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New Pillar Vane Hybrid Rotors for Street Stock Racers

Afco's newest Pillar Vane Rotor is a hybrid design that will give Street Stock racers the strength of a Ford hub with the light weight of a GM metric rotor.

Afco’s newest Pillar Vane Rotor is a hybrid design that will give Street Stock racers the strength of a Ford hub with the light weight of a GM metric rotor.

Just because the rule book requires “stock type” or “stock replacement” components on your race car, that doesn’t mean you have to be stuck with underwhelming stock performance and parts that break too often.

Afco’s new Pillar Vane Hybrid rotors combine several advancements to create a very racy brake rotor that, because it will still work in stock applications, is still legal where the rulebook requires “stock replacement parts.” The pillar vane technology is a very cool innovation that we’re seeing Dirt Late Model racers adopt in their own high-end Afco rotors. It essentially replaces the traditional straight-vanes for smaller “pillars” spaced evenly throughout the rotor. Afco’s engineers say the pillar vane design provides greater stability for the outer surfaces of the rotors while also cutting rotating weight versus traditional straight vanes. The straight vane design also leave long unsupported voides between each of the vanes–fine for street cars but more likely to warp from the extra heat generated by racing.

Afco Brake Rotor 02

This all-new rotor is a highly engineered casting designed specifically to provide a high-strength rotor capable of withstanding the rigors of racing without any extra weight.

The pillar vane design has been raced and proven for a year or two, and now Afco has added to it with their Hybrid design for the rotors. The “hybrid” designation means Afco has taken the best of two different designs to make a better racing rotor. The hub utilizes the stronger ’75-’81 Ford engineering while the rotor itself is the lighter GM Metric design. Afco also uses their own high-quality castings to make the rotors–these aren’t OEM rotors modified to try to make them work for racing.

Afco’s Eric Saffell told us this new Pillar Vane Hybrid Rotor is actually 1.5 pounds lighter than Afco’s already lighter-than-stock current generation Standard Hybrid design. The rotors are sold fully balanced so they won’t throw off the chassis setup you’ve worked so hard to dial in. And to save racers money, they still use standard brackets and bearings, so you can still use the components you already own. These new rotors will be available either with a plain face or slotted to help remove heat and gas buildup.

For more information, you can check out Afco’s website here.


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