Quote:
Originally Posted by Speedy1975
Why lamda instead of AFR? I personally prefer AFR, makes more sense to me.
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Lambda because it is unaffected by alcohol content or fuel type.
I know what you mean I used AFR for years then I finally made the switch.
Also when tuning the Math is easier with Lambda target is .85 and your at .90 you can add 5.5% fuel and be right on.
Stoich value changes with fuel type and manufacturer for example.
Race Gas Stoich Ratings
Sunoco MO2X UL – 14.5
Sunoco 260 GTX – 14.4
Sunoco 260 GT – 13.9
Sunoco 260 GT Plus – 13.7
Sunoco Standard – 14.8
Sunoco Supreme – 14.9
Sunoco MO2X – 14.5
Sunoco HCR Plus – 14.8
Sunoco Maximal – 15.0
Sunoco MaxNOS – 14.9
Turbo Blue Unleaded (100 octane) -13.9
Turbo Blue Unleaded Plus (104 octane) - 13.7
Turbo Blue 110 - 14.7
Turbo Blue Advantage - 14.9
Turbo Blue Extreme - 15.0
VP Street Blaze 100 - 14.16
VP C10 -14.53
VP C16 - 14.77
VP 110 - 15.09
VP MS109 - 13.41