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 Post Posted: Thu Jun 07, 2012 6:09 pm 
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Hey guys where should I start with timing?? I am at 35 right now. Should I leave it or adjust less..

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 Post Posted: Thu Jun 07, 2012 6:55 pm 
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Leave it right where you are for now. I found on most all of the combos I have setup they like right around the same timing as gas.


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 Post Posted: Thu Jun 07, 2012 8:25 pm 
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Timing doesn't seem to be any different for E85, I would suggest a little more heat in the engine. Some like a lot more, my suggestion it to try to leave the staging lanes at about 135 degrees to start. After you get it dialed in better try going up 5 degrees at a time. You should not need more than about 170 at the starting line, mine is around 140-150 at the line. Any more and I slow.


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 Post Posted: Thu Jun 07, 2012 9:36 pm 
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I leave or at least try to be in the burn out box at 150ish and after a run in warmer weather it 200+ by the time I get back to the trailer. It runs it's best at 160 on the starting line and that is on gas so it will be good to run cooler than what it has been...
OK then timing stays...

Also should I change the O2 scale to a different scale...

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 Post Posted: Thu Jun 07, 2012 10:15 pm 
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I would try it just like you did on gas first pass. 160 at the line and see what the cars does. You will not get anywhere near 200* when the turn is right. Most I think you will see leaving at 160 is 175. Just as reference I leave at 170 and cross the line at about 180, by the time I'm back at my pit spot I'm back at 165-170.

As far as O2 I log lambda. If you have that option it's the easiest as its independent of fuel type. If not I have the factor somewhere and will get it for you tomorrow.


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 Post Posted: Fri Jun 08, 2012 8:25 pm 
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On another note should I get a new set of O2 sensors when I make the switch???

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running E85
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Barry


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 Post Posted: Fri Jun 08, 2012 8:31 pm 
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Not unless the ones you have are giving you problems. They will last a long time on E85!

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Necessity is the plea for every infringement of human freedom. It is the argument of tyrants; it is the creed of slaves.

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 Post Posted: Sun Jun 24, 2012 7:14 am 
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AJ, I will take you up on the lamba to gas scale...Thanks

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Best ET 8.07
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 Post Posted: Sun Jun 24, 2012 7:17 am 
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There is a Lambda to gas scale at the link, shoot for .85 or 12.5 to start.

viewtopic.php?f=21&t=7745


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