After several big crashes with a speed run tt-02 touring car project, I decided to have a go at it with a buggy chassis. Hopefully, the wider frame will provide a more stable base to build on. Here is my modified TT-02b Neo Scorcher.

DF-02 Metal Diff Gear Set

The differentials in this car have been converted to metal. The plastic gears were ok in the touring car on 3s, but in a buggy, they started stripping under hard acceleration. Fortunately, there is a solution.

DF-02 Metal Diff Gear Set - this will not be a straight fit in a TT-02/TT-02b.

The pinion gears in each differential need to be ground down to match the original plastic ones (approx 1.5mm needs to be ground down).

They need to match perfectly to fit and run smoothly.

TT-01 G Parts

The new metal diffs have a 3-pin configuration rather than the 4-pin you get in a TT-02.

This means that the TT-02 diff cases cannot be bolted on the metal diff gears, and the diff internal gears will not fit in them either. You need to use the TT-01 diff cases from this pack

Now for the electronics and wheels/tyres.

I wanted to use something that will run 3s and is sensored for nice smooth power delivery.

So the tyres also had to be up to scratch.

Wheels/tyres (x2 packs) - these are belted and will take a lot of speed. It is essential to get good tyres on a fast car. You can have all the power in the world but what matters is how much you can apply to the road.

Extra Parts

Motor - this sensored 8.5t will take 3s power.

ESC - sensored 160 amp with an 800 amp burst rating (will handle very fast motors) and also has options to turn up the timing and boost.

Battery - 3s shorty pack that is small and very high C rating. Higher C ratings mean that the battery will not be stressed by high-power motors.

Servo - low profile to save space and only being used on the road so does not need a huge amount of torque.

Radio set - trusty radio link that has multi-model memory and great range for doing speed runs.

The only things I purchased from elsewhere were the driveshafts (yeah racing CVD shafts front and rear, and the 12mm to 14mm hex converters for the wheels (eBay 3d printed).

Now time to get rubber on the tarmac and see what it can do!

Final Spec List

TT-02b Neo Scorcher.

Hardened Tub Chassis.

Bearing Kit.

Fastrax Shocks - Same length (75mm) used front and rear to drop the ride height of the car. This car will only be used on the tarmac. 

Front Shock Tower - These are from the touring car chassis.

Rear Shock Tower - Also from touring car chassis.

Fastrax steering Set.

Fastrax Aluminium Rear Hubs.

Fastrax Aluminium Front Hubs.

Fastrax Aluminium Steering Knuckles.

Uprated Suspension Holders. (x2 Sets)

Carbon Effect Rear Wing.

FTX Wing Holders.

FTX Wing Brackets.

Fastrax Aluminium Wheel Hex Set.

TT-02b Turnbuckle Set.

TT-02 Battery Bar.

Fastrax Prop Shaft.

Fastrax Motor Mount. 

 Speed Gear Set.