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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 ... 9.75 1.51 0.66 6.48 5.98 4.25 10.00 1.47 0.68 6.65 6.13 4.36 10.25 1.43 0.70 6.81 6.28 4.47 10.50 1.40 0.72 6.98 6.44 4.58 10.75 1.37 0.73 7.15 6.59 4.69 11.00 1.33 0.75 7.31 6.74 4.80 11.25 1.30 0.77 7.48 6.90 4.90 ... Air Fuel Ratio ...
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.
Executive Summary. Market penetration of E85, nominally 85 volume % ethanol in gasoline or other hydrocarbons, has increased dramatically in recent years. This fuel is commonly known as E85, although the ethanol content is limited to no more than 83 vol% by the specification. The quality of E85 is specified under ASTM D5798.
So to be more specific, E85 and pump gas tend to work well at very similar lambda targets. For this reason you can (and most tuners do) just leave the wideband stoich setting at 14.7:1 (correct for pump gas), and tune for the same targets you'd use on pump gas. This is technically wrong, but it will get you the right result.
• E85 is a fuel blend containing up to 85% renewable ethanol by volume, completed by a petrol base1. Renewable ethanol is made from biomass feedstock such as sustainably grown crops, wastes and residues. • E85 is already widely distributed in France and Sweden and is available, to a lesser extent, in other European
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 ... 40 TPS 10 60 20 0-10 0 10 20 30 40 50 70 Inlet Air Temperature °C 60 80 Inlet Air Temperature Compensation. Created Date:
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.
