Flex fuel corvette
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Heel & Toe
Joined: May 2024
Posts: 17
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Flex fuel corvette
About a 2 years ago I was at my tuners shop in Sebastian Florida and a long time customer told me he had a Camaro he ran on e85. He said both his Camaro and my c7 were capable of running e85 .All the tuner had to do is enable the flex fuel map on the cars computer. Does anyone know if this is true? And if it is why are people installing alky kits.
Cruiser
Joined: Sep 2021
Posts: 497
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From: NE Ohio
2025 C7 of the Year Finalist - Modified
2024 C7 of the Year Finalist - Modified
Pro
Joined: Oct 2021
Posts: 703
Likes: 222
From: Central TX
He's kind of right. As 14point5 added, you have to install a flex fuel sensor and then have the car tuned. The tuner will tune your car to pump gas and then do a second tune on E85 and the computer will then do it's own corrections based on the E% you run.
If you are not doing any other mods it's fairly expensive to gain ~20-25hp on a NA car. I did it along with mods because the car was already half apart so it only added about $500 to a 12k price tag. I gained 23hp and 23 ft lbs of torque on E vs 93 post mods.
If you are not doing any other mods it's fairly expensive to gain ~20-25hp on a NA car. I did it along with mods because the car was already half apart so it only added about $500 to a 12k price tag. I gained 23hp and 23 ft lbs of torque on E vs 93 post mods.
Pro
Joined: Oct 2021
Posts: 703
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From: Central TX
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Flex Fuel is easy. If you're an LT1 you can run full pump E with a flex fuel sensor and a tune. If you're an LT4, the stock fuel system won't allow you to run full pump E, you'll need to mix down to what your fuel system can handle which will depend on your mods. I tune these all day long. Easy way to pick up power. The LT4's benefit the most from E50+ but the LT1's still pick up a solid 20-25 rwhp in stock form.