Intake, Header, HFC, CBE = Too Lean?

Originally Posted by Vegitto-kun what is running lean? I probably know it in other terms but does it mean that the engine isn't pumping enough fuel and air in the

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Intake, Header, HFC, CBE = Too Lean?

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03-24-2010, 07:49 AM

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Quote:

Originally Posted by Vegitto-kun

what is running lean? I probably know it in other terms but does it mean that the engine isn't pumping enough fuel and air in the cilinders?

Ideal Air/Fuel ratios for a N/A car are in the 12.5 to 12.8:1 range. Too lean would be in the mid 13:1 range.

Turbo cars like to run richer in the mid 11's as more fuel is used to cool the combustion and keep detonation under boost controlled.

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