Gruber
HobbyMasters
M.L. Toys
KidsWheels
Gruber
HobbyMasters
M.L. Toys
KidsWheels
HobbyMasters M.L. Toys
Gruber
KidsWheels
I want to go faster.
User avatar
By Carnau
#148206
I just got my daughter a little dune racer (it is used) and I bought a new battery and fully painted, cleaned it ect...
It's really slow... Even for a 5 year old... I can walk and beat it.

Is it best to upgrade it to 24 volts?

Or is there a motor where I can get 20 or 30% more?

Thanks in advance.


User avatar
By dlgg7
#148209
Have you checked the wiring going to the motors to make sure your getting full voltage on the high speed, 12v to each motor? I've got 2, and they were used also, so the shifter sits flat on the floor and I had to replace both switches in the shifters due to water getting to them. Test for the voltage getting to each motor with the speed at low, should be half of your battery voltage, and in high should be all of your battery voltage to each side. I have to jog to stay with mine!
User avatar
By wired
#148232
The "lil' dune racers" are 6v and only go about 2.5mph. The motors can't handle 24v (well not for long) ;) . If you have the 12v dune racer make sure the lockout screw is removed from the shifter so it can go into high (about 5mph). If you have the 12v version and need more speed I recommend going up to 18v with the stock electrical.
User avatar
By lexx0116
#148253
wired wrote:The "lil' dune racers" are 6v and only go about 2.5mph. The motors can't handle 24v (well not for long) ;) . If you have the 12v dune racer make sure the lockout screw is removed from the shifter so it can go into high (about 5mph). If you have the 12v version and need more speed I recommend going up to 18v with the stock electrical.
Here is the picture of the locked screw location (shifter area) that wired was talking about:
Capture.JPG
Capture.JPG (69.27 KiB) Viewed 966 times
User avatar
By wired
#148254
Thanks Lexx, Pictures always help :)
Way to start the year out with some teamwork!
User avatar
By Carnau
#148617
Ok so here is what I have done.
First I removed the set screw. Didn't change anything.
Next I removed the Shifter and cleaned it as best as possible and put dielectric grease on all the terminals. No change.
Then I took the whole thing apart and tested the voltage at the motors.
I have 6.9 volts on the left motor and 6.7 volts on the right motor.

What do you recommend next? If i walk at a normal pace I leave it behind. It won't let me upload images on here either for some reason.
User avatar
By Ron_J
#148651
I'd start with a process of elimination. Check the voltage out of the battery. Then on both sides of the switchs. Must be losing voltage somewhere.

I just added a 6v to my grandsons to make it a 18v and it was pretty easy. He hasn't got to try it out yet, but the spin test in the garage makes it seem like a nice improvement.

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