RCU Forums - Brushless Xmod Evo (Mamba) Project

this is my project for the summer. a Castle Creations Mamba 6800kV powered 2nd Gen Xmod. this motor was just sitting around in my room gethering dust so i decided to make something.

this pic is of the mount that would house the motor: This was where i had to trim plastic away from the mount so the motor would rest level to the chassis.
Attachment 2237254

the mount again, side view:
Attachment 2237255

This is the mount with differential and spur gear with rear suspension mounts:
Attachment 2237256

again with motor spacer:
Attachment 2237257

motor at rest in mount without strap:
Attachment 2237258

again with gears meshing:
Attachment 2237259

Motor in mount with strap: this part was tricky, trying to get the strap to fit around the motor i ended up using some longer screws and having a space between the strap and the chassis:
Attachment 2237260

again front view:
Attachment 2237261

next was the most difficult along with the bugs with servo centering. i had to convert a 5-wire servo into a 3-wire plug. this was done using an airplane servo:
Attachment 2237262

i took it apart and looked at the circut board. it converted 5 wires to 3 so i unsoldered the 5 wires from the pot and the motor inside the servo:
Attachment 2237263

i slipped the board down inbetween the slot where the AWD Drive shaft would normally sit and soldered the wires according:
Servo Board Stock Servo
black white
white orange
red black

Motor Stock Servo Motor
black red
white black

Attachment 2237264

Here is the whole car minus the esc and battery wired: i had a problem with the tires rubbing on the bottom of the motor, this was solved by longer screws and the hardest type of truck springs i could find.
Attachment 2237265

whole car not wired:
Attachment 2237266

car completed (messy):
Attachment 2237267

heres a vid of the tire shredding apart:
http://www.youtube.com/watch?v=2szRNs1vRdg

can anyone help me with the issue of the servo not centering? the servo was a Tactic nano from a cessna.
http://www.youtube.com/watch?v=H_AqB00LNDM

smokin the tires:
http://www.youtube.com/watch?v=Mil3BfUbkQw

im also trying to find a way to use the stock wire antenna instead of using the soft wire that comes on the receiver.

i may have found a way for the steering to center. using the pot from the tactic servo i used. i drilled out the sway arm from the old pot to fit the shaft on the new pot, i had to trim the shaft down about quarter inch to make it fit.

IT RUNS COMPLETELY PERFECTLY!!! HOLY **** I GOT THE STEERING TO CENTER!! YESSSSSS!!!!!!
http://www.youtube.com/watch?v=_aO8q770CoM

i now own possibly the fastest xmod ever.

heres a pic of the car with my Saleen body:
Attachment 2237268

The 1st test (ever) will be a speed test on 4 Energizer Ultimate Lithium cells. (9 effing bucks for 1 pack Dx) theyve shown a significant boost in power and speed vs alkalines. The body will be ON to help with aerodynamics and reduce drag. I have never driven this car outside because i dont live on a smooth road. So ill head out to the tennis courts soon.