chofmeister
1 mW
- Joined
- Jun 13, 2018
- Messages
- 10
So here is my build thread for a direct drive hub motorcycle conversion.
I started off with a 1996 Dr350. Took out 110lb worth of ICE parts and am now in the process the conversion.
I'm using a Qs8000 motor and a BAC8000 controller so the logical name I came up with was DR8000.
I've been thinking of doing a conversion since I saw the first electric motor cycle race at the Isle of Man TT race in 2010.
For this project I decided to go with a hub motor, a) for simplicity and b) I love the idea of a really silent dirbike which will not scare wildlife away when exploring the mountains.
Some Specs:
Weight of Electric parts:
QS8000: 44.8lb
BAC8000: 4.65lb
5 X 72V 24Ah NCR21700A cell batteries: 70.6lb
The total weight of the electric system would be ~120lb making the bike ~9lb lighter than the original. Although this weight will probably be accounted for with the battery casing, extra controller heatsink and msc parts.
I haven't decided if I will carry the charger on board permanently or keep it remote so that I can charge at home most of the time with the possibility of put it on the rear rack for when I want to bring it with me.
Power:
This motor is rated for 8000 watts however I'm sure as most of you know this is more of a suggestion. The batteries I am putting in can sustain 50A each so 250A sustained which would get me ~400 phase amps of continuous power and a peak power of ??? (Undecided at the moment) I'm planning on using Statorade after doing some initial tests to see how effective it is on a larger high power system like this.
Speed:
The rated top speed of the motor is ~90km/h. I hope to test this soon and will possibly implement some field weakening to go beyond this as required. My experience with smaller dirtbikes is that they feel sketchy past 90km/h so I feel the 90km/h speed limit something I can live with most of the time.
I started off with a 1996 Dr350. Took out 110lb worth of ICE parts and am now in the process the conversion.
I'm using a Qs8000 motor and a BAC8000 controller so the logical name I came up with was DR8000.
I've been thinking of doing a conversion since I saw the first electric motor cycle race at the Isle of Man TT race in 2010.
For this project I decided to go with a hub motor, a) for simplicity and b) I love the idea of a really silent dirbike which will not scare wildlife away when exploring the mountains.
Some Specs:
Weight of Electric parts:
QS8000: 44.8lb
BAC8000: 4.65lb
5 X 72V 24Ah NCR21700A cell batteries: 70.6lb
The total weight of the electric system would be ~120lb making the bike ~9lb lighter than the original. Although this weight will probably be accounted for with the battery casing, extra controller heatsink and msc parts.
I haven't decided if I will carry the charger on board permanently or keep it remote so that I can charge at home most of the time with the possibility of put it on the rear rack for when I want to bring it with me.
Power:
This motor is rated for 8000 watts however I'm sure as most of you know this is more of a suggestion. The batteries I am putting in can sustain 50A each so 250A sustained which would get me ~400 phase amps of continuous power and a peak power of ??? (Undecided at the moment) I'm planning on using Statorade after doing some initial tests to see how effective it is on a larger high power system like this.
Speed:
The rated top speed of the motor is ~90km/h. I hope to test this soon and will possibly implement some field weakening to go beyond this as required. My experience with smaller dirtbikes is that they feel sketchy past 90km/h so I feel the 90km/h speed limit something I can live with most of the time.