EVO chassis planner

Absolute precision for chassis that run flat from the first centimetre

In the preparation of a slot car, few variables penalise as much as a twisted chassis. No matter how minimal the torsion, the result is always the same: lack of traction, uneven support, and off-track excursions at the most demanding points of the circuit. The NSR EVO Chassis Planner (ref. NSR4104EU) is designed precisely to eliminate that problem before it reaches the track.

Main features

• High-precision ground surface: acts as an absolutely flat reference to detect any deviation in the chassis structure.
• Four perfectly verifiable support points: allows for systematic checking and correction of the base, point by point.
• EVO version: optimised for the latest NSR chassis, with updated geometries and tolerances compared to previous versions.
• High-quality materials: manufactured to withstand intensive workshop use without losing its reference flatness.
• Safe "flattening" process: facilitates the application of controlled heat or magnets to return the chassis to its original shape without forcing or damaging the plastic.

Function and performance

The straightening process, known in the pits as "flattening" the chassis, requires a reliable reference. Any surface that is not perfectly flat introduces errors that nullify the preparation work itself. The ground base of the EVO Planner acts as that reference pattern: place the chassis on it, and immediately, the light or touch reveals if there is torsion and in which exact area.

With the chassis identified and properly supported, gentle heat or pressure is applied using magnets —depending on the material and the degree of deformation— until the piece regains its original geometry. The result is a car that runs completely flat on wood or plastic, with all four contact points working simultaneously.

Compatibility and applications

The NSR4104EU is specifically designed for the NSR chassis range, and its EVO version incorporates the necessary updates to adapt to the brand's latest models. If you prepare NSR kits in 1:32 scale and want to ensure that each chassis leaves the workshop in optimal condition, this tool is part of the standard process for serious assembly.

Ideal for…

• Club competitors and championships who need their car to run uncompromisingly from the first heat.
• Team preparers and mechanics who assemble multiple cars and need a reproducible and reliable method.
• Enthusiasts building NSR kits who want to ensure the geometric fidelity of the assembly.
• Any driver who has suffered an accident and suspects that the chassis has internal stresses.

Points to consider

The EVO Chassis Planner is optimised for NSR chassis. Before applying heat or pressure to any chassis, it is advisable to do so patiently and in short cycles, checking the result on the base between each intervention. Excessive heat can further deform the piece instead of correcting it.

Frequently asked questions

What exactly is a chassis planner for?

It is an absolutely flat reference surface that allows for the detection and correction of twists or deformations in a slot car chassis. A twisted chassis causes the car not to contact the track uniformly, resulting in loss of traction and irregular behaviour.

How is the NSR EVO Planner used?

The chassis is placed on the ground surface, and it is visually or tactically checked for any point that does not contact the base. Then, gentle heat or pressure with magnets is applied to the affected area, and verification is repeated until uniform contact is achieved at all four points.

Is it compatible with chassis from other brands?

It is designed and optimised for NSR chassis. Although the flat surface can serve as a visual reference for other chassis, the specific support references of the EVO version are intended for the geometry of the latest NSR models.

What is the difference between the EVO Planner and previous versions?

The EVO version is updated to adapt to the new generation NSR chassis, with tolerances and reference points adjusted to the brand's more modern geometries.

Is it only for competition or can it also be used for kit assembly?

It serves both purposes. Whether you are assembling an NSR kit and want to ensure that the chassis leaves the workshop perfectly flat, or if you are preparing a competition car and need to verify its condition before each race.

The NSR4104EU EVO Chassis Planner is a precision-ground chassis straightening tool designed for 1:32 slot car racing. It provides a perfectly flat reference surface to detect and correct chassis twist or warping, ensuring all four contact points are properly aligned for maximum traction and consistent lap times. Essential for serious slot car builders and club competitors working with NSR chassis.