Thread: TD5 Onboard Air!

Originally Posted by cols110

Thanks for that, I just found some more info on the Boss compressor on the TJM site Air Compressors it seems to flow 170lpm with no load and draws 35amps, so with a 35amp current draw it is in a similar class to the Twin Tonque at 33amp and Viar 440p(Bushranger Supermax) which has a max draw of 40 amps, so after frying both of these I doubt the Boss will be much better.

Yesterday I had a look at 2 different Warn compressors which were very nice Warn Industries - Air Products: WARN Air-Power SPI
Warn Industries - Air Products: WARN Air-Power VTC the smaller one has the same compressor as the combined winch one, but the winch one flows an extra CFM at 90psi due to the slightly bigger motor, the V twin looks to be the dogs nuts of 12v compressor, I doubt anything else will come close, I did`nt get a price on the V twin but over here it would probably come in at approx $1000, as the single is about $800.

After having a look at these and the having a play with the smaller one I am really leaning towards the Warn Power plant as it do look like a very well built unit that will do everything I want with the least amount of fuss, the only thing I don`t like is the fact is looks worse than a hat full or &rseholes.

do you run a check valve after the compressor?? if not this would be a deffinate cause of all your comp failures.

cheers phil

Yep got a check valve fitted and run approx 1.5m of hose between the compressor and the check valve to allow the pressure to bleed out thru the compressor and with the 1.5m of hose I thought it would be enough of a buffer to allow to allow the pressure to build up a bit more gradually but it does not seem to have done the trick.

OK job done, I just need to mount it and hard wire it in, it was`nt cheap at $890, but by far the easiest and least hastle to fit and I am sure it will probably have a higher output than a Sanden style compressor.

It draws around 200amps, and is rated for continious use up to 100psi so it should be absolutley perfect for what I want, with the ability to run air tools as well.

These are the spec for it.

20 CFM @ 0psi
8 CFM @ 90psi

So far I have only had a quick play with it wired up with a set of jumper leads and it is very good and a hell of a lot quieter than my other compressors as it does`nt really seem to be working very hard. It fills it`s own 1 gallon tank and shuts off in around 10seconds, so I think it will built up pressure and shut off whilst re-inflating tyres.

Looking forward to giving it a proper work out in anger.

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That looks sexy.

A 65psi check valve would help with compressor start up

Would allow the compressor to build line pressure from 0 to 65psi before having to actually fill the tank

Originally Posted by Aaron

That looks sexy.

Thats what i think.


Any inline check check valve should do the trick as the pressure switch cuts in at 70psi so by rights the check valve should have opened a few psi above that, at something like 75/80psi.

When you read the manual of the Viar 440p it does say that it has a max start up pressure of 40psi, I was aware of that but thought it would be OK, the Tomas Twin Tounge has rubber/leatherish bucket type rings and it popped one of these rubber/leatherish buckets back over the piston, it obviously was not rated for this pressure for heavy use. I am trying to get two new rings/buckets so as I can still use this as a back up, because has been a great compressor over the years, it just could`nt handle the loads of the onboard air set up.