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Old 03-07-2013, 07:17 PM   #3697
theoutbackdream
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Member#: 301179
Join Date: Nov 2011
Chapter/Region: BAIC
Location: Mountain View, California
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2013 WRX Limited
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Quote:
Originally Posted by absubie View Post
As I understand, it's all about knock threshold and resistance to detonation. Tuning for E85 allows for much more timing advance. I believe due to its high octane rating. I'm sure someone else can expound on this further.
IIRC, E85 is equivalent to an Octane of 105-115.
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