I have the same problem mate..
and i have 265/35/18
I bought firenza tyres and i can fry them all the way through 2nd gear without really trying i do have 212rwkw but even when i had 165rwkw i still had issues losing traction into 2nd and launching issues..
I want GRIP, my mate has 223rwkw and can rip it off the line and doesnt lose traction through gear changes, he had federals 255/17 i think u can at least go 245 with your 8" wheels. He now has Eagles or something just cheapo ones but seem to be ok.. i think it MAY have something to do with his full sick mechanical diff but not sure
Let us know if u find a solution