Air up comparo. Is it as good as the seller suggests?

[Ruffy]

Ok, i got me trial air set up from Hobzee last week and screwed it all inot me 60 series. I ran some tests at work against my workshop air system and i was happy with the performance. These results can be seen in this thread: http://www.outerlimits4x4.com/PHP_Modul ... hp?t=81238

I attanded the Navrun up Big River on the weekend and put it to the test. At the end of the comp we made it available to anyone to air up before the trip home. I had the Boss compressor, a 15litre tank and 135 psi cut off switch which cuts in at 110 psi. I aired up my four Q78s from 25 to 32. Hobzee then aired up from about 16 to 30 (from memory) in his 35 silverstones (nice performing tyre by the way.. Consider them before you but your next Simexs).. then Wombat aired up from 18 to 40 psi in 34 mongrels on two cars. The compressor was basically runnning the whole time and performed faultlessly. Most onlookers were impressed with the speed it aired up, especially to 40 psi. Admittedly the 30 to 40 psi stage took longer than 16 or 18 to 30psi but that's expected.

Then when ran the camparo with an endless system. We checked all tyres before we started and evened them all to 20 psi. we timed inflation of two tyres from 20 to 40 psi. The Boss system won the first tyre hands down as it had a tank of air to assist it. The endless sytem took 4 mins to inflate both tyres and the boss system nearly 4 and a half, although once we rechecked the pressures we found i inflated one to 44psi and the other to 40. The extra 4 psi would've taken the extra 30 secs. I've gotta say there are too many variables for a precise assessment but if the Boss system was slower it wasn't by much. It no doubtedly would have been faster to inflate the 4 tyres with the endless system as the second tyre without a tank full of air was slower than the first with the Boss, But in it's defence it was also maintaining pressure in the tank aswell as filling the tyre, so if it was compressor against compressor things would have been close to par i reckon.

In conclusion my unbiased comments would be: The boss system perfromed flawlessly and was the FASTEST 12v system i have seen.

Boss system Pro's.. Fast. Reliable. Continuous. Cheap. Good service support. mounts anywhere.

Boss system Con's.. Compressor is noisier than some other 12V compressor's on the market. ( but quieter than others!). Large compressor to fit inside vehicle.

Endless pro's... As it suggests endless amounts of air. Fast. Quiet (except for engine running). Continuous.

Endless Con's.. Have to have engine running. Maintanence required to compressor. Room under the bonnet to fit, especially late model and accessorised vehicles. Underbonnet heat affecting air lines.

For mine i'd have the Boss system.

As i final comment i want to reiterate that i am not, nor will, recieve any form of payment or discount/free products for my comments. In fact i actually bid on the last system on Ebay!. This is a completely independent trial that Hobzee asked me to do simply because i offered to do it.
Any further queries feel free to pm me.
Cheers, Dan.

[Wooders]

Shame the endless wasn't running a tank for a more like comparo. Also I'd like to ask what rpm was the engine running the endless doing when airing up?
I said by what I said in the other thread I have no doubt the Boss is a bloody fine 12Volt compressor....
But I believe the claims made comparing it to workshop compressors or engine driven compressors are excessive..... Thats all....

[beebee]

And if you're ascessing the different contenders on speed alone, then you'd be hard pressed to beat Air Up. www.air-up.com

But as far as 12Volt compressors go, the BOSS sounds very impressive!

[Ruffy]

I can't dispute what you say wooders. The engine was running at it's 800 rpm idle speed. with the engine at 1500rpm it would out do the Boss for sure.
That is the whole point behind this comparo to prove exactly what it can and can't do.
I've told it as it happened so i can't be disputed by anybody.
Like i said, This is the fastest 12V system i've seen.
As for running a tank on the endless system, it would make the first tyre quicker but the second tyre slower as the compressor has to maintain tank pressure aswell so it almost balances out.
You all asked the questions so now i've answered them, I'm not looking for i told you so's or negative feed back, i'm just passing on result you asked for.
This system has proved it's worth. It's fast, efficient and very competitively priced.

The Alloy air tank is extremely light weight. I mounted mine almost upright on the roll bar and while this did cause the check valve to rattle, it didn't move all weekend and i pushed hard over some rough terrain.


