TA-03 Suspension R&D
Hello TA-03 owners!
I recently restored my TA03R and did some lap timings in my local track. The best laptimes for our track on a 23turn motor is about 16 and 17 seconds. I was happy to find out that my 03R was doing 17 lows consitently using a Tamiya Type RR motor. Traction was a bit short in the corners so decided to research on my 03R's suspension which I ended up modifying the lower shock mounts.
Here are few pics while I worked on the suspension:
As you can see, this is the original settings for the lower shock mounts of the TA03 series, well yes I see no other option to mount your shocks, thus giving you no variance in performance unless you change springs.
Changing springs will give you alot of difference right away, inhibiting you of the minute changes (either better or worse) compared to the benefits of changing shock positions which can give little increments of variance in suspension performance.
Here is the material I used to change the shock mount location of the TA03 lower arm. It is a carbon fiber lower shock mount plate from an HPI R40 Rear Carbon Shock Tower upgrade.
I found the use of this item for the purpose of relocating the lower shock mounts for the 03 on a wider geometry, hoping to give the suspension more bite.
Note that I did some modification on the 03's lower arm and on the CF shock mount itself. Here are the details:
- First you will have to cut-out a few plastic parts on th lower suspension arm to give-way to the CF plate.
- As you can see the CF plate, there are 2 countersunk holes on the middle and right side of the plate and a normal hole on the left... take note of the difference in length of the holes from the center hole.
- I mounted the CF plate with the farther hole on the inside
of the suspension, to avoid the wheels touching the shocks during full turn of the steering.
- I also dremelled of a few parts of the normal hole (to make it countersunk) on the opposite side of the 2 countersunk holes, to facilitate a countersunk screw so as not to protrude and be mounted flat on the suspension arm.
- After dremelling a few on the CF plate, I now mounted a 3x4mm countersunk screw mated to a ball that holds the shock mount.
- Afterwhich I then mounted the CF plate into the lower suspesion arm. Use a countersunk screw about 3x6mm long. It is your prerogative to CA glue it to add strength.
- As for the rear suspension you may do the same modification, or simply mount the lower shock mounts on the hinge pin of the rear uprights by simply replacing it with a longer bolt that will extend beyond the lower arms and mounting a ball-nut on the thread.
Here is the finished product
I have yet to test it and find out how it will perform and will post results soon: