tyre pressures

[big_gordy]

i found this and thought it may be handy to even make it a sticky

http://www.tyre-pressures.com/

[Fraz]

data is a wee bit out though according to the handbook

[RobbieV]

Wrong data for my beamer

[big_gordy]

i did think it was a bit low for a v6 cali

what is the correct tyre preasure for a v6 with 17" alloys or does the size of wheel not matter

[Fraz]

was too high for mine even on full load...and yes it matters

no idea for a V6 but I run 32 back 32 front

[Callyman]

Mmm while on the subject, As you know tyre pressures on a 4x4 are more important, so would I run a higher pressure at the front to overcome engine weight or does it not matter?
Im running 32 all round at the moment.

[GreyDJ]

The GM Technical Reference Guide 2002 says for Turbo

F 40 R 38 or full load 42/49
OR
F 33 R 30 or full load 34/42

For V6

F 38 R 34 full load 39/48
OR
F 34 R 31.5 full load 36/45

So yes, run higher pressure in front tyres unless there is a heavy load in the back.

[big_gordy]

cheers grey

[Fraz]

and that's for 16 wheels

[Callyman]

Dont you think 38 is a bit high?

[stevo turbo]

all services i do at work i use 32psi, espically when you look at it this way,

what temp is it on the day of testing? do you adjust accordingly?

i watched a psi monotring system on a insignia going down the road and i a 3 mile road test it went up 5 psi all round!

i really dont think 2psi here or there makes a big difference

[Callyman]

mmm, i will change the turbo to 34/32 as the sub box in the boot weighs a ton.

having 32 all round does seem to be wearing evenly though.

[BazV6er]

i run 34 front ,31 rear