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Dave012
12-23-2009, 12:47 PM
I'm going to be putting on Firestone air bags with a Wireless Air Control. Was thinking about putting on an air tank as well for tires and toys. Has anyone set this up? Is it possible?

How big of an air tank should I get? And will the Firestone air compressors be adequate to fill up a trailer tire?

Any experience/advice would be great.

Thanks, Dave

jayc
12-23-2009, 01:38 PM
I put a Viair compressor with tank in my v-tool box. It powers my air horn (GREAT for waking up those knuckleheads that pull out in front of me) and can also be used to air up my air bags on the rear, tires etc.

lwmcguir
12-23-2009, 02:08 PM
Have a welder friend that mounted a home made schedule 40 pipe air tank under the frame ahead of the bumper. It is connected to the compressor mounted under and inside the frame. Primary use is air bags but he has a quick connector in the bumper that can be used to air up tires. The small air compressor is good for topping them off but not for high usage. Pretty handy though. I just have the compressor for the bags and mounted it on the frame after someone on the forum posted that idea.

2010augusta
12-23-2009, 02:38 PM
I have not tried to use our on-board Viair compressor for tires, as it takes long enought to air up the air-ride system to 70PSI, I can't imagan trying to get the 19.5" tires up to 80PSI, We do have a 2 gal. Craftsman compressor mounted in the Landmark.

On my Jeep I converted a old York air conditioner compressor, to be an engine driven air compressor, and I welded up a 2x4 steel tube bumper to act as a small air tank and it works well.

porthole
12-23-2009, 05:48 PM
I added the air bags and wireless system this past summer. I really think the included compressor is too small for anything other then the air bags, and I would not want the compressor going bad due to excessive use. With the wireless system the sensors are constantly checking and adjusting the air pressure as needed, so you need to keep the pump operating.

I installed mine inside the cab behind the rear lower floor cover.

talley
12-23-2009, 11:21 PM
We check the air pressure in the BH Goodyears each time we pull. Also, will deflate the air bags and then inflate when towing. It became difficult to find an air station when needed. This past year we put a Viair compressor - Omega model with 150 PSI and 2 1/2 gallon air tank. This is part of an airhorn kit, however we did not have the airhorns installed. Compressor is mounted on passenger side frame rail forward of rear tire. Quick connect inside bed at tailgate. Normally the compressor would be wired to be active when vehicle is driven. I had a switch installed and normally the compressor is not on unless I intend to use it. I have been able to air the BH tires to the 105 psi that I run in the tires. Works much better than portable 12V compressors I have tired and the air stations at the convience stores.

Larryheadhunter
12-24-2009, 06:52 AM
Question folks, when I pick up my rig from the tow yard to go out on a trip, I have a CPO bought 150 PSI air compressor in my storage compartment. The problem is that without a plug, I can't inflate the tires, until my first stop at a campground with electricity. I am looking for a lightweight air compressor that doesn't require an electrical plug in for the initial day I am out there until we hit our first CG. I can check the air no problem, but without a electrical outlet, I am out of luck and if i have low tire pressure half to find a tire dealer close by. Any ideas would be appreciated. We have max 80 lb truck tires, and G rated Goodyear 614's that max out at 110 PSI. With an outlet it works fine, but I hate to have to worry especially if I haven't been out in a while.

jnbhobe
12-24-2009, 07:40 AM
Larry; The easy fix to me would be to add a generator to your unit, either one on the trailer or in the bed of the truck. Then you have electric anytime you need it. Merry Christmas !! JON

rick_debbie_gallant
12-24-2009, 08:40 AM
Question folks, when I pick up my rig from the tow yard to go out on a trip, I have a CPO bought 150 PSI air compressor in my storage compartment. The problem is that without a plug, I can't inflate the tires, until my first stop at a campground with electricity. I am looking for a lightweight air compressor that doesn't require an electrical plug in for the initial day I am out there until we hit our first CG. I can check the air no problem, but without a electrical outlet, I am out of luck and if i have low tire pressure half to find a tire dealer close by. Any ideas would be appreciated. We have max 80 lb truck tires, and G rated Goodyear 614's that max out at 110 PSI. With an outlet it works fine, but I hate to have to worry especially if I haven't been out in a while.

