[reiderM]

With OEM AC motors so plentiful and cheap nowadays and aftermarket AC motors (Hyper 9, AC-50, etc.) very simple to set up and run, it seems that almost no one is looking to run a DC motor in builds nowadays. But the cool thing about DC motors is that the operating voltage and current don't seem to be nearly as set-in-stone as with AC motors. There's all kinds of grainy old videos of people pushing crazy amps through the brushed motors that used to be all anyone used in conversions.

So the question is, how much power can DC motors really push?

With heat seemingly the biggest limitation, would it not be feasible, with proper cooling, to have a massive (think 19" diameter) motor that could do 800kw+ for short bursts?

Curious as to what folks have learned from working with the good ol' DC motor.

 

[reiderM]

John metric made a 2000hp 10" motor which weighed about 200lbs if i remember.

That's my image of a DC motor.

Wow -- 2000hp with a 10" motor is wild! Do you have any links or anything?

 

[reiderM]

Think about all the steel and copper in a 19" motor--and how much that would weigh

Oh yeah I mean it's not really practical as it would be a 500+lb motor but just food for thought really