Tyre pressure indicator

[pirelli]

check this topic i am sure you find the answer here
http://www.vwwatercooled.org.au/newf...ad.php?t=29669

[Arctra]

Hey Ultra, glad to know the tech saved you and your tyre.

As far as tyre pressures go, as I put in the care sheet, the rule of thumb (that I use anyway) is tyre manufacturers max pressure as displayed on the tyres sidewall less 10% of that max pressure. So my tyres have a max pressure of 40psi so I pump the fronts to 36psi (40 less 10% of 40).

I did some testing this weekend though, and came to the conclusion that in my Tig, with the boot emply and a full tank of fuel, I need to have the back tyres 2psi lower in order to have approximately the same contact patch. So I run 36psi on the front and 34psi on the back. But I have 215/65R16's on my Tig, you'll have to play around to figure out what you need to do on yours.

[ultra]

thanks for that guys will look at it first thing when i get home..

[ultra]

ok this is what i found , 18" wheels max psi is 51psi subtract 10% you get 45.9psi. So we are looking at the fronts at 45 psi and rear at 43 psi.

[Bora Sport]

The first thing that I would be checking is why that tyre pressure was so low in the first place.

[ultra]

Ive had a good look around the tyre and could not find anything noticable. But now that has happened i will be checking the psi of that tyre everyday to see if it is still leaking and if so will have to get it repaired..to be so low there has to be something but can't jump to any conclusions yet..

[MGV]

After a pressure check on a chilly morning, i began to wonder what sort of difference i should expect between hot (been driving), ambient (normal/average temps before driving) & COLD... (about 8 degrees when checked before a drive yesterday)?
The reason i ask is that i normally run 36psi all round, but when checked (with my own 'good' guage i keep in the glovebox) yesterday (chilly) i had a readings of only 30-31 all round!
So i did a bit of a search, found this thread, went out to the garage & read the max pressure for my tyres is 50psi & if applying the above philosophy, i should be inflating to mid 40's... Does that sound about right? Rolling on 19's, 245/40 Bridgestones.

Thanks in advance for thoughts, scientists!