFT E85 tune and mileage.... - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Tromatic · 04-11-2014, 06:28 PM

Stock car other than TRD filter. I got 18 whole miles to the gallon of booze on the last tank, although the car is faithfully reporting almost 26 mpg. By doing the math, I've never gotten better than 25 on regular gas, either.

Some sacrifices must be made, I guess!

jamesm · 04-11-2014, 06:35 PM

This is because oft uses the injector scaler to compensate for e85's fueling requirements. The ecu doesn't know that it's injecting more fuel, since requested fuel volume doesn't change. Normally with flex fuel you'd compensate requested volume against the ECA which allows the gas mileage calculation to function properly.

Luckrider · 04-12-2014, 02:16 PM

To be fair though, relying on the readout for fuel consumption is generally hopeless. It is fun to pretend it gets half decent mileage though.

86viper · 04-13-2014, 07:10 AM

im at 23mpg on e85, not too bad

Grymm86 · 04-13-2014, 10:20 AM

just filled up after my first E85 tank. 1.5 gal of 93 was left. was light on the throttle for the first 50 or so. anyway i averaged about 22mpgs for the first tank

Reaper · 04-15-2014, 10:12 PM

I'm turbod on e85 with ecutek and my mpg is about as accurate as it was stock. But I am getting 22 at best on the freeway. Goes to 3mpg while in boost. Oops.

Sent from my SAMSUNG-SGH-I747 using Tapatalk

NyC Zn6 · 04-15-2014, 10:31 PM

All stock except for a drop in filter ..on pump 93 octane I average about 24mpg and on e85 I get 20.8 lol...im never going back to 93 though the e85 power is amazing lol.

continuecrushing · 04-21-2014, 02:46 AM

Yup, at 24mpg(actual, calculated by me) with e85 and oft tune

1086 · 04-21-2014, 03:15 AM

On a full tank of E85 I typically fill up every ~200-230 miles give or take how I have been driving on that tank. (I have filled up at only 150 miles driven before too lol) This is of course around the time when the 'gas' light icon shows up - so every ~11.2 gallons gives me ~200-230 driving miles.

Grymm86 · 04-21-2014, 08:35 PM

last tank i was at 20.5 worth it

Luckrider · 04-21-2014, 11:40 PM

As a Jeep owner, those numbers don't scare me

shif7i7down · 04-25-2014, 10:36 AM

Does anyone know if the oft would work well with a flex fuel kit.

I.e, will it be able to adjust for ethanol content

EAGLE5 · 04-25-2014, 10:43 AM

Quote:

Originally Posted by shif7i7down

Does anyone know if the oft would work well with a flex fuel kit.

I.e, will it be able to adjust for ethanol content

Somebody will need to alter programming in the stock rom to hijack a sensor in order for the oft, brzedit, and EcuFlash tunes to get flex fuel. Ecutek already does this, but their prices are ridonk. Flexfuel really isn't worth it or necessary until you go fi.

I have not heard of anyone working on this yet.

Sportsguy83 · 04-25-2014, 10:51 AM

Quote:

Originally Posted by shif7i7down

Does anyone know if the oft would work well with a flex fuel kit.

I.e, will it be able to adjust for ethanol content

Quote:

Originally Posted by jsimon7777

Somebody will need to alter programming in the stock rom to hijack a sensor in order for the oft, brzedit, and EcuFlash tunes to get flex fuel. Ecutek already does this, but their prices are ridonk. Flexfuel really isn't worth it or necessary until you go fi.

I have not heard of anyone working on this yet.

Not only hijacking a sensor is needed, that can be done easily. The problem is being able to create a custom map. Hats off to Ecutek for creating them inside a tiny tiny blank portion of memory available on the stock ecu

04-11-2014, 06:28 PM	#1
Tromatic Banned Join Date: May 2013 Drives: FR-S Location: Portland, OR Posts: 2,232 Thanks: 61 Thanked 1,728 Times in 786 Posts Mentioned: 19 Post(s) Tagged: 0 Thread(s)	OFT E85 tune and mileage.... Stock car other than TRD filter. I got 18 whole miles to the gallon of booze on the last tank, although the car is faithfully reporting almost 26 mpg. By doing the math, I've never gotten better than 25 on regular gas, either. Some sacrifices must be made, I guess!

04-15-2014, 10:12 PM	#6
Reaper in orbe terrum non visi Join Date: Jan 2014 Drives: violent Location: Mountains Posts: 1,747 Thanks: 279 Thanked 762 Times in 446 Posts Mentioned: 62 Post(s) Tagged: 1 Thread(s)	I'm turbod on e85 with ecutek and my mpg is about as accurate as it was stock. But I am getting 22 at best on the freeway. Goes to 3mpg while in boost. Oops. Sent from my SAMSUNG-SGH-I747 using Tapatalk __________________ I have E85 where there isn't E85, that's my secret. http://www.ft86club.com/forums/showt...t=reaper+build

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04-11-2014, 06:35 PM	#2
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,293 Times in 1,180 Posts Mentioned: 313 Post(s) Tagged: 4 Thread(s)	This is because oft uses the injector scaler to compensate for e85's fueling requirements. The ecu doesn't know that it's injecting more fuel, since requested fuel volume doesn't change. Normally with flex fuel you'd compensate requested volume against the ECA which allows the gas mileage calculation to function properly.

04-13-2014, 07:10 AM	#4
86viper Member Join Date: Nov 2013 Drives: 2013 Toyota 86 GTS Location: Australia Posts: 76 Thanks: 2 Thanked 30 Times in 22 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	im at 23mpg on e85, not too bad

04-15-2014, 10:31 PM	#7
NyC Zn6 Senior Member Join Date: Apr 2013 Drives: 10 Series #974 6m/t Location: NYC Posts: 1,956 Thanks: 1,358 Thanked 1,141 Times in 669 Posts Mentioned: 6 Post(s) Tagged: 2 Thread(s)	All stock except for a drop in filter ..on pump 93 octane I average about 24mpg and on e85 I get 20.8 lol...im never going back to 93 though the e85 power is amazing lol.

04-21-2014, 02:46 AM	#8
continuecrushing Join Date: Mar 2013 Drives: 2013 Firestorm FRS Location: Lake Elsinore, CA Posts: 2,707 Thanks: 1,231 Thanked 2,144 Times in 1,003 Posts Mentioned: 73 Post(s) Tagged: 2 Thread(s)	Yup, at 24mpg(actual, calculated by me) with e85 and oft tune

04-21-2014, 03:15 AM	#9
1086 Senior Member Join Date: Nov 2013 Drives: UM86 - 6MT Location: CA (elevation 85 ft.) Posts: 518 Thanks: 383 Thanked 249 Times in 126 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	On a full tank of E85 I typically fill up every ~200-230 miles give or take how I have been driving on that tank. (I have filled up at only 150 miles driven before too lol) This is of course around the time when the 'gas' light icon shows up - so every ~11.2 gallons gives me ~200-230 driving miles.

04-25-2014, 10:36 AM	#12
shif7i7down Erected Member Join Date: Mar 2014 Drives: frs Location: Wisconsin Posts: 391 Thanks: 69 Thanked 185 Times in 100 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	Does anyone know if the oft would work well with a flex fuel kit. I.e, will it be able to adjust for ethanol content

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