How to: Holley EFI E85 Flex Fuel Tuning Easiest V3 Software

In todays video I take you through the easiest way i found to run e85 in my turbo ls mustang using a holley terminator x max. There are multiple tables and options you can use for running your race car on E85 but this was the way that I found worked the best. The software I use is holley terminator x v3
Disclaimer: This video is intended for educational and informational purposes only. It does not constitute professional advice or guidance on emissions compliance. Emissions regulations and requirements vary by region and jurisdiction, and they may change over time. Viewers are advised to thoroughly research and understand their local emissions laws and regulations before attempting any engine swap or modification that could impact emissions control systems. It is the responsibility of the viewer to ensure that any modifications made to their vehicle comply with applicable emissions standards and legal requirements. This video does not replace consultation with qualified professionals who have expertise in emissions regulations and automotive modifications. Any actions taken based on the information provided in this video are done at the viewer's own risk.

[@MrGtilton]

Thank You brother!!! Saturday night I added a little E85 to my street car (with flex sensor) and barely made it home, the car stalled just as I pulled into the driveway. I had all those unnecessary adder/modifier tables enabled it fouled the plugs. Changed spark plugs, watched your video, edited tune. Sunday AM: Spanked 2 sport bikes! Woo Hoo!!!

[@WestcoastWrenchin]

@MrGtilton dude that's awesome to hear!

[@ProfessorLX]

Great little introduction to Flex, thanks!

[@JST4CYL]

Awesome video! After I listen to it another 5 times maybe I can put those Wild Rides torque boxes to good use 😂

[@williamzoom]

Good video, easy to follow!

[@sn95garage18]

Another good video . I still need to add a flex fuel sensor to my combo . I’ve just got mine tuned for ethanol and swap tunes for gasoline . Definitely not ideal

[@chaskacox-potter3217]

the reason you can run leaner on ethanol is because of how the Bosch O2 sensor calculates the AFR. It actually calculates in lambda, and on your configuration of the holley software you likely have your base fuel set as pump gas not e85, if the e85 base fuel was selected the lambda would convert to an e85 AFR instead of a gas AFR. ie the actual stoich afr of e85 is 9.8 or so but that would read as 1.00 lambda. so it reads in your afr table as a leaner value even though it is still a richer value than what it would be on gas. you don't need to know all this which is awesome but i think it is helpful and cool to know and understand.

[@WestcoastWrenchin]

@chaskacox-potter3217 thanks for sharing, I'm really intrigued by this! What would an appropriate e85 afr be?

[@199rocks94]

Do some research on lambda….wideband sensors read lambda where stoich of any fuel is 1 which is converted in the ecu to an afr….itll help you better understand why you can run a leaner ratio with ethanol

[@BlackCoffin88]

When can we expect a carb tuning video?🤔

[@WestcoastWrenchin]

Just waiting for a carb truck that runs and we'll do it 😁