 | Home > Maintenance & Modifications > ARB compressor where to mount |
 
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| sako243 Member Since: 08 Jul 2014 Location: Wales Posts: 1223   
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Battery compartment, under the driver's seat? They're not particularly quiet things so might be nice to keep out of the passenger compartment.
Can't help really because I've got an AC compressor for my diffs so that's in the engine bay with a P38 air tank tucked up behind the rear passenger wheel. Ed 82 Hotspur Sandringham 6x6 95 Defender 110 300Tdi |
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6th Jun 2020 10:09am |
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| Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 2244  
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I put mine behind the passenger seat.
Mo The Land Rover 90 - Many are called, few are chosen. 50 Shades of Pennine Grey |
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6th Jun 2020 10:31am |
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| bankz5152 Member Since: 02 Feb 2017 Location: South London/North Kent Posts: 2178 
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Been wondering as well. Especially in a double cab.
Batttery box isnt an option as split charge in there. Cant go under rear seats, storage drawer/derv heater. I was thinking rear wheel arch in the pick up bed. Instagram @defender_ventures Empire Tuning - Agent |
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6th Jun 2020 10:47am |
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| bear100 Member Since: 22 Mar 2010 Location: South Wales Posts: 1917 
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Same issue here with the twin battery set up under the seat
I’ve got the storage cages in the rear with the top and middle shelf’s So the dog guard seems to be the best so far 2016 Range Rover Autobiography 4.4 TDV8 2010 110 XS Utility 2.4TDCI 2010 Range Rover Sport TDV8 (gone) 2007 Discovery HSE TDV6 (gone) 1993 110 csw 200 tdi (gone) 1994 90 HT 300 tdi (gone) 1994 discovery 300tdi (gone) 90 hybrid 3.5 v8 (gone) Range rover bobtail 3.5 v8 (gone) |
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6th Jun 2020 12:46pm |
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| Lightwater Member Since: 28 Jun 2020 Location: Sydney NB Posts: 72 
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I can't help where to place a compressor, but if you are airing up & down regularly add a moisture trap.
 Click image to enlarge Click image to enlarge 4L tank & compressor under the spare wheel for the Freelander. Click image to enlarge 2 compressors under the Freelander driver's seat. Click image to enlarge The custom internal & external heatsinks together with fan cooling reduce heat a lot. You can touch the air outlet, otherwise it will be over 100°C. The 3 compressors continuous output is 40psi with the ARB duster. Typically up to about 90amps via 4awg lead to an Anderson plug near the battery with engine running. Click image to enlarge With siphon using 0.5L per minute. Works really well with some "bite" in the water to abrase away dirt.
ARB data. As a rough guide knock off about 1% of your compressor's capacity for every connector & metre of air line. Click image to enlarge My tyres 255/60R18 have about 60 litres volume & can inflate a corner from 20psi to 35psi in 30 seconds with the 90psi pressure switch. The compressors are a bit ahead of what I can push into a tyre so with a 150psi switch my guess probably would be around 25 seconds. A small tank is great so you get a bit ahead between tyres. Make sure you can drain it easily, as it actually acts a bit like a moisture trap if cold. I replaced the fittings on the tank, they were hard to get off initially but once they started moving due to a hammer it was ok. I have also replaced the ARB connecters with Euro 1/4 air fittings. On the ARB orange 7mm ID air hose due to the small diameter it was a bit difficult but with a custom modification it worked out well.
Blue air hose is 8mm ID. Also have 2 small oil coolers used as an after cooler to help with condensing moisture. Click image to enlarge Visitor - Freelander owner |
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28th Jun 2020 7:30am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8051  
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Likewise i have changed my compressor fittings to PCL ones so i can use workshop hose and air tools without changing fittings. i have run single and twin pump ARBs and they are good, reliable and quite £££. for last 8 years i have a single cylinder T- Max under the drivers seat (2.4) runs perfectly and no problems and only £65. good constant duty cycle on them. Cheers
James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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28th Jun 2020 10:52am |
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| Michaelkan Member Since: 19 Dec 2018 Location: Bath Posts: 149 
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I hide my compressor behind my storage box on the dog guard. And output on the rear side window.
