What Tuning Mods Needed with 15% Ethanol?

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02-22-2011, 12:44 PM

therock

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What Tuning Mods Needed with 15% Ethanol?

Well I have been happy for years. Now I hear 15% Ethanol is coming. What am I going to need to check in my tune.

HPTuners on a Radix.

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02-22-2011, 01:24 PM

04SilverCrew

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As long as the afr is good I would leave it. Its already at 10%.

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02-22-2011, 02:18 PM

therock

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Quote:

Originally Posted by 04SilverCrew

As long as the afr is good I would leave it. Its already at 10%.

Thanks

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02-24-2011, 06:45 AM

hog

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GM never made any calibration changes for E10, so I doubt E15 is going to change much.

Every GM vehicle since MY1992 has the parts to not be physically degraded by ethanol.

E0(100% gas) has a stoich of 14.6. E10 is 14.2, E15 will be slightly richer.

peace
Hog