Re: Another E-85 question
[Re: Dabee]
#1036580
07/20/11 02:23 PM
07/20/11 02:23 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Its going to have 15% more gas in it so it should go fat with the added gas... remember we added jet (30% more fuel) to make up for the alcohol) EDIT you might not have enough octane with E-70 
Last edited by MR_P_BODY; 07/20/11 02:26 PM.
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Re: Another E-85 question
[Re: Dabee]
#1036585
07/20/11 04:51 PM
07/20/11 04:51 PM
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Joined: Jan 2003
Posts: 16,928
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,928
NC
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Quote:
I am also ordering an O2 sensor so I can get this thing tuned right. Jim can you post the recommenda lombda numbers again.
Just to be clear, any tuning numbers such as EGT, water temp, A/F, or even Lambda is just a target and each combo might like something slightly different.
But since Lambda is the same for any fuel, I like using it. Each fuel can be converted from Lambda to A/F ratio by multiplying by the fuels stoichiometric ratio.
Stoich gas = 14.7
Stoich E85 = 9.76
Stoich E70 = ? (somewhere between 9.76 and 14.7)
The guys at e85forum.net might have an estimate.
For WOT max power Lambda in the range 0.80-0.86 is about right. I would start with a 0.83 target.
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Re: Another E-85 question
[Re: Dodgem]
#1036588
07/20/11 05:10 PM
07/20/11 05:10 PM
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Joined: Nov 2003
Posts: 3,437
Dandridge TN
Dabee
OP
master
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OP
master
Joined: Nov 2003
Posts: 3,437
Dandridge TN
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Quote:
Russ you still have those barrels of meth around add .2 gallon to each gallon of E70 should work good???
Yes I still have both barrels. Could be worth trying.
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Re: Another E-85 question
[Re: Cab_Burge]
#1036592
09/29/11 07:15 AM
09/29/11 07:15 AM
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Joined: Aug 2008
Posts: 4,071
Mo.
racerx
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master
Joined: Aug 2008
Posts: 4,071
Mo.
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Quote:
I had a Domiantor carb done by a member on here, I dyno tested it with the jetting that was in it and ended up having to jet it down leaner several sizes to make the most power on the engine dyno. It didn't make as much power as a smaller Dominator(1050 gas and 1150 on E85) on race gas did so I ended up buying a E85 tester and found out the local E85 is only E75   As already siad, lean it down(one size at a time  ) with more gas 
Cab.When u tested the carbs with the e-75 did u dial back on the timing also?
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Re: Another E-85 question
[Re: Cab_Burge]
#1036594
09/29/11 03:10 PM
09/29/11 03:10 PM
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Joined: Aug 2008
Posts: 4,071
Mo.
racerx
master
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master
Joined: Aug 2008
Posts: 4,071
Mo.
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Quote:
Quote:
Quote:
I had a Domiantor carb done by a member on here, I dyno tested it with the jetting that was in it and ended up having to jet it down leaner several sizes to make the most power on the engine dyno. It didn't make as much power as a smaller Dominator(1050 gas and 1150 on E85) on race gas did so I ended up buying a E85 tester and found out the local E85 is only E75 As already siad, lean it down(one size at a time ) with more gas
Cab.When u tested the carbs with the e-75 did u dial back on the timing also?
No,I was using extended gap plugs also   I didn't know at the time of the testing that it was E75,not E85 as what I thought I had bought  I bought the tester later and tested it.
Ok Thax.
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I'm using a quick fuel 950 E-85 carb.
