Hey all, I recently want through the process of taking my 3906 emaxx and converting it to run the MMM and combo from Castle. I was hoping for more speed and wanted more torque as well. After a lot of research and I finally bit the bullet and started building. Later I'll give you guys a list of links I found really helpful, because I kinda had a hard time finding the info that I needed. So here you go
Velcro circles with self adhesive backing works very well to hold the ESC onboard.
Robinson Racing Slipper and my DIY switch mount because it wouldn't fit in the old switch spot.
I was fortunate enough to already have 3.3 Spec axles, arms, carriers, and diffs on the truck when I got it used. Saved me a lot of time and money
So yeah that's my truck. Right now I am running 23/72 gearing which according to the speed calculator which is giving me roughly 40 mph tops.
I'm using 2 Duratrax Onyx 5000mah 2s 25c lipos in series. And a Electrifly Triton EQ charger.
The things I did:
MMM combo 2200kv
3.3 spec driveline
Modified Tmaxx center driveshafts
Unknown brand steering servo protector
Steel idlers in the tranny
Dremeled the motor mount to fit the 23t pinion
Greased the tranny
Velcro battery straps
Just for kicks, some pics of my toolbox: