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Re:Andy's 2019 Blue SZ5

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30 Apr 2019 19:51 #207012 by mlines
Replied by mlines on topic Andy's 2019 Blue SZ5
But the new ones are pretty much the same size?

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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

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30 Apr 2019 19:53 #207013 by Andy2640
Replied by Andy2640 on topic Andy's 2019 Blue SZ5
Kinda... 195/80/15 to 215/75/15

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30 Apr 2019 19:59 #207014 by mlines
Replied by mlines on topic Andy's 2019 Blue SZ5
So close enough to be the same on the plate

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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
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30 Apr 2019 20:01 #207015 by Andy2640
Replied by Andy2640 on topic Andy's 2019 Blue SZ5
Great, thank you.

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  • Lambert
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  • The quickest Jimny in Harrogate...(that I own)
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30 Apr 2019 20:08 #207016 by Lambert
Replied by Lambert on topic Andy's 2019 Blue SZ5
On the vin plate it will give you the individual axle weight front and rear. On the side of the tyre it will have the maximum weight that the tyre can take at a maximum pressure. So using mathematics you know what they maximum weight that the axle will carry, divide that by the 2 tyres. You now know how much maximum weight each tyre is going to experience. So now with the information off the tyre you can work out how many psi the tyre needs to support 1 kg. Knowing that you can then multiply it by the half axle weight you worked out first. This will give you the correct psi for your tyres at maximum vehicle weight. It will be within 1 or 2 psi of the standard 26 psi all round. Simples.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
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01 May 2019 05:31 #207032 by Andy2640
Replied by Andy2640 on topic Re:Andy's 2019 Blue SZ5
Ive had some great advice here, and it is much appreciated, so feel free to scoff at my mathematical musings ;-)

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% ??

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