Quote:
Originally Posted by dparm
The automatics are going to run hotter, yes. The fact that you have more gears means the engine spends more time in the powerband and near redline, which makes it run hotter.
The ZL1's cooling isn't really more robust, but it has a much larger frontal area and more grilles to get more air into the heat exchangers. The Z06's grilles and vents aren't much different from a regular Stingray.
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Automatic Z06s are going to run hotter because it appears AT heat is exchanged with the engine rad. Manuals might be the same case but those boxes create less heat. IIRC, there is an additional cooler or heat exchanger that the autobox takes up space for.