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absubie · 02-28-2013, 12:44 PM

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.

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02-28-2013, 12:44 PM	#3678
absubie Scooby Newbie Member#: 196235 Join Date: Dec 2008 Chapter/Region: South East Location: North Georgia Vehicle: 2004 WRX JBP	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. * Registered users of the site do not see these ads.