Basically the inside edges of the tyres are wearing at a phenomenal rate. I’ve done two track days and about 500 road miles and the inside edges are nearly gone, probably MOT fail as were the tyres before after 3 days and 2000 miles.
Last but one day I did I was really anal about it and constantly checked the wear rates and adjusted pressures. I thought I’d got a reasonably even wear across the tyre which I assume was optimal to ensure the largest possible contact patch?
I ran near identical hot pressures at Llandow the other day but looking at things this morning I am a bit fed up if all I am going to get is 3 days from a set of front tyres.
Anyone make any suggestions? Should I be getting the geo looked at or doing something else?
Old tyre which failed MOT after 3 track days and a thousand or so road miles:
New tyre after 2 days and about 500 road miles, 4.2mm outside edge, 2.2mm inside:
Geo reports says…
Left front
Tow: 0
Castor: 2.6
Camber 0.8
Right front
Tow: 0
Castor: 2.9
Camber 0.6
Left rear
Tow: 1 in
Camber 1.5
Right rear
Tow: 1 in
Camber 1.6
According to a few answers on Seloc definitely not 0 tow! Off to Castle Combe on Friday and going to dip out over lunch to get it checks by a guy recommended by Merlin Motorsport.
What do you suggest I should be asking for bearing in mind he’s only going to have time to look at the tow.
Tony, that geo looks ok, certainly nothing out of the ordinary. The camber is quite low compared to what some would say but you’d be getting outer edge wear if that was the problem. So I’m going to suggest 2 possible causes:
The geo sheet isn’t what is says it is or
The geo sheet is right but is then out under load ie you have worn wishbone bushes.
[quote=Azrael]Tony, that geo looks ok, certainly nothing out of the ordinary. The camber is quite low compared to what some would say but you’d be getting outer edge wear if that was the problem. So I’m going to suggest 2 possible causes:
The geo sheet isn’t what is says it is or
The geo sheet is right but is then out under load ie you have worn wishbone bushes.
Cheers, as per my Seloc reply. Hope you are wrong about the bushes or I’ll be doing an expensive upgrade
When was the geo done? That tyre wear IMHO is caused by loads of toe out, I would suggest it would even be visable by eye it is so bad, get to your local tyre garage and get them to stick a set of tracking guages on it and see what the front track actualy is?
