Did a timed run on my Cart tonight. How did it do?

[JohnDaMan]

Here is the best run from the night. I have it on charge and about to try again in a bit.

Cart Mods: D&D Motor, 2/0 Battery Cables, 1/0 Motor Cables, Stock everything else

Here is the summary of the run:

overview
Max Speed 30.4 MPH
Max Acceleration 0.24 Gs

simulated drag strip
60'4.27 @ 15.5 MPH
330'12.91 @ 24.2 MPH
1/8 Mile21.35 @ 28.1 MPH
1000'29.20 @ 30.0 MPH

stepped acceleration (from 0 MPH)
0 - 10 MPH 2.21s
0 - 20 MPH 6.92s
0 - 30 MPH 27.02s

[delagem]

Very clever! Like the use of the app.

I'm a little skeptical of GPS speeds, but a nice clean graph like that shows there was no erroneous reading from a single satellite skip.

Which D&D motor are you using? Seems like a terrific result for a stock controller!

[JohnDaMan]

I thought it was pretty good for a stock cart basically. The MPH may be a smidge off but not much. I have GPS'd it before at 28.x with a different device so it is close. Here are the specs of the motor:

D&D Model Cross Ref Peak HP Max Mph Loss of Torque (stock controller)
170-011-0002 6-223A 11.1 24 -15

[JohnDaMan]

Which controller should I get? I am torn between a few. The GE FSIP 500 or 700 seems like a great buy for the price. Then I have been eyeing an Alltrax SPM-72400 because I eventually want to go 72v (this motor probably won't take that though). Or a rebuilt upgraded factory unit. I have seen up to 600a on a 1204 rebuild for a very reasonable price after core exchange.

[lmswest]

Originally Posted by JohnDaMan

I thought it was pretty good for a stock cart basically. The MPH may be a smidge off but not much. I have GPS'd it before at 28.x with a different device so it is close. Here are the specs of the motor:

D&D Model Cross Ref Peak HP Max Mph Loss of Torque (stock controller)
170-011-0002 6-223A 11.1 24 -15

What size tires?

[JohnDaMan]

All stock other than motor and wires. Yep, down to the tires too

[JohnDaMan]

After a charge last night the times dropped quite a bit in the 1/8th. The previous runs had about 5 miles on a charged pack so I am going to run again in a bit to verify those fresh charge numbers.

[JohnDaMan]

Did a few more runs. It showed a best of 18.28 and a few 18.6 and 18.8 runs. This is coming straight off the charger. Optimum conditions for sure.

[erict]

Originally Posted by JohnDaMan

Did a few more runs. It showed a best of 18.28 and a few 18.6 and 18.8 runs. This is coming straight off the charger. Optimum conditions for sure.

Is that your speed number? I thought it was higher.

[JohnDaMan]

That is my elapsed time in the 1/8th mile. I am at 10mph in 1.9x seconds. 0 to 20 is around 5.5 seconds. The 60' time hovers at 4.0x seconds and I'm at 15-16 mph