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Old 07-07-2010, 03:37 AM   #96 (permalink)
jdgFirefly
EcoModding Lurker
 
Join Date: Jun 2010
Location: canada
Posts: 48

the dented fly - '96 pontiac firefly
90 day: 52.21 mpg (US)
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Quote:
Originally Posted by bschloop View Post
update on the AC compressor idea. I set it up again, and engaged the clutch while it was spinning. It has so little torque that I could hold it stationary with my hand. (Gloved of course) this was at 90psi, so it seems it will not work. Bummer
I find it encouraging to know that some compressors will actually turn as a motor. After doing some googleing I found that there is several types of compressors but they all look vary similar from the outside and I can't find any info on what type is on what car.

I'm a bit surprised that the thing produced really low torque. But then again the amount of air flow it would need would likely far exceed what a typical air hose can provide, especially if you used an air nozzle.

Also you can quickly check to see how good the compression is by sealing the outlet port with your thumb and turning it over a few times by hand. I found that a good piston compressor will hold pressure for a good 10s without any noticeable leakage.
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