My tyres are really prone to squeeling

[TVR Sagaris]

I've got 12x5.5" wheels with Yokohama A539s on. If I take a corner at anything close to fast, my tyres squeel like crazy. I don't understeer/oversteer/crash in a hedge or anything, but it seems odd to me. Anyone else using these, or anyone know why they'd squeel so easily?

[guru_1071]

id guess your tracking is out

[DanGT]

I had the same tyers on 12 x 6" and never had that problem (At norma road speeds). Check for wear on the tyers back and front.

[Cooperman]

Tracking and/or tyre pressures.
I run those Yokos at 32 psi all round.

[checkmate91]

A539s were the quietest tyre I ever used. Never had a peep out of them on my mini. They remind me very much of the conti super contact 3 that I've got on my Focus RS. No noise whatsoever. Ran mine at 28/26psi on my mini, worked for me for 20k miles!

[TVR Sagaris]

I know this is late, but it may be of interest to some people.

My Mini has adjustable suspension on the front which I have been meaning to lower for ages. I lowered it today and the handling has been improved significantly and, although I haven't yet tested it properly, the tyre squeeling seems to have been reduced, if not resolved.

I'll still be getting the tracking done, but it's less desperate now.

I just need to get used to the handling again.

Edited by TVR Sagaris on Wednesday 10th November 17:11

[guru_1071]

tvr

lowering you car affects the tracking as it increases the toe in.

this is why it shows an improvement - its still worth getting it checked so you know that its correct

[cone]

guru_1071 said:

tvr

lowering you car affects the tracking as it increases the toe in.

this is why it shows an improvement - its still worth getting it checked so you know that its correct

Surely as you lower the car it lengthens the bottom arms subsequently making the track rods shorter and more toe out Rich ?

[Pvapour]

cone said:

guru_1071 said:

tvr

lowering you car affects the tracking as it increases the toe in.

this is why it shows an improvement - its still worth getting it checked so you know that its correct

Surely as you lower the car it lengthens the bottom arms subsequently making the track rods shorter and more toe out Rich ?

it does but not as much as the tie rods for the steering, hence an increase in toe in, from memory it is engineered this way to create stability on compression of the suspension ie down bumpy roads (or landing after a jump )

Edited by Pvapour on Thursday 11th November 10:41

[skunk20]

Hmm could have sworn that lowering the car gave you abit more negative camber (not enough to counteract the masses of positive camber minis have as standard) this of course in turn does affect toe, cant remember which way though.
When I had the tracking done on mine i was advised to have slight toe out, about 1/16th of an inch I think, but this was coupled with negative camber so not sure if that advise still applies, im not sure why not.

[guru_1071]

lowering a mini does also increase the camber - it also changes the castor, which changes the toe - you cannot adjust one (by any large ammount) without it affecting the other by some degree - though some of the changes are relative as they move through 'arcs' as you alter it

the trick is understanding which one alters the other and by what ammount when your setting the suspension up!

ive done two cars recently for people, both of which had 3 deg toe out - both people where amazed at how much improvement there was once it was set right!