neptronix wrote:Simply badass.. how was the motor heat after a ride like that?
Hard to say, didn't bother measuring the temp except by hand, but it was warm, but not as warm as my 9C motors got after riding with way less power and no drilled covers. Once I get some holes in the covers of this I can easily measure the temps... or just install a thermal probe. Need to find a k type with a long wire as I mentioned so I can install it in the windings to monitor it real time so I can report back the actual temps.
One of these in a Greyborg frame 17" moped wheels or 24" bicycle wheels would be a beast. My biggest problem is the torque the motor makes. Have to keep the phase amps low so it's not always wanting to wheelie. I'm also still trying to figure out why the EB3xx controllers act different when the shunt is modded. It's like the phase amps setting is completely independent of the battery amp setting, same with regen, either way, I'm quite happy.
I didn't notice any degradation in performance like I would on the 9C and I was flogging this much harder for about 10 mins. Must be pretty efficient because the battery voltage stayed higher than I thought it would after the ride, beside the typical sag of about 8V I see (now I want nano tech). I need to do some more testing and regular riding to gather stats. I'll keep everyone updated with info as I gather it, but I'm very impressed with this motor and my controller. How many people would think you can dump 12KW into a 18 FET IRFB4115 controller and have it take it just fine? It's pretty close speed wise to a 9C 2806 but with gobs of torque.
I'm going to dial this back to around 65A battery current and hopefully go for 10-15 mile normal speed ride after installing a chain (just in case) to see how it performs efficiency wise. I'm also going to fully charge the batteries and get a verified 60mph on GPS
Greyborg Hub Motor, Lyen 18FET, Customized full suspension kids MTB. Top Speed 61 MPH
9C 8x8, 24S2P LiPo, Lyen 12 FET, Diamondback Recoil Comp. Top Speed 42 MPH