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post #1 of 8 Old 08-22-2011, 09:36 PM Thread Starter
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E85 Question

Was thinking about switching to e85. I know I will have to have bigger injectors, pump,lines ect for 30% more fuel and different tune to boot. My question is i have a AEM AFR gage and would like to know what perfect stoich would be on my gage(9.6)? Also can i re-pin it so stoich with e85 would read 14.6?What would be safe a AFR during boost on the gage.

Thanks for the help.


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post #2 of 8 Old 08-23-2011, 12:57 AM
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i run a safe 11.2 afr for my lean setup and a rich 10.5 for street runing have heard some runing as lean as 11.9 to 12.6 but i am not that brave nor feel like finding the limits of my tune either.30% more fuel is normaly the wining ticket.

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post #3 of 8 Old 08-23-2011, 05:11 PM
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I run about 12.6 to 11.9 under from 5-13psi. The gauge will read the same. Just google it MANY have asked, many have answered.


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post #4 of 8 Old 08-23-2011, 08:54 PM Thread Starter
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I thought that the gage would read 9.6 or something for perfect stoiche? So what your saying is the gage will read the same as gasoline without doing anything to it?? Thanks.......

95gt Dart block 363, TEA 205 Heads. 78MM Turdblower Custom cam, All fab work done by me....Moates tuned by me, AODE done up, yep I got overdrive. Drag radials, 327 rear. Next setup to come over winter...lol
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post #5 of 8 Old 08-23-2011, 11:04 PM
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as far as i know it reads the same
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post #6 of 8 Old 08-23-2011, 11:05 PM
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Quote:
Originally Posted by goatnipples2002 View Post
I run about 12.6 to 11.9 under from 5-13psi. The gauge will read the same. Just google it MANY have asked, many have answered.
how much timing are u running at 12.6 afr
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post #7 of 8 Old 08-24-2011, 12:45 AM
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It will read the same, because all the gauge is measuring is LAMBDA. Lambda is the same for gasoline and e85, so the gauge will read the same.
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post #8 of 8 Old 08-25-2011, 08:51 AM
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Quote:
Originally Posted by allenpeake View Post
how much timing are u running at 12.6 afr
I just changed my target AFR tables, but I run 27*@0psi then 24*15psi. I only run 13.4 psi. I took popes timing map and added 6* across the whole thing. I recently took all the timing out of the idle squares so it would stop surging. Do a search on the turbo forums for "popes" timing map.


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Last edited by goatnipples2002; 08-25-2011 at 08:56 AM.
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