We run both 0.5 & 0.4 trees, so with the 0.5 tree we run a 29.5" front tire and launch at idle & higher; 0.4 tree a 28" tire and vary the starting line rpm from between 2500-3500. We fine tune the reaction time with the starting line rpm; the higher the stall speed the quicker the launch, hence lower reaction times. Change the car, not the driver. Leave at the same point on the tree.



2012 422 Allstars NSS Champion
2013 422 Allstars NSS Champion
2014 422 Allstars NSS Champion