Sponsored

E85 tune... is it worth it?

Stephen@lethal

Well-Known Member
Joined
Aug 8, 2019
Threads
340
Messages
1,000
Reaction score
450
Location
Florida
First Name
Steve
Vehicle(s)
2020 Mustang Gt500
E85 is 100% worth it if you have it in your area. It is particularly beneficial to those with boosted applications as the detonation protection is quite a bit better with the extra heat. I wouldn't hesitate to throw E85 even on a bolt on car however as Coyote cars do respond well to it. If you have any questions about tuning or E85/octane, feel free to shoot me a message anytime. We are having some sales right now for Black Friday and you wouldn't find a better time to jump on the E85 train. Lethalperformance.com
Sponsored

 

stars_fan

Well-Known Member
Joined
Feb 14, 2022
Threads
0
Messages
74
Reaction score
47
Location
DFW
First Name
Nick
Vehicle(s)
21 GT PP1, 20 Tesla M3P & 21 Ducati SFV4S
Just tuned mine for 93 and then loaded the flex tune. E85 is better and I would do it again no question.
 

ChitownStang

Well-Known Member
Joined
Mar 9, 2015
Threads
72
Messages
2,786
Reaction score
3,236
Location
Chicago, North Shore
Vehicle(s)
2021 Mach 1
Vehicle Showcase
1
Just tuned mine for 93 and then loaded the flex tune. E85 is better and I would do it again no question.
That’s great to hear! Who’s tunes did you go with?
 

beefcake

Well-Known Member
Diamond Sponsor
Joined
Oct 18, 2014
Threads
1,416
Messages
12,181
Reaction score
4,661
Location
Bethel
Vehicle(s)
2018 Ford Mustang

Sponsored

cahouston

Well-Known Member
Joined
Dec 24, 2019
Threads
19
Messages
449
Reaction score
499
Location
Houston
First Name
Chris
Vehicle(s)
2019 Mustang GT A10 Premium
Vehicle Showcase
1
The e85 tune has been a blast so far. The low end increases have made traction a challenge (275/40r19 Nitto 555r2) but the smile factor at WOT is significant! I'm hoping to shoot for 11.0XX next month at a local track event.

I had it on the Dyno today.

PXL_20221117_220313434~2.jpg


Screenshot_20221117-200508~2.png
 

Racinjason65

Well-Known Member
Joined
Apr 6, 2021
Threads
27
Messages
391
Reaction score
435
Location
Huntington Beach
First Name
Jason
Vehicle(s)
2020 Mustang GT Premium PP1M-82
I'm not looking for more performance and I don't drive a lot... 2500 miles a year. But E85 is $1.50 a gallon cheaper than premium. So, I'm wondering if it's worth the expense to swap over? I have heard it just requires a tune, but that seems a little too easy.
All you need to run E85 is a tune, and there is a good performance increase but there are a couple drawbacks that you should be aware of. First, you’ll get about 30% less miles per gallon, starting the engine when it’s cold out can take a few more seconds of cranking and you stated that you only drive about 2.5k miles per year, e85 absorbs moisture out of the air and doesn’t store as long as gasoline, so if your car sits for weeks at a time or has the same fuel in it for several weeks at a time, e85 may not be the best choice for you.
 

K4fxd

Well-Known Member
Joined
Apr 2, 2020
Threads
102
Messages
10,361
Reaction score
8,495
Location
NKY
First Name
Dan
Vehicle(s)
2017 gt, 2002 FXDWG, 2008 C6,
Check out the latest edition of engine masters. They tested E85 (errr E70 and E 50 and E14) on a LS engine.

Interesting to say the least and matches what I have found on the drag strip with my 17 GT.
 

RagmopInKona

Banned
Banned
Banned
Joined
May 4, 2022
Threads
39
Messages
1,939
Reaction score
1,712
Location
CEO
Vehicle(s)
2020 Mustang HHP
I meant paying $5 a gallon for gas is a ripoff. Your tuner module appears to be on back order.
You are driving a convert. and at 79y/o most likely not going after every last ouch of power out of it.
E85 you'll save a little at the pump. but at 2500 miles a year, you are not saving much. After paying for the tune.
You are also going to take a hit on resale. As the buyer pool looking at a convert. is not going to buy the swap to e85 was to save 10 bucks a tank , they are going to like it or not, hear, modd'd mustang that = road hard and put away wet.
Other thing to think about is can you get the fuel everywhere you roam?
Will you be driving it enough that the ethanol doesn't evap. and that e85 is e70 left in the tank.
If you were putting 8k+ on it a year, and it was a given that pump gas was going to stay high. I could see it. but at about 125-130 gallons of fuel per year(2500~20mpg highway/city combined). you are not saving much.
 

