Chassis P-963 GTP / Hypercar Grey - Soft

The Scaleauto SC-6673B chassis takes the preparation of the Porsche 963 LMDH to another level

When Scaleauto launched its interpretation of the Porsche 963 LMDH GTP/Hypercar, it also developed a range of replacement chassis aimed at those who want to go beyond the standard assembly. The SC-6673B is the variant in soft grey: the colour identifies the hardness of the plastic, and that choice directly influences the car's behaviour on track.

Technical features

• Material: injected plastic of minimum thickness (0.65 mm), which reduces weight without sacrificing structural rigidity.
• Colour / hardness: grey = soft. The soft version offers greater flexibility in corners, enhancing grip on tracks with irregularities or with a rail that presents some movement.
• Motor mount: prepared for RT4 motor, Scaleauto's reference block for this platform.
• Front axle: height adjustable via M2.5 allen screws, allowing for the regulation of front ride height without the need to replace parts.
• Suspension points: 6 optional positions for the motor pod, providing real adjustment margin in suspension geometry.
• Body mounting: front and rear adjustment via M2.5 screws.

Function and performance

A chassis of 0.65 mm thickness is not just a replacement part: it is the foundation on which to build a custom setup. The soft hardness of the SC-6673B allows the plastic to better absorb track imperfections, reducing the tendency to lose alignment in fast corners where a stiffer chassis may lose contact with the guide. It is a common choice among tuners seeking greater stability on winding tracks or in competitions where the rail shows some wear.

The height adjustment of the front axle allows for compensation of differences between bodies, ensuring that the weight distribution is correct from the outset. The six optional suspension points for the motor pod expand the tuning range without the need for irreversible modifications.

Compatibility and assembly

This chassis is specifically designed for the Porsche 963 LMDH GTP/Hypercar platform from Scaleauto. The motor mount is compatible with the RT4. The body is secured with M2.5 screws, both at the front and rear.

For the assembly of the front axle, an M2.5 allen key is required. We recommend placing the chassis on a flat surface before adjusting the height and checking the level with the body already installed.

Assembly and preparation: common mistakes

• Not checking the height of the front axle with the body mounted. The adjustment in isolation may not reflect the actual stance of the car. Always check with the body mounted and the car on the track.
• Confusing hardness by colour. In the Scaleauto range, the colour of the chassis indicates hardness. Grey = soft. It is not just an aesthetic variant.
• Over-tightening the M2.5 body mounting screws. The 0.65 mm plastic is thin; excessive tightening can deform it. Firm adjustment, not forced.

Ideal for…

Tuners and enthusiasts competing in clubs with the Scaleauto Porsche 963 LMDH who are looking for a replacement chassis or want to explore the difference in behaviour between soft and rigid hardness. Also for those who simply need to replace a damaged chassis while maintaining the original soft configuration.

Frequently asked questions

What is the difference between the soft and rigid Scaleauto chassis for this model?

The hardness of the plastic affects the flexibility of the chassis in corners. The soft (grey) better absorbs track irregularities and enhances grip on tracks with fast corners or slightly worn rail. The rigid offers more precision on very smooth and well-maintained tracks. The choice depends on the type of track and driving style.

Is this chassis compatible with other Scaleauto models or only with the Porsche 963?

It is specifically designed for the Porsche 963 LMDH GTP/Hypercar platform from Scaleauto. Its compatibility with other platforms from the brand is not confirmed without prior verification.

What motor can I install in this chassis?

The mount is prepared for the Scaleauto RT4 motor, which is the reference block for this platform according to the manufacturer's information.

Does it include screws, axle or other parts besides the chassis?

The available information describes the chassis as an individual part. The necessary M2.5 screws for assembly are not specified as included; if you have doubts, please consult us before placing your order.

What type of track is this chassis suitable for?

As a Scaleauto chassis, the car mounted on it is designed for Sport track (compatible with Scaleauto and Slot.it). It can also run on other systems like Scalextric or Ninco by adapting the guide, but the original platform is Sport track.

The Scaleauto SC-6673B is a soft grey injection-moulded chassis (0.65 mm thickness) designed for the Porsche 963 LMDH GTP Hypercar slot car platform. Featuring adjustable front axle height with M2.5 allen screws, six optional suspension points for the motor pod, and RT4 motor support, it offers serious tuning options for club-level competition. A key component for slot car enthusiasts looking to fine-tune their Porsche 963 build on Sport-system tracks.