Engineers call it “flying car” logic. On the 2014 Chevrolet Camaro Z/28, the Performance Traction Management (PTM) system maintains the car’s full power even if the tires lose contact with the ground. Without this logic, the PTM would interpret the car in the air as a loss of traction and reduce torque to restore it. This would likely slow the car and hurt lap times.
“PTM uses torque, lateral acceleration and rear-axle wheel slip to define the amount of traction control required, but when the car clears a rise on the track, it normally wants to decrease torque to increase traction. The unique logic in the system uses the ride-height sensors to determine the reduction in force on the tires that’s unique to track driving and allows the car to continue with uninterrupted momentum and, ultimately, a better lap time.” said Bill Wise, Camaro Z/28 vehicle performance engineer.
The Z/28 uses competition-derived spool-valve dampers, specific suspension bushings, coil springs and stabilizer bars, along with a unique zero-preload limited-slip differential to send power to the 19-inch wheels wrapped with Pirelli R compound tires.
The new Z/28 is the fastest Camaro ever on a track, with improved specs in the power, traction, braking and curb weight areas. Power comes from the 7.0L LS7 engine, rated at an SAE-certified 505hp and 481 lb-ft of torque. A close-ratio six-speed manual transmission is the only transmission offered and power is distributed to the rear wheels via a limited-slip differential featuring a helical gear set, rather than traditional clutch packs, for optimal traction.
The Z/28 is capable of 1.08 g in cornering acceleration thanks to chassis revisions, 1.5 g in deceleration thanks to the Brembo carbon ceramic brakes, and is 55 pounds lighter than the Camaro SS 1LE thanks to things like lightweight wheels to thinner rear-window glass.
“The new Camaro Z/28 was bred on and for the track,” said Wise. “From the hardware bolted to the chassis to the software such as the “flying car” logic, every element built into it was designed to help deliver faster lap times, with consistency, control and dependability.”
We will have a drive report right here at Super Chevy soon and for more information on the Z/28 or any other Chevrolet model can be found at www.chevrolet.com.