E-85 vs 91-93 for turbo - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

gdrider77 · 02-14-2013, 10:53 AM

So just wondering guys, I am debating on the e-85 upgrade. Pros, cons, etc...Any links/articles to really understand the difference? E-85 is available here, so i can totally do it, but just want o make sure its the right decision.

If i can do E-85 is it just a no brainer? what is the science behind it. Is it only a turbo thing, or would all cars benefit from the e-85

Thanks for any input....

Unleashed · 02-14-2013, 11:02 AM

http://lmgtfy.com/?q=What+are+the+pros+and+cons+of+E85

Opposed · 02-14-2013, 11:07 AM

Most cars can do it with upgraded fuel components and a tune. Our cars do benefit quite a bit, especially on a turbo application. I know Fullblown's kit can make another 50+ whp with E85. Downside will be overall fuel milage will decrease. Some N/A guys running E85 are averaging around 17-22 mpg's.

Unleashed · 02-14-2013, 11:13 AM

Quote:

Originally Posted by Opposed

Most cars can do it with upgraded fuel components and a tune. Our cars do benefit quite a bit, especially on a turbo application. I know Fullblown's kit can make another 50+ whp with E85. Downside will be overall fuel milage will decrease. Some N/A guys running E85 are averaging around 17-22 mpg's.

What he said. Some people say that is can clog your fuel injectors, erode your fuel lines, and cause other fuel system related issues but subaru motors and our fuel system seem to be handling it just fine. The fuel mileage will suffer slightly but the biggest cause of fuel mileage loss is a lead foot haha.

jdzumwalt · 02-14-2013, 11:49 AM

Quote:

Originally Posted by Unleashed

What he said. Some people say that is can clog your fuel injectors, erode your fuel lines, and cause other fuel system related issues but subaru motors and our fuel system seem to be handling it just fine. The fuel mileage will suffer slightly but the biggest cause of fuel mileage loss is a lead foot haha.

There is really no issue with clogging ect our car use modern era injectors no issues here.

fred_boosted · 02-14-2013, 11:56 AM

You can run e85. But you need upgrade your fuel pump, injectors. In some point, you will need a stronger engine internal.

Tansey86 · 02-14-2013, 11:58 AM

You just don't want the car to sit too long with e85, especially when cold.

Opposed · 02-14-2013, 12:28 PM

Quote:

Originally Posted by fred_boosted

You can run e85. But you need upgrade your fuel pump, injectors. In some point, you will need a stronger engine internal.

Only with force induction. You can run E85 in our cars N/A on stock fuel system.

fred_boosted · 02-19-2013, 11:28 AM

Quote:

Originally Posted by Opposed

Only with force induction. You can run E85 in our cars N/A on stock fuel system.

Right.

But for N/A motor, the thing is we don't know E-85 will cause damage to stock fuel system or not, for example: fuel pump, fuel line.

Opposed · 02-19-2013, 12:02 PM

Quote:

Originally Posted by fred_boosted

Right.

But for N/A motor, the thing is we don't know E-85 will cause damage to stock fuel system or not, for example: fuel pump, fuel line.

Correct. However, many late model Subaru's have been running E85 on their stock fuel systems for years without any trouble. And I know some shops have checked out our fuel system and said it should be fine, but of course we don't have any documentation of that. But you are correct, only time will tell on the FA.

reeves · 02-19-2013, 01:58 PM

Quote:

Originally Posted by Opposed

Correct. However, many late model Subaru's have been running E85 on their stock fuel systems for years without any trouble. And I know some shops have checked out our fuel system and said it should be fine, but of course we don't have any documentation of that. But you are correct, only time will tell on the FA.

What about the the need to run colder spark plugs with E85? Is pre-ignition something to worry about when using E85? Just wondering if this is something that's come up for people who've switched to E85.

Opposed · 02-19-2013, 03:06 PM

Quote:

Originally Posted by reeves

What about the the need to run colder spark plugs with E85? Is pre-ignition something to worry about when using E85? Just wondering if this is something that's come up for people who've switched to E85.

