squiz replied:

At 35 degrees a big red compressor will usually finish the
6'th tire before it will cut out going from 20 to 40psi. From
my understanding it will do this quiker then most.

Mark replied:

Go the Bushranger Maxair. It is nearly twice as fast as the ARB/Big Red/Blue Tongue ones. There was a good comparo about a year ago by Australian 4WD Monthly and the max air won hands down. And its slightly cheaper than most, about $350 when on special at 4WD shows.

Bushranger Maxair

I have the ARB compressor while my brother-in-law has the Bushranger Maxair and there is simply no comparison. Wish the Bushranger was around when I got my ARB one.

Cheers

Mark

crfan replied:

Yes agree go the MaxAir I have had a few different pumps and seen a lot of other pumps and its the best one I have seen around the $300-350 mark.
they have a five year warrenty but no parts available exept the filters for the intake.

Member - Ross replied:

Paul

Go with Max-air. Reinflated 6 tyres (incl CT) from about 20 to 40 before I could finish my stubby.

CheersFidei defensor

Rosco

Dennis (Brisbane) replied:

Bushranger Max-Air

Materials Plastic Case with Die Cast Air Pump
Dimensions 310mm (L) x 230mm (H) x 110mm (W)
Capacity 12 amp draw, 300 psi maximum output, 19.8 litres per minute air flow
Weight 2.4kg
Warranty 1 Year No-Fuss Warranty

Specially designed for pumping large 4x4 tyres and truck tyres.

Handy for inflating footballs, basketballs, bicycle tyres etc.

• Keep engine idling while inflating tyres to avoid unnecessary battery draw.

Powerful 12 volt motor and air pump, delivers twice the output of the average car size compressor Fast and reliable portable compressed air at an affordable price Heavy duty fan cooled high torque motor Capable of 5 hours continuous use without overheating Quality manufactured and accredited to International ISO9002 Standards Reliable high quality performance 4.4 metre long power lead and 0.9 metre long air hose Will easily reach all four wheels from your vehicle’s battery
Built-in on-off switches and pressure gauge are conveniently located at your finger tips Easy to read Direct Battery clamps with an in-line fuse, not a cigarette lighter connection No voltage drop or blown fuses in vehicle’s fuse box, easy and simple to use Handy built-in torch Allows you to conveniently operate the unit at night.
Essential 4WD equipment after lowering your vehicle’s tyre pressure to drive in sand, mud or rocky terrain

COMPARATIVE TABLE
SHOWING OPERATING SPECIFICATIONS

Specification 4X4
Power Air Average Car Size Compressor
Maximum Air Flow 19.8 Litres
per minute 11.1 Litres
per minute
Motor Torque at Maximum Power 146mNM 47mNM
Diameter of Motor 52mm 35.5mm
Fan Cooled YES NO
Maximum Operating Temperature 73ºC 176ºC
Non-Stop Operating without overheating 5 hours 30 mins
Approx. time required to inflate 10R.15 tyre from 20lbs – 35lbs 9 mins 19 mins
Power Draw 12 amps 6 amps
Maximum Pressure Output 300 P.S.I. 120 P.S.I.

David O replied:

Or you could make your own using an A/C compressor- mine does 18 to 32 psi in 28 seconds.

Member - Nigel (QLD) replied:

the bushranger seems to be the fastest, but the Blue Tongue isn't far behind and is the only continously rated compressor around - expect to pay around $350

Crackles replied:

You want the best 12 volt compressor. Get a 'Blow Jax'. 3/4 horse power, 45 amp draw and puts out 6 cfm to 150 PSI. That's nearly twice as fast as your Bushranger. Available at specialist speed shops and normally used for air suspension. Over $600 I believe. Craig............................

ianmc replied:

The Bush Ranger sounds good. Most underbonnet areas on 4wd's are becoming more cluttered by the day & if professionally serviced the extra labour costs to dismantle this stuff not to mention the roadside fixes we need at times make the portable type seem the way for me!