Golgo69

Well-Known Member
Joined
Dec 11, 2021
Threads
7
Messages
177
Reaction score
70
Location
Maryland
First Name
Herb
Vehicle(s)
2019 BULLITT
All you need to run E85 is a tune, and there is a good performance increase but there are a couple drawbacks that you should be aware of. First, you’ll get about 30% less miles per gallon, starting the engine when it’s cold out can take a few more seconds of cranking and you stated that you only drive about 2.5k miles per year, e85 absorbs moisture out of the air and doesn’t store as long as gasoline, so if your car sits for weeks at a time or has the same fuel in it for several weeks at a time, e85 may not be the best choice for you.
well said. I have two tunes so I don't have to deal with the winter headaches of long starts and everything else. My BULLITT is a "sometimes weekend car".
 

Sponsored

ChitownStang

Well-Known Member
Joined
Mar 9, 2015
Threads
72
Messages
2,786
Reaction score
3,236
Location
Chicago, North Shore
Vehicle(s)
2021 Mach 1
Vehicle Showcase
1
I just loaded the Livernois 93 tune on my Mach 1 last week and I have the flex ready to try but I may just wait till next year if it’s that big of a pain in the cold.
Had no idea
Probably best as I couldn’t hook up any more power on the cold pavement… lol
 

Golgo69

Well-Known Member
Joined
Dec 11, 2021
Threads
7
Messages
177
Reaction score
70
Location
Maryland
First Name
Herb
Vehicle(s)
2019 BULLITT
I just loaded the Livernois 93 tune on my Mach 1 last week and I have the flex ready to try but I may just wait till next year if it’s that big of a pain in the cold.
Had no idea
Probably best as I couldn’t hook up any more power on the cold pavement… lol
Same here. Just switched from E85 tune to 93 octane for the winter.
 

Livernois Motorsports

Well-Known Member
Diamond Sponsor
Joined
Oct 25, 2014
Threads
226
Messages
2,801
Reaction score
950
Location
Dearborn Heights, Michigan
Website
www.livernoismotorsports.com
First Name
S550 HQ
Vehicle(s)
2016 Mustang GT (TVS 2650) (6R80)
I just loaded the Livernois 93 tune on my Mach 1 last week and I have the flex ready to try but I may just wait till next year if it’s that big of a pain in the cold.
Had no idea
Probably best as I couldn’t hook up any more power on the cold pavement… lol
We have people here in mi run the flex tune year round and have not had issues with it running or starting, id says to run it, but you'll never wanna go back to 93 after you try ethanol!
 

K4fxd

Well-Known Member
Joined
Apr 2, 2020
Threads
102
Messages
10,361
Reaction score
8,495
Location
NKY
First Name
Dan
Vehicle(s)
2017 gt, 2002 FXDWG, 2008 C6,
but you'll never wanna go back to 93 after you try ethanol!
Only if it is readily available. We lost 3 pumps close to me and now it is not worth the 20 min drive to get it. Also this last pump is labeled "Flex" where the others were labeled "E85"
 

Livernois Motorsports

Well-Known Member
Diamond Sponsor
Joined
Oct 25, 2014
Threads
226
Messages
2,801
Reaction score
950
Location
Dearborn Heights, Michigan
Website
www.livernoismotorsports.com
First Name
S550 HQ
Vehicle(s)
2016 Mustang GT (TVS 2650) (6R80)
Only if it is readily available. We lost 3 pumps close to me and now it is not worth the 20 min drive to get it. Also this last pump is labeled "Flex" where the others were labeled "E85"
We are a little spoiled up here in MI, almost every station near me has a flex fuel pump and they usually stay around the e 70-e80 range. The cool thing about our tune is it's a true Flex tune so you can fill it up and not have to think about it.
Sponsored

 
 




Top