500 amps at 144 volts is 72 kW or 97 horsepower of electrical power (just multiply current and voltage together). The motor is far from perfectly efficient, so the mechanical output power will be substantially lower; for example, at 80% efficiency that would be 58 kW or 77 hp.
Presumably 144 volts is the voltage available from the battery, and 500 amps is the current limit of the controller. That doesn't mean that 144 volts will make 500 amps flow in the motor, and if it does it will only be at one specific motor speed and load combination. Unfortunately NetGain's published performance data for both the WarP 7 and WarP 8 is very lacking, although the 72 V test data suggests that 144 V could drive 500 amps through either motor, producing more than 75 lb-ft of torque, up to an unknown speed.
At a wild guess, you might be able to produce 80 lb-ft of torque up to about 5000 rpm, where the output power would be about 77 hp, then reducing torque and power beyond that speed. Hopefully someone has some real data for these motors with this supply voltage, but I doubt it... objective testing doesn't seem to be a popular thing in the brushed DC motor EV world.
I’m thinking of using a solution Jr, 32 or 33 inch tire. And possibly using a rzr1000 billet front diff mounted in middle of machine, with driveshaft inlet turned up with ev motor on top. And front and rear axle outputs going to teryx front and rear diffs. Rzr1000 front diff is 3.18. I would like a top speed of at least 60 .
the WARPs are not always in stock.. I know they HAD an 8... and a few 11s ( Im a dealer)... the new HYPER9 are taking over ! I sell more of those than anything... the 8 is 20 continuous HP !!... I use these in my MGs and I have a 67 Morris MK1100.. that uses an 8..
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