Click image to enlarge Click image to enlarge Click image to enlarge |
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28th Jun 2020 11:20am |
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| ColinReece110 Member Since: 22 Mar 2018 Location: Möhnesee Posts: 1  
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Hi all,
This also was a long thinking process, google. Inside the cabin, out side the cabin etc. I ended putting mine under the bonnet on the left side, behind the head light. There’s loads of space there, I’ve lifted and remote mounted the air filters. Also added a moisture trap. Also added 2 pressure regulators and some piping so I can set a pressure wanted, attach the pipes and let the compressor and regulators do the work. This also worked out great. There are loads of over priced systems on the market, you can do it your self. |
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12th May 2021 10:28am |
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| Matt110 Member Since: 29 Jun 2014 Location: UK Posts: 685
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What T-max compressors are there out there then? I've always wondered if one would be OK hooked up to a tank.
Think I remember there being 2 versions of different outputs? Frankly you could have 6 of them for the price of an ARB twin pump unit so that's what I planned to do. Buy one and if the fill rate wasn't high enough... Buy a second one. Are they waterproof? |
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12th May 2021 4:43pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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I have been sorely tempted by the ARB compressors of late and have had a T-Max one for going on 10 years now. It has done sterling work and pumps up 285/75/16 tyres fairly easy. It is not as quick as the ARB and its duty cycle is worse, it gets hot after four tyres, but it does the job for a budget compressor. As for plumbing it to a tank, I do not know I am afraid. |
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12th May 2021 4:58pm |
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4216 
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There is a bigger TMax, can usually spot it by the silver cover on top of the cylinder. I think the smaller one is just black. If you want to use it hooked to a tank you'll need to control it with a pressure switch on the tank as it won't shut off otherwise and would likely overheat in short order. 2007 110 TDCi Station Wagon XS
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12th May 2021 4:59pm |
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| 87110 Member Since: 14 Nov 2020 Location: Athens Posts: 13 
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Why not mount it in a rear wheel arch? Other than the risk of theft, which can be prevented by making a lockable compartment accessible from either the side (like MOD Defenders) or underneath it is better than most other options. Takes up no cabin space, not much noise inside, easily reparable and replaceable, easy fitment and good usage of unused space and can be fitted to most defenders easily, one size fits all.
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12th May 2021 7:58pm |
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| Lightwater Member Since: 28 Jun 2020 Location: Sydney NB Posts: 72
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I have added an after cooler, 2 small oil coolers. Would prefer to have it before the air tank but no room.
Can place it in the fridge for condensing moisture.
Just need a desiccant drier. Another option. Click image to enlarge Keeps me off the streets so to speak! Visitor - Freelander owner |
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13th May 2021 3:25am |
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| Lightwater Member Since: 28 Jun 2020 Location: Sydney NB Posts: 72
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If you are happy with the compressor you have, simply parallel a second compressor or 3! If the compressor doesn't have a pressure switch, buy one & plumb it in, easy. 2 compressors will run at 50% of the time, so a lot easier on the compressors after 4 tyres. A small tank is great to store a bit of air so you are a bit ahead ready for the next tyre. Also make sure that the cable for power supply is heavy enough. When calculating wire resistance it is the total distance of + & - so if your cable is 5 metres it is actually 10 metres as far as resistance is concerned. I upgraded my 6awg wiring to 4awg as I was getting about 7% loss. 3 ARB compressors are about 90 amps according to my DC clampmeter. As I bought 3 single ARB compressors they didn't have the 120 - 150 psi switch of the dual compressor. Only the 70 - 100 psi switch. I changed this to a 110 - 135 psi switch. Now it takes 28 seconds a tyre from 20 - 35 psi, engine not running, & this is with extensive plumbing in my setup. Ironically it take about a minute to deflate a tyre from 35 - 20 psi. Visitor - Freelander owner |
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16th May 2021 12:13am |
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