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#1
08-01-2007, 11:47 PM
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overclocking a compressor for garage
Has anyone overclocked their garage air compressor, by regearing it? My idea was to put a larger wheel on the motor, and a smaller wheel on the compressor itself.
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79 300SD - $50 out of pocket purchase 03 Dodge Ram 3500 CTD 2003 VW Jetta TDI 
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#2
08-01-2007, 11:54 PM
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Depending on how much you increase the speed, the compressor should be able to take the abuse.
Your problem will be horsepower. If you use your existing motor, you'll burn it out in short order because it's not strong enough to reach operating speed with the new loading. In the process of burning it out, you'll trip your circuit breakers several times due to overcurrent demand by the motor. If you go with a larger motor, you've got the associated problems of providing sufficient amperage to it with your existing circuits.
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#3
08-01-2007, 11:58 PM
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Any ideas on safe percentage increases for the compressor and motor?
I read on one website where a guy SWITCHED the two pulleys. Tested it and it filled his tank in some unbelievable time, at something like 19cfm. Bet his motor is toast soon, though.
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79 300SD - $50 out of pocket purchase 03 Dodge Ram 3500 CTD 2003 VW Jetta TDI
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#4
08-02-2007, 12:08 AM
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Mine has a rather heavy wheel on the compressor, with integral fan blades. I'm sure that it acts as somewhat of a flywheel.
But I did install a somewhat larger pulley on the motor, and have had absolutely no problems with it. The motor was wired for 110 when I got it, but I rewired it for 220 before even turning it on. I didn't have a big enough 110 outlet anyway. There is no sluggishness upon startup, and it doesn't seem to be straining at all. And it hasn't tripped the breaker once.
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#5
08-02-2007, 12:18 AM
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Any idea on the size increase? Twice as big, 25% bigger, etc?
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79 300SD - $50 out of pocket purchase 03 Dodge Ram 3500 CTD 2003 VW Jetta TDI
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#6
08-02-2007, 12:20 AM
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Quote:
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#7
08-02-2007, 12:26 AM
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I was thinking a little increase on the motor and a little decrease on the compressor would increase the cfm, but produce little extra wear on either one.
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79 300SD - $50 out of pocket purchase 03 Dodge Ram 3500 CTD 2003 VW Jetta TDI
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#8
08-02-2007, 12:38 AM
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Quote:
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#9
08-02-2007, 01:31 AM
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Quote:
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#10
08-02-2007, 01:36 AM
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Is it a diesel compressor?
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1987 300TD 309, xxx 2.8.2014 10,000 mile OCI Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous “Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss
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#11
08-02-2007, 02:13 AM
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Quote:
__________________
79 300SD - $50 out of pocket purchase 03 Dodge Ram 3500 CTD 2003 VW Jetta TDI
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#12
08-02-2007, 02:21 AM
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Quote:
__________________
79 300SD - $50 out of pocket purchase 03 Dodge Ram 3500 CTD 2003 VW Jetta TDI
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#13
08-02-2007, 02:26 AM
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Quote:
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#14
08-02-2007, 02:36 AM
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Quote:
Right. Maybe I'm missing something, or not explaining myself. Each cycle of the compressor produces a certain volume of air. I can't increase the volume of air produced each cycle, but I should be able to increase the speed of each cycle....produce more volume in a shorter time, right?
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79 300SD - $50 out of pocket purchase 03 Dodge Ram 3500 CTD 2003 VW Jetta TDI
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#15
08-02-2007, 08:41 AM
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Quote:
Same thing with the compressor. If you want to move more air (increase the rate of delivery), you need more horsepower to do it. Nothing is free.
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