almost there E85
#1653458
07/31/14 03:12 AM
07/31/14 03:12 AM
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Joined: Nov 2004
Posts: 3,517
pacific northwest
Stroker Scamp
OP
master
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OP
master
Joined: Nov 2004
Posts: 3,517
pacific northwest
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finally made the change to E85, got the carb set up from AJ Casini. Will fire it tomorrow and see how it feels. Tired of spending $14 a gallon for VP C12.
Next drop the bullets and put the Dynomax mufflers on so its not too loud on the street
footbrake N/A SB 408 Scamp 10.10 @ 132 street/strip
73 Duster 340 street strip 12.79 @ 105
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Re: almost there E85
[Re: Triple Threat]
#1653460
07/31/14 02:48 PM
07/31/14 02:48 PM
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Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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A.J did mine last year and I love it, car is more consistant and runs much cooler than before, to the point that I have troubles getting enough heat in it,but thats minor compared to the benefits. 
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: almost there E85
[Re: FlyFish]
#1653464
08/01/14 04:34 AM
08/01/14 04:34 AM
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Joined: Nov 2003
Posts: 3,428
Dandridge TN
Dabee
master
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master
Joined: Nov 2003
Posts: 3,428
Dandridge TN
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Quote:
Quote:
If there`s E-85 in Vegas I just may consider the change since I can either do the mods myself or buy the billet blocks and go to town.......
Found several stations in Vegas so what about afr`s.............heard you run it a bit richer than gas.
The AFR on mine at WOT is between .77 and .82 lambda (depending on the ethanol content of the fuel). It seems to make good power around there.
I tune mine for between .80 - .85 lambda at the stripe. I have over 600 passes on it, it's never been apart and it still runs like the day I put it in the car.
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Re: almost there E85
[Re: Thumperdart]
#1653466
08/01/14 10:52 AM
08/01/14 10:52 AM
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Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
super stock
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super stock
Joined: Dec 2006
Posts: 1,178
Indy
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Quote:
So lambda is the gauge not afr`s? 
Lambda just refers to the stoichiometric coefficient for the air/fuel ratio.
1 lambda for gasoline = 14.7 parts air to 1 part fuel.
1 lambda for e85 = mixture is about 9.8 parts air to 1 part fuel.
1 lambda is 1 lambda, so by tuning for lambda you can ignore the actual AFR.
The gauge in your car doesn't know if you are running gasoline or e85, all it can see is the O2 content of the spent exhaust gasses. For example: My AFR gauge (in its regular setup for gasoline) might tell me that I have 12.0 AFR. To get to lambda you just divide your AFR by 14.7, so you get about 0.82 lambda. You could get the real AFR for e85 if you like by converting from lambda (multiply lambda (0.82) by 9.8 = 8.0)….but that would be a pain, and more confusing than helpful. I like to just use lambda for my tuning, and on my gauge I can just flip a switch to make it read out in lambda.
My car is happy between 0.77 and 0.82 lambda. Max power on the rich side for e85 = about 0.72 lambda. Max power on the lean side for e85 = about 0.86 lambda.
I hope that helps more than it confuses.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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