DIY Electric Car Forums banner

A big ol bus

2947 Views 14 Replies 10 Participants Last post by  piotrsko
I'm trying to size up the conversion of a bus.

I don't yet have said bus but it's likely to be a double decker or single decker if it has to be. Think Leyland Olympian (bus) or Setra s328 (coach).

Average MPG of these jobbies (diesel) is 8MPG

HP for these busses seems to range from 300-500hp and torque around 700nm - 1500nm

Let's say that when it's loaded up I would expect total mass of between 10 and 15 tonnes

Now for my use I would be looking to achieve a range of around 60 miles between charges, used on mostly flat roads but with the capability to make it's way up a mountain once in a while (who wouldn't want to take their bus skiing!)

50mph would be more than sufficient.

So, where would you begin with finding a motor and batteries to carry out such a project?
1 - 1 of 15 Posts
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.
1 - 1 of 15 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.