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Car Forum / Australian Car Forums / 4x4 Cars (Australian group) / October 2005

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Question regarding compressors.

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mark jb - 12 Oct 2005 11:22 GMT
I've heard of people installing compressors in the engine bay, usually for
pumping up tyres after a hard day at the beach.

Is there a fairly easy way to adapt this to an air horn setup? I've enjoyed
hi-po airhorns in the past, unfortunately the electric compressor on my set
has decided 15 years and three owners is a long enough service life.

Or has anyone had any experience with smaller electric compressors that can
generate enough sustained pressure for a loud, short blast? Certainly
doesn't need sustained usage, but needs to have enough flow to be LOUD.

TIA
-mark
Tony Smith - 12 Oct 2005 11:48 GMT
> Or has anyone had any experience with smaller electric compressors that can
> generate enough sustained pressure for a loud, short blast? Certainly
> doesn't need sustained usage, but needs to have enough flow to be LOUD.

I suspect that you may have a problem.

Most air-horn compressors are vane type, high capacity, low pressure.

Most cheap tyre compressors are piston displacement type, high pressure at
low volume.

I suspect that the only way around it would be to use a compressor with a
storage vessel to supply the "hi-flow" bit.

The cost of such a device will be well in excess of a new air-horn pump.

Tony Smith
mark jb - 12 Oct 2005 11:59 GMT
> I suspect that the only way around it would be to use a compressor with a
> storage vessel to supply the "hi-flow" bit.
>
> The cost of such a device will be well in excess of a new air-horn pump.

I was hoping against that.
Would it be feasible to use a 12v tyre pump hooked up to a smallish
secondhand home compressor type tank?
I'm thinking not, mainly due to space.

-mark
Scotty - 12 Oct 2005 12:04 GMT
> I've heard of people installing compressors in the engine bay, usually for
> pumping up tyres after a hard day at the beach.
[quoted text clipped - 10 lines]
> TIA
> -mark

Piece of cake, all you need is a compressor and a small holding tank to
allow a greater airflow. Check out Street Machine magazine, Ive seen
compressor kits there advertised for airbag systems, you may be able to
contact the advertiser and see if you can purchase a tank and compressor
only with regulators etc that you need. Nice little tanks as well, very
rice.

Hope that helps
Scotty
Birdman - 13 Oct 2005 01:13 GMT
Supercheap sell an airhorn setup WITH a tank, but you fill it at the
servo.

Other option, endless air into a ex-truck airtank and away you go..
Very cheap to setup

$40 compressor from wrecker
$40 tank from truck wrecker
then brackets..

once you have the air tank, pumpin up tires is so much easier.
 
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