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Tamiya Direct Drive Touring Car

Old 02-15-2019, 07:49 AM
  #1621  
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I am the only one at my track, too Oh well, it is just about fun. With friends the body would be at risk

The last Option parts arrive slowly. Today the aluminum motor mount arrived from Hong Kong.



With its hear sink design I hope it keeps the Torque Tuned motor cool. And with its two color design it looks awesome, too.
Here is how this area looks with the plastic mount:




And with the aluminium mount:





The last Option Parts will be the TB-02 bumper and aluminum servo mounts...
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Old 02-16-2019, 10:32 AM
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I just ordered two of these. One for myself and one for my son. I have been in RC since 2001 and don't recall a contemporary race-winning body being offered for a series that I follow. This is pretty awesome. A couple years ago I was trying to find two F103GT Courage LC70 bodies. Otherwise, almost nothing available for contemporary sports prototype racing.

Our kits are still in transit.

For now I'll keep the brushed motors. I like the idea of touring car tires. We race on concrete and finding the right tires for the F1 cars is difficult. We have been using Gyros for the last few years also. This is especially since we race on a dirty, unprepared outdoor surface. The cars slide around too much or bounce out of control on a stone or stick without the gyro. That also means getting fast, digital steering servos.

Last edited by ic-racer; 02-16-2019 at 10:43 AM.
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Old 02-24-2019, 11:46 PM
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Originally Posted by MatsNorway View Post
You could be thinking of the F104.
​​​​​​You're right, it was F104x1 specific part... My bad.

Originally Posted by wtcc View Post
One more thing that was mentioned/suggested to do to make the car more stable to drive, was to proper balance the pod.
Nice job, whole cqr looks great Too bad it's really outdated platform now... I wish Tamiya made some update
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Old 02-25-2019, 01:41 AM
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Thanks!
Outdated or not, the car ran pretty good last saturday with the changes I made. I could press much harder than last time and even wished for a stronger motor.
Unfortunately 190mm width is a little too narrow for indoor high grip carpet. Whatever, the car was stable and fun to drive. I had the brake up to 90% and steering got more throw, too.
Really like it. The look of the body then wants you to never stop driving.

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Old 03-12-2019, 07:13 AM
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Look what I finally got


Tamiya 51047 TB-02 bumper



I thought, I will never have it on the car after one shop in Austria couldn’t find it in their archives. There it would have cost nearly 19€. In our german Tamiya Fb group one shop owner still had it and sold it for 6€ including shipping A big thank you to Dai Sakaguchi for this deal!

Now my F103GT is complete. Here a comparison to the actual catalogue picture:





I love it
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Old 03-12-2019, 07:30 AM
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Looks sooo good
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Old 03-12-2019, 07:33 AM
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Is it wrong that I want to see these chassis with Semi Truck bodies on them, and 2000g of balast? Yeah.. it is.

WTCC that's a great looking build.
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Old 03-12-2019, 06:54 PM
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Originally Posted by Nerobro View Post
Is it wrong that I want to see these chassis with Semi Truck bodies on them, and 2000g of balast? Yeah.. it is.

WTCC that's a great looking build.
No, thats what we are doing now. I had to find my old F103GT first. This is the chassis that belongs under those trucks anyway, if they want to be realistic. The TT based ones remind me of when Tamiya released the F201 4wd F1 car, it just seemed wrong.

We are going to build one up for my youngest to run as a truck, and run it at the track during run what you brung days...

Here is my Old F103gt:





WTCC you may need Tamiya Ball Mount set PN 53273, if you do not have it yet. It helps the Dampner Discs do a better job, without it getting affected by the T-bar as stock. I ran it on Mine on Grey Carpet and found tuning much easier with different grade of silicone on the Dampner discs, also you can run the 3 or two discs, depending on how much side to side Dampening you may need.
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Last edited by 1/8 IC Fan; 03-12-2019 at 07:22 PM. Reason: grammar
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Old 03-28-2019, 05:07 AM
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Default Still running strong


3racing rolling motor mount with separate t-bar



F103GT with LC70 body

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Old 03-31-2019, 07:18 PM
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Making two of them, #7 and #8
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Old 03-31-2019, 07:28 PM
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Chassis setup is a litte bit of an experiment. Using lightweight ESCs with super-fast digital servo, Futaba $$ gyro and stock silver motor. Basically large "Scaletrix" cars.

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Old 03-31-2019, 07:30 PM
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This is the ESC. The fan is overkill, they don't even get hot.
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Old 04-02-2019, 12:10 PM
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What I learned with RC helicopters (which are controlled now on all axes by gyros) is that fast digital servos are very power hungry. So, I have been now running the servos straight from the battery with 21g wire and disconnecting the red wire from the ESC to the receiver. Depending on how little current a given ESC/BEC produces, this has really improved the steering on a lot of my cars. I'm doing this (supplying 8.4V) for 6V rated digital servos. I suspect some might have shorter life, but they certainly don't blow up in smoke from the extra voltage.

For those that have never used the gyro, it improves the racing, because the cars don't suddenly jump to the right or left going down the makeshift track when they hit a bump. The stay straight until you tell them to turn with the transmitter. Also, braking and acceleration can be much more aggressive (almost like a 4WD) because under heavy braking or acceleration, the car is less likely to spin out on the makeshift track. It drives as if it is running on high-grip indoor carpet.
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Last edited by ic-racer; 04-02-2019 at 12:22 PM.
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Old 04-02-2019, 12:32 PM
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Some of the gyros I have been testing. Initially the Futaba was way better than the other, but after supplying 8.4V to the servo and gyro, they all seem to work pretty well. The big one is a 3Axis+Rudder helicopter gyro being used on only for the rudder (steering) function.
The white material is like Velcro, but much better. The gyro 'locks' into the material in a solid manner with a click. Much different than velcro, the gyro doesn't flop around like Velcro allows. This allows me to swap gyro units around from car to car.

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Old 04-02-2019, 08:15 PM
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glad to see there is still interest in this car. If I ever get around to finishing mine, I'll have that new Toyota Gazoo body on it.

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