Originally posted by Freiburger
Granted, more temp in the chamber after ignition is more power, in theory.
However, the argument that Al heads reduce detonation sensitivity is based upon the Al sucking more heat out of the 700 degree combustion charge prior to ignition (i.e. quench). Thus, when looking at the combustion charge temperatures prior to ignition, the the Iron headed engine will have the hotter charge, and in theory, be more efficient.
Now, theory is for Scientists and I'm an Engineer... If Iron heads were measurably more efficient or powerful, everyone in NASCAR would run them, or they be illegal.
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