What does it take to go E85? Advantages/Disadvantages?

figgie

Supramania Contributor
Mar 30, 2005
5,225
16
38
50
Twin Cities, Minnesot-ah
eraezer;1813872 said:
Yes they do. Look it up.

nevermind then, keep living in your dreamworld.
I've seen the results so I don't need to prove anything. At least here in Sweden, we do know what happens if you run an engine on E85 without protecting it.

But feel free to amuse me with your proof of that all you need to do to run E85 is to compensate for the extra fuel needed.

Don't need to. You are the one pandering that E85 breaks things so the burden of proof lies on you to actually prove that it infact "breaks" things. You can not prove a negative (ie Proof that it does "not" break things). ;) I am sure all the people running E85/E100 would love to peer review what you present.

Just for curiosity sake.

I took the liberty to go to both Saab.com and Volvo.com along with google history. Saab had the 9-5 BioPower back in 2005-2006 which coincidentaly, was in your home country. They mentioned way back in 2007 that the 9-3 would play catch up but that did not happen until 2008. Volvo had the S40, V50 and c30 around the same time in Sweden and then expanded to the rest of EU.

I find it quite intresting that for the FFV vehicles having so much supposed trouble, you guys have one of the largest FFV fleets in EU!

here is some more trivia for you.

To run E85 and only E85 in the supra. The injector sizing needs to be increased to 550cc/min and that is all. No need to upgrade AFM. Fuel pump yes just to keep the pressure up.
 

eraezer

Member
Nov 6, 2008
851
9
18
Stockholm, Sweden
Most FFV's does not run on E85 and those who do end up with troubles.

You do what you want with your cars but at least stop telling people that all they need to do is up the fuel system.
 

figgie

Supramania Contributor
Mar 30, 2005
5,225
16
38
50
Twin Cities, Minnesot-ah
eraezer;1813969 said:
Most FFV's does not run on E85 and those who do end up with troubles.

You do what you want with your cars but at least stop telling people that all they need to do is up the fuel system.

what????

FFV = Flexible Fuel Vehicle.

Meaning it can run on Gasoline all the way to E85 or any cmination in between. That is what the Flexfuel sensor is for?

Ok, now I am curious.

Why exactly do FFV which are designed to run e85, end up with trouble if they do run E85?

I am going to keep telling them that they can up the fuel system and that is it.
 

toyotanos

What will we break today?
Staff member
Super Moderator
Nov 29, 2008
2,841
2
38
Coon Rapids, MN
I'll just leave this here, never mind my real world experience :p

http://www.youtube.com/watch?v=1j-35_jpdVw


There are plenty of peformance shops running E70-E-98 on stock fuel systems here in the US with the exception of adding more flow capacity to the system via bigger pumps and injectors.




It may be different for cars in non-US countries, since the US has had Ethanol in all unleaded fuel (aka Gasohol) for quite some time now.
 

Crypton2006

New Member
Jun 26, 2006
294
0
0
Phoenix Az
toyotanos;1813971 said:
I'll just leave this here, never mind my real world experience :p

http://www.youtube.com/watch?v=1j-35_jpdVw


There are plenty of peformance shops running E70-E-98 on stock fuel systems here in the US with the exception of adding more flow capacity to the system via bigger pumps and injectors.




It may be different for cars in non-US countries, since the US has had Ethanol in all unleaded fuel (aka Gasohol) for quite some time now.


+1
 

Turbo Habanero

New Member
Apr 28, 2009
4,229
0
0
36
Tucson,AZ
so do you guys think it is safe to run e85 with just a better fuel pump and the right injectors and something to tune like maft pro ?
 

figgie

Supramania Contributor
Mar 30, 2005
5,225
16
38
50
Twin Cities, Minnesot-ah
Turbo Habanero;1814249 said:
so do you guys think it is safe to run e85 with just a better fuel pump and the right injectors and something to tune like maft pro ?

well it depends.

You can...as long as you stick to E85 EXCLUSIVELY.

Otherwise the way to go is Flexfuel sensor and an EMS that accepts that sensor output to adjust Ignition timimg and Injection PW% based on E%.
 

eraezer

Member
Nov 6, 2008
851
9
18
Stockholm, Sweden
figgie;1813970 said:
what????

FFV = Flexible Fuel Vehicle.

Meaning it can run on Gasoline all the way to E85 or any cmination in between. That is what the Flexfuel sensor is for?

Ok, now I am curious.

Why exactly do FFV which are designed to run e85, end up with trouble if they do run E85?

I am going to keep telling them that they can up the fuel system and that is it.

Yes, they have a flexfuel sensor. The majority drive their car on gasoline instead due to hardware failure which is a result of using E85 without extra work.
Extra work = doing more than specified service and running on gasoline every now and then.

