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On Board Air system, Anyone done one?

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Old Jul 31, 2007 | 10:01 PM
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Default RE: On Board Air system, Anyone done one?

I have seen systems with old York compressors, but not sure how feesible it would be because there just aint that much room to put it anywhere, and it aint a little bitty thing.

As far as taking a while to pump up the tires, I suppose it probably will take a while. but lets see...

A 33x12.5 tire is close to 3cu. ft of air. So, For every 14.7psi change we need to add another 3cu. ft of air toadd 1 atmosphere. For my purposes I want to change air pressure from 45psi to 70 psi. thus a 25psi change.
so 25/14.7 = 1.7 and 1.7*3.0= 5.1cu. ft of air we need to add
so a compressor with as little as 1cfm@ 70psi would take you about 5 minutes to air up each tire.

Obviously this depends on you being at sea level for the 14.7psia. and does not take into account that the air compressor will probably put out more than 1cfm at pressures lower than 70psi. but for rough numbers it is fine.

If you wanted to air up from 0psi to 75psi it would take you 15cu. ft of air so about 15 minutes with the same 1cfm compressor.

I think I can live with that kind of performance.


 
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Old Aug 1, 2007 | 12:15 AM
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Default RE: On Board Air system, Anyone done one?

HOLY CRAP I didn't know you were among us !!!



 
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Old Aug 1, 2007 | 12:42 AM
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Default RE: On Board Air system, Anyone done one?

Well.... this outta help someone out.... At work... we have... god forbid i say this here.... But... he have Ford F-Series... Not sure what number... I know they are heavy duty trucks....Commercial trucks.... But anyways... They all have the 5.9 Cummins... I belive pretty much the same enginge as the Dodge 2500 and 3500.... and because each truck has air brakes... .they all have a belt drivin air compressor....and i belive the stock setting is about 130-140 PSI.... So maybe if you do enough diggin you'll find what you need.. I hope if helps... and if you guys wanna grab your paddles... I'm blindfolded and waitin for punishment

[IMG]local://upfiles/67955/DA12AD553BF6465D822503125E63CB8A.gif[/IMG]
 
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Old Aug 1, 2007 | 12:43 AM
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Default RE: On Board Air system, Anyone done one?

Hey Captain, I've been considering this one.

http://www.kilbyenterprises.com/KE-3000N-K.htm
 
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Old Aug 1, 2007 | 02:24 PM
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Default RE: On Board Air system, Anyone done one?

ORIGINAL: jakebrake

Hey Captain, I've been considering this one.

http://www.kilbyenterprises.com/KE-3000N-K.htm
close but I wold like to use a air brake compressor for reliability. and cfm
 
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Old Aug 1, 2007 | 07:34 PM
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Default RE: On Board Air system, Anyone done one?

As in a compressor for a big rig? 99% of those are gear driven. Which means mounting the p/s pump and vac pump on the back of the compressor. But since dodge put the engine mounts centered, it'll be too long and hit the mount.
 
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Old Aug 1, 2007 | 09:38 PM
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Default RE: On Board Air system, Anyone done one?

damn you Jake, I thought I was gunna get outta this for under 500 bucks, I really like that Kilby system.
1700 bones for the system though is a bit more than I was looking to spend....well back to rolling pennies!!!
 
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Old Aug 1, 2007 | 11:26 PM
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Default RE: On Board Air system, Anyone done one?

I don't think you'd need a system this fancy to air up tires or run air horns, but if you are gonna run air tools or something off your truck or airing up a heck of a lot of tires, I think this system would be worth the extra money.
 
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Old Aug 1, 2007 | 11:36 PM
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Default RE: On Board Air system, Anyone done one?

ORIGINAL: jakebrake

As in a compressor for a big rig? 99% of those are gear driven. Which means mounting the p/s pump and vac pump on the back of the compressor. But since dodge put the engine mounts centered, it'll be too long and hit the mount.
I've got a 2Cyl belt driven Bendix (shared cooling and oil) on a old furd 300 six that works great. the furd is about dead though after 35 years.
It gives plenty of air for tool and even a small sand blaster.
I'm wanting to get somthing like it for the CTD.
 
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Old Aug 1, 2007 | 11:43 PM
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Default RE: On Board Air system, Anyone done one?

I use something like this. It would certainly take a while to inflate a flat but it would work.

[IMG]local://upfiles/40422/0A33463339184213BC43CEA4EF5EB42F.jpg[/IMG]
 
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