Running MHD stage 2+ e30 tune. Tires lose traction with the dct on, all the way through 3rd gear.
Right now I'm running nitto tires front and rear. F 245/40/18, R 275/35/18
Discount Tire suggested I run Michelin pilot power 3+ AS. With F 255/40/18 and R 285/35/18.
Oops, typo.....I meant sport. I always run pilot powers on my zx10r for track days.Michelin pilot power 3+ AS are tires for a bike. Never take advice from a tire 'shop'
It all depends on what you want. Do you want a summer tire? A tire you can't drive in the rain and need to warm up? An All Season?
I would hazard to guess the Michelin PILOT SPORT 4S is what will fit you best: https://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=Pilot+Sport+4S
i have ps4s 275s in the back and they are solid in the rain but it will spin all through 2nd and half of 3rd gear on a e50 custom tune, stock turbos. You need a proper tire if you want it to hook up in 2nd. I have Mickey Thompson Street S/S 275/40/17 and those babies hook in 2nd without needing to warm them up.
A taller sidewall in the rear will provide more straight-line traction. On e60 tune making 500wtq stock turbos, I had mild rear 255/40/17 hankook ventus tires and didn't have your spinning issue. My r888r were complete overkill (dead hook in first and lost an axle) and sketchy in any rain scenario. I ran federal 595rsrr and had pretty good traction at 600whp.
Other options:
coilovers
m3 rear control, trailing, and tension arms (not sure if you'd need m5 stuff if you have an e60)
LSD and diff brace
rear subframe bushings