Researching legit 12V on board air system (for tow rig)

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    Researching legit 12V on board air system (for tow rig)

    I'm looking to install a LEGIT ass kicking, non-janky pieced together POS 12V on-board air system on my '16 Ram 3500 diesel/auto CC LB SRW. I've got an 8.5' steel flatbed on the truck with a 24" box on either side, behind the cab. Truck is stock other than the bed and 285/75-18s. The truck is my DD, tow rig, use it to pull our bumper pull ~30' travel trailer (camper) , 18' bumper pull car trailer & wheeling rig, and drive the truck on the beach for a week at a time, 3 - 4 times a year. I run 10psi - 15psi on the beach depending on how loose the sand is, like to air back up to about 35psi in-town between beach runs, 60psi normally around town, and run the rears at 80psi while towing. Truck is 9000lb with me in it, 9800lb beach ready, easily 10K wheeling ready. Cruiser runs 40s, 4Runner runs 40s, and air would be nice to have on the road hooked up to the camper or trailer. Google says no PTO for the 68RFE so I'm thinking 12V. I don't have the time nor desire to peace-meal some janky shit together and want compressor(s) that will take some torture. I'm hard on my shit, need it perform well airing up tires, want something that won't be a bitch to set up or maintain, and will last. I'm good with installing tank(s) below the flat bed and ideally will install the compressor(s) in one of the side boxes. For what it's worth, I already have a 9 gallon twin-torpedo tank but am not married to it at all. I'm comfortable fabricating, wiring, and plumbing everything to make it work. I'd appreciate any suggestions and thanks in advance.
    Last edited by LowDown; 5 days ago.
    1 ton FJ45. Father & Son 1 ton 4Runner Build. Death Metal Trailer.

    #2
    Sirch noob

    But no really there's been a couple recent threads that I thought had some decent info.

    Comment


      #3
      My search game is weak but I'm checking some stuff out now.
      1 ton FJ45. Father & Son 1 ton 4Runner Build. Death Metal Trailer.

      Comment


        #4
        I know that ExtremeAir and the compressor that's on the warn powerplant winches are good.
        I think that HYDRODYNAMIC had a fancy unit on his buggy, you should look into his build thread. Or maybe he'll chime in here.

        Comment


          #5
          Originally posted by LowDown View Post
          My search game is weak but I'm checking some stuff out now.
          I know how that goes.

          Think this was the most recent thread https://irate4x4.com/general-4x4/335420-on-board-air

          Comment


            #6
            Puma is a killer compressor for ~$300 with a small tank. I know via air and oasis make some bad ass stuff, but they are going to be 3-6x's the price for something with comparable cfm. If I wanted more cfm than the puma, I'd just buy 2 pumas.

            Tanks don't really do shit for airing up tires, but are handy for blowing out dust or running a tool.

            Comment


              #7
              Originally posted by YotaAtieToo View Post
              Puma is a killer compressor for ~$300 with a small tank. I know via air and oasis make some bad ass stuff, but they are going to be 3-6x's the price for something with comparable cfm. If I wanted more cfm than the puma, I'd just buy 2 pumas. Tanks don't really do shit for airing up tires, but are handy for blowing out dust or running a tool.
              Good to know - Thanks man. Being able to blow sand out of the truck would be awesome. 3 - 4 people and 3 dogs typically brings 1/2 the beach in the truck. 2 Pumas might be the way to go.

              Originally posted by posford View Post
              I know how that goes. Think this was the most recent thread https://irate4x4.com/general-4x4/335420-on-board-air
              Thanks for digging that up and posting it. I have no idea how I missed that thread. There's some good info there for sure.




              1 ton FJ45. Father & Son 1 ton 4Runner Build. Death Metal Trailer.

              Comment


                #8
                Puma is 3 cfm at 90 psi, I can't even find a viar that does that. Obviously 2 would be even more awesome, and having 2 of everything would be sweet incase of a failure.

                Comment


                  #9
                  Originally posted by YotaAtieToo View Post
                  Puma is 3 cfm at 90 psi, I can't even find a viar that does that. Obviously 2 would be even more awesome, and having 2 of everything would be sweet incase of a failure.


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

                  Comment


                    #10
                    Originally posted by HYDRODYNAMIC View Post



                    PUMA 12V
                    2.0 at 40 PSI
                    1.36 at 90 PSI at 46A
                    Well wtf, should have know not to trust Amazon description. ​​​​​​

                    This place says 3.3 @40/1.36 @90 though

                    https://www.aircompressorsdirect.com...or/p13972.html

                    Comment


                      #11
                      Originally posted by LowDown View Post
                      Good to know - Thanks man. Being able to blow sand out of the truck would be awesome. 3 - 4 people and 3 dogs typically brings 1/2 the beach in the truck. 2 Pumas might be the way to go.


                      Thanks for digging that up and posting it. I have no idea how I missed that thread. There's some good info there for sure.



                      Remote air tanks is the way to go. Mount the compressor somewhere safe out of the way of water and mud and mount the tanks wherever you can find room.
                      Add in a valve so you can turn off the tanks. Once the tanks are ran down and you are still filling tires. Shut off the tanks. The compressor can now fill the tires only and not have to recharge the tank as well. It saves time. Once done with the tires, then open up the tanks and let the compressor run while you drive around.

                      Comment


                        #12
                        Originally posted by YotaAtieToo View Post

                        Well wtf, should have know not to trust Amazon description. ​​​​​​

                        This place says 3.3 @40/1.36 @90 though

                        https://www.aircompressorsdirect.com...or/p13972.html
                        I believe some of those numbers I posted in the original thread where from some independent testers actually measuring flow, psi, and amps

                        Comment


                          #13
                          Originally posted by HYDRODYNAMIC View Post
                          Remote air tanks is the way to go. Mount the compressor somewhere safe out of the way of water and mud and mount the tanks wherever you can find room.
                          Add in a valve so you can turn off the tanks. Once the tanks are ran down and you are still filling tires. Shut off the tanks. The compressor can now fill the tires only and not have to recharge the tank as well. It saves time. Once done with the tires, then open up the tanks and let the compressor run while you drive around.
                          Thanks for chiming in. What would you get for this situation?

                          1 ton FJ45. Father & Son 1 ton 4Runner Build. Death Metal Trailer.

                          Comment


                            #14
                            You just need more patience! And 4 little Milwaukee inflators. Set the pressure, walk off while the racket is being made, come back in 5 min to aired up tires. All without ever actually installing anything, and while having plenty of backups in the case of failure. And 4 of them gets you 2.4 cfm.

                            Comment


                              #15
                              Originally posted by LowDown View Post

                              Thanks for chiming in. What would you get for this situation?
                              I went with a Thomas 1/2HP twin piston. It costs a lot but was worth it to me. Second choice is the Oasis York style.

                              Comment

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