I been running a setup that i have no idea what the helix is, I took it apart and there are no numbers or casting marks of any kind, secondary was sucking in the belt I changed springs and it was not pulling over 72-7400 rpms so I changed weights till I got it going pretty good with both clutches not getting to hot. Its 58 gram Polaris weights with red primary spring-and secondary has green spring 2nd hole and like I said no idea of helix. I'm only pulling 8000 rpms across the board when punched from stand still - I am a big guy 270 and like to trail ride, I don't race but want some punch-- Any suggestions on setups? Whats everyone running in there zrt800's?
