Re:Andy's 2019 Blue SZ5
Sent from my Pixel 2 XL using Tapatalk
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Please Log in or Create an account to join the conversation.
- Posts: 1125
- Thank you received: 240
- Points: 7562.00
A wise man once said...... When we are Mean, Shout at People, Lose our Tempers, Swear, and generally act like Tool Bags, Never forget ..... We are all Cavemen in Suits, Uniforms and/or Overalls ..... Living in Semi-Concrete Jungles. Andy - 2019 AD.
Please Log in or Create an account to join the conversation.
Sent from my Pixel 2 XL using Tapatalk
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Please Log in or Create an account to join the conversation.
- Posts: 1125
- Thank you received: 240
- Points: 7562.00
A wise man once said...... When we are Mean, Shout at People, Lose our Tempers, Swear, and generally act like Tool Bags, Never forget ..... We are all Cavemen in Suits, Uniforms and/or Overalls ..... Living in Semi-Concrete Jungles. Andy - 2019 AD.
Please Log in or Create an account to join the conversation.
- Posts: 6493
- Thank you received: 1292
- Points: 21954.00
-
Dreadnaught (black 2011)
Please Log in or Create an account to join the conversation.
- Posts: 1125
- Thank you received: 240
- Points: 7562.00

Ok, but as we have stated before, the 215/75/15 has a 4.5% (approx) size difference. I'm assuming it also translates into a volume % too.
So wouldn't it stand that on top of 26 PSI we should add 4.5% ??
A wise man once said...... When we are Mean, Shout at People, Lose our Tempers, Swear, and generally act like Tool Bags, Never forget ..... We are all Cavemen in Suits, Uniforms and/or Overalls ..... Living in Semi-Concrete Jungles. Andy - 2019 AD.
Please Log in or Create an account to join the conversation.
- Posts: 6493
- Thank you received: 1292
- Points: 21954.00
-
Dreadnaught (black 2011)
Please Log in or Create an account to join the conversation.
- Posts: 6493
- Thank you received: 1292
- Points: 21954.00
-
Lambert wrote: Volume and pressure are two different things. Yes a bigger tyre holds more air than a smaller one but that just means you have to have more air to achieve the same pressure. The same amount of air in a smaller space will be under more pressure but by releasing some of the air you can regulate the pressure. If that makes sense.
The volume of a tyre is consistent regardless of the volume of air you put into it. What changes is the pressure of the air as you introduce more volume of air into the fixed volume of the tyre.
Dreadnaught (black 2011)
Please Log in or Create an account to join the conversation.
- Posts: 6493
- Thank you received: 1292
- Points: 21954.00
-
Dreadnaught (black 2011)
Please Log in or Create an account to join the conversation.
- Posts: 1125
- Thank you received: 240
- Points: 7562.00
Lambert wrote: Except that that doesn't take into account the potential differences in tyre construction which affect the ability to carry weight at different pressures. Hence working it out from the specific information off the side of the tyre.
I think I get this now.
Its like this > (I THINK) If we had two rubber cubes (both rated at 30psi) The first is 1m by 1m. And we also have the other rubber cube 2m by 2m. Whilst the 2 by 2 would require more air (volume), they would both need to be under pressure of 30PSI.??
That melted my brain.
A wise man once said...... When we are Mean, Shout at People, Lose our Tempers, Swear, and generally act like Tool Bags, Never forget ..... We are all Cavemen in Suits, Uniforms and/or Overalls ..... Living in Semi-Concrete Jungles. Andy - 2019 AD.
Please Log in or Create an account to join the conversation.
- Posts: 6493
- Thank you received: 1292
- Points: 21954.00
-
- Posts: 6493
- Thank you received: 1292
- Points: 21954.00
-
Because, science.
Dreadnaught (black 2011)
Please Log in or Create an account to join the conversation.