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OBA -> On Board Air Mega Thread & BS

Discussion in 'Technical Chat' started by Gunshot-6A, Oct 20, 2013.

  1. Feb 16, 2017 at 6:47 PM
    #1181
    Spansfelder

    Spansfelder Well-Known Member

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    Austin, TX / Germany
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    That's simple enough. But why don't you have the drain on the bottom?
     
  2. Feb 16, 2017 at 6:57 PM
    #1182
    windsor

    windsor Just a guy

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    Myrtle Creek OR
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    Canopy, fitted seat covers.
    Drain is on the bottom. Looking at the bottom of his truck.
    Mine is mounted in the same fashion but at the front of the bed.
    20170216_185158.jpg 20170216_185234.jpg
     
    seoulja99 and docloco like this.
  3. Feb 16, 2017 at 7:10 PM
    #1183
    tacomgee

    tacomgee just ain't care....

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    Blake
    NorCal - Santa Rosa
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    Mostly whatever sweet stuff I can find at Vatozone
    Like said obove, that is the bottom.
     
  4. Feb 17, 2017 at 10:47 AM
    #1184
    Tacoma SS

    Tacoma SS Well-Known Member

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    Boost and flex and 35s
  5. Feb 17, 2017 at 11:08 AM
    #1185
    Speedo

    Speedo Well-Known Member

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    Jason
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    Wrecked!
    mine is the same as this.
     
    tacomgee likes this.
  6. Feb 17, 2017 at 3:15 PM
    #1186
    windsor

    windsor Just a guy

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    Myrtle Creek OR
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    Canopy, fitted seat covers.
    Cut out your spare tire rack and weld in straight cross bars. That would give more room but still provide the structural support the rack gives and also give more manageable mounting options.
     
  7. Feb 18, 2017 at 5:21 PM
    #1187
    Gunshot-6A

    Gunshot-6A [OP] Not A Fed

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    Conner
    Salt Lake City
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    Hey Y'all,

    I have an cmta12 compressor and an led light bar that I am rigging switches for into the below HVAC switch blanks and have a jerry level question.

    I have the arb harness to power the compressor and since i am not running lockers, that means i have 2 plugs not in use. I am thinking of taking the easy way out and rigging the switch 1 plug on the harness to run my light bar relay.

    The issue i am having is the diagram implies that the isolator/compressor power switch is the master for the other 2 switches, so i would have to power on the compressor to run the light bar. It l like the load to the compressor would cut off almost immediately with no air demand. I know for a fact that I would run the light bar more than the ARB, but both would be fairly seldom (to and from MTB trailheads, etc)

    So my questions are:
    1) Is it ok / safe to have (potential) load to the ARB for decently long times when not in use?
    2) Does it make any sense to do it this way?
     
  8. Feb 19, 2017 at 12:31 PM
    #1188
    Justinlhc

    Justinlhc Not looking for a relationship

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    Having car seats in the back I can't ever get to the "storage" bins behind them so I put some tanks and a compressor back there and mounted a quick connect in the bed box. 4gal of air at 120psi.

    Looks kinda shitty right now. I change my mind more often than I change underwear so I want to make sure this is where it's going to be and it works before I spend the time to make it pretty.
    IMG_1995.jpg
    IMG_1997.jpg
    IMG_2005.jpg
    My helper:
    IMG_2004.jpg
    My asshole alerter:
    IMG_1983.jpg
     
  9. Feb 19, 2017 at 12:50 PM
    #1189
    Sandman614

    Sandman614 Snarky TWSS elf, Travis #hotsavannahdotcom, LRGRNR

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    '06 SR5 Off Road
    ARB Front Bumper, Projector Headlights w/Slimcubby 4300K HID's, Oznium LED's, LED taillights, DIY Washable Cabin Moose Filter, Sockmonkey SR5 Off Road, Aux Audio plug, OME 886x, OME Nitrochargers, Wheelers 3 Leaf Progressive AAL, ImMrYo Rear-View Mirror Lift Bracket, Dodge D-Rings
    Got your own pit crew lol
     
    Justinlhc and jamiec like this.
  10. Feb 21, 2017 at 6:27 PM
    #1190
    Airdog

    Airdog did your Mom

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    https://www.tacomaworld.com/threads/airdogs-2012-prerunner-access-cab-slow-build.264263/
    Installed my compressor into my access cab today. Its a bit overkill for just airing up tires but I got a smokin deal on the compressor.
    Thanks to all that contributed to this thread. It made my install much easier.



    I did add a backing plate to mine as I did not trust the interior plastic to hold up over time.



    There is a bit more detail on my build thread if anyone is interested.
     
