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  #1  
Old 10-27-2017, 02:48 PM
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Default My quad compressor build...

I picked up 2 compressors at Costco today. Each are twin cylinder compressors and they each felt heavy for the size and had a few good reviews. For $29 bucks a pop I have the hair-brained idea to try to graft the two compressors together to make one quad cylinder hard mounted compressor for the 100 series. If it works, I'll create another for the 40 series.

My plan as it sits now...
  • Open up the cases and see what I am actually dealing with.
  • Merge the wiring to a hard wired, relayed circuit.
  • Wire to the aux battery
  • Interior compressor switch.
  • Merge the air lines into a manifold that has a quick disconnect.
  • Fabricate a dual mount bracket and mount it under hood.

Wish me luck, my goal is to be able to fill my 35x12.5-15's from trail pressure to street pressure (roughly 20-35psi) in under 3 minutes a tire. I have no idea if that is a pipe dream.

If nothing else, it'll be a fun process to build something.

Starting with two of these...
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Old 10-27-2017, 03:28 PM
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I would put a check valve in so the compressors only push to the tank or manifold. Some compressors don’t like to run backwards.
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Old 10-27-2017, 03:56 PM
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How trying a single compressor to pump up a tire from 20 to 35 and see how long it takes. Two compressor should approximately cut the time in half.

If the compressors have a pressure shutoff sensor, I'd add at minimal storage tank to even out the pressure.
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Old 10-28-2017, 12:05 AM
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I agree, I'm thinking of adding a check valve, manifold and maybe a small tank.

Here are the pumps, I'll give them a go soon and see the times they produce.
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Old 10-28-2017, 12:55 AM
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Drew, this really intrigues me. My double compressor was just ripped off from under my seat of my 40. I was thinking of doing a York and tying it in around my alternator...This could be a cool mod instead...thanks for putting this out here...
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Old 10-28-2017, 09:13 AM
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I would use a regular air compressor check valve as they release pressure on the heads so when the compressors restart they dont have work against back pressure.
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Old 10-28-2017, 09:33 AM
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I would use a regular air compressor check valve as they release pressure on the heads so when the compressors restart they dont have work against back pressure.
Yes. This. Absolutely. I’m about to do this on my cheap home compressor because I can’t run it anywhere but a 20A circuit because it pops a 15 every time it tries to start unless the tank is empty.
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Old 10-28-2017, 06:51 PM
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Kevin, how does this differ? Is this something I can source locally? Maybe McGukins or McMaster? Would ideally each compressor need its "own" check valve or can they be tied together first then install the check valve into a common air line? New water for me here... I'm hoping not to over complicate this or kill the deal with the add on's.
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Old 10-28-2017, 07:59 PM
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Quote:
Originally Posted by Rezarf View Post
Kevin, how does this differ? Is this something I can source locally? Maybe McGukins or McMaster? Would ideally each compressor need its "own" check valve or can they be tied together first then install the check valve into a common air line? New water for me here... I'm hoping not to over complicate this or kill the deal with the add on's.
If you plumbed them into a common manifold then you just add the “unloader” at that point. Let me google a pic....

They come in differant sizes and fitting configurations. When your home compressor shuts off you hear the hiss of air pressure. Thats the unloader doing its job. Here is a common one that you could probably get at Lowes or Home Depot....
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Old 10-29-2017, 09:49 AM
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Following this
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