Quote:
Originally Posted by JacobLeSann
freebeard, hah! I wish. I’ve had a 2008 Coupe I bought for wheels/tires. Strange guy sold it to me and I realize it may not have been his. Thankfully everything is in good condition, just a hacked off catalytic converter and no keys. Was dirt cheap.
aerohead, I’ve noticed chevy’s racing divisions recommend similar heats. I wonder why. Wouldn’t less be better for a racing car?
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In engineering, and from thermodynamics, the highest thermal efficiencies for heat engines are achieved with the greatest delta- T between the upper operating temp, and the 'sink' temperature.
In automotive engines, the highest operating temperatures are constrained by thermo-chemical disassociation of the hydrocarbons used to lubricate the reciprocating components, and by the thermal expansion coefficients and metallurgical operating limits of components exposed to the heat of combustion, along with all the dynamic forces, loads, stresses, strain, jerk, etc..
You take everything you can right to the 'limit.'
You get the lowest pumping losses ( parasitic losses ), and extract the greatest amount of useful work for a given heat input.