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SVTPerformance's Chain of Restaurants
Tuning À la carte
Air/fuel ratios
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<blockquote data-quote="01yellercobra" data-source="post: 11428075" data-attributes="member: 35549"><p>It's not quite that cut and dry. Different throttle openings and different engine set ups require different A/F ratios. Yes, stoic for gasoline is 14.64. But that A/F will only be seen at idle and part throttle or light loads. Once you go WOT the A/F requirements change. For a N/A motor at WOT 12.6 might actually be on the rich side. Some people go for 13:1 or 13.5:1. Now if the motor is boosted (supercharger or turbo) then that same 12.6 is lean. For a boosted engine you want to be in the 11.5-12 area. Personally for a boosted vehicle I shoot for 11.5.</p></blockquote><p></p>
[QUOTE="01yellercobra, post: 11428075, member: 35549"] It's not quite that cut and dry. Different throttle openings and different engine set ups require different A/F ratios. Yes, stoic for gasoline is 14.64. But that A/F will only be seen at idle and part throttle or light loads. Once you go WOT the A/F requirements change. For a N/A motor at WOT 12.6 might actually be on the rich side. Some people go for 13:1 or 13.5:1. Now if the motor is boosted (supercharger or turbo) then that same 12.6 is lean. For a boosted engine you want to be in the 11.5-12 area. Personally for a boosted vehicle I shoot for 11.5. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
Air/fuel ratios
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