Kenneth Bowman: If you run the Johnson 550 stock motors at 24 volts the motors will fail in no time at all. I bought Two Dune Racers for my Grandsons ages 3 and 5. I upgraded the stock Johnson motors to 24 volts. The excessive heat caused by using 24 volts pushing current to the stock motors causes the motors windings to burn out very quickly. My advice and experience is to only upgrade to 18 volts. When your motors fail you can buy the Johnson 550 stock motors with pinion gears attached for about $18 dollars each plus shipping and handling at mltoys .com. My Dune Racers have 15t pinion gears. You should take the motors off the gearboxes and count the teeth around the pinion gear which is installed on the motor. If you count 15 teeth you have a 15t pinion gear. I would also buy a brake reduction module for $10 plus shipping and handling from mltoys.com. The brake reduction module installs under the gas pedal in the orange wire running to the gas pedal.. This allows the rear tires to coast when the gas pedal is released instead of locking up the rear tires. This will protect the gears inside the gearbox from getting torn up. If you want more speed buy a pinion gear with more teeth. I like the performance of a 17t pinion gear in 7R gearboxes they also mesh with the 1st gear better. You can check and see what kind of pinion gears you can run in them because the gearbox case has it printed on the side. If you want to run 24 volts run a 775 motor and 17t pinion gear you can buy them at mltoys.com. All the gearboxes have stock gears in them, so don't waste your money on buying the gearboxes. I would buy a first gear that is steel to replace the stock nylon 1st gear.
MikeyMacks: Lol awesome
JasonfromMinnesota: 24 volts you might of gotten the wires wrong and connected it in para it looks slow
uncivil41: Get a higher amp 12v battery and achieve a more reliable result.
Juan V: Just got one for my daughter, can you please upload a howto video
Janelle's Channel: Crazy! I've never seen one of those move so fast. This thing has a pretty huge weight limit too for a kids toy. If I was down to my old high school weight and had that mod it would fly although my legs would prob. be super cramped lol
Calvin G: As fast as a light jog and no drifting?? Pssh
Calvin G: As fast as a light job
imad omda: Waaaw you have a good driver dood
Clugmuffer: was this filmed in Drunk-O-Vision?
anthony ventura: Put rubber on the tires..
Lincoln Newman: Yes! Went back to 18 volts, but the damage was allready done! It has run for a long time on 18, just now replacing motor and gear box on one side! $40 isn't too bad for all the work we've done, and all the fun he has on it still. I recommend taking one apart, I've learned alot about the engineering involved, and I'm no genius!
dcsmack: Did you go back down to 18v?
RellyOhBoy: Great way to burn out the motors.......
Gabe and Garrett: Love it! Great fun!
Cert: Building stuff is always in my family gene. My dad is a new york auto technician and taught me everything I need to know about cars. Now I sell car parts online to suppliment my income. So it does help when there's good guidance.