Tamiya TT-02 type s Rally build

[danny boy]

It's hard to believe I started this thread over 5 years ago. So I thought I'd give a quick update on what the rally car is up to these days. 

 

The car was my regular rally basher for about 3 years, which it took surprisingly well. But In recent times, the local track has introduced a rally cross class. The series runs on the same off-road track as the 1/10 buggies, so it needs to be tough. It's safe to say the car has been seen some major abuse out on track, it's not easy to run a touring car around an off road course.

 

The rules dictate that you can only run brushed Tamiya motors. So out went the brushless setup and in came the Torque tuned motor. Still surprisingly fast even with this setup. The rally cars can pretty much match pace with the unlimited 2wd buggies.

 

The car needed to go on a bit of a diet. Everything not structural was stripped off. And everything that could be lightened was (note the fibreglass parts)

 

A major weight saving was made by removing the gear cover, replaced by this lightweight part that I 3D printed. (Note that some weight has gone back in behind the battery, this is to help offset the weight of the motor on the other side).

 

 

Another issue was the sloppiness of the parts. All Tamiya's have plenty of slop in them, but the three years of bashing meant this on was particularly bad. I addressed this by adding a second camber link at the front. This triangulated the suspension and majorly reduced the floppiness.

 

 

As you can see, the car does take some big hits out there on track. Most of the rear of the shell has been removed to stop it tucking in over the wheels. It's bruised and beaten but still going.

 

 

So there we are. The car is still going strong, and sees weekly use. The local track is slippery, and really favours the front motor cars (the XV-01 goes particularly well there) but this is still competitive. On good nights it can still fight at the top, I even managed to win an A-Final with it!

  

 

Edited December 3, 2022 by danny boy

[Nefarious]

3300kv with a 10BL60 or a sensored 13.5t like the Trackstar 13.5t & 80a Turbo ESC combo.

A cheap but cheerful ESC+motor powerhouse combo would be a Fire Pheonix 120a sensored with Trackstar, LRP, or my personal favorite the SkyRC Ares Pro V.3. 

I run anywhere from 6.5t to 13.5t with and without metal gears. As long as you build the diffs well, use Tamiya Antiwear Grease inside the diff (not ON the diff inside the diff case, but INSIDE the diff). You can also get DF02 metal gears or just grab a TT01 diff case and gears for metal diff internal gears on the cheap, then possibly grab a gpm or Aliexpress metal ring gear and Propeller shaft input gears. Then you can run 8.5t - 10.5t on 3s but only with your suspension set up right or you will be flipping and crashing a LOT! Shim shim shim everything. Go check out "TMM's TT02/TT02B Garage - The Builds" by googling the quoted text. He will show you how to build a rock solid TT02, tips and tricks that have allowed one of my TT02 cars to run all plastic gears with a 7.5t motor on 3s without issues for 3+ years now! 😉