Rear Tyre wear

[tattooboy]

I seem to be wearing the middle of the rear tyres slighty quicker than the out sides ! Is this due to under or over inflation? All four tyres are the same PSI as what the manual recommends, 33 or 35?? can't remember of the top of my head now. Any body have/had the same problem running the stock Pirelli's, do not seem to have a problem with the fronts.

Now await abusive replies

[ringram]

Over inflation I believe. Are you sure its that high?

[tattooboy]

Just checked the manual, 34 Fronts and 36 backs

[007 VXR]

i run 32psi all round ..dont know when i was told to do that ..but no issues after 10k on stock tyres

[Marco1958]

Do you have a VXR8 ? if so ive just done mine . 36 all round pressures are located inside drivers door . Im now wondering is that too much ?

[tattooboy]

Marco1958 said:

Do you have a VXR8 ? if so ive just done mine . 36 all round pressures are located inside drivers door . Im now wondering is that too much ?

No, 2006 Monaro VXR

[Magic919]

Are you sure? Tread pattern has a plain band at the centre. Have you checked the wear indicators? Never had the problem and always ran Pzeros.

[tattooboy]

Magic919 said:

Are you sure? Tread pattern has a plain band at the centre. Have you checked the wear indicators? Never had the problem and always ran Pzeros.

Wouldn't say the band pattern in the middle of the rosso's is plain, see below

http://elitedirect.rtrk.co.uk/?scid=1

It's the middle part which has worn on the backs, not much in it from the sides, about 4.1mm on the outsides and 3.3 ish in the middle, as i said before, fronts seem fine !! might do the same as 007 and run them at 32 all round, just a bit starnge thats all.

[007 VXR]

poss tip.. i run stk pzero run flats ..have had tyre presure monitors fitted when i got wheels sprayed ..tell me temps and psi all the time and if you get a if psi drops my more than 2psi an alarm goes off ..handy with run flats as i found out

you just replace wheel valves and have a monitor in car about half the size of a fag packet ..cost 180.00 from demon tweaks..

[Global-i]

Don’t know how true this is but, the tyre fitter who changed my tyres suggest all tyres of these sort of widths and profiles wear out in the middle first?

[Vez]

Im sure the sticker in mine says 35 all round!

[tattooboy]

007 VXR said:

i run 32psi all round ..dont know when i was told to do that ..but no issues after 10k on stock tyres

Did you run this PSI on the stock Pirelli's or the Run Flats you have on now? Not sure I really want to drop my back tyre preasures by 4PSI !!

Having the car serviced by the Fish in a few months time so will get them to swap the wheels, fronts to backs and see of those go the same way, if they do, maybe these are suppose to wear a little quicker in the middle?? for what ever reason?? would of thought the presures mentioned in the manual would be correct, ie, 34 front 36 back

[007 VXR]

tattooboy said:

007 VXR said:

i run 32psi all round ..dont know when i was told to do that ..but no issues after 10k on stock tyres

Did you run this PSI on the stock Pirelli's or the Run Flats you have on now? Not sure I really want to drop my back tyre preasures by 4PSI !!

Having the car serviced by the Fish in a few months time so will get them to swap the wheels, fronts to backs and see of those go the same way, if they do, maybe these are suppose to wear a little quicker in the middle?? for what ever reason?? would of thought the presures mentioned in the manual would be correct, ie, 34 front 36 back

the stock pirellis pzeros on mine are run flats

[tattooboy]

ah that may explain differece in psi figures, mine are rosso's ! arnt those run flats a hard ride anyway? how would that affect your coilovers when you change tyres? another spring change possibly?

[SimonV8ster]

I think the Fish has said ignore the book and just go 35-36 all round ?

Edited by SimonV8ster on Monday 24th August 13:15

[007 VXR]

tattooboy said:

ah that may explain differece in psi figures, mine are rosso's ! arnt those run flats a hard ride anyway? how would that affect your coilovers when you change tyres? another spring change possibly?

only ever had this tyres , so wont know the diffrence ....all the spring changes are because ben at driftworks needed to know what the car was like starting with the very hard springs , and then wotk to softer ones till i was happy another spring change on the 9th sept when i change to wortec headers and rrp

[Deva Link]

Powerful RWD drive cars normally wear a bit faster in the centres - it's an issue with Mercs and they wear the edges of the fronts, but the tyres on many models the tyres can't be rotated as the sizes are staggered front/rear.

[rocklandboy]

Funny this thread has come up... I had to check my tyres at the weekend as i thought my fronts were wearing in the middle more than the outside - checked the pressures and the fronts were at 36psi... Checked the book and it said 36psi rear and 34psi front (for 3 persons and under in the car)... However, i took the Ro out for a drive last night and the front end felt a bit wooly to me... Might go back to 35 - 36 in the fronts and take the wear as part of it... O, Tyre size 245/35/19 Perreli rosso's...

[007 VXR]

However, i took the Ro out for a drive last night and the front end felt a bit wooly to me... Might go back to 35 - 36 in the fronts and take the wear as part of it... O, Tyre size 245/35/19 Perreli rosso's...[/quote]


rocklandboy ..
what do you mean by (wooly) ???
i have always said since new my car had an issue the the stearing .at speed it feels a bit slopy and driffs left to right all the time have to keep moving s/whell by about 1cm ..... laft then right just to stay in straight line

just spoke with roger and he said 35/or 36 ...
think greens told me to put 32psi in went a got the car ??

Edited by 007 VXR on Monday 24th August 17:47

[rocklandboy]

007 VXR said:

However, i took the Ro out for a drive last night and the front end felt a bit wooly to me... Might go back to 35 - 36 in the fronts and take the wear as part of it... O, Tyre size 245/35/19 Perreli rosso's...

rocklandboy ..
what do you mean by (wooly) ???
i have always said since new my car had an issue the the stearing .at speed it feels a bit slopy and driffs left to right all the time have to keep moving s/whell by about 1cm ..... laft then right just to stay in straight line

just spoke with roger and he said 35/or 36 ...
think greens told me to put 32psi in went a got the car ??

Edited by 007 VXR on Monday 24th August 17:47

To be fair it may have been the roads i was driving on mixed with the low profiles.. Not only that i haven't driven the Ro for a few days but have been driving my other car and the misses with not such low profiles which tend not to jolt from left to right, then right to left as soon as you hit a match stick laying in the road!!! I will take it for another spin before i make judgment me thinks...