zombiess
10 MW
fractal said:zombiess said:So the official is now 13KV, looks like I'll be needing to swap out lower voltage higher amp controllers, but makes me glad I'm sticking with my 21.5" diameter tires.
These guys are running these same motors in their Greyborg's with 24" wheels and they seem to be doing fine based off what's been said so far. As soon as I get mine I'll start posting up as much data as possible, but 13kv puts it almost in between a Crystalite 5303 and 5302, but with much more torque and efficiency. I'm guesstimating a .08 ohm winding resistance for my simulations so it looks like if you want to run 24S you need a controller than can do 100V@100A.
With this new data and a quick remodel I'm getting 65mph @ 100V with a 94.6A current draw in a 21.5" diameter tire (Pirelli ML75s). Up a 10% grade speed drops to 59.2 mph and current draw goes to 124A, Guess someone just needs to get it on an running to get some real numbers. If the inductance is high then the amps should come down and be much easier on a controller.
I thought I saw Markobetti say he ran one on a 100V100A FET controller and got some crazy speed out of it as well. Do you mind providing us any details on what you saw current draw wise and what wheel size you ran?
I'll be running mine with the Lyen 24 FET 4115 MOSFET controller with 17 inch moped wheels and Michelin Gazelle tires (total diameter of about 23 inches). What do you think of this combo? Is it safe for the controller? Lyen says this controller is rated for 7000 watts. Thanks for any opinions.
Tough to tell, when I get my motor installed this week I'll have real actual data to give people since I think I'll be the first with one running. I'll reconfigure my setup and start out at lower voltages such as 12S, 18S first to collect data.