Home Forums Shifter Karts CR80/85 Tech Talk Reply To: CR80/85 Tech Talk

shaun s noll

i’ve heard the cr85 pistons last longer for some reason.  i have two cr80s that i run, one swedetech setup from years ago and then have a woltjer ported cylinder that has ports WAY bigger than the swedetech or my other project X ported cylinder.  I always run the upgraded wrist pin bearing and woltjer pistons from Fastech (jon is the man and always helped me out, highly recommend ordering from him)

always been curious how many hours you guys run your pistons before rebuilding them?