If you want max performance then max hp and max throttle is key, no way around it. Lots of good tuning info on the forums for that. You can get very good advise on which parts may work for your situation. You could take one machine and tune it differently for different riders, the more different the riding styles, the more different the tune. Using a larger pulley diameter system may improve things a bit, probably not a lot. These systems are kind of sized to fit. Snowmobile pulleys are quite a bit larger, both diameter and mass / weight. That larger diameter has a huge benefit. Snowmobiles have a ground speed range from 0 to triple digits using a single speed just like the GY6 system. But they also have the hp to handle those speeds. A 50cc or 150cc wont. If you were to custom build a CVT system using something more like a scaled down snowmobile design I think you might see some big improvements.
Thanks for keeping this easier to understand. I think in most cases, the rider would like to get to the engines' "usable power band" as quickly as possible,(and stay there) not necessarily WOT. How does one accomplish that? By using sliders? Heavier or lighter rollers? By varying clutch spring or variator spring tensions? Is it possible to adapt a larger or smaller variator from, say, a snowmobile or Jetski-and would there be any advantage? What effect-if any- does clutch "tuning" have on the variators performance? There's a lot to learn but I don't know where else to find some answers.
I watched a Utube video of someone grinding out ramp ends of the variator sheave. The theory seemed to be that if any restriction was removed there, then the flyweights would go farther outwards and upshift farther. Something in the CVT is going to be the mechanical limit and if happens to be the sheave ramps, then yeah the CVT shift range could be extended till it gets to whatever would be the next limit. Thing is, centrifugal force is very powerful and when added to these engine type rpm's, its something to be aware of. And messing around at the outer perimeter of the sheave is the worst place. I did some hack math. Using an example of a 5" diameter sheave and 8000 rpm. Any thing at the perimeter of the sheave would have a speed of 2094 f/s (feet per second). For some perspective, a 38 special would have a muzzle speed of 1000 f/s. A 9mm at 1258 f/s and a M1 at 2000 f/s, all approximates. If the thing did grenade, the cover is there and would be a huge safety net, more than most CVT machines have. Course from the cutch bell back is a direct connection to the drive wheel and anything that might plug that up could lock up the wheel. And the folks that turn the covers into some version of a ankle-biter are removing that safety net. I'm not much of a safety cop, but that sort of hacking is really upping the risks. Even a unnoticed crack could be catastrophic with those forces.
This storm missed me in the great white north. We normally end up with about 120" of snow every winter. I do ride year round though-as long as the roads aren't snow covered or slushy. The salt spray washes right off, and I have good cold weather gear.
Yup Hurricanes to Winter Blizzards, From were I was born and raised Im not complaining about one weather event per winter. bcy I love the islands, I love diving and just being underneath or on the Ocean, Spicy island women, love to try the Curry and I bet there is great King Fish and Wahoo to be had.. I made it in Wally world late yesterday, wow looked like a storm hit the store nearly all the Bacon and Pallets of Dog food were gone among other items. cruzed over to Food Lion a regional grocery store and there was a poor sap on a Tao Tao 50cc licker sickle, he had a open face helmut with a surgical mask on for the cold. Switched it up with some Chinese takeout..
Mid to low 20's tonight means the now sloppy snow will freeze and make the local roads even worse in the morning.. All Schools in my three county area are closed again tomorrow, many businesses have a late start time if open at all
Renner out of Florida, his mother manages the Mini Olympics amateur mx national at Gator back park in Gainesville a really big event with entires in excess of 3,000, we've met and I supported the boy in the past Great suggestion Ricky butThis is more my style..
Freezing rain for several hours last night, packed the snow down and put a nice glaze on it.. Back to big flake snow flurries this morning. Everything is closed, if a road is plowed its generally one lane only, 1,500+ power outages in my and surrounding counties, I'm stocked up good so no reason to try and go anywhere..
Act #3 we gotta a little snow storm going on. 6+ inches and blowing near 25mph.. They don't have the capacity to plow the roads to well so they get hard packed, thats fine to drive on but the hard pack turns to solid ice in short order and yer done.. Supposed to change over to freezing rain later.. so just staying put and enjoying the show..
Shiba's first snow, she 9 months or so female Doberman and going completely crazy in the snow.
Act #1 The old cooter i look after son wants d to use the Bobcat Skid Steer to move a tree that will for sure fall across the driveway once the wet snow starts. Whell he got as far as my Cabin with a huge cloud of White smoke behind him, White smoke = Water. Here we go its 30 outside and this thing is full of water, so Im the dumb arse who no's anything about this instead of the mo mo son cranking the battery dead. Pull the filter and dump the water then remove the fuel lines and crank the motor till clean fuel come out the top of the injection pump. Install lines leaving them loose up top at the injectors to bleed up there. Look at the Milk that was in the Injection Pump.. Folks crack me up on being afraid of Diesels, and crazy fear to ever crack the Fuel lines loose..om were going to loose the prime, ya you already did thats why were doing what were doing, just do it, its cold and I wanna go inside.. Boom!!!!! she fires and were off..