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Old 08-28-2008, 01:30 PM
Matt L Matt L is offline
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Join Date: Oct 2005
Posts: 4,263
Quote:
Originally Posted by WD8CDH View Post
True, but the pressure and temperature will build in a few seconds, not minutes.

Hydrocarbon refrigerants have worked the best for me to improve on R-12. Better for the environment than R134A too.
It would be best if the system were designed for HCs, but they do seem to work well in practice. From what I read, the system won't get as cold at idle as with R12, but people seem to be happy with the results.

I'm more worried about R744 (CO2) as a refrigerant to be adopted by car manufacturers and its inherent dangers due to extremely high pressures. HCs have shown enough promise that I would rather the manufacturers go that route. A properly-designed HC system would chill you out of the car at all speeds.
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