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Class A air compressor?

alkillion
Explorer
Explorer
Now that I have this new Forza, I think I need a new air compressor. This thing has 22" tires and spec at 110 lbs. My old compressor (120v) would barely make it to 90 lbs.

I was looking at a Viair onboard system(12v), but they are $500.

Any suggestions?
May the Forza be with us!
2014 Winnebago Forza 34T
340 hp Cummins
Allison 6 speed
2006 Jeep Wrangler toad
9 REPLIES 9

rooster2
Explorer
Explorer
On a Diplomat there is an valve outlet for air in compartment under driver. Went to hardware store got some fitting and 50' of air hose (plus a HomeDepot hose reel) and have a way to air up tires 95# in front and 90# in back for when tires heat up they are running very close to 110#. Was such a hassle driving into a station and air hoses be broken. Motorhome with air brakes has an air compressor already.
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chuck4788
Explorer
Explorer
Beltone Magoo wrote:
Go to Sears, Home Depot or Lowes and get a 120v AC pancake compressor that will go to 140-150 psi. If you depend on your engine compressor you will be a long time filling tires, unless you have unlimited patience. I run 120 in the front and 105 in the rear. The engine compressor cuts in at 90 and out at 120. If you are near or below your desired psi you aren't going to get air in the tires or you will have to bleed air to get the engine compressor working to get the pressure up where it will push air into the tires. Cost for the store compressors should be in the $100-$200 range depending on sales.
Good luck and safe travels!


Exactly
I use a Porter Cable 150psi compressor, stored at the back of a storage bay pull out tray. I can run it off the inverter or the generator.
Buy a 50 foot Flex Ell hose ( no kinks and takes up little room) and a truck model double headed air chuck ( they slip onto the valve stem and lock onto the threads).
Chuck
02 Beaver
505hp C12 Cat
Trailblazer toad

Beltone_Magoo
Explorer
Explorer
Go to Sears, Home Depot or Lowes and get a 120v AC pancake compressor that will go to 140-150 psi. If you depend on your engine compressor you will be a long time filling tires, unless you have unlimited patience. I run 120 in the front and 105 in the rear. The engine compressor cuts in at 90 and out at 120. If you are near or below your desired psi you aren't going to get air in the tires or you will have to bleed air to get the engine compressor working to get the pressure up where it will push air into the tires. Cost for the store compressors should be in the $100-$200 range depending on sales.
Good luck and safe travels!
Doug & Connie
2001 Holiday Rambler Imperial
2001 Subaru Forester toad

okgc
Explorer
Explorer
Also alkillion Welcome to the forum.

There is much information available here. Keep asking questions, soon you will be helping others
2010 Tiffin Allegro RED 36 QSA with GMC Envoy
Alaska 2015

alkillion
Explorer
Explorer
Thanks folks. I've got a lot to learn about a diesel rig.
May the Forza be with us!
2014 Winnebago Forza 34T
340 hp Cummins
Allison 6 speed
2006 Jeep Wrangler toad

okgc
Explorer
Explorer
The Winnabago website shows your MH would have a Cummins ISB for power not a CAT.

http://www.gowinnebago.com/products/2014/forza/specifications/

With a Freightliner XCS chassis, Check in the front driver side basement cabinet for an air compressor connection.
2010 Tiffin Allegro RED 36 QSA with GMC Envoy
Alaska 2015

Executive45
Explorer III
Explorer III
Why carry something you'll never use..:h....use the engine for air.

Since the coach is new, you need to weigh it first. Then using those figures, check the weight tables for the correct air pressure. Make sure your coach is reasonably full on stuff you'd normally take with you on a trip when you get on the scales. For now, 110 will be fine until you have actual weights, then I think you'll find 110 is way too high. I run 110 on my steer axle, 315/22.5 100 on the drive axle, 295/22.5 and 95 on the tag. These pressures are 5PSI above the recommended PSI based on my weights. The 5PSI if for my personal comfort zone....Dennis

Note: The IDEAL method of weighing is to have each corner weighed but that's expensive and not too easy to find someone who can do it. You can axle weigh your coach at any CAT scale usually found at Flying J or a truck stop. Moving companies, grain elevators etc have them as well...D
We can do more than we think we can, but most do less than we think we do
Dennis and Debi Fourteen Years Full Timing
Monaco Executive M-45PBQ Quad Slide
525HP Cummins ISM 6 Spd Allison
2014 Chevrolet Equinox LTZ W/ ReadyBrute
CLICK HERE TO VIEW OUR TRAVEL BLOG

diveman52
Explorer
Explorer
Check and see if your new rig does not have and auxiliary air chuck already. If not ad one or have a diesel shop do it for you.
That thing will put out more are than you will ever need.
40+ Years in Electrical construction.
Retired IBEW Local 595
Every Days Saturday
2008 Newmar Dutch Star 4035

Trackrig
Explorer II
Explorer II
Your profile doesn't list what year or model your Forza is, but looking at the specs on the newer ones, they have air brakes. So all you should have to do is get an air hose and chuck if yours has them also. Much cheaper.

Bill
Nodwell RN110 out moose hunting. 4-53 Detroit, Clark 5 spd, 40" wide tracks, 10:00x20 tires, 16,000# capacity, 22,000# weight. You know the mud is getting deep when it's coming in the doors.