SFC K wrote: Sixtys Guy wrote:
SFC K wrote:What the heck are the Flux rings and how does one remove them from an enclosed motor housing?
Right next to the Flux Capacitor.
LOL, I googled it and found some info on this. It doesn't seem to be that much of an improvement and some removed them just to save weight.
Really? Glad I don't race because this is just darn right blasphemy....
Jeff I don't think you understand. A flux ring is the metal band you see wrapped around a lot of larger brushed motors. Flux rings are used to add torque (at the cost of rpm's), so removing it makes the motor faster, but you lose some low-end torque. Traxxas used to add them to all their 550 series motors. In stock slash racing a lot of guys would take them off. They were going to give me a hard time about mine (being removed), but then Traxxas started making the 12T without a flux ring. That really saved me, as the brand new slashes coming to the track had the "new" 12T and no flux ring.
Anyways.... back to the point.
Removing a flux ring from a 12T gains like 1000 rpm, it's a big difference. I'm not sure what the rpm gain is on a 21T, but it's significant. Now keep in mind that changing gear ratio's on a clod is a pain, and the titan 21T is waaaay under-geared in a clod.... so removing it's flux ring is a win-win situation. Even with the rings removed on mine, the 21T's still have way more torque than the silver cans in my super stocker.
Some more facts on the subject.
On 4-cell lipo my terminator with
flux rings maxed out @ 17mph.
On 3-cell lipo without
flux rings top speed was.... 17 mph!
So it makes a difference. Makes me wished I had an esc that could handle 4S, I'd like to know how fast that would be.
But I went to 3S to save wieght for handling, and snow-running.
I'm probably going to end up running silver cans in this, as top speed won't change and run-time will increase, and also it will save even more wieght.
I finally got some accurate weights on my clods. My super-stocker weighs 8-lbs, and the terminator weighs 9-lbs. Care to guess which one does better in the snow?