Re: ethanol fuel

Posted by ChadS on October 26, 2005 at 11:38:40 from (66.228.96.207):

In Reply to: ethanol fuel posted by bitbythebug on October 24, 2005 at 20:37:03:

As long as the carb is rejetted to match the compression pressure in the cyl, you can run E85 mixed with pump gas and have no troubles. Most important when converting these older tractors to determine how much ethanol can be used is the compression ratio. if your tractor has 100-130 psi, than it can run up to 15%, 130-150 psi, then it can run up to 25%, 150-180 can handle 30-35% mixture, 180+ can handle a 50/50 mix of E85 and pump gas. You will never get it to run right on 100% E85, it is so hard to ignite. its like running 120 octane fuel. If your engine doesnt have the compression to fire it, it wont start easily, it will run erratic, etc etc. I perform E85 conversions bout twice a week on many different tractors, and usually pick up HP, and they run alot cooler when under a load. bad thing is, fuel economy suffers a little. Email me if you need more info on how to convert an Old IH to E85. ChadS

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