Another thought would be to add a decent size 12 volt to 110 volt inverter to your rig. That way you "could" use it when boondocking also. That coupled with a small 120 volt compressor may just get you by.

Larryheadhunter
12-24-2009, 08:57 AM
jnphobe,
Old buddy, buying that generator seems a bit over kill to put a little air in the tires before heading out. I like Rick and Debbie's idea. Now I have to figure out what that means in English. Sounds like it would also work for my bi pap sleep apnea machine requiring 110 volt as well. How many watts would it require do you think? And how come more folk don't use the inverter in the place of a generator? If you are going out boondocking for a week let's say or 4 days what would be the suggestions on inverters as a generator is a bit too expensive for me. Would it require those golf cart batteries as well. If so, guess I will have to go to another rally so my buds would have some fun installing it for their untechnical buddy. A case of beer just might do it as a cheap date. LOL

lwmcguir
12-24-2009, 09:19 AM
http://www.buellairhorns.com/images/P/5440-3.jpg

We use a setup like this only it has two tanks. Battery clips and a 50 foot hose makes it pretty handy. We top off 110 psig on the camper and truck easily. Takes less than 3 minutes to get to 130 psig. It pulls about 50 amps at 12 volts.

jnbhobe
12-24-2009, 09:19 AM
Larry;yes its expencive. But golf cart batteries and inverters are also, especially the good ones.A 3000 watt Honda is under 2 grand. and it will run everything but 2 AC units, it will run one. I bet you will have over $500 in 2 golf cart batteries and a good inverter, and it may not start your compressor. and it will drain the batteries pretty fast. There are charts to tell the draw of various appliances and the capacity of different batteries

talley
12-24-2009, 12:15 PM
Larry... I shared your concern until I installed the 12V 150 psi Aivair compressor + small air tank on my TV, I no longer am concerned about finding an air station with an adequate and working air station. Works for me:)

jgallego
12-24-2009, 12:28 PM
One of the reason I bought my 5th wheel with the 5500 Onan Gold generator was for this type of situation and also stopping in rest areas for lunch or a break.

Jaime

caissiel
12-24-2009, 12:42 PM
I have a 1200 Watt inverter that I installed to plug into the slides 120V plugs, I can operate the 32" TV and the air bed. The inverter hardly uses power when idle. Just swing the switch on / off when required.

jbeletti
12-24-2009, 01:18 PM
Larry,

Like some of the others have done, I too have added a 12 VDC compressor and tank to my truck. I carry 50' of air hose so I can reach all the tires on the RV from the truck. I think that setup was maybe $400 (http://www.amazon.com/Viair-10005-Heavy-Onboard-System/dp/B000X9O79I/ref=sr_1_11?ie=UTF8&s=automotive&qid=1261678107&sr=1-11).

For you, needing the Bi-Pap when boondocking, I too would lean more towards the inverter system. That system would be an inverter sized to at least cover the draw of your compressor for a decent amount of time, paired with a battery bank to sustain DV power to the inverter as needed.

Many on here may now know the current requirements of your bi-pap device. Take a look at it, where the power cord connects to it and look for the power requirements there. Look for the voltage, amperage and/or wattage. Or, reply back here with the brand and model and we'll figure it out for you. My sense it that it is a pretty small requirement. And nothing like what your compressor will need. That thing will likely be a power hog. Here again, look at your compressor for the requirements or provide brand/model here and we'll look it up.

If your compressor is similar to Forrest's, you may need an inverter no larger than he has. I think his is 2,000 watts.

For batteries, as others have suggested, at least 2 Trojan T105 Golf Cart batteries are a good choice. But there are many other decent choices too. Sams/Costco carries a good supply of alternate brands of deep cycle batteries as well. And sometimes, Costco carries the 2,000 watt Xantrex inverter. It's the cheaper, MSW (modified sine wave) model but your bi-pap and compressor may work fine with it.

Find yourself an installer for this sort of work and tell them what your requirements are and what suggestions you've been given here are and go from there.

Good luck.

