Thread: Highest Octane For Stock ECU??
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Old 09-03-2009, 12:12 PM   #31 (permalink)
semtex
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Originally Posted by Mercennarius View Post
The gains were made because of the oxygenated fuel, not because of the octane difference. Oxygenated fuels have a lower power stoichiometric and thus you have to run a richer AFR mixture then non oxygenated fuels to compensate. While oxygenated fuels will reduce gas mileage they are able to produce more energy during the combustion process.
Whatever, forgive me if I don't take your word for it. In any case, this still disproves the claim that race gas produces gains only if cars are modified.
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