my tires are spinning too much off the line and i got Yokohama Z-rated tires at 35psi all around...i dropped it to 28 and its still the same! any suggestions? and how low can i go on the tire pressure? i got a pair of 17 by 8.5 inch Dinan Rims 2 peice. Tires have more then enough thread. i was getting better results with stocks!! I Thought these rims would actually make my car slug a little but i guess not?