e-85 fuel?

[Hot 6t Falcon]

Hi Guys,

What do we know about how to use e-85 in a carburetor engine? Back in the day when I raced gokarts, we could run alcohol (methanol), but you just bought a alky carb and upped the spark advance to the end of the slots, and it ran.

e-85 is 85% ethanol and 15% gasoline. It has an octane of 100 to 105. And best of all we grow it in our corn fields - we don't pay the stinking aaa-rabs a stinking cent.

So, I'm athinking that I'd need to richen the main jets about 20% and run four or five degrees more spark. What do you think? With that octane rating, it would be good to run a 10.5 to 1 compression, but I just want to concentrate on the carb and the ignition.

In Idaho, where my brother is, it is hard to even find gas-a-hol (10% ethanol and 90% gas. Here in ND and MN EVERY station is required to have gas-a-hol, but they are just starting to carry e-85.

Check out this web site.
.http://www.al-corn.com/faq/e85.asp

As if I didn't have enough projects

 

[rbohm]

8) as i recall to run straight alcohol you have to almost double the jet size, so i would say you need to bump the jet size up by 60%. everything else would be as if you were going to run straight alcohol, metal needle in the carb,etc.

 

[simon]

the FAQ found with the link above is way too superficial for my taste.

just a lot of "pro´s", and the few remaining "con´s" are easily put down by the advice of reading some sticker on your vehicle´s fuel door and flush a gasoline-only fuel system with gasoline after unintended fueling with e85 :roll:

off to google for some information... I´d be concerned about the corrosion behavior of alcohols. We all know that methanol ( CH3 OH ) is reported to be highly corrosive to carb bodies, but I don´t know anything about the possible corrosivity of ethanol ( CH3 Ch2 OH ), if there is any at all.

 

[CobraSix]

I thought E-85 was 85%gasoline, 15% ethanol...

SLade

 

[pedal2themetal45]

HAY HOT 6T FALCON
I live in Idaho and I run ethanol all the time. Tell you Bro he should be able to find it at all Stinkers and Sinclair stations At 10%.
tim

 

[Hot 6t Falcon]

Thanks for the 60%.. I'm going to ask some of the OLD dirt trackers that ran methanol.

You're right about the site being very Pro.

CobraSix, goto the site in my original message. Gas-a-hol is either 10% or 15% ethanol and the rest gas. e-85 is 85% alcohol.

Yup he drives about three miles north of Idaho Falls to a Stinker to get 10%.

Thanks

 

[CobraSix]

Ahhh...

sorry, didn't see the site.

Slade