Originally Posted by rosko
you'll be beter off just getting a mazda 6
I'm with this guy...the R9-R has a big difference in front/rear downforce (which is what it was designed to do, not knocking the body) and is just too aggressive for rubber tire carpet racing, at least at my local track. I prefer the LTC-R, but for someone just starting you can't go wrong with the Mazda.
Having said that, I will take a stab at setup changes since that is what you are really asking for. First thing is to toss the diff and put in the spool up front. Heavier oil and stiffer springs up front will help, try 50wt front and 30 wt rear, 22-25 lb spring up front and 15-17 lb spring in the rear. Increase rear toe, if you are running swaybars try a thicker bar up front than the rear, if not try running one on the front only. You may want to play with ride height in addition to the above...higher in the front than in the rear will tone down the steering a bit. Now this is all ballpark stuff based on my experience at my local track, which is an 80x36 medium-bite carpet track in hot, muggy MS. Your results may vary