S13 / 240sx - Steering Kits / Parts

Description

There are 2 options:

lock kit with steering rack relocation hardware. Requires OEM front subframe cutting and welding. It moves rack 46mm forward for better Ackemann curve and a bit lower for oil pan clearance. It works all big drift series rules that require OEM subframe usage, but allow modifications for rack relocation.
lock kit with 30mm rack offset spacers. This is an option if front subframe cutting and welding is not possible

More usable steering lock, feel and precise handling especially with rack relocation.

Less sensitive steering. Increased steering ratio for smoother handling.

More suspension travel – less interference risk at full droop. Longstroke coilover kits can be used.

Lighter and stronger. Optimized design in combination with high strength steel is used.

60mm drop for roll center correction.

Adjustable camber and caster with adjustable doubleplates.

Adjustable lock stopper.

Adjustable Ackermann washers included in the kit.

Other components, packaging and clearance.
This kit assumes coilovers to have enough clearance.
Dependent on rim width and ET, wider fenders or fender flares would be needed.
With tire diameter up to 635mm (215/45R17, 225/45R17, 235/40R17, 225/40R18 etc) and lowered ride height the inner wheel wells need to be slightly modified.
Recommended backspacing is 135-140mm (7“ ET45; 8“ ET35; 9“ ET25). If ET is smaller, then wheels stay more outwards, if ET is bigger, then spacers need to be used.

This product is for racing use only!

Description

Revised kinematics, not just dropped knuckle.

Dropped knuckles are good to maintain factory kinematics on lowered car, but still factory kinematics is more designed for everyday streetcar. If maximum grip is the keyword and combination of good roll center position, camber gain, antisquat and bumpsteer are required, then dropped knuckle is not good enough. That is the reason why we totally revised the kinematics.

More than 10kg of weight reduction over original components and still maintaining required strength and stiffness

All the metal components on Wisefab S-Chassis knuckle are from high strength steel, including sheet metal components, tubes, tube ends and rod end housings. Good materials with design optimization has lead into major weight reduction. The knuckle weighs ~2,7kg and at the same time can hold 5-6G of loadpeak at tire contact patch on 1100kg car. Also for weight reduction purposes most of the suspension links are designed straight and tubular. All the joints are rod ends or spherical bearings, no rubber bushings.

Other components

Hub to hub length (track) is the same as original, as this is defined by halfshaft lengths. This kit assumes coilovers to adjust ride height.

Minimum rim size is 17“

This product is for racing use only!