Re: E85 users - temperature question
[Re: cagebob1]
#2568791
10/24/18 12:07 PM
10/24/18 12:07 PM
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Joined: Oct 2007
Posts: 4,210 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,210
New York
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Can you retard the spark?
Boffin Emeritus
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Re: E85 users - temperature question
[Re: cagebob1]
#2568893
10/24/18 02:28 PM
10/24/18 02:28 PM
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Joined: Aug 2003
Posts: 43,285 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,285
Bend,OR USA
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I have change jets on my E85 Dominator carb, it was sensitive to the amount of Ethanol content in the pump swill I tested with but I didn't drive it at the track with the original jetting until much later. I would change the primary jets to leaner, maybe two sizes smaller, and increase the power valve restriction channel to get back to the same AFR at WOT or just change the primary jets first (leaner by two sizes) without racing it to see if it responds to that change only and go from there My car does warm up slow but it doesn't have a standard type or size radiator, it has two small oil coolers for the coolant instead It was that way when I got it and I haven't change it
Last edited by Cab_Burge; 10/24/18 02:30 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: E85 users - temperature question
[Re: cagebob1]
#2568914
10/24/18 02:56 PM
10/24/18 02:56 PM
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Joined: Oct 2007
Posts: 4,210 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,210
New York
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would a rich condition on E85 cause this issue? AFAIK frequently reported.
Boffin Emeritus
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Re: E85 users - temperature question
[Re: cagebob1]
#2568919
10/24/18 03:06 PM
10/24/18 03:06 PM
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Joined: Feb 2011
Posts: 1,454 Glendora Ca.
Just-a-dart
pro stock
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pro stock
Joined: Feb 2011
Posts: 1,454
Glendora Ca.
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Hi Bob. I would lean it out at a idle and put a t-stat on it with a bypass hose to keep water circulating. Works for me
Last edited by Just-a-dart; 10/24/18 11:28 PM.
"Just a Bracket car dressed up like a streetcar"
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Re: E85 users - temperature question
[Re: dizuster]
#2569182
10/25/18 12:00 AM
10/25/18 12:00 AM
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Joined: Feb 2005
Posts: 20,197 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,197
PA.
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I know a lean out valve works great with straight alcohol. Nothing fancy just a rubber line going to a spacer plate or manifold fitting going inside to a 1/2 ball valve. Crack it open to build quick heat and close it up.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: E85 users - temperature question
[Re: dOc !]
#2569488
10/25/18 07:04 PM
10/25/18 07:04 PM
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Joined: Aug 2003
Posts: 43,285 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,285
Bend,OR USA
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I buy my E85 fuel from a local gas station that sells all kinds of fuel from straight standard pump gas to diesel and VP brand race gas of several different octane ratings. The first ten gallons of E 85 I bought was in late fall and it ended up testing to be E75, not E 85 That was the E 85 fuel I used to do the first dyno testing on my e85 Dominator race carb. that wanted to be jetted down leaner to get the best HP and torque. The dyno shop ended up buying ten gallons of E85 from the same station the next week after my first dyno test and left it in the two 5 gallons plastic fuel jugs in the dyno room that winter. I went back the next spring to do some more dyno tuning and they insisted that I use their fuel as they weren't going to use it, I tested it there before using it and it tested out to be E90 I assumed that some of the gasoline had evaporated out of the jugs while sitting in the dyno room I have seen the same thing now in my fuel sitting in my plastic fuel jugs during the winter in my enclosed race trailer that sits outside all winter Two winters ago it got down to -25F at night for several days that week, it freezes at night most of the winter here from mid October to at least mid March My message is it ain't hot in the trailer during the winter so it is not the heat causing the fuel change, maybe it is the plastic jugs Mine has tested to be right at E85 out of the pump to start with but ends up testing to be from E87 to E90 when it sits more than a month or longer in the plastic jugs
Last edited by Cab_Burge; 10/25/18 07:05 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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