Dr. Pulley Sliders WHEN TO USE THEM
Oct 3, 2020 17:56:36 GMT -5
ruckmaker, ender2009, and 1 more like this
Post by Baizy on Oct 3, 2020 17:56:36 GMT -5
ALRIGHT ITS TIME FOR SOME LEARNING
I, like many of you, got a Ruckus and immediately wanted to make it faster. An idea that is very common when searching the internet is that "SLIDERS MAKE YOU FASTER". Unfortunately that's only half true. What needs to be understood is that sliders have the POTENTIAL to make you faster, but can just as easily kill your top speed.
Lets set the scene: You just bought a Ruckus, you took it out and were disappointed that you could only hit 65km/h on the flat and it took you 3 weeks to get there. You read that if you used sliders in your Ruckus you'd go faster! So you slap some 6G sliders into your variator and you zoom up to 40km/h, but cant hit 65km/h anymore! WHAT HAPPENED?
Dr. Pulley Sliders shift the variator like a heavier weight than they are which can be both good and bad. To better explain a 6G roller may do most of its variation in the 7000-8000 RPM range and push the variator to 75% of its total travel. A slider will shift in the same rev range with the capacity to push the variator to 85% of its total travel, but normally you would need a 7G roller to displace the variator to 85% potential at 8000RPM. However the Ruckus is a 49cc 4 stroke so it may not have enough torque to actually spin the engine up to 8000RPM on the flat with your newly achieved 85% travel.
A stock Ruckus makes peak torque somewhere around 8000RPM, so that is a good baseline rpm to start tuning around if you have a stock or modified Ruckus. General knowledge regarding engine tuning teaches us that when you start to change the OE parts such as the intake or exhaust you move where peak torque lives. Sliders should only come into play when the peak torque is moved into a higher rev range because lighter weights have a harder time using up all the variators potential. So once you have established what RPM your ruck should be shifting at you can install a slider of the same weight to get the variator shifting out just a little bit more and gain a few km/h.
Post your own experiences down below and we can come up with bulletproof tuning setups for others to just use.
*Disclaimer - I was using a made up numbers for most of the post to give context. I cannot with accuracy give specific number for every Ruckster out there due to variables such as variator brand, bushing length, contra spring stiffness, or belt thickness/material. Just know that the theory outlined in this post will likley help you to be more sucessful in your tuning endeavors.
I, like many of you, got a Ruckus and immediately wanted to make it faster. An idea that is very common when searching the internet is that "SLIDERS MAKE YOU FASTER". Unfortunately that's only half true. What needs to be understood is that sliders have the POTENTIAL to make you faster, but can just as easily kill your top speed.
Lets set the scene: You just bought a Ruckus, you took it out and were disappointed that you could only hit 65km/h on the flat and it took you 3 weeks to get there. You read that if you used sliders in your Ruckus you'd go faster! So you slap some 6G sliders into your variator and you zoom up to 40km/h, but cant hit 65km/h anymore! WHAT HAPPENED?
Dr. Pulley Sliders shift the variator like a heavier weight than they are which can be both good and bad. To better explain a 6G roller may do most of its variation in the 7000-8000 RPM range and push the variator to 75% of its total travel. A slider will shift in the same rev range with the capacity to push the variator to 85% of its total travel, but normally you would need a 7G roller to displace the variator to 85% potential at 8000RPM. However the Ruckus is a 49cc 4 stroke so it may not have enough torque to actually spin the engine up to 8000RPM on the flat with your newly achieved 85% travel.
A stock Ruckus makes peak torque somewhere around 8000RPM, so that is a good baseline rpm to start tuning around if you have a stock or modified Ruckus. General knowledge regarding engine tuning teaches us that when you start to change the OE parts such as the intake or exhaust you move where peak torque lives. Sliders should only come into play when the peak torque is moved into a higher rev range because lighter weights have a harder time using up all the variators potential. So once you have established what RPM your ruck should be shifting at you can install a slider of the same weight to get the variator shifting out just a little bit more and gain a few km/h.
Post your own experiences down below and we can come up with bulletproof tuning setups for others to just use.
*Disclaimer - I was using a made up numbers for most of the post to give context. I cannot with accuracy give specific number for every Ruckster out there due to variables such as variator brand, bushing length, contra spring stiffness, or belt thickness/material. Just know that the theory outlined in this post will likley help you to be more sucessful in your tuning endeavors.