Wait for the CybrTrk as far as drive units go. In terms of homebrew projects, it's not that far off, lol. The premium model should be rated right around 10 tonnes continuous operation.
The Azure Dynamics van is a pipsqueak 3 tons and only has a 28kWh battery -- did they make a medium duty?
I'm lining up to do an F-450. The game here is torque at highway speed, not horsepower in terms of car-gearing....a Tesla, for example, is geared for double the top speed you need, which means you put down half the torque into the wheels as you could have...not good. Gear, if needed, your motor for a 2500-3000 RPM output and feed that into the bus transmission (hopefully a manual to make it easier) and you should be good.
You need to size cooling accordingly -- as was said, bolting on a Tesla cooling system could get you in trouble.
The Azure Dynamics van is a pipsqueak 3 tons and only has a 28kWh battery -- did they make a medium duty?
I'm lining up to do an F-450. The game here is torque at highway speed, not horsepower in terms of car-gearing....a Tesla, for example, is geared for double the top speed you need, which means you put down half the torque into the wheels as you could have...not good. Gear, if needed, your motor for a 2500-3000 RPM output and feed that into the bus transmission (hopefully a manual to make it easier) and you should be good.
You need to size cooling accordingly -- as was said, bolting on a Tesla cooling system could get you in trouble.