Direct Drive to Diff E Revo Build

[sikeston34m]

Originally Posted by lincpimp

Good luck sike, I had good success with my POS redcat that I had the outrunner in, I chose the motor so that I could use the stock drive cups from the original trans, not much thought was given to kv, thus the need for tiny tires, LOL.

What esc will you be using? Quark for the timebeing, or something that can handle 8s lipo? Startup adjustability is the key with these outrunners. The quark on its highest settings work well, but it would have been nice to have and adjustable throttle curve like the MM. I found that very small throttle inputs caused cogging, but a little more throttle at startup solved that and it would roll very smoothly after that. Ramping up the throttle curve for the first few increments would ave solved that issue. Maybe I was using too small of a motor and too high kv. A 650kv would have worked better than the 833 and maybe a larger diameter would have helped startup.

Good luck and keep posting, I have another revo that may get something like this!!!!

Whatever happened to that Redcat anyways? Do you know what diff gear ratio that it had?

I'm going to start out with a Quark 80amp. To run 40+mph with this setup, I need to spin the motor at 7500rpm. That's going to require 6 Series Lipo. I'll try it on different battery setups. I see myself probably settling on 6S2P A123 packs, but I have alot of other Battery possibilites.

The battery trays that I'm building are rather large to give me plenty of room for ample batteries. The Battery "Area's" will be about 2 1/4" x 2" tall x 7" long. I can easily fit 10S1P A123 in there or a number of other Lipo configurations. I'm looking at other ESC options now though. I want a high voltage car controller that gets along with outrunner motors.

[lincpimp]

Originally Posted by sikeston34m

Whatever happened to that Redcat anyways? Do you know what diff gear ratio that it had?

I'm going to start out with a Quark 80amp. To run 40+mph with this setup, I need to spin the motor at 7500rpm. That's going to require 6 Series Lipo. I'll try it on different battery setups. I see myself probably settling on 6S2P A123 packs, but I have alot of other Battery possibilites.

The battery trays that I'm building are rather large to give me plenty of room for ample batteries. The Battery "Area's" will be about 2 1/4" x 2" tall x 7" long. I can easily fit 10S1P A123 in there or a number of other Lipo configurations. I'm looking at other ESC options now though. I want a high voltage car controller that gets along with outrunner motors.

The old redcat is sitting on the shelf. I have the quark 65 in my ls10 running a hacker 13l at the moment on 5s lipo. Not too sure on the diff ratio, but it was 3:1 or 3.25:1, something like that. I ended up using the new traxxas bandit anacondas on hpi wheels to get the gearing right. It was driveable on 4s and ran nicely. I may get some sort of nitro shaft driven on road car and try it out with a mm on 4s. Not sure how the MM will do on an outrunner, but we will see. I may post a thread asking if anyone has a tc they want to let go cheap, maybe a ntc3 or some sort of flat chassis shaft drive vehicle.

[sikeston34m]

Originally Posted by lincpimp

The old redcat is sitting on the shelf. I have the quark 65 in my ls10 running a hacker 13l at the moment on 5s lipo. Not too sure on the diff ratio, but it was 3:1 or 3.25:1, something like that. I ended up using the new traxxas bandit anacondas on hpi wheels to get the gearing right. It was driveable on 4s and ran nicely. I may get some sort of nitro shaft driven on road car and try it out with a mm on 4s. Not sure how the MM will do on an outrunner, but we will see. I may post a thread asking if anyone has a tc they want to let go cheap, maybe a ntc3 or some sort of flat chassis shaft drive vehicle.

Sorry to pop your bubble Linc, but the MM does NOT like outrunners at all. It has something to do with their software OR their switching rate. You can try it, but it won't work. Cogging.........Cogging.......confusion..........C ogging........Thermal shut down was my experience.

It appears to me that the Kontronik line of controllers work well with the outrunners. Judging from what I've read and seen in the forums.