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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4704

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

Also around the fuel filler cap before one opens it. It is frightening how much dust collects here. The compressors have had a multitude of uses. 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 #355255 20th Aug 2018 9:59 am
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Craig



Member Since: 30 Sep 2018
Location: australia
Posts: 1

Australia 

mikehzz wrote:
You need to use your compressor to blow out the air filter every couple of days. That red dust gets into everything except the engine hopefully. The rest of the world is too civilized now and 4wd's are getting softer as a result. Most people in Europe sizegenetics https://www.virtualpalomarwest.org/sizegenetics-review/ would be absolutely astonished at how much is spent on addons to 4wd's here. It's pretty normal to buy something like a Triton, L200 in the UK, for around $40k, then spend another $20k on accessories to make it capable enough to handle the conditions. Things like suspension lift, bullbar, towbar, snorkel, radio, driving lights, winch, bash plates, diff locks, off road tyres, compressor, canopy, drawers, fridge slide, rock slider side steps, roof racks....blah blah. You can't drive 5 minutes without seeing a fully kitted out 4wd here. I can drive a month in Europe and barely see a real 4wd.


how many compressor you need


Last edited by Craig on 7th Mar 2019 3:46 pm. Edited 1 time in total

Post #357876 30th Sep 2018 2:11 pm
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mikehzz



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

Australia 2008 Freelander 2 TD4 SE Auto Lago Grey

Just one decent one will do.

Post #357897 30th Sep 2018 9:30 pm
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4704

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

With a LOT of emphasis on quality!

The retailers & most packaging do not mention anything about duty cycle.

The PSI stated on most compressors, lets say 200PSI is basically for zero air flow, & the litres per minute is for free air flow, in other words one atmosphere. & the first atmosphere you need to deduct from any equation as you have zero pressure for the first atmosphere. Neither PSI or CFM are useful figures for pumping up 4 tyres, let alone a single tyre!

What should be stated is SCFM (standard cubic feet per minute) for the task the compressor is supposedly designed for. Typically up to 45 PSI for cars or 65 PSI for trucks & 90 PSI for tools. 90 PSI is the industry standard. How many litres or cubic feet per minute do you get at 90 PSI at 21°C ?????

Also as a very rough guide deduct 1% of the compressors capacity for every metre of air hose, air connector & right angle elbow fitting. Also deduct 1% for every metre of electrical cable, clamp & connector. Then you will be within ballpark of what the compressor is capable of doing.

My very expensive compressors only have a duty cycle of 50%. So for every 15 minutes you can only run them for 7.5 minutes at an ambient temperature of 21°C.

So imagine the outback, +45°C, stinking hot car, 10 million flies, other cars racing past creating walls of dust. The last thing you need is a "supermarket" compressor with an unknown duty cycle (probably 10% if you are lucky), mounted under the bonnet with plastic hose connected directly to it & the compressor running at 140°C.

So to improve the pumping capacity of my compressor I have added larger air hoses, would still like larger but it is a lot better than standard. Increased power cable size, now have only 7% current loss. Added internal & external heat sinks & cooling fans, so air leaving the compressor is already a lot cooler. The cooler the air the less moisture the air can carry so less moisture in your tyres. A small air tank also helps a bit in drying the air due to condensation & gets you a bit of reserve between actual pumping. Additionally a moisture trap. 3 compressors are faster than one & there is redundancy if one fails. 2 of my compressors are cooled from the car's air conditioning so they start cool & also have drier air in their vicinity.

I'm not pushing the ARB compressors but at least the company is one of the few companies that actually publish meaningful figures. So if you have top quality air & electrical connections you will have a reasonable idea of how long it take to pump up your tyres to get off your knees out of the heat, flies & dust, & on your way as quick as possible.

Click image to enlarge

3 compressors real world experience for 235/60 R18 tyres per tyre:
30 seconds for 20 PSI to 34 PSI.
90 seconds for 5 PSI to 45 PSI for spare tyre.

Approximate tyre volume:
235/55R19: 45 litres
235/60R18: 50 litres
255/60R18: 60 litres
245/70R17: 65 litres
285/75R16: 100 litres

While engine is running so it is faster due to up to the 100 amp load when the compressors reach 100 PSI cutoff (85 amp average).

Custom internal & external heat sinks.


Click image to enlarge

Click image to enlarge

Other half was quite happy doing the housework!
Click image to enlarge

Click image to enlarge

One compressor is fine. If you are in the outback pumping up each day due to changing​ road conditions it gets tedious then get a dual. But go for quality, & upgrade the power cable to 6 AWG (13.3 mm2) & clamps or better still add a 50 amp (120 amp if turned off) Anderson plug. Keep the compressor as cool as you can & do not run it longer than 7.5 minutes every 15 minutes! Do not touch the hose connection on the compressor or you will burn yourself!

5 metres power cable (in other words 10 metres + & - there & back) 30 amp current at 13.85 volts has a 2.9% loss. 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 1st Oct 2018 8:41 am. Edited 1 time in total

Post #357901 1st Oct 2018 2:11 am
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LRJimmy



Member Since: 23 Jul 2018
Location: Aberdeenshire
Posts: 49

Scotland 2009 Freelander 2 TD4_e GS Manual Stornoway Grey

The video this post started with sums up why I have had so much Landrovers.
If I could have afforded them earlier in life I'd have had more. Owning & working on various other marques over the years you can tell LR were a better build - my Series 3 was built like a tank!

Having said that, I don't think the newer models are going to last as long. My wifes DS is just 2 years old but the spare wheel was starting to rust so badly and make the whole rear end look tatty as you can see it clearly. Ended up taking a wire wheel to it then repainting and while I was under there I noticed the chassis has probably as much deterioration as my 9 year old Freelander. Such a shame!!! Crying or Very sad 09 FL2 GS TD4e Current
16 DS HSE Black Current
13 FL2 GS TD4
11 FL2 GS TD4
10 FL2 XS TD4
56 FL1 TD4
72 S3, 6cyl 109 Truck Cab

Post #357907 1st Oct 2018 8:36 am
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Richard A Thackeray



Member Since: 12 Jan 2024
Location: Wakefield, West Riding of Yorkshire
Posts: 42

United Kingdom 

I saw it when it was on television
I also have it on a VHS tape somewhere

The filming of this influenced Quentin Wilson to buy a (Jave Green) Stage 1 pick-up, I still have the copy of 'LRO' that it featured in

Post #438636 21st Jan 2024 12:23 pm
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