Motor king38K

Power and torque in long can format: this is the NSR King38K

The NSR King38K (ref. NSR3028) is a long-can motor developed by NSR to meet the demands of slot enthusiasts seeking a balanced combination of top speed and torque. Its 38,000 RPM and 365 g-cm of torque, achieved through MAGNETIC Effect technology, make it a solid option for both competition setups and improving the response of track cars.

Main features

• RPM: 38,000
• Torque: 365 g-cm
• Technology: MAGNETIC Effect
• Format: long can
• Brand: NSR
• Reference: NSR3028

MAGNETIC Effect technology

The NSR MAGNETIC Effect series applies a special treatment to the motor's magnet to increase magnetic flow without increasing the size or weight of the assembly. The result is a motor that delivers more torque at low and mid-range RPMs, translating into a more defined corner exit and a more linear response to the trigger. For competitive slot racing, this makes a tangible difference in lap times.

Recommended applications

The King38K is designed for long can setups, the standard format in many competition and advanced preparation chassis. It is particularly interesting for:

• Club competitors looking for a motor with development margin and good lifespan.
• Enthusiasts wanting to elevate their car's performance without losing drivability.
• Preparers working with chassis compatible with NSR long can motors.

Behaviour and performance

With 38,000 RPM, the King38K sits in the high range of the NSR lineup, offering top speed without sacrificing torque. The 365 g-cm ensures a strong acceleration that is particularly noticeable on tracks with fast corners and intermediate straights. The MAGNETIC Effect technology contributes to making the motor more predictable and easier to manage, something club drivers particularly value during long sessions.

Usage recommendations

As with any high-performance motor, it is advisable to respect a brief break-in period before demanding maximum performance. Periodically check the braid and the condition of the pinion to ensure optimal contact and prolong the motor's lifespan. NSR offers a wide catalogue of compatible spare parts and accessories that facilitate maintenance and preparation.

Frequently asked questions

How does the King38K differ from other NSR long can motors?

The King38K incorporates MAGNETIC Effect technology, which enhances the magnetic flow of the magnet and raises the torque to 365 g-cm. This distinguishes it from standard specification long can motors, offering a more energetic and consistent response.

Is it suitable for club racing?

Yes. Its 38,000 RPM and generated torque make it competitive in club categories where long can motors are allowed. Check your championship regulations before homologating it.

What pinions and crowns is it compatible with?

The King38K accepts standard pinions for NSR long can motors. The choice of pinion and crown will depend on the type of track and the gear ratio you wish to achieve. NSR offers a wide variety of options in its spare parts catalogue.

How much break-in time does it need before using it at full performance?

A progressive break-in of between 30 and 60 minutes at half power is recommended to settle the braids and collector. This extends the motor's lifespan and improves its final performance.

Can I combine it with chassis from other brands?

As long as the chassis accommodates the long can format and the mounting dimensions are compatible, yes. Check the motor housing dimensions in your chassis before proceeding with the installation.

The NSR King38K (NSR3028) is a long-can slot car motor delivering 38,000 RPM and 365 g-cm of torque through NSR's MAGNETIC Effect technology. Designed for club racing and advanced builds, it offers a powerful yet predictable performance profile. Compatible with standard long-can motor mounts, it is a top choice for slot car enthusiasts looking to upgrade their drivetrain with a reliable, high-performance NSR motor.