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Home > Technical > Dual (now triple) compressor, air tank & water trap
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mikehzz



Member Since: 04 Sep 2009
Location: Springwood
Posts: 749

Australia 2008 Freelander 2 TD4 SE Auto Lago Grey

Hey Lightwater, your work there is very impressive. I reckon you and Vesko would get on like a house on fire. He's always inventing and installing all sorts of gadgets and contraptions to make overlanding more civilised. He has a very good 2nd battery system and on tap water storage and delivery that would probably interest you.

Post #335214 15th Nov 2017 10:35 pm
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4728

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

Thank's for your comments. I like more mechanical side of things & if reasonably possible quite happy to modify & improve off the shelf items where I see poor design. As long as I don't have to get my hands too dirty! Getting older! Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #335216 15th Nov 2017 10:48 pm
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mikehzz



Member Since: 04 Sep 2009
Location: Springwood
Posts: 749

Australia 2008 Freelander 2 TD4 SE Auto Lago Grey

Mate, I'm already old Smile

Post #335221 16th Nov 2017 2:30 am
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juarodri



Member Since: 01 Sep 2015
Location: Argentina
Posts: 48

Hi lightwater, nice job! Congratulations
In Argentina we also carry a compressor when going to the beach. I have one in the boot and I was thinking of getting a proper one under the seat as you did.
A couple of questions: what's the tank for? For having compressed air ready to inflate you tyres?
Did you try to fit it under the hood? Is there room for it, or is it the only alternative to have it under the driver's seat?
Did you consider having a dual battery system? I'd like to but I can't find room for the second one.

Thanks,
Juan

Post #335731 23rd Nov 2017 1:05 am
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4728

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

The tank is not necessary but while between actually pumping up each tyre or double checking tyre pressure. The pump can continue to pump and store air so the overall process is a quicker.

Since getting back from holiday I have found using a blowing/dusting nozzle on the end very useful for blowing dust and sand out of difficult to get to locations like the boot hinges.

Blower in one hand and vacuum in the other works well.

It is possible to get 1 compressor under the hood in front of the air filter box. I had made a template for a bracket to be made. In the end I put the compressors under the seat.

Two advantages of under the seat is the compressor will be pre-cooled with the air conditioning and being in the car less dust and dirt getting into the compressor. Compressors get seriously hot and the cooler you can run them the better for safety and due point. The colder the air goes into the tank the more effectively moisture is removed.

One more advantage, simply having a tank even without a moisture trap will dry the air. The tank should be able to be emptied every now and then. Aluminum tanks are safer in the long run than steel as they don't rust.

Moisture traps (mine has a regulator) are cheap and the further they are along the line the better.

The second compressor is hanging off the side of the aluminium bracket via a second bracket.

Click image to enlarge

Click image to enlarge

I have used some camera mounting plates to clip the compressors in place as it was easier to do this than screw the compressors in as a whole unit, & electrical plug connectors at every connection so if a compressor fails I can easily replace it. Having two compressors I have redundancy as well.

I have 6 AWG wire 4 metres to connect to the battery. So positive & negative totals 8 metres, at 13.85 volts, 60 amps there is 4.6% loss. 4 AWG would have been better at 2.9% loss but the cable connectors would have to be larger. Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #340207 22nd Jan 2018 9:34 pm
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4728

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

Here is a replica of an old fashion dual compressor setup. I prefer the electric version!

Click image to enlarge
 Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #340468 25th Jan 2018 9:59 pm
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4728

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

Added a venturi blower which can be used as a vacuum. The vacuum works with short bursts, I might add a second 4 litre tank. Adding more compressors would be better but it's getting a bit expensive! The blower works well when you need a large volume of air but it is only for short bursts of 5 seconds & volume then has to keep up with the compressors.

Click image to enlarge
 Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #340873 29th Jan 2018 10:47 pm
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adywicaksono



Member Since: 05 Jul 2013
Location: dxb
Posts: 67

2008 LR2 i6 HSE Auto Alaska White

Overkill setup for LR2 but nice Thumbs Up
I have both LR2 and LR3, portable air compressor (bushranger max is more than enough for me)

Post #340897 30th Jan 2018 12:58 pm
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4728

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

2018 Update, rather than starting a new thread:

ARB triple compressor setup: 200 LPM @ 29 PSI, or 125 LPM (4.4CFM) @ 90 PSi (90 PSI industry standard).

More to come!

But in the meantime I have but removed the plastic door mouldings for running compressed air line, easy enough, but, other than the simple clip with basic water sealing, I would not want to leave the Freelander in water for any length of time for more than is absolutely necessary! This is a side issue!

3 holes to the road:

Click image to enlarge

Also, if you want a nice clean car & you intend on keeping it, it might be worthwhile pulling out a few trims & getting stuck in with the vacuum! Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18


Last edited by Lightwater on 25th Feb 2018 10:20 am. Edited 1 time in total

Post #342591 18th Feb 2018 11:06 am
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4728

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

Getting the ugly bits out the way. I am a bit surprised at the amount of dust behind the trim I have removed, to try & find a suitable mounting position for the air line outlet.

