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On board air !

Chevk588

Chevk588

Rock Roller
Joined
Feb 26, 2021
Member Number
3574
Messages
16
Loc
CA
Ok , first I’m aware of York compressors I’ve been using one the past two years loved it ! Unfortunately with my new motor and serpentine system it’s no longer an option what do you guys recommend? I run air lockers front and rear and air tools when needed also need to air up 40” + tires .
 
I run a Viair 485c compressor with a 2 gallon tank. Compressor is mounted on the tank and they are mounted in the engine bay behind the radiator.
 
I’ve had two of the ARB twins, generally is quicker than anyone else, outside of a York or oasis
 
Have been working on a pto direct driven compressor head just like the ones on class 8 trucks but other more important things tend to come first.
 
Pulleys aren’t the issue it’s clearance the neck for my thermostat housing is in the way , the cross bar for my coil overs are in the way the York is just too tall .
 
if I were to get a new compressor for my house, Id go snap-on.. so for a vehicle that uses air tools, Id try and get a snap-on to work.. I believed in them, partly cuz one of my best friends had a snap-on route for a long time.. and I saw some videos about them..
 
Here is some tech from another post comparing compressors:

(What I run) Thomas TASKAIR E Series 1/2HP
TA-5102E
Oil Less
Permanently lubricated and sealed bearings
Cast iron cylinder
SS valves
Teflon rings and skirts
Service free
Field rebuildable
Totally enclosed motor
Low vibration
Single point intake
Quiet operation
Resistant to dust and water

Thomas
3.35CFM at 0 PSI
2.72 at 25
2.25 at 50
1.50 at 100 at 45A at 12V
1.35 at 125
1.25 at 150, I am not sure what the running Amps are at 150 but I believe they are around 70 based on calculations
230A starting current locked rotor at full pressure

The ARB is showing
6.16 CFM at 0 PSI at 29A at 12V
4.68 CFM at 29 PSI at 50.4A at 12V
? CFM at 150PSI at 68.6A at 12V
Others list it as 3 CFM at 90 PSI at 56A at 12V

VIAR 480 12V
1.67 at 30 PSI at 17A
1.47 at 90 PSI at 28A
.95 at 150 PSI at 27A

VIAR 420 12V
2.12 at 30 PSI at 23A
1.30 at 90 PSI at 22A
.97 at 150 PSI at 22A

PUMA 12V
2.0 at 40 PSI
1.36 at 90 PSI at 46A

OASIS 12V
8.0 at 90 PSI at 180A

120V 1HP California Air Tools compressor
2.20 at 90 PSI at 8.5A
3.10 at 40 PSI

120V 1HP Rollair
2.40 at 90 PSI at 7.5A
3.80 at 40 PSI

If you look at the power input VS CFM the ARB does not look possible comparable to other compressors. Their 4.68 claim is almost double of others.
That means they are space age efficient which doesn't sound right given the noise comments and price point. Or they are not sustainable running at those performance levels meaning they will wear and drop performance quickly. Or their numbers are inflated.
Keep in mind that Thomas is an industrial supplier with mil spec products that have guaranteed ratings vs recreational or aftermarket specifications.
 
rockmup said:
I've had many Yorks, now I have a Twin ARB. Works great.
Click to expand...

Well interesting. I always wrote them off as slow based on previous small compressors.

HYDRODYNAMIC said:
Here is some tech from another post comparing compressors:

If you look at the power input VS CFM the ARB does not look possible comparable to other compressors. Their 4.68 claim is almost double of others.
That means they are space age efficient which doesn't sound right given the noise comments and price point. Or they are not sustainable running at those performance levels meaning they will wear and drop performance quickly. Or their numbers are inflated.
Keep in mind that Thomas is an industrial supplier with mil spec products that have guaranteed ratings vs recreational or aftermarket specifications.
Click to expand...

Good point and I'd also like to know.
 
I question the twin ARB as well, I have been a good number of trail runs where at least 1 person had issues with their ARB compressor that were internal issues.
 
welndmn said:
I question the twin ARB as well, I have been a good number of trail runs where at least 1 person had issues with their ARB compressor that were internal issues.
Click to expand...

Older twins could/ would break the screw that anchored the connecting rod. If that screw is replaced with a Ti screw, it’s a non-issue
 
Wilson said:
Older twins could/ would break the screw that anchored the connecting rod. If that screw is replaced with a Ti screw, it’s a non-issue
Click to expand...

Why Ti? Ti isn't exactly all that strong per say. Or was the OE screw just crap metal?

Do they get blazing hot when running? My Viair feels like it could ignite a campfire.
 
Weasel said:
Why Ti? Ti isn't exactly all that strong per say. Or was the OE screw just crap metal?

Do they get blazing hot when running? My Viair feels like it could ignite a campfire.
Click to expand...

I honestly do not know, as it’s second hand info to me. I believe the original screw was just crap material and ARB updated it at some point, perhaps even to Ti? I haven’t touched these, but expect that they get hot..... because physics
 
I'll say it again, its not a York. This is my second rig with the twin, I'm not trying to run air tools and I don't have a tank. I air up 40's and now 37's, is it slower ? Sure it is, do I care ? Not in the least.
 
Don't have a york, wheeling rig has CO2 but the truck and DD I'd like have a compressor. Just never realized the ARB twin was that good. I always think of the old units that came with the lockers.
 
whats the max PSI people are seeing out of stuff?

i am trying to come up with a solution that gets me in the 250psi range from an idea i have.
 
mobil1syn said:
a solution that gets me in the 250psi range
Click to expand...

I'm betting you'll want an A/C compressor for that. OBA stuff designed to put out "shop air" pressures might do it but probably won't like it.

What's your idea. You planning on running a nitrogen system for changing bump pressures on the fly?
 
mobil1syn said:
whats the max PSI people are seeing out of stuff?

i am trying to come up with a solution that gets me in the 250psi range from an idea i have.
Click to expand...

I actually have what you need. It’s a pressure amplifier. It has large and small pistons and looks like an air cylinder. High flow low pressure goes in and low flow high pressure comes out. Pistons pump back and forth. I think I got a 2:1 so 100psi = 200psi, max pressure might be 300psi. DM it’s for sale if you want it.
 
HYDRODYNAMIC said:
I actually have what you need. It’s a pressure amplifier. It has large and small pistons and looks like an air cylinder. High flow low pressure goes in and low flow high pressure comes out. Pistons pump back and forth. I think I got a 2:1 so 100psi = 200psi, max pressure might be 300psi. DM it’s for sale if you want it.
Click to expand...

interesting. to simplify it for my simple brain, its basically a high pressure diaphragm pump.
 
mobil1syn said:
interesting. to simplify it for my simple brain, its basically a high pressure diaphragm pump.
Click to expand...

No diaphragm, it’s two pistons of different diameter connected together and a simple flip flop or shuttle valve. Much like how a diaphragm pump works but with pistons.
 
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