pilot sport 4s 305 vs 295 on stock 601m rim

[The Dane]

Hi

So I finally found a nice used pair of 601m competition wheels for my m5 zcp

I now need to buy tires, and can see the ps4s 305/30/20 is basicly the same price as the 295`s.

My car is a competition, and feel no need to tune it, but its spinning like crazy with the p-zero tires that are on the car now.

Has anyone fitted the ps4s tires in 305 on the 10 inch 601m rims ?

And what is your recormendation for a tire set up ?

Thanks

[TinTin888]

you have no problem fitting 305. It will fill out the fender's gap perfectly.

i'm currently run Cup 2 305/30/20 for the rear.

[The Dane]

Originally Posted by TinTin888

you have no problem fitting 305. It will fill out the fender's gap perfectly.

i'm currently run Cup 2 305/30/20 for the rear.

I would like to avoid spacers in the back, so that sounds great, because i dont like the gap

[texsn95]

What load rating do you pick for the 305 PS4S, 99Y or 103Y?

On Tirerack, there are a boatload of options...AO Audi, FP Ford Performance, one with no special tag, N0 Porsche, K3 Ferrari, MO Mercedes.

On Discount, there are 2 options for load ratings, 99-SL (OE option GM-Buick/Chev) and 103-XL (OE option Porsche and Ford).

What the heck do we get for ours?

[JtheW]

I’m running 305 MP4S on comp wheels with no problems at all. I’m lowered on KW HAS as well. Not sure of the load rating but I can check in the morning.

[JtheW]

Originally Posted by JtheW

I’m running 305 MP4S on comp wheels with no problems at all. I’m lowered on KW HAS as well. Not sure of the load rating but I can check in the morning.

Just checked the load rating and it’s 103Y. Fwiw I have two sets of tires, one is PSS and the other is PS4S, they’re both 305/30/20 103y. Hope that helps.