Sunoco 94
Racer
Joined: Mar 2020
Posts: 272
Likes: 66
From: Virginia
You need to start reading up on it! I We don't keep a briefing book ready for you with a bunch of articles discussing the issue.
Racer
Joined: Mar 2020
Posts: 272
Likes: 66
From: Virginia
Drifting
Joined: Sep 2017
Posts: 1,962
Likes: 694
From: Avon Lake OH
E85 has less BTU per unit mass then pump gasoline, so it takes more E85 to perform the same amount of work than pump gasoline. This is shown in the different stoichiometric ratios of the two different fuels. That's why your MPG rating is lower when using E85 vs gasoline (even E10 or E15 pump gasoline).
E85 has a much higher octane rating than pump gasoline. So you can run additional ignition timing advance (before preignition occurs) than with pump gasoline, which increases the peak cylinder pressure and produces more torque at any given RPM. That's why you can make power when using E85 vs pump gasoline.
E85 has a much higher octane rating than pump gasoline. So you can run additional ignition timing advance (before preignition occurs) than with pump gasoline, which increases the peak cylinder pressure and produces more torque at any given RPM. That's why you can make power when using E85 vs pump gasoline.
Safety Car
Joined: Mar 2017
Posts: 3,771
Likes: 940
From: Orlando Florida
