assault 800
Member
NEED HELP ok here is my story 2013 800 PRO R put on aftermarket pipe an power commander 5 an lost rmp's from start to finish 4000,8200 rpm's used same clutching on both setup's used my stock clutching pri. 11/66 weight's gold spring. sec. 719 helix on 70/46/42 sec.spring black 155/222 seem's to me when u lose rpm's ur losing horsepower when ur using the same clutch setup on both Brock an DR. an any anyone eles any idea's GREAT SITE THX