Jim

rick_debbie_gallant
12-24-2009, 01:45 PM
Just one more thought on the 12volt system: The 12 volt is lots more quite than the generator system. You can recharge the 12 volt with solar panels or a wind turbine or both. If you have a freezer on board you can run that also. As well as the tv, vcr, satellite dish dvd player, etc. etc.......:)

porthole
12-27-2009, 11:42 AM
Some thoughts.

An inverter big enough to run a compressor under load would probably be in the 2-3000 dollar range - before batteries. And don't forget proper wiring to move all those little electrons.

Inverters are not 100% efficient. Maybe 80 % or so. That is way you cannot use an invertor to run a battery charger to keep the inverter batteries charged.

12 volt compressors will be pricey to get one strong enough to "fill up" 110 psi tires. But if you are just topping off ................

I have one of those portable air compressors, type sold at Costco.
When I got to Elkhart I used the compressor to top off the trailer tires (80psi) and filled my truck tires for the tow home (from 55 to 80).

I don't recall if I finished the truck tires or not before I went to the local Menard's and bought a nice Porter Cable 150psi pancake style compressor.

I threw the portable away.

I know this doesn't help the original question .............

But, a Honda 2000 and a small 110 compressor ......... and they can both do double duty.

Buy a 1/2" air gun and socket and now you have an easier way to change tires.

I have one of those "smaller" 2kw inverters ($300). It will not run most heavy load tools.

I had a Heart Interface 2.5KW ($2000) on my boat. That would run the AC, microwave or coffee pot (not at the same time).

I do have an advantage being a SCUBA diver. Before I had a compressor and a built in generator to tow along, I would carry a SCUBA tank and air chuck adapter

lwmcguir
12-27-2009, 08:23 PM
Not to denigrate having a 120 volt air compressor, nothing at all wrong with that. However we use the one pictured in the post to fill everything up to tractor tires. Works great but you are going to spend in the $300 dollar range for it. If you truly want a good portable 12V then that is the way to go.

Dave012
12-27-2009, 10:00 PM
Thanks everyone for responding. Its clear there's a number of ways to tackle some of this.

At this point I'm leaning towards the air tank w 12v compressor system as my air source and need to decide how to hookup/control the airbags from there.

R.Pratt
01-09-2010, 10:40 AM
I installed the firestone bags and ride rite system, the tank like port hole said is small but i can go from 0 to 80 psig before the compressor kicks on. I mounted the tank above the spare tire facing left and right on the cross member and with the tire back in it does not hit and is hidden, the compressor is mounted on my left frame rail just forward of the aft spring mount and is on the inside, i weatherproofed the connections and ran a seperate power lead off a relay so the switch was not carrying all the load, i also installed a T fitting in it and put a small air service connection in my bed as you can see on this pic, now i have air for tires and it comes with a 25' coil cord. you will never fill a large E tire all the way without the compressor running but the system is realitivley light and small and can be installed in about half a dayfile:///J:/DCIM/100MSDCF

jtcfishing
01-09-2010, 12:02 PM
Dave012 I also put firestone airbags on my truck and like you I also needed air for tires and toys and a trail-air hitch so I purchesed a firestone high pressure 12v air compresser it does a really good job even on 110lbs.for the trailer and truck tires. The best part is it is so portable,came with bag ,hose, gauge,and fill fittings well worth the money.

Larryheadhunter
01-10-2010, 03:29 AM
Wow you guys are smart. I don't have a clue what any of this means but will ask around. I think I like the idea of an 12 volt air compressor bolted to the truck, but on the other hand, duh, doesn't my air bags in my truck have a air compressor and is there any way I could use it for other purposes? Also, if I get the inverter that FLOYD suggests and batteries, geez, I don't even know what I am saying. Do I need both?
I will check on my bipap and report tomorrow the amps and wattage as Jim B suggests. This is way out of my league. I did not learn this stuff in college. As I said holy cow, you guys are speaking Greek to me, but I am sure with a phone call and some common sense I should be able to cover it all. Too bad I am not handy with all these gizmo's. I am almost tempted to just buy an Onan generator since we are gen prepped and forget about it. These technical words make my head spin. Whee!

beasleyrl
01-10-2010, 01:18 PM
Another thought. Honda generators are great. Invertors certainly have their purpose. And the onboard Onan is a wonderful option. Like most of you, I've played with all of these. When we bought our Cyclone, I did opt for the Onan and haven't regreted it in the least. It runs a compressor we keep in the garage of the Cyclone which gives us plenty of air for the tires and the Hensley hitch.

