05-10-2005, 10:15 PM
We have a 2003 birel ar28 run in the yamaha can class, 4.5 bridgestone yds tires on all four corners. Medium axle, 2 large spacers front, no torsion bars rear center bearing out. Rear track 48 inches. Ran 20LBS pressure all the way around the first weekend, 70-75 degrees, times were respectable not extremely fast. The next weekend cold low to mid 40's. Had to increase the air temps to 26 front and 28 rear to keep the kart on the track. Times were off by 2 seconds a lap from previous weekend. What is a good setup to start width and what should I do when the temps change?