Tamiya Agrios Project

Page 2: Upgrades!

The performance of the TXT-2 is pretty good out of box. I added these upgrades mostly because I felt like it rather than to address any actual problem.

The TXT-2 uses eight fluid filled plastic shocks. There is nothing at all wrong with them, but when I discovered the existence of these real aluminum reservoir shocks I had to have them. As far as I can tell, these are the most expensive shocks that Tamiya offers. Not too surprising given that they are very long and include functional reservoirs. You need 8 of them for this model, and the building process takes quite a long time. The filling process is also different than other shocks because the reservoir needs to be filled and the air bled.

Here is a comparison of a new and old shock. Overall length is the same but the new versions occupy a lot more space and need to be installed so that they face away from each other.

I never would have thought of this next upgrade, but Matteo's YouTube channel inspired me. He installed a pair of brushless motors with a pair of ESCs and batteries and made the truck insane. I used the newer TBLE-03s controllers. You need to disconnect the positive wire from one of the receiver connections so you don't get double BEC power to the receiver. The picture on the right shows everything connected for a test.

Here's the completed install. Power was insane! Fair warning though: I burned up one of the ESCs within about 2 minutes. I can't be sure why this happened because I never got an over temp shutdown and it worked fine for Matteo, albeit with TBLE-01 controllers. I found that removing one motor actually didn't make much difference in top speed because the truck is rev limited, not torque limited. However, the acceleration is better with two. Play at your own risk. I burned out yet another ESC a few months later so I switched to Hobbywing ESCs and have had no trouble since.

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