Under such conditions specialty steels are used, often cross drilled to reduce rotational weight. Wilwood also manufactures dynamic mount rotors for Super Speedway applications as well as special limited duty street rod and pro series solid rotors. For all rotor designs, Wilwood conducts extensive in-house dynamometer testing to measure results of rotors under the most demanding conditions, This unique testing, teamed with extensive research and development and track testing assure the racer of the best quality high performance rotors available. Designed for braking applications that do not demand continuous thermal cycling or great cooling requirements, these rotors are used in Dirt Track, Lightweight Formula and Open Wheel Racing, as well as drag racing and super speedway applications because they will not fail under sudden thermal shock conditions. The lightweight designs greatly reduce rotating, unsprung weight which is further minimized with cross drilling.
All rotors are blanchard ground for flatness and then plated with a protective coating.
Wilwood's super speedway rotors are available with our dynamic mounting system for increased performance. Midget and TQ rotors are machined with convenient caliper mount access holes. Vented Rotors Wilwood Engineering's Ultralite vented straight vane rotors are cast from premium iron alloy to provide maximum stability over a wide temperature range. Excellent rotor wear, superior heat dissipation qualities, resistance to checking and cracking and a wide range of dimensions and mounting patterns provide unequaled user versatility. Standard applications include Late Model, Open Wheel, Modified, Hot Rod, Oft Road, Pro Series, Rally and Road Race.