What is the speed of the ac compressor supposed to be in relation to crankshaft speed is it 1:1 or should the ac spin faster than that?
AC Compressor Speed
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Million dollar question. Depends on number of pulleys and size, where it is driven from. Why do you ask?
I have never heard that question before
I have never heard that question before
I am trying to come up with a way to add a pulley to drive a compressor on my Monte and it has to be in front of my current pulley set up otherwise there is no place to run it with my limited amount of room.
This is going to be a direct crank pulley to ac compressor set up.
My pulley ratio with my current set up 1.4 to 1 and if I add a smaller pulley it would be 1.1 to 1
This is going to be a direct crank pulley to ac compressor set up.
My pulley ratio with my current set up 1.4 to 1 and if I add a smaller pulley it would be 1.1 to 1
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If I can somehow get a compressor hooked up to the engine then I will be running a Vintage Air trunk mount evaporator and a remote condenser with an electric fan.
I have never run into a compressor to fast or to slow issue, but, to slow may make for longer cooling time, to fast may make for less compressor life.
I would like to see the compressor pulley run closest to the engine as it draws the most load and less stress on the front main bearing.
Ford had an issue many years ago on that as I recall.
I would like to see the compressor pulley run closest to the engine as it draws the most load and less stress on the front main bearing.
Ford had an issue many years ago on that as I recall.
Most that l've seen the crank pulley is the same size as the balancer so say 8" but the compressor is only a 6", so with that l would say the compressor runs faster. So l guess the ratio would be 1:1.25.
My crankshaft pulley right now is 7" and if I go with a new R4 that has a 5" pulley but the add on pulley if it works would 5.5".
Either way it seems comparable. I think the only thing that really matters is if your going to be pulling crazy rpm's.
I would install an RPM switch to kill it at a relatively low speed since I shift at 7400+
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