what would a 90 iroc-z pull on the skidpad? ive head around .90-.92. what can i do to improve this?

 

The best thing you can do is use very sticky tires. Set up the suspension to be as neutral as possible. Negative camber in the front -1 to -2 degrees with maybe a 0 to 1/16 toe out. You do not need a larger rear sway bay. They cause a lot of excessive oversteer. Spherical bearings in all bushings. Ideally, you would run on a skidpad and measure tire temps from inside to out and the temp would be similar if you had the correct setup, making adjustments to pressure and negative camber for any corrections. Sticky tires would be the a good start though.