By the way, i've got a taste for this product review gig! so if you've got something you want tested in real conditions.......

[Wooders]

You all asked the questions so now i've answered them, I'm not looking for i told you so's or negative feed back, i'm just passing on result you asked for.

Ruffy,
Negative? Nope far from it. The information you've provided paints a clear picture of the product and what it is honestly capable of.
My questions were just to establish the scenario better.

As for the Endless using a tank being slower than without - nope it shouldn't be. Once you unplug the first tyre, the compressor continues to pump up the tank. But as long as the tank pressure is not LOWER than the pressure in the tyres, the tank would not be parasitic(sp?) to the airflow....ie the tank would only make it faster not slower.

[srowlandson]

And if you're ascessing the different contenders on speed alone, then you'd be hard pressed to beat Air Up. www.air-up.com

But as far as 12Volt compressors go, the BOSS sounds very impressive!

Air up is EXpensive to buy and expensive to run, takes up a lot of room and is next to Useless once the tank is empty!

[Ruffy]

Sorry wooders i wasn't refering to your comments being negative. I was just citing that i don't want negativity in this thread.

[sparky]

Where do we get these comps from & how much

[hottiemonster]

Where do we get these comps from & how much

ebay

[Ruffy]

Where do we get these comps from & how much

Hobzee off here sells them. He has an online store in Ebay.
http://stores.ebay.com.au/The4wdshop

or PM him. He'll answer eventually.

[Ruffy]

Where do we get these comps from & how much

Hobzee off here sells them. He has an online store in Ebay.
http://stores.ebay.com.au/The4wdshop

or PM him. He'll answer eventually.

Full set up is $495. Inc. Compressor, 15lt Alloy tank, pressure switch, Electric solenoid, Check valve, braided air line.
Compressor alone is $395.
Alloy 15 lt tank $75.

Or you can bid here. http://cgi.ebay.com.au/BOSS-IMPRESSOR-1 ... dZViewItem

Cheers.

[Ruffy]

Where do we get these comps from & how much

Hobzee off here sells them. He has an online store in Ebay.
http://stores.ebay.com.au/The4wdshop

or PM him. He'll answer eventually.

Full set up is $495. Inc. Compressor, 15lt Alloy tank, pressure switch, Electric solenoid, Check valve, braided air line.
Compressor alone is $395.
Alloy 15 lt tank $75. (i think)

Or you can bid here. http://cgi.ebay.com.au/BOSS-IMPRESSOR-1 ... dZViewItem

Cheers.

[ISUZUROVER]

Great product review...

So my interpretation off your results:

Boss and Endless (Sanden 508?) produce air at about the same same rate when the endless has no tank and is working at 500rpm (engine).

From this you could infer that an endless working at higher rpm, or if fitted with a tank, or if using a York in place of the Sanden, would all be faster.

But anyway it still sounds like this is the fastest 12V compressor on the market.

[bru21]

air up rocks! I am gladly sponsored by them and their product is top notch. the massive smile i get evertime i reinflate tyres before the trek home alone is worth every cent. laughing at mates taking 8mins a tyre is the best part. after a big weekend the last thing you want to do is reinflate at 8mins a tyre! and the rattle gun makes tyre swaps quick too.

great stuff. I still use an arb comp for lockers as at $160 the simplicity justifies it easily. we use air up as a back up so we can use it should the comp fail.

lastly i have used it to charge my fox shox with a "duffy" valve and it works sweet.

[Ruffy]

Great product review...

So my interpretation off your results:

Boss and Endless (Sanden 508?) produce air at about the same same rate when the endless has no tank and is working at 500rpm (engine).

From this you could infer that an endless working at higher rpm, or if fitted with a tank, or if using a York in place of the Sanden, would all be faster.

But anyway it still sounds like this is the fastest 12V compressor on the market.

That's a fair and accurate interpretation.

[QIKAZZ]

Here is some pics of mine all fitted up, I made it so it doesnt stick out any wider then the wheel arch, so when I get some storage draws made up, it should all sit in there nicely. Its fitted in the back of my 6o series, and that tank is the 15 litre, as you can see it fits in there just nice.

Cheers

Azz

[Witchdoctor]

I love how compact that set up is

[bogged]

my god thats a big tank...

