Df-03ra Ultimate Rally Build.

[bsr077]

Just about finished my DF-03RA build, with some upgrades over the kit.

Started as a kit stock DF-03RA

Remove the kit motor and ESC also the dodgey CVA mini shocks, and throw it all on Ebay

Added a nice set of TRF shocks, some TT-01 Universals, DF-03 Slipper Set and Ceramic Diff balls, also an extra set of front outdrives for the rear diff.

Dremel out some room in the motor area to fit a VXL motor, end cap has to go, had to take off a lot of material to get it to mount in, also dremel away some room for the battery plugs to come through, install front buggy shell mounts

Electrics:

Hobbywing 60 Amp ESC (Splashproof)(Switch Siliconed in place)

Spektrum radio from a Losi Speed T

Traxxas Waterproof Digital Servo

Traxxas VXL Motor Geared 32/75

30mm fan siliconed on top of motor mount (heatsink bars won't fit!)

Venom Temperature monitor.

Now the inner shell goes on, standard DF-03 Keen Hawk Shell, note the brushless wires won't fit under this thing, also fit the rear win, for speed runs I'll just have this inner shell and wing on. Note the cut out on the shell which at speed forces air right onto the fan above the motor.

Then the WRX shell sits over the top nicely, also fitted some 3 racing headlights just because I can!

Fitted some Jaco slicks on for now (for car park speed runs) the Rally Blocks serve the duty off road. Using an Intellect 2s Lipo the car is good for a 60kph sprint and motor temp stays under 140 farenheight. ESC stays cool as well. Hoping if I can find a 3s Lipo to fit I can crack the 90-100kph mark.

With the inner shell it makes a VERY solid basher, fast and very little dirt finds it's way inside.

[SidewaysLS4]

Very, very nice! All the chassis parts I want to get for my RA hybrid...but first seeing what I'll break, lol. Speed cars are fun, eh? The DF03 does make for a good speed car, very nice steering can be had with just a few mods to tighten it up. Are you going to put a gyro in it for unexpected bumps and jumps?

[Butler]

Like it.

When will it be run?

[Origineelreclamebord]

Like it.

When will it be run?

It appears to me that at least the shell has seen some runs already So does the dirt on the bumper and at the fan.

Nice mods I would never even want a car to go that fast, but it's fun to see how others do that. The inner body is also an interesting mod and it's worth buying a bodyset for just that. Will you post some action pics or a vid soon, I can't wait to see this car in action

[bsr077]

It appears to me that at least the shell has seen some runs already So does the dirt on the bumper and at the fan.

Nice mods I would never even want a car to go that fast, but it's fun to see how others do that. The inner body is also an interesting mod and it's worth buying a bodyset for just that. Will you post some action pics or a vid soon, I can't wait to see this car in action

Yeah the car has had a few goes on an offroad track, the shell does hit at the front on a jump but nowhere near as bad as a TT-01, might try to firm up the front suspension, only reason I ran brushless on this is that I kept burning brushed motors in this thing as there is ****** all airflow, the VXL motor has monster torque so isn't really challenged by a touring car sized RC. I wouldn't dare put one of the Ezy-run brushless motors in here, their baby sized 380 rotors would burn up fairly quickly.

Hoping to do some You Tube stuff for it over the next weekend, will post links when I do.

Curious as to what I can do to help the steering, I have put 850 bearings in instead of those bushings, any other ideas?

[SidewaysLS4]

Regarding the steering, slop areas are the lower kingpins, and the steering arms/posts/bushings/drag link. Also the wheel axle, so 5mm shims are in order. Once you tighten up the lower kingpin (I used a greased thread-through Tamiya 5mm ballstud and a 3x12mm screw), the added drag will show just how loose the steering arms are with the stock bushings. The steering arm posts will also be flexing due to them being mounted to soft plastic. Also, the servo-driven steering arm which connects to the drag link has a large-clearance bushing setup as well (Tamiya thread-through 5mm ballstud works here as well to fix that). I found that GPM steering arms have a pretty good sizing for holding 850 ball bearings slop-free, and the GPM aluminum front suspension mount takes care of the steering post flex issue. Overall, the drag of using ballstuds is not too bad, I have a 87in/oz torque digital servo which runs the steering nicely with these mods, a Tamiya high-torque servo saver works well also. Squeezing the ballcups in some pliers before popping them on also helps. I'm fairly impressed how well the DF steering can be made to work with some precision.