Stroked F20 high compression pump gas to E85
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Stroked F20 high compression pump gas to E85
Nice little read to shed some light on what goes into an E85 conversion and tune. Full article: https://brewedmotors.com/blog/s2000-...ning-explained
"Modifying the pump gas tune for E85 (Fuel & AFR/Lambda)
With the pump gas map completed ready for E85 we start by modifying the main fuel map/s (either the main map or if flex fuel a secondary/flex fuel map).**note you may also want to modify your Lambda/AFR targets**. An engine will require ~10-35% more fuel throughout the rpm range with E85 vs gasoline. One benefit to Ethanol rich fuels is that it will burn/ignite/combust at leaner AFR than gasoline. This allows the tuner to "lean burn" (1.1-1.3 Lambda) the engine at low RPM and engine load saving fuel and in some cases drastically reducing emissions. Of course under mid to high engine load and RPM the AFR must be on the "rich" side of things (.7-.9 Lambda depending on engine power/size and use)."
Ignition timing and more screen shots from the AEM tuner software and data log software posted in the E85 Tuning Article.
can't seem to post the image for the calibration screen shot.. https://brewedmotors.com/image/data/...e-series-2.jpg
"Modifying the pump gas tune for E85 (Fuel & AFR/Lambda)
With the pump gas map completed ready for E85 we start by modifying the main fuel map/s (either the main map or if flex fuel a secondary/flex fuel map).**note you may also want to modify your Lambda/AFR targets**. An engine will require ~10-35% more fuel throughout the rpm range with E85 vs gasoline. One benefit to Ethanol rich fuels is that it will burn/ignite/combust at leaner AFR than gasoline. This allows the tuner to "lean burn" (1.1-1.3 Lambda) the engine at low RPM and engine load saving fuel and in some cases drastically reducing emissions. Of course under mid to high engine load and RPM the AFR must be on the "rich" side of things (.7-.9 Lambda depending on engine power/size and use)."
Ignition timing and more screen shots from the AEM tuner software and data log software posted in the E85 Tuning Article.
can't seem to post the image for the calibration screen shot.. https://brewedmotors.com/image/data/...e-series-2.jpg
Last edited by tunermt; Feb 5, 2018 at 02:30 AM. Reason: tried to post picture of fuel/ignition map for reference
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