clutch
you mention your motor is broken in did you use a break in bench or did you just run a couple of tanks on the car, usually it takes three or four fuel bottles before your engine is ready for race mode. where are you located because you can pm me and i'll be glad to call you and go step by step to build your clutch correctly and you will better understand it. you also need digital calipers to work on the clutch. let me know