Tamiya TA07 Pro Build Part 9 – Electronics

Tamiya TA07 Pro Build Part 9 - Electronics

The Build – Part 9
Being a ‘Pro’ kit, the Tamiya TA07 Pro doesn’t come with any electronics, not even the Tamiya ESC or Mabuchi motor. That’s fine as this is a race-level kit and not including those helps keeps the price down. It also allows the builder to drop in any electronics they want. We’ll be installing some Futaba and HobbyStar components in our TC.

Build Notes:
Before installing the electronics, it’s a good idea to fire them up outside the car. This will let you center the servo and make sure everything is in proper working order.

Be mindful when clipping the ESC wires for installation; remember, the motor mount can be moved to one of three locations on the chassis and if you chop the ESC motor wires to short, you may need to replace the wires for them to reach it.

Step 1:
Tamiya TA07 Pro Build Part 9 - Electronics
CompetitionX has recently hooked up with HobbyStar, so we’ll be installing their top end 120A Turbo Competition ESC and 17.5T sensored Spec motor. Both of these are great looking products and did exceptionally well in our initial test. For more info on them, you can read our review of the Tamiya TA07 Pro that used the HobbyStar electronics. Go ahead, read it. I’ll wait.
Step 2:
Tamiya TA07 Pro Build Part 9 - Electronics
Now that you’re back from reading the review, let’s go ahead and install the HobbyStar motor. As you can see in this photo, we’ve already swapped out the .6 Mod gears with 64P and I’ve already matched up the suggested gearing for the Tamiya track. Set the mesh and tighten down the motor screws.
Step 3:
Tamiya TA07 Pro Build Part 9 - Electronics
Install the belt bearing into the spur gear cover. Do not overtighten.
Step 4:
Tamiya TA07 Pro Build Part 9 - Electronics
Install the spur gear cover. I found it easier to insert the screws into the cover, press the assembly into place and tighten the screws.
Step 5:
Tamiya TA07 Pro Build Part 9 - Electronics
Attach the servo-mounted servo saver to your servo (that’s a mouthful). The TA07 Pro has provisions for either a standard or shorty servo; I chose the shorty so I could mount all my electronics right on the chassis deck.
Step 6:
Tamiya TA07 Pro Build Part 9 - Electronics
Attach the servo to the floating servo mount.
Step 7:
Tamiya TA07 Pro Build Part 9 - Electronics
Install the servo assembly into the TA07, then pop the drag link onto the servo. If you are using a standard servo, you need to attach the additional antenna holder. If using a shorty servo, skip that step. As per the manual, I found it MUCH easier to install once I removed the chassis brace.
Step 8:
Tamiya TA07 Pro Build Part 9 - Electronics
Space is a little tight for the electronics, so you might have to be a little creative with your wiring. This is how I had to set it up, with the additional capacitor taped to the spur gear cover. Strange, but it works.
Step 9:
Tamiya TA07 Pro Build Part 9 - Electronics
Once all the wires are routed and connected, assemble and attach the motor guard.
Step 10:
Tamiya TA07 Pro Build Part 9 - Electronics
The final step is to attach the upper deck plate. Feed the antenna wire through the hole and screw the 2-piece unit into place.

Great job. I know this is a tricky step with the limited amount of space for electronics, but I’m sure your car looks great.

Tamiya TA07 Pro Build – Part 1 – Rear Suspension
Tamiya TA07 Pro Build – Part 2 – Front Suspension
Tamiya TA07 Pro Build – Part 3 – Motor Mount
Tamiya TA07 Pro Build – Part 4 – Differentials
Tamiya TA07 Pro Build – Part 5 – Motor Mount / Drive Belt
Tamiya TA07 Pro Build – Part 6 – Steering
Tamiya TA07 Pro Build – Part 7 – Knuckles / Rear Hubs
Tamiya TA07 Pro Build – Part 8 – Shocks
Tamiya TA07 Pro Build – Part 9 – Electronics
Tamiya TA07 Pro Build – Part 10 – Wheels / Body Mounts / Battery Tray

About Tony Phalen

Tony Phalen
As an avid RC enthusiast, Tony has been building, bashing and racing RC Cars for over 25 years. He has raced everything from 1:18th scale trucks to 1:5 scale motorcycles and everything in-between. He’s also worked on both sides of the industry fence; working at and 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 has transferred that knowledge to CompetitionX – the most informative RC website on the internet!
More articles by Tony Phalen

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