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Lambda / AFR Table - FTY Racing. As a quick reference, here are lambda values and their AFR equivalents for different fuels. This is handy to use when looking at a wideband display/gauge that displays a gas scale AFR or just for curiosity’s sake.
Gasoline Desired Eq Lambda E85 Ethanol Methanol 8.00 1.84 0.54 5.32 4.90 3.49 8.25 1.78 0.56 5.49 5.06 3.60 8.50 1.73 0.58 5.65 5.21 3.71 8.75 1.68 0.60 5.82 5.36 3.81
E85 Ethanol Diesel Methanol Natural Gas Propane 14.7 : 1 9.8 : 1 9.0 : 1 14.5 : 1 6.4 : 1 17.2 : 1 15.7 : 1-----Stoichiometric AFR of Common Fuels AFR - Lambda Lambda - AFR 0 50 100 150 200 250 300 0 1000 2000 3000 4000 5000 6000 7000 8000 DEAD 0.95 - 0.90 DEAD 0.95 - 0.90 IDLE
For example let's say you will be targeting lambda 0.80 on both pump gas and E85. on pump gas 0.80 lambda = 0.80 * 14.7 = 11.76:1. On E85 this becomes 0.80 * 9.80 = 7.8:1. Hopefully that clears up your confusion.
E85 Calculator to mix ethanol with gas and make E20, E30, E50 blends. Determine octane of flex fuel mixture. Get percentage and gallons required for E-Mix fuels.
1 kwi 2022 · Building a proper E85 fuel system will take advantage of all the performance benefits of pump E85 while mitigating the risks. Flow capacity, material compatibility, tuning, and maintenance are the biggest considerations.
7 lut 2014 · E85 is a power enabler allowing more cylinder pressure and/or more timing as if the engine was running on race fuel, but it cost us $3.69 per galloon as compared to $12-$17 per gallon for a ...
