PDA

View Full Version : What tyre pressures are you running?,



Quicksilver
Friday 18th March 2011, 21:29
At the moment I'm running 36psi in my 215/45/17's is this about right?.

bsr295
Friday 18th March 2011, 21:58
850R estate 38psi front 36psi rear

t5_monkey
Friday 18th March 2011, 22:19
34 front, 32 back

225/45/17

streaky744
Friday 18th March 2011, 22:22
from tyre chart i was shocked when had my new ones fitted other week.

was running 32 psi all round but should be 38psi which i now have.

made a hell of a difference to drive of the car

Rob_ioClean
Friday 18th March 2011, 22:26
on my old C70 - 38psi front 36psi rear

on my old 850 - 38psi front 38psi rear

kee1173
Friday 18th March 2011, 22:35
Whatever the wife did today, knowing her i might have to anchor the car down before it floats off...lol

cherry1809
Friday 18th March 2011, 23:42
Pmsl :D

I run 38-40 all round for the record. Handles and drives a lot better.

Quicksilver
Saturday 19th March 2011, 11:56
Thanks for the replies, I think I'll try 38psi.

v70rade
Saturday 19th March 2011, 12:12
34 psi all round - Have tried all sorts over the last 5 years, but 34 is the best compromise for mine (but it is awd). Any less and the outside shoulders wear excessively and any more and the centre tread wears down. I've used this pressure with both Goodyear and Hankooks over the years and this gets me about 12-14,000 miles from a set with even wear.

mightywolf
Saturday 19th March 2011, 18:49
Mine has 215/40/17's and ive always run at around 34psi. Might try it at 38f 36b cos it never seems to feel quite right!

Santa
Saturday 19th March 2011, 19:20
35psi all round

jardon
Saturday 19th March 2011, 23:11
38-40 front and rear with current Vredstein Wintracs

Knight Rider
Monday 21st March 2011, 01:15
These all seem really hi psi's. I think i run 32/30 on my C70. Does it really make that much of a difference?

Santa
Monday 21st March 2011, 09:15
Yeah, get better fuel economy with higher pressures lol (though lower grip)

mightywolf
Tuesday 22nd March 2011, 07:53
Is it right that the lower the profile of tyres the higher the pressure should be?

lance
Tuesday 22nd March 2011, 09:18
I used to run 37 PSI all round on all my T5s but for drag racing lower front and higher rear is meant to be the way to go, On long motorway runs fully loaded I might put upto 40 psi.
I keep meaning to check and do the v50S but they pass the thumb test and will be getting replaced soon anyway.

dicky b t5
Tuesday 22nd March 2011, 20:02
P1 v70r. 215/45/17

36f 34r

Ade
Tuesday 22nd March 2011, 20:47
Why all so high?! Do you not want any grip?

33 all round for me..... purely because factory is 33/32 (and for the sake of 1psi I can't be arsed changing the machine for the rears :lol: ).

SKIDMARKS
Saturday 26th March 2011, 07:36
Tried the high pressures on my p2 38/36 with the new suspension and it was awful.
The car was not riding 'in' the road, just rolling on the surface, not digging in so to speak. I felt every pimple on the road and was very uncomfortable.

I dropped them down to 32/30 and so much of a difference with just the steering being a bit heavier. May increase 1psi but that's about it

My kit car has little movement in the suspension and I've played for ages with the pressures and the best I have on that are 13.5/12 mind you it weighs sub 600kg