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Combustion Analysis

“If a new Corvette was 100% efficient, it would produce over 1000 horsepower and get 40 miles per gallon.”

Combustion Myths

Combustion on every cycle is identical.
Combustion happens at the same crankshaft location.
100% of the trapped mass is burned each cycle.
The trapped mass is ignited at the same crankshaft location.
The majority of produced energy goes to the flywheel.

 Reality

Peak cylinder pressure can vary by 300 psi per cylinder.
Peak pressure location can vary by 10 degrees or more per cylinder.
Most engines are lucky to burn 75% of trapped mass.
The location, in crankshaft degrees, can vary 8 degrees.
60% of energy produced goes out the tail pipe.

These and much more have been proven through constant speed, in cylinder pressure measurement.

combustion analysis

 
 
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