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Old 05-18-08, 10:04 PM   #75
Pin_Head
IH8MUD Lifer
 
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Join Date: Feb 2002
Location: OC, CA
Posts: 5,258
Quote:
Originally Posted by Marc311 View Post
I will also correct you about the 99% efficiency of the combustion process. You can't measure it by HC emissions alone as many of the HCs are burnt up by the catalytic converter.
My '76 2F has a combustion efficiency of 99% and it has no catalyst. With a catalyst it would be 99.9%.



Quote:
Originally Posted by Marc311 View Post
In addition, how the gasses explode, not just how complete they burn would have an effect on how much usable energy you would see at the rear wheels.
Hogwash.

The temperature at which it burns has an effect on the total energy released, but this is a relativley small component. This is the "TdeltaS" entropic part of the Gibbs free energy equation, but it is much lower than the deltaH (enthalpy or heat) part.

Gibbs free energy - Wikipedia, the free encyclopedia


PT Barnum: There is a sucker born every minute.

Last edited by Pin_Head; 05-18-08 at 10:11 PM.
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