Is E85 Really Worth It?

[LSchicago]

E85 is not a cold weather start fan... it make take a couple tries... after that, you are good to go...

Plus winter E85 is usually only 50-70%. I usually swap to 93 for my winter starts.

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[vanquishvzla]

Plus winter E85 is usually only 50-70%. I usually swap to 93 for my winter starts.

Winters here in FL are a joke... Christmas day can be a sunny 75 degrees lol

 

[NoahsArk117]

on a gen2 you are ok is you are running your stock intake manifold, if you upgrade to +18, gt350, etc, you need bigger injectors.. that's why i needed the 47 lb ones. You don't need anything else.

Do you think it would be a safe bet for peace of mind to just upgrade to the 47lb injectors even with the stock intake manifold?

 

[LSchicago]

Winters here in FL are a joke... Christmas day can be a sunny 75 degrees lol

Not quite as consistently warm as Hawaii. Florida does have it's cold days.

 

[Balr14]

A friend has a supercharged Camaro SS running E85. The switch to E85 cost him about 1 - 2 mpg when driven "normally". E85 is about a dollar per gallon cheaper than premium around here.

 

[Semp1]

I would say it’s worth it until you get a bad batch. Then it’s boom to the engine. So power adder wise yes. Otherwise stick with 93. It’s way more consistent.

 

[vanquishvzla]

Do you think it would be a safe bet for peace of mind to just upgrade to the 47lb injectors even with the stock intake manifold?

You don't need to.... but IF you do, you know you can always upgrade your intake manifold and and won't need injectors lol

 

[vanquishvzla]

Not quite as consistently warm as Hawaii. Florida does have it's cold days.

probably 2 weeks out of 52... and it's not cold cold like up north

 

[Robert3487]

When I did all my mods I wasn't really feeling a huge increase in power. My first mods were jlt intake, 18 manifold and 91 tune with axle-backs. I switched to e85 and upgraded my injectors and I thought it would be a huge difference and again I didn't 'feel' much gain in power. Once my headers went on thats when I noticed the increase in power, i'm guessing its a full combination of all the mods that i'm feeling but from upgrade to upgrade I wouldn't expect to feel much. Dyno numbers will show power increases for each mod but maybe my butt dyno is broken lol.

 

[LSchicago]

probably 2 weeks out of 52... and it's not cold cold like up north

Being cold up north has it's advantages. It bought my supercharger this year.

 

[TnWHTMARE]

Yes. I've ran corn on my 18 GT A10, my 19SS A10 and now my 20 GT 6sp. I don't run pump gas unless absolutely necessary. Talk about inconsistent. It was next to impossible to not get knock retard on the best 93 around here. Logs were always garbage. Switched to corn 4 years ago and haven't looked back. No knock, more power, cleaner and cheaper by the gallon.

I do think I noticed the power increase in the lower RPM's on the A10 more so than on my 6sp. But that's just SOTP.

 

[NoahsArk117]

I would say it’s worth it until you get a bad batch. Then it’s boom to the engine. So power adder wise yes. Otherwise stick with 93. It’s way more consistent.

Is it really this risky running E85? The risk reward ratio doesn't really make sense given how many people run it.

 

[TnWHTMARE]

Is it really this risky running E85? The risk reward ratio doesn't really make sense given how many people run it.

Basically you have 2 kinds of tunes, with Lund anyway (for now). You have a dedicated E85 tune and a flex tune. The dedicated E85 tune will require 75% to run properly. The flex tune allows the PCM to adjust to the percentage of E. Technically the Flex is suppose to be a transition tune from pump to dedicated E85 but you can run it all the time if you want.

The only "risk" is running a dedicated E85 tune with less ethanol percentage than mandated by the tuner. I dont know that if you run 60% on a dedicated E85 tune, that you will necessarily go "boom". You actually begin to run rich when you run less E on a dedicated E85 tune. Ideally you want to check the percentage when you fill up just to make sure but my pump has always been solid and I dont rag on my car much, so I usually just roll and check on the occasion. Its worked fine for me for 4 years.

Someone please fact check me here if I am missing something.

 

[LSchicago]

Basically you have 2 kinds of tunes, with Lund anyway (for now). You have a dedicated E85 tune and a flex tune. The dedicated E85 tune will require 75% to run properly. The flex tune allows the PCM to adjust to the percentage of E. Technically the Flex is suppose to be a transition tune from pump to dedicated E85 but you can run it all the time if you want.

The only "risk" is running a dedicated E85 tune with less ethanol percentage than mandated by the tuner. I dont know that if you run 60% on a dedicated E85 tune, that you will necessarily go "boom". You actually begin to run rich when you run less E on a dedicated E85 tune. Ideally you want to check the percentage when you fill up just to make sure but my pump has always been solid and I dont rag on my car much, so I usually just roll and check on the occasion. Its worked fine for me for 4 years.

Someone please fact check me here if I am missing something.

I have a good station near me. This fill up tested at 89%. Never less than 75% through fall.

 

[WildHorse]

if it's easily accessible. Which for me it's only by the drum. So I just run octanium with 91 octane gas on special occasions.

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