What is DSSV suspension?

Dynamic Suspensions Spool Valve (DSSV) is a chassis suspension technology that delivers high levels of suspension damping performance. It is used on various ultra high-performance GM vehicles, including the Chevrolet Camaro Z/28, Camaro ZL1 1LE, and Colorado ZR2.

What is multimatic DSSV?

The Multimatic DSSV Multimatic is a privately held corporation based out of Ontario, Canada. The company provides many different parts to several of the OEs, including control arms for GM pickups, the tailgate step for Ford, and the tailgate damper assembly for Nissan and Toyota.

What are multimatic DSSV dampers?

“DSSV dampers regulate oil flow via precisely shaped ports,” Multimatic explains. “These ports, combined with the configuration of other elements within the valve, enable detailed shaping and optimization of the damper’s force-velocity curve.”

How do DSSV dampers work?

Multimatic’s DSSV dampers retain basic components such as a sealed tube filled with hydraulic oil and a piston that moves within that tube in sync with suspension motion. The coil springs inside this pair of spool valves resist motion of the inner portion, helping control the magnitude of damping force produced.

How does a DSSV suspension damper work?

DSSV dampers replaces the shims of a conventional damper with a spool valve – which is a spring-loaded cylindrical sleeve – resulting in better consistency damper to damper, more precise control of the force-velocity curve, and repeatability from impact to impact, negating the possibility of the orifice changing with time and use.

How does Multimatic DSSV make the suspension firmer?

The DSSV is also able to be further finessed by changing the shape of the opening that the oil passes through inside the valve; Multimatic calls this the keyhole. By tuning the keyhole, engineers can make the damper firmer or softer for different levels of input force on the suspension.

What kind of suspension does a Z / 28 DSSV have?

The Z/28’s front DSSV configuration features a spool-in-piston super-strut, an inverted monotube strut with a 40mm piston and a 45mm OD insert tube that assures high bending stiffness, resulting in improved steering feel, vehicle response and maximum cornering capability. The Z/28’s rear DSSV configuration features a spool-in piston damper.

Is the Colorado ZR2 equipped with DSSV suspension?

The second-generation Chevrolet Colorado ZR2 is equipped with DSSV dampers in the front and the rear. The Colorado ZR2 represents the first application of DSSV dampers in an off-road vehicle, where it offers increased precision and manufacturing repeatability along with enhanced ride and handling performance, both on- and off-road.