Nope. Stock plugs are pretty cold, so there has been no issues that I have ever seen with E85 or when boosted.

Kochinopride · 02-19-2013, 03:08 PM

Only issue I had running E85 was cold starting, sometimes it took more than one crank to get the car running, not such a big deal for me - but should be noted.

illmatic · 02-19-2013, 03:57 PM

http://forums.nasioc.com/forums/showthread.php?t=803341

02-14-2013, 10:53 AM	#1
gdrider77 Senior Member Join Date: Oct 2012 Drives: Subaru BRZ Limited Location: Denver, CO Posts: 623 Thanks: 243 Thanked 263 Times in 157 Posts Mentioned: 19 Post(s) Tagged: 2 Thread(s)	E-85 vs 91-93 for turbo So just wondering guys, I am debating on the e-85 upgrade. Pros, cons, etc...Any links/articles to really understand the difference? E-85 is available here, so i can totally do it, but just want o make sure its the right decision. If i can do E-85 is it just a no brainer? what is the science behind it. Is it only a turbo thing, or would all cars benefit from the e-85 Thanks for any input.... __________________

02-14-2013, 11:07 AM	#3
Opposed Senior Member Join Date: Jun 2012 Drives: 2013 Asphalt FR-S Location: Bloomington, MN Posts: 1,156 Thanks: 499 Thanked 447 Times in 294 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Most cars can do it with upgraded fuel components and a tune. Our cars do benefit quite a bit, especially on a turbo application. I know Fullblown's kit can make another 50+ whp with E85. Downside will be overall fuel milage will decrease. Some N/A guys running E85 are averaging around 17-22 mpg's. __________________ Asphalt FR-S: EcuTek Visconti STG2 tune, MAPerformance turbo kit, MAPerformance 3" exhaust, Hotchkis springs, Mach-V 17x9 Awesomes. Build thread: http://www.ft86club.com/forums/showthread.php?t=30703

02-14-2013, 11:56 AM	#6
fred_boosted Senior Member Join Date: Oct 2011 Drives: 2008 EVO X GSR (Sold) Location: USA Posts: 100 Thanks: 8 Thanked 4 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	You can run e85. But you need upgrade your fuel pump, injectors. In some point, you will need a stronger engine internal. __________________ I could get Maserati Quattroporte or BMW M3/M6. But I gived up. Why? Because thats just not my style.

02-19-2013, 03:08 PM	#13
Kochinopride Senior Member Join Date: Aug 2012 Drives: 13 FR-S, 12 CLS AMG, 05 Lotus Elise Location: Edgewater, NJ Posts: 532 Thanks: 103 Thanked 143 Times in 103 Posts Mentioned: 18 Post(s) Tagged: 0 Thread(s)	Only issue I had running E85 was cold starting, sometimes it took more than one crank to get the car running, not such a big deal for me - but should be noted. __________________ 2005 Lotus Elise 2012 Mercedes Benz CLS AMG 6.3 2013 Scion FR-S 2011 Land Rover LR4 2013 Lamborghini Gallardo LP570-4 Superleggera

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02-14-2013, 11:02 AM	#2
Unleashed Senior Member Join Date: Jun 2012 Drives: 13' WRX Location: Las Vegas Posts: 673 Thanks: 183 Thanked 173 Times in 111 Posts Mentioned: 20 Post(s) Tagged: 1 Thread(s)	http://lmgtfy.com/?q=What+are+the+pros+and+cons+of+E85

02-14-2013, 11:58 AM	#7
Tansey86 Senior Member Join Date: Sep 2012 Drives: 2003 Subaru Outback Location: Long Island, NY Posts: 1,318 Thanks: 154 Thanked 528 Times in 300 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	You just don't want the car to sit too long with e85, especially when cold.

02-19-2013, 03:57 PM	#14
illmatic Senior Member Join Date: Oct 2011 Drives: BRZ Limited 6MT, 02 AW, 03PSM WRX Location: United States Posts: 347 Thanks: 511 Thanked 153 Times in 63 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	http://forums.nasioc.com/forums/showthread.php?t=803341

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