Friday , 29 March 2024

Tamiya TRF419XR Touring Car Build – Part 8 – Final Assembly | CompetitionX

Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX

The final assembly has us installing the top deck, bumper, battery holders and the electronics.

Ok, on to the build!

Build Notes:
The TRF419XR allows several different options at this point; different center braces, weights, battery holders, etc. These spare parts are in a separate bag, so don’t forget to pull them out to see the options.

One thing to note – the stock spur gear that comes with the TRF419XR is not suitable for stock class racing. Top top it off, the spur gear mounting setup is a little odd as well, meaning not just any spur gear will work. I found that the Panaracer-Xenon spur gears work the best.

Since your electronics will probably not match what I have, I left the install of these out of the build. It’s pretty straightforward, however, so you shouldn’t have a problem installing yours.

Step 1:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
The first step is to assemble the servo horn and attach it to the servo. You can use the included servo saver setup or, like I did, attach a standard horn. I’m not to keen on the Tamiya servo savers – they seem to flex a bit too much for me.
Step 2:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Assemble the servo mount. Blue threadlock is suggested here.
Step 3:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Attach the servo to the mount. Blue threadlock is suggested here as well.
Step 4:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Attach the mount to the chassis. You’ll notice it’s only attached on one side – this is an example of a floating servo mount. This helps retain the correct tweak on both sides of the car. Don’t forget to pop the drag link onto the servo horn.
Step 5:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Here is where you’ll have some options; I went with the carbon brace as a starting point. I also attached the weight in the center, however I chose to do it after I had already built the car. (See the end of the manual for chassis rigidity options).
Step 6:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Attach the motor. I will be running in the 17.5T class but, since my motor hadn’t arrived at the time of the build, I dropped a R1 Wurks 10.5T in for show.
Step 7:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Assemble the belt tensioner.
Step 8:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Attach the tensioner assembly to the top deck.
Step 9:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Attach the top deck. I would NOT recommend using blue threadlock on these screws.
Step 10:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Attach the battery pad. It’s a bit long so I cut it down a little to fit.
Step 11:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Slip a wheel spacer onto the axle followed by the serrated nut. The spacers can be left off to help tune the width of your TRF419XR.
Step 12:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Attach the rear body posts.
Step 13:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Attach the front body posts to the front bumper.
Step 14:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Attach the front bumper assembly to the chassis.
Step 15:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Slide the foam bumper into place, then the carbon bumper mount. Secure with the 2 8mm screws.
Step 16:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Install the battery bumper. This can be adjusted (more or less spacers) to move the battery in or out.
Step 17:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Assemble the 2 battery holders. These additional screws can be adjusted (more or less spacers) to move the battery in or out or front to back.
Step 18:
Tamiya TRF419XR Touring Car Build - Part 8 - Final Assembly | CompetitionX
Attach the battery holders to the chassis.

And, just like that, you have a completed Tamiya TRF419XR Touring Car! Now install your electronics, mount that body and get to some racing!

Use the links below to follow each step.
Tekno ET410 Truggy Build – Opening Page
Tamiya TRF419XR Touring Car Build – Part 1 – Chassis/ Bulkheads
Tamiya TRF419XR Touring Car Build – Part 2 – Rear Differential
Tamiya TRF419XR Touring Car Build – Part 3 – Driveline
Tamiya TRF419XR Touring Car Build – Part 4 – Steering
Tamiya TRF419XR Touring Car Build – Part 5 – Suspension
Tamiya TRF419XR Touring Car Build – Part 6 – Anti-Roll Bars
Tamiya TRF419XR Touring Car Build – Part 7 – Shocks
Tamiya TRF419XR Touring Car Build – Part 8 – Final Assembly

About Tony Phalen

Tony Phalen - As an avid RC enthusiast, Tony has been building, bashing and racing RC Cars for over 30 years. He has participated in every kind of surface racing events - 1/18 scale trucks, 1/10 scale TC, Rock Racers, Rally - if it had wheels, he's raced it! He's also worked on both sides of the industry fence; collaborating with many major manufacturers (as well as being a sponsored driver) to working for a high-profile industry magazine. During this time he has learned many tricks, tips and techniques and is sharing that knowledge on CompetitionX - the most informative RC website on the internet!

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