I'm Lowered on ED springs. I was checking sneaky and he runs 19x8.5 with a 235/35 with front sway and camber plates on springs and had no rub. I'd really like to go with 8.5 wide but I can dip to 8 if I need. Would likely go 19's tho if I did that on some OZ.Dual Duty is going to be a compromise. There will be differing priorities.
Making this call is tricky until you get to the track to find out whether you have made the right decision.
I looked at the Dunlop Direzzas and Bridgestone RE71R for their track ability based on input from fellow track mates. I’m partial to Nitto NT01’s which I run on my Cooper S. Not an option for a dual duty setup.
Wet weather traction was high on my list of priorities. This took the Bridgestones and Direzza out of the running. I considered the Extreme Contact Sport but did not see any scores on Tire Rack to use for comparison. Price was right but he reviews were mixed. I wasn’t convinced. Michelin PSS floated to the top of my list. MP4S is a replacement for the PSS and has a 30,000 mile tread life warranty. These are supposedly fractionally better than the PSS in all categories with a tread life warranty. That’s what chose.
MP4S’s were available in limited sizes last year. 245-40-18 was the closest fit but Discount tire would not fit these to my stock 7.5J wheels, so I sprung for the Neuspeeds. 235’s are now available which is on the limit for a 7.5” wheel. This is the route I would have gone had 235’s been available. I don’t regret going this route, even considering that I had to pony up for a set of wheels. My Nagoras will be going up for sale to help offset some of that cost.
BTW- I do have a slight rub on big compressions, hard cornering and taking curb on track. On the street it’s only on big compressions. For track work 235’s will clear or 245’s on 17’s shouldn’t be a problem. ( stock suspension and ride height)
For what it is worth, I have 4 track days and 7,000 miles on my MP4S’s. Just measured tread depths. I’m at 80% on my fronts and 66% on my rears. My next set of tires will be MP4S. I will be satisfied with 20-25,000 miles from these tires. If you check out my YouTube videos you see that I drove these hard at VIR. They were protesting pretty good at the limits, so there is fair warning before things get interesting. A set of Vorschlag caster/camber plates would improve front end bite.
If I could get these in 225/15” or 16”; they would become my daily driver/wet track tires for my Cooper S.
Had I gone the dedicated track tire setup, I would have gone with 17” Neuspeed RSE5’s with Nittos or RE71R’s.
https://youtu.be/ZzKoiu7D3Ag
I feel like if I do 18x8.5 +43 on a 235/40 or 245/35 I might need a front sway to keep the rubbing away.
I'm strongly looking at conti's and pss now. My 3 tracks I'll run will be Autobahn, Blackhawk farms, and road America will be the one I run most often.
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