    Jim Bob likes this.
  11. Feb 22, 2017 at 4:41 AM
    #1191
    mrbedgood

    mrbedgood Isaiah 6:8

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    Total Chaos +2" Long Travel Kit; King/TC 2.5 LT C/O w/ 16"x600; TC/CVJ Extended Axles; TC Spindle Gussets; King 2.5 RR shocks; All-Pro Expendition Leaf Pack; Pelfreybilt Sliders; Anti-Dark LED Hood Light mod; LED map and dome light mod; Bed lights; TRD Cold Air Intake; KB Voodoo Tailgate cap system; HomerTaco Thin Lip "Raptor" grille; sPod SE System w/ LCD Touchscreen; Baja Design OnX6 40"; Baja Design S2; Rigid Industries LED Rock Lights; Front Runner Slimline II Roof Rack; A.R.E. Z Series Camper Shell Projector BHLM Headlights (with custom wiring); Method Racing NVs 17"x 8.5; and Nitto Terra Grappers 265/60/17
    All the parts needed for my setup arrived yesterday. Drilled all the holes yesterday on the mounting plate. Final install today.

    IMG_1006.jpg
     
  12. Feb 22, 2017 at 5:32 PM
    #1192
    steveo27

    steveo27 Ask me about my weiner

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    Steve
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    The same shit everyone else has.
    After this past weekends debacle, I am looking for a small (portable) compressor to carry in my truck for emergencies/just in case moments. My budget is sub 100$ as I dont plan on using it every weekend to air up/down. I want something reliable that can inflate a flat tire after plugging in the woods on a camping/hunting/fishing trip. Im not super concerned about fill time, I just want something reliable thatll get the job done. Being able to pressurize a jug water would be a nice feature too for camping.

    Narrowed it down to 3 - MV-50, Viair 88P, and Smittybilt 2780. I remember seeing threads comparing the three but cannot locate them currently.

    From all my research, Ive found that the gauge on MV-50 and the 88P is not reliable. Not a big deal.

    The biggest things Im looking for is...


    1. The ability to add a quick connect off the compressor to make storage easier and to be able to run a coiled longer/shorter hose as needed.

    Research shows the MV-50 used a metric fitting, but can be drilled and tapped for fit a 1/4" NPT fitting. Ive not been able to find anything on the 88P. The Smittybilt 2780 has quick connect, but I cannot find any info on the thread size it uses. It appears to be a standard fitting of some sort.

    2. Out of the 3, the biggest selling point Ive found is both the MV50 and the Smittybilt compressor gives the option of permanently mounting and hard wiring them. Ive found a few thread with some info on permanently mounting em which kinda has me leaning towards those 2 option. From my research, the Viair 88P isnt recommend to be under hood mounted.

    Storage space in the (access) cab is already limited with all the other crap I have as it is and mounting a compressor under the hood would be MUCH more ideal than anywhere else. The only other unused spot to store the compressor would be in a rear cubby pocket.

    3. I like the option of being able to convert the setup to a closed system by adding a check valve, water trap, pressure switch, & tank eventually.

    I have some experience with on board air. My old lady's Jetta has air ride on it that was all set up and built by me - Viair 380c, check valve, water trap, 110/145 pressure switch, 5 gallon tank, then into the management. Its going on 4 years now with no issues. Im not looking to go anything that elaborate in the truck. Just a simple open setup that has the option of going closed eventually (but doubt I will as I have no need currently).

    Im kinda leaning towards the MV50 based on the price and the fact it seems to be a popular option.

    I would love to hear some real world input from fellow members who were in similar situations and came up with a solution. The truck has 265/70/17s on that get inflated to roughly 38psi. Lookin for real world inflate time and overheating info, ect.
     
    Last edited: Feb 22, 2017
  13. Feb 22, 2017 at 5:39 PM
    #1193
    mrbedgood

    mrbedgood Isaiah 6:8

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    '11 MGM DCSB TRD Off Road 4x4
    Total Chaos +2" Long Travel Kit; King/TC 2.5 LT C/O w/ 16"x600; TC/CVJ Extended Axles; TC Spindle Gussets; King 2.5 RR shocks; All-Pro Expendition Leaf Pack; Pelfreybilt Sliders; Anti-Dark LED Hood Light mod; LED map and dome light mod; Bed lights; TRD Cold Air Intake; KB Voodoo Tailgate cap system; HomerTaco Thin Lip "Raptor" grille; sPod SE System w/ LCD Touchscreen; Baja Design OnX6 40"; Baja Design S2; Rigid Industries LED Rock Lights; Front Runner Slimline II Roof Rack; A.R.E. Z Series Camper Shell Projector BHLM Headlights (with custom wiring); Method Racing NVs 17"x 8.5; and Nitto Terra Grappers 265/60/17
    InstalledIMG_1010.jpg
     
    Littles, windsor and Airdog like this.
  14. Feb 22, 2017 at 7:33 PM
    #1194
    Sandman614

    Sandman614 Snarky TWSS elf, Travis #hotsavannahdotcom, LRGRNR

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    Tim
    Garner, NC/Boone, NC
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    ARB Front Bumper, Projector Headlights w/Slimcubby 4300K HID's, Oznium LED's, LED taillights, DIY Washable Cabin Moose Filter, Sockmonkey SR5 Off Road, Aux Audio plug, OME 886x, OME Nitrochargers, Wheelers 3 Leaf Progressive AAL, ImMrYo Rear-View Mirror Lift Bracket, Dodge D-Rings
    I have the Smittybilt 2780, hard lined, hard mounted, and hard wired.
    The smittybilt 2780 uses metric threads, I'd have to look it up to give exact numbers. You also have to be careful, the smittybilt and others that have open hoses, no pressure is built up when not connected to a tire, need special modifications(unloader) to relieve head pressure. If you don't relieve the head pressure you will damage the compressor.

