Buggies Gone Wild Golf Cart Forum - View Single Post

JohnnieB · 01-21-2016, 06:42 PM

Since you already have 23" tires, it's a bit late to have concerns about killing the torque, since you've already killed 22% of it.

Unless your tires are the low pressure type (<10PSI max inflation pressure), you might reach about 25MPH feeding your stock PDS motor at 36V through a DCX600 (turned down to 400A because a stock PDS motor can't tolerate a steady diet of 500A, much less 600A)

A stock, standard speed, PDS motor maxes out at about 5600 RPM at 36V, but the 22% torque loss from the 23" tires will knock that down to about 4400, or about 24.2 MPH. Of course the torque curve isn't linear, so it might be a bit faster, or slower, than that.

The D&D motor I'm running gets me about 28 MPH on 17" tires at 42V.

With 23", steer clear of high speed motors, you need a standard speed, or high torque. My motor is standard speed with +30% on the torque.

01-21-2016, 06:42 PM	#2
JohnnieB Techno-Nerd Join Date: Jun 2011 Location: West Virginia Posts: 19,654	Re: Newbie needing motor guidance Since you already have 23" tires, it's a bit late to have concerns about killing the torque, since you've already killed 22% of it. Unless your tires are the low pressure type (<10PSI max inflation pressure), you might reach about 25MPH feeding your stock PDS motor at 36V through a DCX600 (turned down to 400A because a stock PDS motor can't tolerate a steady diet of 500A, much less 600A) A stock, standard speed, PDS motor maxes out at about 5600 RPM at 36V, but the 22% torque loss from the 23" tires will knock that down to about 4400, or about 24.2 MPH. Of course the torque curve isn't linear, so it might be a bit faster, or slower, than that. The D&D motor I'm running gets me about 28 MPH on 17" tires at 42V. With 23", steer clear of high speed motors, you need a standard speed, or high torque. My motor is standard speed with +30% on the torque.