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Discussion Starter #1
I'm heading for the dyno this week. I'll be doing my own tuning.
I have a smc kit installed, spray will be 100% denatured alcohol. I can readily get 93 octane from the pump. What air fuel ratio should I shoot for. I seen 11-11.5 is good target for pump gas but with alky injection I would think I can go a little leaner and be safe. Any suggestion??

Thanks,
Mike
 

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yea, use water instead of alcohol... optimal A/F ratio doesn't change (as far as an exhaust content reading goes), with fuel, but the alcohol will change the A/F ratio you’ll see.
 

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Agreed, a little leaner may be "alright", but I definitely like at least 11.5AF. It provides a little extra margin, especially on the street, or lets just say the pumpgas you bought isn't up to par.
 

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Discussion Starter #4
Well, I didn't quite get the tune I was hoping for the first time around. My fuel drops off 10.1 in the max torgue range. Funny thing is it likes the alcohol rich. The richer I went the stronger it got.

Mike
 
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