Quote:
Originally Posted by Bowser330
Why is there such a drop in Torque (and thus the HP) after ~3000rpm
Was the amperage pulled back for some reason?
|
No this was 2000 amp zilla limit accounting for the flat line, unlimited battery pack power allows a single zilla2K-EHV to provide up to 170V to my Warp9's with the Helwig Brush system from Netgain. The taper is just normal fall off for Warp9 at 170V.
Most other dyno sheets you have seen are battery pack limited and can't push that 2000amps out to full 170V applied to motor. The drop off is what I get from a stock Netgain motor.
I will have a new chart with a little more data using the Helwig brushes. I am putting up to 199V on each warp9 now.
Quote:
Originally Posted by Bowser330
Is it due to the continuous rating of the Zilla? I would have thought the amperage would slowly taper down to the 600 continuous, not just drastically drop like that...if that is indeed the cause...
I was hoping to see the Warp9 peak horsepower to be in the 4000rpm range...we need more peoples dyno's!!! I hope you have started a trend!
|
I only experienced a zilla limit when I had the two motors in series with only a single zilla. It's around 1800amps and 340V. This chart is for two parallel Warp9's with unlimited battery pack and one zilla to each motor.
The taper is due to the motor emf building up. The pack is not the limit on this dyno chart See the PVI diagram. The zilla 2K sets the top line. Without that amp limit the torque would go up to infinity along the that same line.
Note the Impulse9's from White Zombie data peak at around the same rpm.
Metric