CAMARO'S FIRST FOUR-WHEEL INDEPENDENT SUSPENSION DELIVERS WORLD-CLASS DRIVI
03/16/2009
Chevrolet
Fully independent front and rear suspensions are the underpinnings of the 2010 Camaro. The standard independent rear suspension is a first for Camaro and is designed to compete with the best in the world. It's a 4.5-link system that includes a unique, L-shaped upper control arm that attaches to the knuckle at one end and incorporates a ride bushing in the rear.
Based on GM's global rear-drive passenger car architecture, the Camaro sits on a 112.3-inch (2,852 mm) wheelbase, with an overall length of 190.4 inches (4,836 mm). The front track is a wide 63.7 inches (1,618 mm) for all models, while the rear track on LS and LT models is 64.1 inches (1,628 mm) and 63.7 inches (1,618 mm) on SS models.
Two suspension packages are offered: FE2 sport on V-6 models and FE3 performance with the V-8. The front suspension has a dual ball strut system, with a direct-acting stabilizer bar that measures 22.2 x 4 mm on FE2 and 23 x 4.2 mm on FE3. Hollow bars are used for mass savings. The front spring rates for FE2 models are 25 Nm, with wheel travel at 96 mm. FE3 models include a stiffer, 27 Nm spring rate, with wheel travel reduced at 84 mm.
Rear suspension features include high lateral stiffness for handling via three lateral ball joints per side. A sub-frame at the rear is double-isolated to minimize vehicle body motions and dampen road imperfections. The FE2 with a manual transmission includes a spring rate of 53 Nm, with wheel travel at 115 mm, and employs a limited-slip differential. The FE3 rear axle uses a limited slip differential on both manual- and automatic-equipped models; and the rear spring rate is increased to 66 Nm and wheel travel is reduced to 100 mm. Coil-over shock absorbers are used in the rear with a decoupled, hollow stabilizer bar. FE2 includes a 21.7 x 3 mm rear bar, while the FE3's large bar measures 23 x 3 mm.
The axle halfshafts on all V-8 models and manual transmission-equipped V-6 models are 30 mm in diameter on the left side and 40 mm on the right side. This design feature helps reduce the oscillation of torque from side to side and reduces axle hop.
Brakes
Front brakes for LS and LT models include single-piston calipers with 321 mm x 30 mm rotors. For long life, performance and consistent feel, organic, non-asbestos compounds are used with FE2 brakes. At the rear are vented rear discs measuring 315 mm x 30 mm, with a single-piston aluminum caliper.
The SS front brake package includes Brembo 355 mm x 32 mm vented rotors with four-piston aluminum calipers. Semi-metallic brake linings are used at all four corners on FE3 models for superior fade resistance and pedal feel. The rear brakes are vented Brembos measuring 365 mm x 28 mm, with aluminum four-piston calipers.
Steering
The 2010 Camaro's precise rack-and-pinion steering gives great driver feedback and cornering confidence. The design includes the rack mounted forward of the front axle centerline that enhances handling and provides a stiffer system, while maintaining a degree of lateral force that helps vehicle stability during turn-in. It also benefits noise and vibration characteristics. The steering ratio is 16.1:1 on all models, with 2.5 turns lock-to-lock. The turning circle diameter for all wheel-and-tire combinations is 37.7 feet (11.5 meters).
Chassis control systems
All Camaro models include a four-channel StabiliTrak electronic stability control system that incorporates anti-lock braking, traction control and an active braking system to control wheel slip, optimize traction and enhance stability in wet, snow-covered or icy roads.
All SS models have a competitive/sport mode that optimizes the electronic stability control system for competitive driving and track conditions. It provides a less governed level of stability control for expert driving on race tracks. The stability control system engages only in severe oversteer or extreme acceleration in this mode.
New for Camaro SS models with a manual transmission is Performance Launch Control that is enabled in the competitive mode. It is designed to control wheel slip to an optimal level, allowing hard accelerations at launch to achieve maximum grip and vehicle acceleration.
Hydraulic brake assist also is standard on all models. The system activates during emergency braking by detecting the speed and force the driver applies to the brakes. Under certain conditions, the hydraulic brake assist may activate the ABS more quickly and easily than vehicles without the feature.
Wheels and tires
Standard on LS models are P245/55R18 all season BFGoodrich touring tires mounted on 18 x 7.5-inch steel wheels. Optional wheels include 18 x 7.5-inch and 19 x 8-inch aluminum alloy wheels. On the optional 19-inch wheel, P245/50R19 Pirelli Pzero Nero M+S may be ordered.
For SS models, 20-inch wheels are standard, with tire sizes of 245/45R20 up front and 275/40R20 at the rear. SS models are equipped with Pirelli Pzero summer-only, Z-rated tires. Twenty-one-inch wheels and tires are available as accessories through Chevrolet dealerships.