Click image to enlarge

Work in progress. I have had the system up and running, but waiting for some proper wire loom tape to turn up. Don't want to use the rubbish from China!
Click image to enlarge

Click image to enlarge

Click image to enlarge

The heat sinks on this compressor I had actually ordered before I did the previous compressors but they took so long to turn up I bashed out some heat sinks from some LED light fittings. The compressor (as other two) is mounted on a quick release photography bracket. It does add a bit of cost but it does make life a lot easier while installing the compressors & if there are any redundancy issues I can easily replace a compressor.

I have a second 4 Litre tank as I was not sure which way to go, so I might just keep this as an inline addition when running the compressors in the garage for maintenance.

I will still use the 50 amp Anderson plugs. The 50 amps is a rating for hot swapping, unplugging while power is on. I have no intention to unplug the compressors unless it is an emergency. The plug will handle 120 amps using 6 AWG wire, maximum gauge in the 50 amp plug.

The tank can be easily removed for draining by unscrewing the two allen bolts & disconnecting air line hoses. Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #342659 19th Feb 2018 7:29 am
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4728

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

Compressor #2 disconnected to allow more access for wiring for compressor #3. Pulling air hose & wire loom must be half the effort of any job! But it will be worth it in the end.

Click image to enlarge

Bottom right corner of photo is the Anderson plug to the spare wheel well, & small wire running to fan cooling supply of #1 compressor.
Click image to enlarge

In the above photo if you squint you can see the same quick release leaver/handle Manfrotto photography bracket on the #1 compressor. The brackets are very old without the built in level bubble of the new ones (394) so I relegated them to the car & bought new ones for the camera.

The two front compressors have ducted forced cooling via 3 vents! Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #342775 20th Feb 2018 9:28 am
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4728

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

The third compressor is bolted to a block of timber with a nylon M6 nut at the bottom edge of the timber.

Click image to enlarge

Slight reconfiguration of air lines connections.
Click image to enlarge

2 Noctua 80mm fans (from old computers), I might swap them for 92mm to increase air flow, but I need some fan guards.
Click image to enlarge

Click image to enlarge

The easiest position for the moisture trap, no need for an extra bracket. I should have thought of this earlier!
Click image to enlarge

Air line outlet, then to moisture trap which should be as far as possible at the end of the line.
Click image to enlarge

3 compressors running, maximum draw is 85 amps while engine is running at about 14.4 volts. Even allowing for resistance in the power supply cable of about 6.5%, it is not too bad. For comparison the starter motor in 238 amps!
Click image to enlarge

If I can only find somewhere for the second tank! Nevertheless the one 4 litre tank fills from 70 PSI to 90 PSI in 7 seconds. This is a vast improvement over the twin compressor setup.

Dusting out the car with 3 compressors does provide a reasonable continuous air supply, 4 compressors would be nice, but this is already getting out of hand! Two compressors was not enough! Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #342900 21st Feb 2018 1:35 pm
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Largered



Member Since: 10 Jul 2016
Location: UK
Posts: 1978

On your recent travels "We drove about 9000km around Victoria & SA"......... did you have cause to use the compressed air set-up ???

.

Post #342904 21st Feb 2018 2:09 pm
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4728

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

I had one puncture about 100 km from a town! I also did not have my second spare wheel as we had not intended to go very remote.

It is recommended when remote to keep repairing your damaged tyre so you have the best possible backup!

Also helped out another driver who had the same compressor as me, but he had forgot to put his tyre repair kit in his car from their other car (same kit as mine)! Their puncture went right through the thickest part of the tread of the off road tyres on their Toyota Landcruiser. This was also about 100 km from a town & the dirt roads in the area were a pretty horrific road base. Tyre puncture material!

He previously had a puncture where he used 5 plugs & a stick jammed into the hole to limp back to civilization.


Compressor, repair kit, at the very least is peace of mind when you are remote. It gives you far more options! Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #342945 22nd Feb 2018 3:28 am
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4728

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

I will also add that you don't have to be that far from civilization. 100 km, +45°C, not much water left & 2 flat tyres! I have had 2 flat tyres in one go & it really makes you sit up & think about basic survival! I have driven all over Italy, France, Germany, England etc. The Australian outback at the best of times is a whole different situation!

We were here during a "cold snap" of +35°C & planned to get out the next day before the central Australia heatwave hit the following day. Kangaroos were digging holes in pebble laden creeks to try & reach water. I had killed a goat the previous day, it had fallen off a cliff the & broken its back & only one leg moved. I didn't want it to suffer any longer so found a 15 kilo rock to get a quick as possible outcome. As I said it gets back to basics out here! The kangaroos didn't flinch at our presence within 3 metres walking along the same creek with our water bottles!

When we stopped the car & looked around this area, not too far from the car, 300 metres or so, we simply left the car running with air conditioning running. I also noted that the closest petrol station, west of Blinman was on holidays until February, so it was a long drive to the second closest petrol station & I didn't have my 40 litres of backup on the LR roof racks, as we had no plans to be here this time of year originally. It was only because of the "cold snap" that we decided to duck up to the north Finders Ranges!

The engine cooling fan was running flat out about 95% of the time! We also had 50 litres of water, which is not actually that much, but it would give us 5 days of backup as we were each drinking 3 liltres a day & not wasting a drop on anything else, like cleaning teeth, let along cleaning a saucepan!

South Australia aerial maps: http://location.sa.gov.au/viewer/

Click image to enlarge

Chambers Gorge photos link: https://www.freel2.com/forum/topic30929.html Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #342949 22nd Feb 2018 7:39 am
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