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SPECIFICATIONS:

Scale
1/10

Brand
Tamiya

Model
BMW Roadster

Type
Electric

Motor
Mabuchi 540

Speed
30 kph

PRO:              

Fast out of the box

Long running times

Scale looks

Fun to play with

CON:

Twitchy handling

TUNING TIPS:

Replace rear tires with Tamiya Type B slicks

Install ball bearings

Replace rear friction shocks with oil shock absorbers

Install Tamiya yellow springs in the rear

This is the Tamiya BMW Roadster. It is an electric car with a rear wheel drive configuration. Powered by a Mabuchi 540 stock motor, this model was surprisingly quick out of the box.  Unfortunately the handling was very twitchy, the rear end was too loose.

The first upgrade was the installation of ball bearings to replace the plastic bushings. Ball bearings makes the car faster and more durable.

The second upgrade was to replace the rear tires with Tamiya's Type B slicks. This dramatically made the car very easy to handle, even with the speed of modified motors.

The final upgrade was to replace the rear friction shock absorbers with Tamiya's oil filled shock absorbers to prevent the rear end from bouncing around.

To see how fast this car can go, in went an HPI 12 turn modified motor controlled by a Tekin P12 electronic speed controller. The car was now very, very quick, estimated top speed of around 60 kph.

SOLD

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