STOICH POINTS OF FUELS

[69gt4speed]

I ran across this chart and thought it could be useful.... Remember when I was barking about al's 93 oct gasoline? So here is a chart of starting w reg gas 93 vs 93 w 10% ethanol. As you can see... running on the edge could be a issue w/o a/f adjustments.

STOICH POINTS OF FUELS

Pump Gas Non-ethanol: ~14.64:1
Pump Gas E10: ~14.08:1
Turbo Blue Unleaded (100 octane): 13.9:1
Turbo Blue Unleaded Plus (104 octane): 13.7:1
Turbo Blue 110: 14.7:1
Turbo Blue Advantage: 14.9:1
Turbo Blue Extreme: 15.0:1
Sunoco MO2X UL: 14.5:1
Sunoco 260 GTX: 14.4:1
Sunoco 260 GT: 13.9:1
Sunoco 260 GT Plus: 13.7:1
Sunoco Standard: 14.8:1
Sunoco MO2X: 14.5:1
Sunoco HCR Plus: 14.8:1
Sunoco MaxNOS: 14.9:1
Sunoco Supreme Leaded: 14.95:1
Sunoco Maximal Leaded: 15.01:1
VP Street Blaze 100: 14.16:1
VP C10: 14.53:1
VP 110: 15.09:1
VP C16: 14.77:1
VP C12: 15.00:1
VP C23: 14.93:1
VP C44: 12.87:1
VP MS103: 14.26:1
VP MS109: 13.41:1
VP Import: 14.15:1

[sparkles]

Should probably make this a sticky.

[Deimos]

My FASt meter said methanl is something like 6:1

[69gt4speed]

I don't have a racecar. As far as like what george and some others w the standalone tank/fuel pump I think he puts c16 or turbo blue 110 stuff in which tunes like reg gasoline. I have heard 33% bigger jets for nitrous and or duty cycle, at least that much more w e85 e98 methanol but probably buick guys/some ford guys know more than anyone. I just know the 10% seems to run leaner via a plug reading after Jesse and I tested. But that was all out to top of 4th gear. I don't plan on doing that again esp there. We do like to provide some entertainment though. Ppl liked it, all was good for pump gas.

[SLVR7]

Although those are the stoich points, you still tune for standard gas #'s UNLESS you reset your afr equip. Afr is calculated from lambada, which is constant no matter which fuel is being used. .85 93 oct, is the same as .85 methonal, only the correction factor is changed to make your display read the same.