Tyre Squeel

[malbon]

I'm on Pilot Exaltos which I think I put in 31/32 in the front and 29/30 in the back.

When going around corners or roundabouts fairly hard the tyres start squeeling quite bad. Im nowhere near my envelope of grip as I know pretty much exactly where it is - another 12-15mph on a roundabout - tried and tested going sideways 2 or 3 times

Do I need more or less air in. The tyres are about half worn and handling in general is very good. Its just this silly squeel that makes people think im pushing it when im really not.

Any ideas?

Jon

[M100 TWO]

reduce pressures to 26.5 lb or 1.8 bar and use a good quality tyre pressure gauge for an accurate reading
john

[Scott J]

Is it due to the hot weather or does it sqeal all year.

[malbon]

Thanks - Ill lower the pressures.

I think all weather but ive probably noticed it more as im pushing it more due to the roads being extra dry and the tyres being extra sticky

[s5tuart]

I'm of the opinion that the Michelins have too hard a compound for such a light little car. They will wear really well but I didn't find they performed for my S2 at all! For a couple of months I was running a pair of Goodyears and a pair of Michelins. With the Goodyears on the front it was OK but putting Michelins on the front made it a different car to drive; harsh, slippery "soul-less" and no way could they take me laying on the power in anything other than a straight line.
It's all personal choice of course......

[clemo]

i run goodyearF1 GSD3'S...
with confidence on roundabouts..

[JIMBO]

I'm on Pilot Exaltos which I think I put in 31/32 in the front and 29/30 in the back.

When going around corners or roundabouts fairly hard the tyres start squeeling quite bad. Im nowhere near my envelope of grip as I know pretty much exactly where it is - another 12-15mph on a roundabout - tried and tested going sideways 2 or 3 times

Do I need more or less air in. The tyres are about half worn and handling in general is very good. Its just this silly squeel that makes people think im pushing it when im really not.

Any ideas?

Jon

Hi Jon,
Tyre squeeling is due to the pressure being too low, causing the tyre to run on the shoulder , causing the car to understeer which causes you to aply more lock which causes the car to understeer more, etc. etc . Are you sure the gauge used was accurate ? The hot weather and greasy, shiny road surfaces wont help either. Set the pressures when the tyres are cold and add 2-3 psi over the recomended level.
Regards
Jim

[malbon]

I'm of the opinion that the Michelins have too hard a compound for such a light little car. They will wear really well but I didn't find they performed for my S2 at all! For a couple of months I was running a pair of Goodyears and a pair of Michelins. With the Goodyears on the front it was OK but putting Michelins on the front made it a different car to drive; harsh, slippery "soul-less" and no way could they take me laying on the power in anything other than a straight line.
It's all personal choice of course......

Hmmm not sure about that one ! The Michelin Pilots feel absolutely fine to me - its just the tyre squeel I cant stand. And for power in a straight line ??? Its not a 400 bhp RWD'er !! I can nail it in any gear without worrying about control. The worst you’ll get is some understeer which isn’t hard to correct.

[malbon]

Cheers Jim.

So your saying put more air in and the M100 man is saying take some out !

What to do ??

It does feel/sound like the squeel is off the shoulder so ill put some more air in to start off with

Cheers

Jon

[ESM]

Jimbo sells tyres for a living......

[s5tuart]

The only reason tyres squeal is because they are not gripping.
Like I say, tyres are a personal choice. (take F1; some say Bridgestone some say Michelin)
As for laying on power in anything other than a straight line, that is what FWD and a car weighing less than "a good sunday morning bacon buttie" is all about.
Just have fun out there!

[M100 TWO]

Malbon what are you using 15 or 16 inch wheels?

[malbon]

Std SE wheels 15inch ?

[M100 TWO]

26.5 is the recommended pressure for 15 inch wheels start there and experiment with pressures and see how you get on if you are already on 32 you are 6 over!!!!!