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Re:What tyre psi you running???

  • Lambert
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02 Aug 2020 12:55 #225979 by Lambert
That's what I said. Terrain Response etc monitor wheel speed at the most basic level and use computer control over the drive line to attempt to maintain forward progress. Ctis affords control of the tyre pressure to maintain traction in a mechanical fashion. These are both off road systems designed to maintain control in situations of limited availability of grip. Running super low tyre pressure on a high traction sealed surface will overheat tyres i very short order. Hence we are having a discussion about the correct and safe pressure to set the tyre. The operating pressure that a tyre will sustain without failure is a function of the load and speed it is subject to. Too much in any given parameter will have some combination of negative effects be that uneven wear, erratic handling, undue heat build up, lack of traction or whatever its a long list. Because of this the tyre manufacturers are obliged under law to provide the necessary information to determine whether the choice of tyre is suitable for the proposed application. Because it would be impractical to have a specific tyre for every different vehicle tyres have reasonable operating ranges so that with some simple calculations of pressure relative to vehicle weight it is possible to use the same size and spec of tyre on significantly different vehicles for example a Jimny and a VW transporter.

I'm sorry if I'm labouring the point but there isn't one single pressure for one type and size of tyre to use in all situations and vehicle types. The weight of the vehicle, the type of ground it is covering and the speed at which it is doing so are all meaningful parameters for calculating the most suitable pressure for the conditions at hand.

Temeraire (2018 quasar grey automatic)
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  • CC Baxter
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02 Aug 2020 12:58 #225980 by CC Baxter
Replied by CC Baxter on topic Re:What tyre psi you running???
Whatever happened to kicking the tyres and saying "that looks about right"?
Chris

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  • Lambert
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02 Aug 2020 13:08 #225981 by Lambert
You mean my preferred method of pressure assessment? Dunno.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
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02 Aug 2020 18:44 #225994 by kirkynut
Wow! I've just read this thread. Now I'm tired! Get it? Tired?

No pressure or anything but it's an easy thing to understand!

Kirkynut

The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.

My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0
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  • Lambert
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02 Aug 2020 18:52 #225996 by Lambert
Nice!

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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  • Phattaff
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03 Aug 2020 19:42 #226042 by Phattaff
Replied by Phattaff on topic Re:What tyre psi you running???
Sorry,what was my question again?????? :-)

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