We've had a great deal of interest regarding project Max Effort's new SLA style front from CorteX Racing, and one of the most common queries has been about the Radial X spindle. It's really quite a revolution in the industry and deserved more detail and photos than we had space for in the magazine.
It looks like a high-end race car part because that's where CorteX Racing's design developed from. Inspired by endurance racing series where parts are punished in extreme ways for hours on end, like the Rolex Grand-Am and American Le Mans, the Radial X Spindle endeavors to bring that level of sophistication to the masses.
Spindles just don't get enough credit when it comes to front suspension. It's so much more than just that thing the control arms bolt to; the design and strength can have a dramatic effect on how effective a suspension is; it's the central interaction point for the control arms and the steering. Plus, the geometry built into the spindle itself can make all the difference in how a car handles and how the rest of the suspension needs to be designed to correctly balance.
All of that was taken into account when CorteX Racing designed this spindle, but it's unique because rather than being a single forging locked into a specific geometry, it's modular and configurable. That of course means more initial design work, as well as extremely accurate machining, but it also results in a product that allows for precise engineering of each component. That really pays off in the end; here are some of the technical highlights per CorteX Racing.
* 2-inch drop as compared to SN-95 Mustang spindles
* Exceptional steering response and cornering ability
* Superior stiffness and strength compared to OEM spindles
* Compatible with wide wheels and tires (315, 335, etc.)
* Quick and accurate camber adjustment upper ball joint mount shim kit
* Brakes rotor sizes from 13-inch and up
* Radial design allows superior wheel bearing and rotor cooling when using brake ducting
* Adjustable king pin inclination angle by changing modular upper ball joint mount
* Adjustable Ackerman geometry using alternate modular steering arms
* Includes ARP 12-point hardware and hard anodized finish
* Hubs include high-strength stock length studs (ARP wheel studs available)
