Project Puller: Converting a RJ Speed Digger

Also in preparation for the Dirt Nationals pull, we opted to fix the battery situation with this car. Running a stock 6 cell stick pack creates a problem. With the bigger tires, they hit the ends of the battery when it is run in the stock location. The solution most guys were running is to create a sort of saddle pack. I hit up Pro-Match Racing, as they’re my trusted source for quality matched Nimh packs. Not many people do them anymore, but this class requires them.

They followed my instructions as to what I needed and sent me an unfinished pack (as this requires custom measurement and fitting). I’m no stranger to soldering or pack building so I was able to get it together without issue. We’ll basically be building a 4 cell and a 2 cell pack wired together.

 

First I measured how much wire I needed and soldered them to the ends of the pack, and installed the endcaps.

I then used the included shrink wrap to seal the pack up.

Heated with a hair dryer and done.

Here you can see how the stock 6 cell pack rubs the tires.

No more rubbing.

Here is the 2 cell mini pack. Cute isn’t it?

Pages: 1 2 3 4 5 6 7 8 9 10

Both comments and pings are currently closed.

6 Responses to “Project Puller: Converting a RJ Speed Digger”

  1. Jim says:

    Very nice Kevin. Puller looks awesome. Good luck this weekend!

  2. Joe Blethen says:

    So where are you guys attaching the sled to the diggers? I pull and think this would be an awesome cheap class to start. I have prob 4 of these chassis already. Thanks

    • Kevin says:

      We just use the wheelie bar. I still need to cut out the spot in the body for access though.

  3. Joe Blethen says:

    The spur gear hub you can get from outlawhobbies.com and I believe servocity.com

  4. Joe Blethen says:

    Are there other wheels and tires there using like a tlt wheel and tire? Sorry for all the questions but I think this would be a good class to add to ours . Just doing some homework before I suggest us adding this class.

  5. […] this event in 2wd Box Stock class. We also officially revamped our RJ Speed Digger into “Project Puller“. We ran the Digger last event too, using borrowed parts and Kris Button (Official RC Soup […]

Powered by WordPress