doba_s

Wondering if anyone is running Michelin Cup2 tires in 265/35/20 and 305/30/20 and how are they compare to Pilot Sport 4S.

My wagon should be coming next week and I was thinking to swap to Cup2s.

dav461

for normal city use cup2 is useless, won't grip unless warmed up, especially in rainy day you will experience troubles with handling.

E63S.Muc

dav is totally right. Not a Tyre you want on a E63s. Loud as hell. Needs time to warm up. Rain is kinda "ok" but not on a heavy car like a Wagon. Pilot Sport 4S with MO1 Label is the one you want.

doba_s

Michelin doesn’t make M01 in 305 size. I’ve had Cup2 on all of my cars for the last few years (GT4, GT3, GT3RS) but they come from Porsche with Cup2 and I didn’t bother swapping for anything else. I am just trying to see if there are any performance benefits running Cup2 on a car like E63.

dav461

ps4s is more than enough for performance car, even for track sessions.

E63S.Muc

Why would you go for 305? 295 does the job and 305 doenst drive good on OEM or 10,5 wheels. The Cup2 works on those cars you called. But not on a heavy Sedan. The AMG GTR probably but thats it.

doba_s

it’s a good tire but definitely not for the track.

E63S.Muc

Then you need a spare Set and go with a Trofeo R if you really want to push the car. As said before the car wont drive as good on 305 compared to 295. Small Tracks will hurt the PS4s and they will get hot. Im often on the nurburgring with a PB of 7:17. Going to take the E63s this or next month on this track we will see what happens.
But id say its the wrong car for a pure track setup.

doba_s

I have a dedicated track car and not looking to use wagon at the track much but would be nice to try it out just for the experience. We don’t have tracks here that long and my lap times ( Laguna Seca ) are 1:33 - 1:35. So tire like P4S after 2-3 laps gets extremely hot.

305 is definitely not an optimal size for the track setup on a 10.5 wheel but on the street you won’t feel much difference if you run slightly more pressure. With the amount of torque the car has I am just assuming it would be better to have a bit more rubber in the back.

E63S.Muc

Did you try the PS4s already on a track? i think 2-3 laps as you said and then some cooldown time. 305 will work on the street. But traction is not a problem. Not even with 900HP the AWD System does a good job. I even have full grip with Drift mode right from the start no wheel spin at all.

doba_s

hmmm ... interesting ... I have a lot lower hp/tq cars that can definitely brake loose from the start so i am surprised to hear you can keep good traction in the rwd/drift mode ... but good to know ... i'll keep 295 now and try 305 later and see what feels better ... unless you try it you wont know it lol ...

DriveAMG

The ps4s are good but they do get hot fast... I will likely move out of the Pirelli garbage that came on my car next spring to Sport Cup 2 simply because they just plain stick to the pavement like nothing else... I did drive with them in the rain without issue but I did not ever push it..

Gazwould

Michael Khan

I ran the 4s on the track before and they are really good tires. Just gonna make sure you have the psi at 28 so when you get temps up on the track they are at 33ish which is perfect. I did another track day and swapped to the cup 2s and they preformed muchhhhh better. More grip in the corners and the back didnt kick out as much. Only thing i hate about the cup 2s is that the ride home sucks, loud and the ride is hard.

I also got my car in January this year and did not get a set of winter tires and just drove my car when it was dry out. Need to get heat in the tires quick, but the few times I did drive it in the rain in the winter, the tires did great.

ronin amg

I've tried 305 on the rear and they will fit on the stock rear wheels without any rub, but the sidewalls bulge enough that you can feel them roll in corner entry no matter what pressures you run.

I now run 285 front and 295 rear this setup I find best in the canyons running with sport bikes ..

doba_s

So going 2 sizes UP in the front doesn't create sidewall flex but one size UP in the rear did ? Most of the weight is in the front of the car so it's kinda interesting ...

ronin amg

9.5" front rim is the proper size for a 285, 10" rear rim is proper size for a 295...

Do whatever you like since you have no first hand experience it is always fun watching people make mistakes even though they have been given the facts...

285/30/20 vs 265/35/20 reduces the understeer from the 265/35/20 enough to make the wagon feel dead neutral in the corners...Hey what do I know

Both front and rear sidewalls are vertical as should be.. Lowered with proper alignment.

DriveAMG

Ronin,

Did you use spacers up front with the wider tire? And if so, any issues? Can I assume with the new shoes there are no more spacers?

cheers

doba_s

I do not have experience with this particular car but played with tires sizes, rim width, tire pressure, tire load, OD and other variables for very long time.

285 is on the minimum range of the recommended rim width (9.5-10.5) with 10' being an ideal fitment according to Michelin website

https://www.michelinman.com/summer/pilot-sport-4s.html

I really appreciate your feedback but if you look at the tech specs of the 285, 9.5" is not an ideal size. 275 actually will be a better fit. But like you said if it feels good it might be the right setup for your car!

Ericshun

What car were you running these times?

ronin amg

12mm spacer up front, none on the rear... This is the first car I've ever owned with fender flairs on the wrong end..

Here is my car with the stock rims, 285/30/20 front, 295/30/20 rear....Sidewalls are identical vs stretched 265/35/20 stock size on front 9.5" rim..

doba_s

1:33 on my 991 GT3


1:35 on my GT4