John in CR
100 TW
My favorite visitor stopped by today...the Fedex man, and man oh man did Christmas come early....a new motor for testing!!!
Not only did she arrive sooner than I thought, but she weighs over 6kg less than I expected coming in at only 14kg plus a 3kg alloy rim, another surprise. While I'm sure that seems like a boat anchor to the weight weenies, once you consider she's about 5kg lighter than Hubmonster, but has almost double the power rating in a far more compact size it's easy to see why I can't contain my excitement.
Cover to cover with the 3 bolt moto disc brake mount removed she's only about 140mm wide, so she'll be easy to fit once I work out a dropout solution, though a normal dropout won't fit. There's no way a normal dropout could stand up to this power and torque anyway, even with typical torque arms. The 1" diameter axle means no worries about snapping this axle either.
Not only is her 60mm stator packed with the same extremely high quality materials like the Mini-Monster I started selling, but she's even more efficient, boasting a peak efficiency of 94.6% . Other than the nearly as heavy much lower powered Csiro that costs over $12,000, I don't know of any hubmotor that comes even close to that kind of efficiency. eg Hubmonster's peak efficiency is only about 83%. I've dubbed the new top dog Hubmonster HE.
We've speculated about the benefits to be obtained with a motor having more than the standard 3 phases. This motor has 6 phases, and we were right about the potential benefits, because in addition to helping with efficiency, having more phases results in a smoother and more quiet take off, and the prime efficiency band is much broader too. It needs it because it's designed to haul a 350lb scooter plus rider up a 25% grade as well as cruise on the highway at 95kph without burning up with only a 67V nominal saggy LiFePo4 pack. Imagine what it will do with 20s of high power lipo and a 100lb bike.
I'm going to run it in stock form for a while and feed it with only 150A battery side compared to the 100A they run on the scooter and verify that heat isn't an issue with serious mountain climbing and highway runs. Then I'll open it up for performance mods including beefing up those six phases and let her breathe some fresh air. Depending how thick the wire bundle is for the windings will determine whether I go to 400A peak like I'm running Hubmonster or go to 500A. In either case I'll need to put the CG further in front than on my SuperV so I can get even more aggressive with the throttle. I want to get closer to being able to hang with Luke coming out of those turns. I don't want 100mph, just a similar 0-60mph.
Hopefully Hubmonster HE passes my testing, so I can let you guys in on the action too. Don't worry, this will happen quickly, because unlike the Mini-Monster this doesn't have the 2 speed switching mechanism to test for durability.
I'll keep you guys up to date as I unleash the beast.
John
Not only did she arrive sooner than I thought, but she weighs over 6kg less than I expected coming in at only 14kg plus a 3kg alloy rim, another surprise. While I'm sure that seems like a boat anchor to the weight weenies, once you consider she's about 5kg lighter than Hubmonster, but has almost double the power rating in a far more compact size it's easy to see why I can't contain my excitement.
Cover to cover with the 3 bolt moto disc brake mount removed she's only about 140mm wide, so she'll be easy to fit once I work out a dropout solution, though a normal dropout won't fit. There's no way a normal dropout could stand up to this power and torque anyway, even with typical torque arms. The 1" diameter axle means no worries about snapping this axle either.
Not only is her 60mm stator packed with the same extremely high quality materials like the Mini-Monster I started selling, but she's even more efficient, boasting a peak efficiency of 94.6% . Other than the nearly as heavy much lower powered Csiro that costs over $12,000, I don't know of any hubmotor that comes even close to that kind of efficiency. eg Hubmonster's peak efficiency is only about 83%. I've dubbed the new top dog Hubmonster HE.
We've speculated about the benefits to be obtained with a motor having more than the standard 3 phases. This motor has 6 phases, and we were right about the potential benefits, because in addition to helping with efficiency, having more phases results in a smoother and more quiet take off, and the prime efficiency band is much broader too. It needs it because it's designed to haul a 350lb scooter plus rider up a 25% grade as well as cruise on the highway at 95kph without burning up with only a 67V nominal saggy LiFePo4 pack. Imagine what it will do with 20s of high power lipo and a 100lb bike.
I'm going to run it in stock form for a while and feed it with only 150A battery side compared to the 100A they run on the scooter and verify that heat isn't an issue with serious mountain climbing and highway runs. Then I'll open it up for performance mods including beefing up those six phases and let her breathe some fresh air. Depending how thick the wire bundle is for the windings will determine whether I go to 400A peak like I'm running Hubmonster or go to 500A. In either case I'll need to put the CG further in front than on my SuperV so I can get even more aggressive with the throttle. I want to get closer to being able to hang with Luke coming out of those turns. I don't want 100mph, just a similar 0-60mph.
Hopefully Hubmonster HE passes my testing, so I can let you guys in on the action too. Don't worry, this will happen quickly, because unlike the Mini-Monster this doesn't have the 2 speed switching mechanism to test for durability.
I'll keep you guys up to date as I unleash the beast.
John