ORIGINAL: adz06

hey anyone who has upgraded there engine i have recently swaped out the t-15 for an lrp z16s and like it was thrashing a few of the buggys at the track but i have only ran 3-4 tanks through it before i hade to change spur gear as it was shredded. do any of use have this problem my gear mesh is correct. any ideas on how to stop it shredding i no i cod always upgrade to steel spur gear but then my clutch bell will end up shredding al the time and i no most guys on here have a 0s 18 cvrx in there and it has more power than my lrp so what do use do? many thanks adz