Snorkel and other stuff

[extreme-4x4]

surely one of you diving mates would have some pointers pete

 

[makeitfit]

Yeh but I'll get all pissed up finding out then forget it all by the time I go online next:lol
I'm pretty sure though that if you increase the pressure in the tyre, it will "weigh" slightly more BUT it will be less dense by volume. So it will effectively "float" slightly higher in the water.That's because there's a greater difference in density between the water and the tyre/air combo :thumbs
My head hurts now

 

[(RIP) PLANK]

Yeh but I'll get all pissed up finding out then forget it all by the time I go online next:lol
I'm pretty sure though that if you increase the pressure in the tyre, it will "weigh" slightly more BUT it will be less dense by volume. So it will effectively "float" slightly higher in the water.That's because there's a greater difference in density between the water and the tyre/air combo :thumbs
My head hurts now

one way to solve it, a wheel with a tyre monuted, an air line, and a big barrel of water!

and just for Zippy - PIC's Please

but bear in mind, in real terms weare talking about a difference of what 5 psi per tyre? and a vehicle in running order of 2000k plus? I still beleive the difference in the volume of air, will have no significant impact to the vehicles performance in deep water.

 

[(RIP) PLANK]

here, i told you i was a nerd!

http://en.wikipedia.org/wiki/Diving_cylinder

look at the weights chart low down the page.

it appears the more air you compress into a cylinder of a given size the less bouyant it is. SO pumping your tyres up harder, uless it made them bigger, would make them more likely to sink.

I rest my case

 

[extreme-4x4]

well im going to admit defeat ... based purelly on the fact i refuse to read all that let alone try to understand it

 

[(RIP) PLANK]

well im going to admit defeat ... based purelly on the fact i refuse to read all that let alone try to understand it

but - i bet you use it in your defence when you can't be bothered with changing tyre pressures at the next river crossing :thumbs

in a nutshell - more air squashed into same size cotainer = heavier!

but in the pressures involved in tyres and the size of the tyre, the difference is probably so small it's not worth mentioning, but saves a lot of trouble inflating and deflating for nothing.

Important Note, please read:

seldom (for seldom read never) do i get the self satisfaction of some one accepting i am right - but then again i usally only debate things with my wife and she is never [ever] wrong :augie