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Old 22-01-2018, 09:00 PM
rotrex rotrex is offline
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Join Date: Jan 2014
Location: Germany
Posts: 187
Default Re: Injection amount vs E85

If you run it at a petrol equivalent indicated AFR of 10.2 or about lambda 0.69, you run way too rich in my opinion. That will even promote knock.
Is the 50:50 by weight?
Running so rich in the presence of water reduces burn speed a lot. It costs power.

I'd retune it to lambda 0.78-0.85. No need to run any richer on so much mix.

One of the reasons you might experience more power on e85 is its higher burn speed compared to your current super rich mix.
The ignition timing numbers will not directly be comparable due to the different burn characteristics.
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