However, there is a another low cost option for power that I didn't see anyone mention. Pep Boys and Costco sell a Chinease knock off of a Honda generator. It tends to run in the $300 dollar range (vs the $2K range). There are several versions of this but the most recent pretty much comes 30amp ready out of the box. If not, there is a minor modification that can be made easily (instructions are on rv.net). I used this on my rig prior to the Cyclone and for the few times a year I needed it, it worked great! It is also National Park Service compliant so you can use it in the parks but it does still make noise (unlike the invertor). However, it has some side benefits in that it does have the power to run most of your rig (including a single AC or your microwave).

Larryheadhunter
01-10-2010, 08:25 PM
OK, here is the input for my bi-pap machine Jim B was asking about. It's called a Respironics Bipap Auto M series with humidifier, 100-240V, 50/60Hz, 1.70 A, Type BF, Class II, type BF. That's the info right on the back of the machine. I don't know how that applies, but those are the specs. It is interesting that many think I should get an inverter, and many suggest a generator. I am hoping to stay out of the snow during our travels, but stuff happens, and you have to be prepared.

Thanks in advance for more options, everyone.

porthole
01-10-2010, 10:35 PM
OK, here is the input for my bi-pap machine Jim B was asking about. It's called a Respironics Bipap Auto M series with humidifier, 100-240V, 50/60Hz, 1.70 A, Type BF, Class II, type BF.



So - you can use it here or across the pond. 50 Hz Europe, 60Hz USA

Converting Amps to Watts

The conversion of Amps to Watts is governed by the equation Watts = Amps x Volts

Watts = 1.7A x 120V = 204 watts

So you would need at least a 300 watt inverter (inverters are not 100% efficient).

A 1000 watt inverter should be more then sufficient. If you have room for extra batteries a pair or 4 - 6 volt batteries would be ideal.

If you hook the inverter up to your house battery you would want a positive way to disconnect it, e.g. a battery switch. Even turned off inverters have a small drain.

And if your batteries start running low you can always hook up the truck to the 7 way trailer connector and run the truck to charge the batteries.

Larryheadhunter
01-11-2010, 04:19 AM
Thanks Duane, but I think I would need more watts for an inverter if we ever dry camped without a genny. Gotta think about everything electric, TV, microwave, A/C etc. don't you think?

mcmartin
01-11-2010, 09:39 AM
I put the air lift bages (5000lb) on my 2003 ram with a compresser and 2 LB tank (tank in box in bed) I have no problem airing up any thing and it works great toys and tires part number 25690 on airlift web site

caissiel
01-11-2010, 09:49 AM
I have a $7.00 12volt compressor in each vehicles and use it for all tires. up to my 110PSI trailer tires.

porthole
01-12-2010, 01:17 AM
Thanks Duane, but I think I would need more watts for an inverter if we ever dry camped without a genny. Gotta think about everything electric, TV, microwave, A/C etc. don't you think?

Then you would be spending more for an invertor then you would for a portable genny.

You get what you pay for and a quality (Heart - Trace etc) 2.5-3KW inverter, appropriate wiring, batteries and other ancillary "stuff" will have you approaching the almost $1 per watt range - before installtion.

Unless you get lucky and find some bargains.

I hemmed and hawed on a Heart 3kw unit that the dealer had sitting on a "display used" shelf.

Didn't take long for someone to see that at $950 with no box that it was a baragin at the time.

Larryheadhunter
01-12-2010, 01:34 AM
Duane, where could you find a portable genny for 1K? And what is the benefit either way to get a genny over a 2-3Kw inverter? I really don't know the cost/benefit analysis? Since I am gen prepped would I be better off with a genny but at nite while sleeping the inverter would be better for my sleep apnea as it's overkill to keep a genny on all nite, very expensive and would upset the local campers as well. LOL