Quote:
Originally Posted by woodydel
R P M
Just what does the M stand for? By increasing your RPM's you are PUMPING MORE AIR THROUGH THE ENGINE EVERY MINUTE. Pump more air by increasing your RPM's and you defeat your lean burn experiment. That increased volume of air must be mixed with fuel. Run your engine at the same number of RPM's as before. Lean burn is not your problem. Your engine can't properly handle the changes you have made and produce the same amount of power. Your insistence upon maintaining the same performance level is unrealistic.
|
I find it difficult to believe that an engine at 1500rpm and 17.7:1 (AFR) will produce more power than the same engine at 1500rpm and 14.7:1 (AFR) given that the latter will have more energy (i.e. fuel) in the mixture to combust and produce work. There is a reason why max power tends to occur around 12.5:1.
