Tyre pressures on loaded T32
- Thread starter Kev23
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- t32 t32 wheels tyre pressure
I run 50psi all round.
255/45/18... Even tyre wear.
heavy T32
255/45/18... Even tyre wear.
heavy T32
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I run 58psi on 215/60 R17s on my T32 campervan when fully loaded (as recommended by VW).
Well you don't want either of those pressures above haha
Likewise
Get yourself a cheap tyre pressure monitoring setup off Ali Express or Amazon.
Set the pressures and then keep an eye on how the pressures go.
If they increase quite a bit when driving, they are likely underinflated.
It's surprising how much the pressures change after a couple of miles.
Set the pressures and then keep an eye on how the pressures go.
If they increase quite a bit when driving, they are likely underinflated.
It's surprising how much the pressures change after a couple of miles.
A lot depends on the tyres. VW assumes and gives specs for “C” rated tyres, I.e Commercial. These typically have a max rating of around 65psi compared to a typical 45psi for a SUV/car tyre. I don’t think I’ve seen a low profile 20” C rated tyre, so you’re into suck it and see territory.
Well, the tyres need to be 104 load rated at least on the rear to technically comply with a T32. If they are, close to their maximum rated pressure they should be technically able to take the full van load. Speed rating is usually not an issue, given the relative slowness of our vans.
That said, it doesn't mean that they will be comfortable, that their grip would be satisfactory, or that they will be legal in your jurisdiction.
Maybe the latter is the easiest since the UK seems very tolerant for what I see on this Forum.
As others already said, once you go out of OEM specs you are essentially on your own.
Personally I wouldn't risk, and so many have done and nothing happened (demonstration by negation) doesn't work for me.
I run 60 all round as I find I get less shoulder wear ad (hopefully a few more mpg)
2016 T6 T32 LWB camper sometimes full.
2015 T5 T32 SWB work van - always full.
Both on 215/60/R17 van tyres (more tread and last longer)
103 rating for a T32.
Sorry for the mistake.
But you are misleaded about your assumpion about AI though.
I like to make my mistakes by myself
.Actually I mistakely looked at my T32 papers and sticker (see below) where the absolutely lowest load is 104 H, and doing the calculation I took one step too high on the safe side. Sorry again for that.
In effect, other T32s ARE specifed at 103 load, ONLY for the largest size tyres i.e. 235/55R17 and 255/45R18
....
That said, as you can easily verify,
often the OEM specifies a load index MUCH bigger than the minimum one resulting just dividing in half the max permitted weight on the axle.
In fact they want to enforce several characteristics by a safe margin , like that it can actually be inflated at the necessary ( x OEM calculation) pressure.
That is why i.e. the smallest tyre 205/65 R16 T is specified at a load rate of 107 .
Being the tyre smaller in volume the OEM calculates a higher rated air pressure (i.e. 59 PSI). Probably you won't easily find a tyre capable of that at 103 load rate.
44/42 in mine, lightly loaded, SUV tyres I suppose ... whatever, anyone messed around with the chalk test?
Just googled it, never heard of that before. Might give it a go.
Never tried it myself but it seems to make sense.
