[QUOTE=ozinaldo;11950877]
Quote:
Originally Posted by yemski
yup just got them mounted and went for a long drive. No discernible difference in ride quality between the 98Y PS2 and the 100Y PSS. I actually think the PSS is more compliant and the grip is better, but in MDM I can still get the TC light to flash in first and second. I know they need to be broken in for maximum grip though.[/QUOTE
They are brand new tires. You shouldn't even push them to limit before 300 to 500 kms, can be dangerous if you brake hard for example, happened to me  because they are still with the protective layer. Be patient and be smooth, they will grip better and better and also will ride smoother than PS2 in every condition.
Another thing I noticed I think they like a bit more air pressure than the PS2 to perform good. You can try different pressures to find the sweet spot. I go with 36 front 34 rear psi for regular city driving. |
Seeking your advice on tyre pressure. Redid my 335i suspension, it is stiff, planted, and experimenting with PS4S pressure. I did also notice that Michelin likes more pressure. Running 235/40/19 and 275/35/19. Some people use 32-33PSI front and 35 rear, I found Michelin mushy. Tried 35F 38R at 20C, became 39F and 42R at 25, so got it down 33.5F cold, 37R. Then found that the rear wear was still above the indicator (used chalk, water etc) and dropped rear to 35. 33.5F 35 R now.
My car is 3900 lbs heavy, and I have a feeling that rear is still high. You run less R than F. My next step is 34 34 all (and M3 runs 32 32 but it is also 3600lbs, 300 lbs less and wider Michelins)
May very well end up 34/34 or 34/33 which will induce more understeer. Thoughts?