tigwelder

here's the answer. the car has a bit to much left hand pre load, this is evident from the burnout, the carstarts moving to the right in the water box. to solve this her it is. Take a floor jack with car in a level surface,i.e. pit area, jack it up 2 inches off the ground from the rear. you will see that the left rear tire is closer to the ground. Not what you want to see. on a spooled rear the tire closest to the ground will out run the other tire,causing a dirrectional change. the car darts right because the left tire is ahead of the right.simply put, make sure you are pre loading the right side tire, downn to the ground,if you crank 4 or 5 flats in the down dirrection you will correct this problem. this is a good way to check for sure which tire is hitting first. also after you load the right tire you will need to dial up the right spring on the rear coilover, since you will be extending it and taking away spring pressure this will make the car sit level and equal out the spring rates.also hit the right shock button 2 setting more than the left shock, also make sure the right wheelie bar is 1/2 lower than the left. thx Pro Mod Chassis tunner for many years