E85 fuel

[Anonymous-0]

Jd g 816 cubes i was thinking of using E85 with a mix of regular fuel what determines if i can use this? I currently use turbo blue but it is pricey. What do i have to do to convert or adjustments? Do you get more hp on E85 any side effects? I run under 1300 rpms

 

[Gearnut]

E85 (85% alcohol) has less energy per unit measure than gasoline. The more E85 you mix with gasoline, the more you will need to burn to get the same amount of energy out... meaning, you will need to increase your jet size. Also, Alcohol burns at a much fatter fuel-to-air ratio than gasoline. That is the other reason you need to increase jet size. A couple guys in a local pulling club converted their tractors to Alcohol with what I would call moderate success.

The advantage of E85 is it's anti-knock characteristics. You may be able to run more timing lead. This may, or may not, give you more power.

Same is true for high Octane gasoline. Turbo Blue has less energy than regular gasoline because it has a higher percentage of Octane and lower percentage of Heptane. (Octane has less energy per unit measure than Heptane). However, as we know, high Octane fuel (like alcohol) may allow you to run more timing lead without auto-ignition (preignition)- which "can" ultimately lead to more power "IF" you engine responds favorably to more timing.


What compression ratio do you currently have... or what is your cranking cylinder pressure ? Why are you running super high octane fuel now ?

Mark

(quoted from post at 08:16:36 03/17/10) Jd g 816 cubes i was thinking of using E85 with a mix of regular fuel what determines if i can use this? I currently use turbo blue but it is pricey. What do i have to do to convert or adjustments? Do you get more hp on E85 any side effects? I run under 1300 rpms

 

[b o b]

You have a 816 G and you say good fuel is to high to run.Don't build it and then cut corners. Leave it at home or sell and you won't have to worry.

 

[b o b]

You have a 816 G and you say good fuel is to high to run.Don't build it and then cut corners. Leave it at home or sell and you won't have to worry.

 

[CJ_1080]

Mark covered about all the good stuff there. The only thing I've noticed with blending e-85 and premium is you need to get them both at a station that sells a decent volume. The reason being e-85 and blended or reformulated fuel absorb moisture prety fast. You want to use it up and not leave it in your tank long. Maybe even ad some additive like heet or a moisture remover. Other than that and not paying through the nose for race fuel I haven't noticed any problems. Good luck. -Corey

 

[jd b puller]

I run E-85 straight, not cut with gas. Flush the tank after every pull and dump any E-85 left over.

It's got less BTU's, but you use a lot more of them. You could say it has a drinking problem.

E-85 has good antiknock, but not as good preignition qualities as racing fuel. Watch your timing and keep an eye on the EG temps.

 

[Anonymous-0]

Explain why you would drain your tank after you pull.I know that moisture is a problem, so i have been told. Could you not just keep your tank full?

 

[jd b puller]

It's hard on aluminum. Doesn't take much water to make a mess. I think the water forms some sort of acid when combined with the ethanol. For the little bit that the stuff costs, it's just easier. Keeps it out of the needle/seat too. I left it in the tank a couple of times and something was attacking the rubber in the gas tank cap.

 

[Anonymous-0]

(quoted from post at 18:07:03 03/17/10) It's hard on aluminum. Doesn't take much water to make a mess. I think the water forms some sort of acid when combined with the ethanol. For the little bit that the stuff costs, it's just easier. Keeps it out of the needle/seat too. I left it in the tank a couple of times and something was attacking the rubber in the gas tank cap.

Just go to straight methanol and top lube . 140 dollars for a 55 gallon drum.

 

[Mike Bock]

the alcohol in e85 removes the water from your fuel what do you think heet is .dont drain your fuel make new gaskets etc. out of something resistant to alcohol like neopreem and drill your jets out will need lot of compression to burn it,if dont need octain run gas been running e85 straight in my wc allis for 5 years with no problems

 

[Anonymous-0]

I would mix 50/50 with 110 and E85.

Big bores, short piston skirts, flat top pistons, high cyl pressures,,,,,,,, I don't think the 93/85 mix would work.

110 burns fast, its high rpm fuel.

You can blend in E85 with the 110,, it will burn cleaner, so less carbon build up in tight places,,, it will help drop your incomming air temps at the intake, it will slow down the burn of the 110 and cool down cyl temps, where alot of heat can create problems on their own.

E85 burns longer,,, so if the fire is still pushing on the piston a few more microfractional "seconds" it has shown to unlock a few ft lbs of torque.

Its not gigantic gains,,, but could be worth a few extra ponies at a cheaper cost.

ChadS

 

[CJ_1080]

I aggree with JD B puller. It absorbs moisture out of the air and does funny things. Not sure of the technical jargon but have you ever seen diesel gel? I have seen ethanol that sat on a humid day get jelly just like diesel in -20 temps. Cant explain it, it just does. Good luck.

 

[jd b puller]

Mike, you are correct that the alcohol absorbs the water, where do you think the water goes? It stays in your tank.

I probably go a little overboard on the water thing, but I've also seen how fast it can suck water out of the air, esp in a humid climate.

 

[Anonymous-0]

What type of spark plug are you guys running, hot or cold? Do you have to run a different gap on the plug for E85 vs racing fuel. I have seen tractors start easy running the high octane fuel, then go to E85 and seems like it takes a little more to crank.

 

[Anonymous-0]

Thanks for all the input. It does have a jerrys head and block kit. I wonder what the compression is for these? Does E85 gum carb up alot?