air fuel ratio with a cam?
01-10-2005, 05:32 PM
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air fuel ratio with a cam? okay so i openly admit i know not a thing about air fuel ratio, except that it has to be right for my future cam/heads car to make the most power right?
well i thought stockiometric, think it means even or w/e that is lol, was like 14.5 something.. why is everying running a/f ratios in the 12's and 13's then?
this really has nothing to do with my car i was just wondering why i see different ones on cam cars, cam/heads cars or stroker motors.. does it have to do with the cam or heads itself or just what the person likes...
educate me please! i did a search but didn't really find out the goods on what it means, just cuased a few more questions lol
well i thought stockiometric, think it means even or w/e that is lol, was like 14.5 something.. why is everying running a/f ratios in the 12's and 13's then?
this really has nothing to do with my car i was just wondering why i see different ones on cam cars, cam/heads cars or stroker motors.. does it have to do with the cam or heads itself or just what the person likes...
educate me please! i did a search but didn't really find out the goods on what it means, just cuased a few more questions lol
01-10-2005, 05:51 PM
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Originally Posted by The35thZ
ive heard thats the "ideal" a/f ratio...but for some reason thats lean as hell!!!!
yea i dont really understand anything to do with it... supposedly u want to have 11.5-12.0 for spray and 12.8-13.3 n/a...
01-10-2005, 06:17 PM
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14.7:1 A/F ratio is the ideal ratio for fuel economy and emmissions...Reason being is that it takes exactly 14.7 molecules of air to burn 100% of 1 molecule of gas, hence the 14.7:1 ratio...
Now, as for max. power...The ideal is around 12.8:1, this roughly 13 parts of air to one part fuel is what combustion engineers call an excess fuel ratio and is intended to ensure that 100% of the air is used to support the combustion process. Also, the excess fuel helps to cool the combustion chamber slightly, helping to reduce pre-ignition...
Peace...Gman
Now, as for max. power...The ideal is around 12.8:1, this roughly 13 parts of air to one part fuel is what combustion engineers call an excess fuel ratio and is intended to ensure that 100% of the air is used to support the combustion process. Also, the excess fuel helps to cool the combustion chamber slightly, helping to reduce pre-ignition...
Peace...Gman