    265/75/16 about 3 mins each 18-40 psi
    The compressor hasn't overheated, even after filling 3 trucks in summer.
     
    Last edited: Feb 22, 2017
  15. Feb 23, 2017 at 6:39 AM
    #1195
    steveo27

    steveo27 Ask me about my weiner

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    Steve
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    The same shit everyone else has.
    Thanks for the reply. I believe I saw some stuff you posted about that a while ago which got me thinking.
     
  16. Feb 27, 2017 at 8:20 PM
    #1196
    desertjunkie760

    desertjunkie760 @DesertJunkie760 (IG)

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    Check My Sig.
    So I am starting to look into an OBA system and really appreciate the great builds and this thread. I did a Google search comparing the VIAIR and the ARB and had a few questions. I understand the difference in the duty cycle and being that I want to run front and rear lockers, be able to air up all 4 tires (no larger than a 35"), and possibly be able to run some air tools it appears that I may want to run an external tank. The VIAIR has a nice package for all of it, but how big is the 450C and will it fit in the engine compartment? I would like to run the pump in the engine bay and keep the tank under the bed.

    The ARB seems to have a nice product but for a pretty penny. I hear the twin compressor is a work horse, but has anyone ran a CKMA12 to a tank with success? If I could run the single compressor to a tank, maybe that will work well for my use? If I weren't using a tank the single may be a little slow for airing up and I wouldn't have the option of using air tools.

    Im sorry if this has been answered in this thread previously, I didn't make it through all 61 pages before I lost interest.
     
  17. Feb 27, 2017 at 10:20 PM
    #1197
    MJonaGS32

    MJonaGS32 MJ on a GS

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    Kings Mid Travel, Drifter, dual batt OBA, ARB locker, 4.56 gears
    Any compressor can hook up to a tank. Fitting the Viair 450C in engine compartment really depends on which model taco you have and what kind of space you have - there's a lot of diff kinds, I can't keep up.

    I actually had that set up: 450C + tank. I wasn't airing up as fast as my friends with the ARB compressors. Instead of scrapping what I had, I just got a second 450C and plumbed it inline. The ARBs generate more CFM so it'll air up faster. I would even have a "head start" by airing up the tank beforehand and everyone was still airing up faster than me. Now with two 450C plus the 2.5 gal tank (where I still do my "head start" trick), I can air up at pretty much the same time as them.
     
  18. Feb 28, 2017 at 4:02 AM
    #1198
    mrbedgood

    mrbedgood Isaiah 6:8

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    Total Chaos +2" Long Travel Kit; King/TC 2.5 LT C/O w/ 16"x600; TC/CVJ Extended Axles; TC Spindle Gussets; King 2.5 RR shocks; All-Pro Expendition Leaf Pack; Pelfreybilt Sliders; Anti-Dark LED Hood Light mod; LED map and dome light mod; Bed lights; TRD Cold Air Intake; KB Voodoo Tailgate cap system; HomerTaco Thin Lip "Raptor" grille; sPod SE System w/ LCD Touchscreen; Baja Design OnX6 40"; Baja Design S2; Rigid Industries LED Rock Lights; Front Runner Slimline II Roof Rack; A.R.E. Z Series Camper Shell Projector BHLM Headlights (with custom wiring); Method Racing NVs 17"x 8.5; and Nitto Terra Grappers 265/60/17
    I have my ARB twin compressor going to a manifold then to a tank with no problems. Takes about 1 or 2 to fill the tank, granted it's a 1 gallon. But I just bought the tank so I'm not running the compressor so much.
     
  19. Feb 28, 2017 at 1:12 PM
    #1199
    desertjunkie760

    desertjunkie760 @DesertJunkie760 (IG)

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    Thanks for the input. So what exactly does the manifold do? From my understanding it's not required unless using a tank and it helps with heat dissipation but beyond that I don't understand its purpose. I was think of a 2 gallon tank just for the tires and air tools if needed.
     
  20. Feb 28, 2017 at 1:39 PM
    #1200
    Sandman614

    Sandman614 Snarky TWSS elf, Travis #hotsavannahdotcom, LRGRNR

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    Tim
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    ARB Front Bumper, Projector Headlights w/Slimcubby 4300K HID's, Oznium LED's, LED taillights, DIY Washable Cabin Moose Filter, Sockmonkey SR5 Off Road, Aux Audio plug, OME 886x, OME Nitrochargers, Wheelers 3 Leaf Progressive AAL, ImMrYo Rear-View Mirror Lift Bracket, Dodge D-Rings
    It does help a little with heat, just more distance between the compressor head and the 'rubber' lines. It is not needed. I see 2 scenarios for it: 1-A small air tank for the lockers when not running a larger tank, 2-A distribution block (and more tank capacity) when used with a tank.

    Any tank smaller than about 10 gallons will not help much with filling tires(negligible difference), and using air tools(better than no tank though).
     

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