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Old 11-28-2012, 01:00 PM   #6 (permalink)
jamesqf
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Quote:
Originally Posted by Joeggernaut View Post
Stoich:
The modern engine is trying to keep a 14.7 to 1 mass ratio of air to fuel.
No, for economy a modern engine will try to enable lean burn, where the A/F ratio might be up to 22:1, when conditions allow. Warmer intake air apparently increases the RPM/load range where this is possible.
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