[bogged]

Or you can bid here. http://cgi.ebay.com.au/BOSS-IMPRESSOR-1 ... dZViewItem

Cheers.

reading the ad, does it come with the tank?


BOSS IMPRESSOR 15 KIT by BOSS Suspension.
12v 3/4 Hp 100% Duty Air Compressor
15 Litre Alloy Tank & accessories

<snip>

15 Litre Alloy tank 70cm long, 17 cm wide and weighs just 3kg. (Also listed separately)

??

[QIKAZZ]

yes that kit comes with the compressor, 15l tank, and the braided line, one way valve, and pressure switch and electric soilenoid.

Cheers

Azz

[bogged]

yes that kit comes with the compressor, 15l tank, and the braided line, one way valve, and pressure switch and electric soilenoid.

no wonder it inflates so quick

[Momo]

If the tank is only good for storing enough air for one big tyre then
I don't get the point. Is there any good reason for having a tank?

[QIKAZZ]

I also use the air for a pressure washer, so the tank helps because it builts the tank up to high pressure, also generally 12v compressor will get hot, my little cheapy I had before this one used to get so hot, that it would really soften the air line, and when my finger was off the trigger, the pressure would build in the line, then blow the hose off the end, grr it used to drive me crazy, it didnt matter how tight i had the hose clamp, this setup comes with a steel braided hose between the compressor and the tank, therefore elinimates this problem.

Maybe its not needed in some situations, but it definatly works for me.

Cheers

Azz

[ISUZUROVER]

If the tank is only good for storing enough air for one big tyre then
I don't get the point. Is there any good reason for having a tank?

With my york compressor and air tanks, by the time you have move the tyre chuck from one tyre to the next the tanks are full - I assume the boss wold do the same, though may be a bit slower. Having a tank also helps when you want to run things like rattle guns, which need more air than the compressor can provide - so you can use it in quick bursts, and wait while it refills the tank (my York puts out enough air to run one continuously though).

[Momo]

Yeah I did consider the delay in switching tyres but didn't realize it worked that fast.
On the downside at the end of each tyre fill (beside the first) you
have had to fill the tank to the same pressure as the tyre, but then
the tank is already at a higher pressure for the next tyre.

The maths gets a little complicated so it would be good to see a time
comparison between tanked and untanked.

[Wooders]

Momo,
to give you an idea on how fast they are - we have a 10L tank on our rig and our york fills that from 0PSI to 130PSI (cutoff) in approx 10 seconds.....

[Hardy]

I got mine in, just.


I set it up not just for tyres etc but as a primary supply for the EAS (LR Air Suspension) each on their own air circuts. A solenoid valve on the old compressor power line feeds already compressed air into the system from the tank in the boot.

I couldn't get any 35A fuses, had to settle for a 5-Pack of 30A's. I've been through 2 already, just testing for leaks etc. (35A is what's recommended)
They seem to blow on extended runs - say from empty tank.

And this might sound obvious but the compressor pumps much faster with the engine running...

I haven't timed it yet but I know the old compressor would take 8 mins to fill the 10L EAS reservoir. This one takes less than 2 mins (estimate) to fill the 15L tank. Cracker!

This is the spare wheel well in the back of the Rangie.
I used small rubber grommets to help isolate the noise but I'll have to go with spring mounts or something as this baby resonates into the next suburb. No need for a dash light to see if it's running!




Hardy

[Momo]

I would use a circuit breaker if you keep blowing fuses.
If you're using the blade type fuses they dont seem to be able
to take the heat buildup of continuous high currents.

[ISUZUROVER]

The maths gets a little complicated so it would be good to see a time
comparison between tanked and untanked.

The same compressor will always be faster with a tank than without.

[Momo]

Of course you're right,

because you start with a tank at full pressure and end with
a tank at tyre pressure. Also the tank is getting pressurised
whilst changing the fitting over as previously stated.

Momo,
to give you an idea on how fast they are - we have a 10L tank on our rig and our york fills that from 0PSI to 130PSI (cutoff) in approx 10 seconds.....

I thought my cheap 72lpm China pump was pretty quick, but 10sec

Still, without knowing the % difference a tank makes to a compressor I
think it would be fair to say that its probably only worth it if you plan on
using it for more than tyres, fair comment?