So I've got almost 2 big electric conversions finished now. The first being a sport ATV conversion, using the new QSMotor 8000w mid drive paired with an APT 96800 controller. The 2nd one, which I'm finishing up, is a sit-down reverse trike for the road. It is using the big 12kw QS hub motor, along with an APT 96800 as well.
The electric ATV is a definitely a monster. The torque and acceleration if produces is very impressive. I can shred the back tires loose from a stand still, and do wheelies with ease. I'm sure it'd easily go up any off-road hill climb I'd point it at.
As for the reverse trike, my first tests so far are not along the same lines as the ATV. The reverse trike is about 130 pounds heavier than the ATV. Trike is around 580 pounds, which isn't a huge amount. That being said, the starting torque of it is very underwhelming. It is really mushy off the get-go, and in fact, if I was to have a passenger and tried to start on a steep inclined road, I think it would even struggle to get moving. I've tested it various times on my driveway, which is a steep paved surface. It is definitely far from impressive off the line going up it. After testing up hill from a stop several times, the phase wires do get fairly warm, and the motor is also warm (though less than the phase wires). I've also tested it on a steep backroad while moving, and was able to get up to around 50mph up the steep road, which is pretty good and would seem about right. Which leads me to believe everything is working on it's supposed to.
Still, my concern is the starting torque. I realize the trike is about 130 pounds heavier than the ATV, and the trike's hub motor is basically "geared" a bit higher as well. But should the starting torque really be that weak on these things? Like I said, from my few backroad tests so far, speed while moving seems fine, it's just that it doesn't feel very torquey, whereas the ATV motor most definitely does. Both use the same controller, and I don't believe there are any settings I missed, so I'm just a little confused here.
Can anyone testify on this? Do you have a QS hub motor? Is slow or strong from a stop, and/or could you do a wheelie or burn out (without holding the brake) if you really wanted?
-Thanks!
The electric ATV is a definitely a monster. The torque and acceleration if produces is very impressive. I can shred the back tires loose from a stand still, and do wheelies with ease. I'm sure it'd easily go up any off-road hill climb I'd point it at.
As for the reverse trike, my first tests so far are not along the same lines as the ATV. The reverse trike is about 130 pounds heavier than the ATV. Trike is around 580 pounds, which isn't a huge amount. That being said, the starting torque of it is very underwhelming. It is really mushy off the get-go, and in fact, if I was to have a passenger and tried to start on a steep inclined road, I think it would even struggle to get moving. I've tested it various times on my driveway, which is a steep paved surface. It is definitely far from impressive off the line going up it. After testing up hill from a stop several times, the phase wires do get fairly warm, and the motor is also warm (though less than the phase wires). I've also tested it on a steep backroad while moving, and was able to get up to around 50mph up the steep road, which is pretty good and would seem about right. Which leads me to believe everything is working on it's supposed to.
Still, my concern is the starting torque. I realize the trike is about 130 pounds heavier than the ATV, and the trike's hub motor is basically "geared" a bit higher as well. But should the starting torque really be that weak on these things? Like I said, from my few backroad tests so far, speed while moving seems fine, it's just that it doesn't feel very torquey, whereas the ATV motor most definitely does. Both use the same controller, and I don't believe there are any settings I missed, so I'm just a little confused here.
Can anyone testify on this? Do you have a QS hub motor? Is slow or strong from a stop, and/or could you do a wheelie or burn out (without holding the brake) if you really wanted?
-Thanks!