Redbaron73 - Perfectly Matched Air on all axles

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Joined
Nov 3, 2019
Messages
497
RV Year
2019
RV Make
Newmar
RV Model
Dutchstar 4369
RV Length
43
TOW/TOAD
2013 Chevy Silverado 2500HD Crewcab / 2020 Jeep Wrangler Unlimited Rubicon
drive axle has 4 different psi readings. Even if off by 1 psi, its annoying.

This is even more important with the steer axle.

I finally came up with a solution.

I am using my viaair, specially made manifolds, 300 psi 1/4ID air hose. I can now air all 6 tires at the same time and ensure perfectly matched pressure!

Same setup works on the front axle too, as the chucks I am using are sealed unless connected.

During my test all 6 tires where 80psi. Needed to add 10psi. It took 15 minutes of just waiting for the viair to do its job. Not too shabby.
 

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Joined
Nov 15, 2019
Messages
252
Location
Sarasota, FL
RV Year
1997
RV Make
Newmar
RV Model
London Aire
RV Length
40'
TOW/TOAD
2008 Jeep GC Overland
Fulltimer
No
Now, we're going to need a parts list and sourcing info....;)
 
Joined
Nov 3, 2019
Messages
497
RV Year
2019
RV Make
Newmar
RV Model
Dutchstar 4369
RV Length
43
TOW/TOAD
2013 Chevy Silverado 2500HD Crewcab / 2020 Jeep Wrangler Unlimited Rubicon
the manifolds are the tricky part. I had these custom made. I am going to reduce the manifold count by using 3 of the 4 ways.

I am also looking for a good polyurethane hose that I will cut to fit.

you will need the tools to put ends on the air hoses. All is available on Amazon. I'll get the list together once I get this right.

I was impressed that my viair 450 could handle 6 tires at once.
 
Joined
Jul 27, 2019
Messages
3,875
Location
Midlothian, VA
RV Year
2017
RV Make
Newmar
RV Model
Ventana 4037
RV Length
40' 10"
TOW/TOAD
2017 Chevy Colorado
Fulltimer
No
Would the connection to the air tanks work any better if the engine is in high idle?
 
Joined
Jul 27, 2019
Messages
3,875
Location
Midlothian, VA
RV Year
2017
RV Make
Newmar
RV Model
Ventana 4037
RV Length
40' 10"
TOW/TOAD
2017 Chevy Colorado
Fulltimer
No
Also have to wonder with HWH Active Air with larger air lines if you could tap into a line for tire inflation.
 
Joined
Nov 3, 2019
Messages
497
RV Year
2019
RV Make
Newmar
RV Model
Dutchstar 4369
RV Length
43
TOW/TOAD
2013 Chevy Silverado 2500HD Crewcab / 2020 Jeep Wrangler Unlimited Rubicon
Using the onboard air is a no go. It allows pressure to drop below 100psi before engaging again.
 
Joined
Nov 16, 2019
Messages
52
You wander why the tires have different pressures after they are heated up? It is because they will have different amounts of moisture in each tire . You should use a pressure doubler . The coach air goes through an air dryer. Water vaper expands at a different rate than dry air.
 
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