DIY air jack?

[cat007]

Has anyone ever thought of making an air jack out of something like this:

http://www.trademe.co.nz/motors/car-par ... 636315.htm

Not sure how much pressure they need, but I bet it wouldn't be hard to use a dive bottle and regulator. Quick and easy and portable solution to jack your car up at the track?

[Grrrrrrr!]

Airbags would require guidance, and travel limiting. Also need to make sure there is no way they can extend while on track. Hitting a ripple strip and having an airjack drop and dig in would be seriously not good.

[cat007]

Airbags would require guidance, and travel limiting. Also need to make sure there is no way they can extend while on track. Hitting a ripple strip and having an airjack drop and dig in would be seriously not good.

I meant something like this:

http://www.trademe.co.nz/motors/car-par ... 297222.htm

Not sure if that is using an old air bag, or if it's a specific type of bag....

But buying an air bag to make something like the above trademe link would be a cheap alternative?

[iOnic]

Same problem as other pneumatic jacks. They don't fit under anything worth having on a track.

[Bling]

Just set off airbags and get faster at swapping wheels before it hits the ground.

I can't see it being worth the hassle though really.

[Rick]

I like the idea of these, I would feel a lot safer working under the car, but I guess it depends if you need a rapid pit stop or not.