Originally Posted by THE PHILLY JYNX
No all 3 shoes/spring tensions are fully adjustable in a range from .7 up to 1.5 or so. After 3 weekends of racing this clutch set up I have a new outlook on what clutch tuning to track conditions really means and how when set up properly you can take full advantage of what this system allows you to do...
So in layman's terms here's an example. Think of your standard automatic transmission. A standard 3 or 4 shoe setup is like putting your car in neutral tacking 2200 rpms and dropping it in drive!!! The Buku is like being at a complete stop in drive sitting there idling and pushing on the gas. completely different feel and the end result is faster acceleration with less throttle input since we run on dirt not asphalt. Also the earlier clutch engagement means less fuel is burned from the crank case volume do to the lower rpms needed to engage the clutch with allows for a leaner buttom and better run times..I found the run time to be the little added bonus.
One of the local guys here heard good reviews about the clutch and we're thinking about looking into them. I'm curious to know more and want to see if this is something I'd like to try. Can you answer a couple questions?
1. Do you have a tachometer to gives us true numbers on clutch engagement RPMs vs other popular clutch setups? This would be useful data.
2. Which clutches have you run in comparison to the BUKU clutch? Losi? M2C?Ascendancy? Werks? Etc.... (all of these can be set for very low engagement)
3. In a traditional clutch, when you rebuild it you can get repeatable results because the springs are not adjustable. How do you get repeatable results after a clutch rebuild on the Buku clutch?
I run a soft clutch setup, and mine engages on the starter box pretty much the moment after applying throttle from idle position. On the box, the wheels begin spinning on the box, but not actually on the track.
On track the clutch needs a little more RPM to overcome the addition weight of the car.
Are you saying the BUKU clutch performs like this? OR Better?