assistn' da shiftn'
when you increase secondary clutch mechanical efficiency it takes less helix angle to maintain the same shift curve.
When you run the shift assist and its working correctly you have slightly increased secondary clutch efficiency or decreased the amount of mechanical drag in the secondary cltuch. So if your clutching was pretty close before you installed the shift assist, to compensate for the shift assist allowing the clutch to shift faster you need to go to less helix angle, and most don't have that option, so a little more spring pressure can help, a stiffer secondary spring can help, lower gearing will make it worse, clean up your belt and clutch's will make it better, a longer taller track can help, tighten the track until its too tight will get your rpm back. As you increase secondary mechanical efficiency you will need stiffer spring pressures to maintain belt grip. That's likely why cat missed by so far on secondary springs ( they sent them out with way to wimpy 200lb spring in the sedcondary ) when they turned out the first DD secondaries. Old habits die hard.
The evolution of cat secondary clutch's getting more efficent in the last 20 years, we have gone from running 60 degree plus helix's on our 140hp sleds to 36 degree helix's. oh......and gone from 70lb secondary springs to 300lb ?
when you increase secondary clutch mechanical efficiency it takes less helix angle to maintain the same shift curve.
When you run the shift assist and its working correctly you have slightly increased secondary clutch efficiency or decreased the amount of mechanical drag in the secondary cltuch. So if your clutching was pretty close before you installed the shift assist, to compensate for the shift assist allowing the clutch to shift faster you need to go to less helix angle, and most don't have that option, so a little more spring pressure can help, a stiffer secondary spring can help, lower gearing will make it worse, clean up your belt and clutch's will make it better, a longer taller track can help, tighten the track until its too tight will get your rpm back. As you increase secondary mechanical efficiency you will need stiffer spring pressures to maintain belt grip. That's likely why cat missed by so far on secondary springs ( they sent them out with way to wimpy 200lb spring in the sedcondary ) when they turned out the first DD secondaries. Old habits die hard.
The evolution of cat secondary clutch's getting more efficent in the last 20 years, we have gone from running 60 degree plus helix's on our 140hp sleds to 36 degree helix's. oh......and gone from 70lb secondary springs to 300lb ?