Show me some proof of a manufacturer guaranteeing compatibility with E85. Not just "it can run on E85". Just somewhere where they use guarantee and E85 in the same sentence.

Atl east it's not my motor getting damaged by your words.
 

eraezer

Member
Nov 6, 2008
851
9
18
Stockholm, Sweden
Turbo Habanero;1814249 said:
so do you guys think it is safe to run e85 with just a better fuel pump and the right injectors and something to tune like maft pro ?

What are your fuel lines made out of? If it's hardlines you need either steel or stainless steel. If it's hoses you need teflonhoses.
If you use rubber hoses anywhere you need to replace them on a regular basis.

Is your fuel rail stock or an aftermarket piece made out of aluminium? Have it anodized on the inside.

I'm guessing that your fuel tank is stock? Then it should be fine.

Shorten your oil changing intervals to about half or something like that.

Fill up with gasoline at least once a season. So that you flush out the system with gasoline.

Make sure that the injectors can handle E85.
 

figgie

Supramania Contributor
Mar 30, 2005
5,225
16
38
50
Twin Cities, Minnesot-ah
eraezer;1815723 said:
Yes, they have a flexfuel sensor. The majority drive their car on gasoline instead due to hardware failure which is a result of using E85 without extra work.
Extra work = doing more than specified service and running on gasoline every now and then.

Show me some proof of a manufacturer guaranteeing compatibility with E85. Not just "it can run on E85". Just somewhere where they use guarantee and E85 in the same sentence.

Atl east it's not my motor getting damaged by your words.

Proof? look up there new car warranty even on FFV in EU. They have "X miles/Y years". Not "X Miles/Y years only on gasoline, E85 voids warranty". lol.

Or John Reed's, Or X-Man, or or or. And they do run E85. Some for quite some time in lots of different cars to include nice "italian" rides ;)
 

Typhoon

New Member
Jun 30, 2007
208
0
0
53
ACT
Oh no. I ran E85 in a 1990 Volvo 740 Turbo for over two years as a daily driver and all I did was put in larger injectors and use the performance ECU chips the car already had. It sure sucked that I could run 16psi on the stock turbo all day (for around 200-220hp out of a 2.3 litre four cyl), every day and had absolutely no fuel system problems. At all. Ever.
As a matter of fact, my 7MGE is undergoing E85ification at the moment. I expect to do nothing more than an adjustable fuel pressure regulator and tweak the airflow meter for a slightly richer mixture.
 

Mr Bojangles

New Member
Feb 9, 2009
268
0
0
Madison, WI
There is so much bad info in this thread.

There is some good info as well, if you plan on running E85 please do not use this thread as a reason to use it or not to use it.

Also comparing E85 to pump gas for price and mileage is pointless. You should be comparing it to C16 or other race fuels because that is the level of performance you get from a properly tuned car with E85.
 

MNBmk3T

New Member
Aug 2, 2011
217
0
0
Burnaby, BC
At least you guys GET E85. Up here in Canada, we can only dream of having such a fuel. *sigh* I GUESS I can stick with 94 octane for now.
 

Typhoon

New Member
Jun 30, 2007
208
0
0
53
ACT
Actually, you should compare E85 to premium fuel at the pump. I am saving a lot of money running E85, it's about 30c/litre cheaper at my location.
Ran the 7MGE Supra again today on E85, running faultlessly, but still really need to increase fuel pressure. I'm just staying below full throttle until I do. No signs of leaning out except very slightly when cold and under reasonable load, so I'd say just an increase in fuel pressure will cover it.
No cold start issues with an entirely stock 7MGE either, just turned the key and it started and settled into a nice idle....at 0c.
I REALLY like how E85 immediately starts to clean the exhaust out when you start using it too.
 

tlo86

Ninja Editor 'Since 05'
Jul 24, 2005
3,914
0
0
38
Colorado
for the lines you can easily make your own steel / nylon combos. the hardest part is finding a fitting that goes from your standard brake line to a fuel filter =D
 

Mr Bojangles

New Member
Feb 9, 2009
268
0
0
Madison, WI
Typhoon;1869875 said:
Actually, you should compare E85 to premium fuel at the pump.

Not even close. You can run a lot more timing and boost on E 85 than you ever could on 93 because it has a substantially lower chance of detonation.
 

tlo86

Ninja Editor 'Since 05'
Jul 24, 2005
3,914
0
0
38
Colorado
hrm i wonder if it would be worth putting a fuel/water seperator in with e85. or does that make more sense with marine/diesel applications

i do see teflon used a lot in conversions but what have people thought about nylon ~ worlds cheaper and used in many domestic flex fuel vehicles. they do have those special fittings but can easily be bypassed
 
Last edited: