A traditional shock absorber uses something called deflective disc valving to help control the wheel movement of a vehicle. As the fluid inside the shock absorber experiences compression or rebound as a result of the road surface, discs inside the tube are bent by the force of the liquid.
How do DSSV dampers 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 …
What shocks does the Colorado ZR2 have?
ZR2 Front Long Travel DSSV Shocks The Chevrolet Performance ZR2 Front Long Travel Dynamic Suspension Spool Valve (DSSV) Shocks are designed and tuned specifically for off-road racing by Chevrolet Performance and Multimatic. They provide up to a 15% increase in overall suspension travel on 2017+ Colorado ZR2 models.
What are DSSV shocks?
Multimatic first designed the Dynamic Suspensions Spool Valve (DSSV) damper technology for racing applications in the early 2000s. The idea was simple: replace the traditional piston and shims with a pair of spool valves.What are spool valve dampers?
Spool valves (001) dynamically vary damping force by controlling fluid flow through precisely shaped ports using a spring-loaded shuttle. Each DSSV damper contains two spool valves, one for compression and one for rebound. Windows: There are six ports, or windows (002), on each street-car valve.
What is a ZR2 bison?
The Colorado ZR2 Bison was a collaboration between AEV and Chevrolet to offer enthusiast customers an upgraded version of the already capable ZR2 Colorado, designed specifically for more technical terrain and overland travel.
Are DSSV shocks adjustable?
DSSV damping is highly predictable and easily tuneable, or at least easier than other damper technology like deflected discs. Once the setup has been tuned, the damper is not adjustable like magnetorheological or electronic systems.
What does ZR2 mean on a Chevy Colorado?
Regular Production Option ZR2 is a special off-road/suspension package offered by General Motors on their mid-size pickup trucks and SUVs. … The ZR2 package was gradually phased out with the S-Series pickup and SUV lines. However, it has made a comeback as an option on the 2017 Chevrolet Colorado.What does the ZR2 package include?
For the Silverado, the ZR2 package translates to a 6.2-liter-powered Silverado that sits on a set of 33-inch off-road tires. This off-road-ready package also includes Multimatic 40mm DSSV spool-valve dampers and e-lockers front and rear.
Is Colorado ZR2 a good off-road?It’s not technical by any standard, but it proved a great test track for putting our Colorado ZR2 V6 through its paces. In a word, the ZR2 is confident off-pavement. In two words, it’s confident and fun. It’s surefooted crawling through fresh mud, over downed branches, and across bridges drowning in rainwater run-off.
Article first time published onWhat is the difference between Z71 and ZR2?
You can expect 17-in. Dark Argent metallic cast aluminum wheels on the Z71, while the ZR2 offers 17-in. … A black rear bumper is included with the ZR2 and a body color rear bumper with the Z71. Spray-on bedliner is standard on the ZR2 and available with the Z71.
What is a spool valve?
A spool is a cylindrical valve element that opens and closes ports when moved axially within the valve bore. Most spool valves use elastomers to seal between flow paths.
Where is peak suspension located?
Peak Suspension is in Riverside, California.
Is there a Colorado trail boss?
Trail Boss orders are no longer being taken for 2022 Chevy Colorado LT and Z71 models with four-wheel drive. A Chevy official we spoke with said that it’s possible things may change later in the model year, but for now it’s sold out.
Is the 2.8 Duramax a good engine?
The 2.8 Duramax engine is great in its league. Even if it can’t pull loads like the heavy-duty, big guys, 7,000 lbs are more than enough for your race car, small/medium boat, or travel trailer. Despite the identifiable problems, it is not called “Duramax” for nothing.
How much can the ZR2 bison tow?
The 2020 Chevy Colorado ZR2 Bison is equipped with a standard 3.6-liter V6 engine, providing up to 308 horsepower and 275 lb-ft of torque. How powerful is this 6-cylinder engine? The ZR2 Bison is rated to be able to tow up to 7,000 pounds.
How much lift does a ZR2 have?
The ZR2 treatment is already offered on the Colorado mid-size pickup, and in that application it adds a 2.0-inch lift, a 3.5-inch wider track, front and rear locking differentials, and Multimatic’s spool-valve dampers.
Does ZR2 have locking diff?
ELocker Differentials The ZR2 is equipped with an Eaton ELocker differential on the front and rear axles. The ELocker is an electronically-controlled, selectable On-Off locking differential that provides 100 percent axle lock on demand.
What does ZR5 mean?
In 2002, Chevrolet attached its “ZR” package to the four-wheel drive S-10 Crew Cab and dubbed it the ZR5. The ZR5 package made no mechanical or structural changes to the S-10 Crew Cab, it simply added ZR5 decals, aluminum wheels, body moldings, side steps and a roof rack.
Does ZR2 come with skid plates?
Instead, AEV focused on protecting the truck’s body and powertrain. Beefy stamped-steel front and rear bumpers and five hot-stamped boron-steel skid plates are at the heart of the Bison package. … The Colorado ZR2 is GM’s only truck with locking front and rear differentials.
Does the ZR2 have crawl control?
The truck also includes an electronic locking rear differential and a crawl control system intended to help reduce stress when stuck in soft sand or climbing up or down a steep grade.
What does Z71 mean on a Chevy Colorado?
The z71 is a code name that Chevy uses to identify the different packages when they make their vehicles. The z71 is designed to be a midsize truck that has an off-road suspension package.
How fast is the Chevy Colorado ZR2?
The 2021 Chevy Colorado ZR 2 will come equipped with a 3.6L V6 engine that is able to churn out 181 hp. This vehicle will have a top speed of 135 miles per hour. This is considerably faster than the base model which only has a top speed of 115 mph.
Where is the Colorado ZR2 built?
The Bison package is exclusively available on the Chevrolet Colorado ZR2 and is built at General Motors’ Wentzville Assembly Center in Missouri of globally sourced parts.
Is 2021 Colorado a good truck?
Highs Handles better than most trucks, comfortable driving position, hugely capable ZR2 model. Verdict The Colorado is a fine pickup truck, but its low-quality interior and absent technology hold it back. …
How much can a ZR2 diesel tow?
ZR2 has a 5,000 lb. max capability.
Is the ZR2 wider?
Wider track The Colorado ZR2 features a 3.5-inch wider track than the rest of the lineup.
What does the LT mean in a Chevy?
The LT stands for “luxury touring” and signifies models that are above the LS entry-level trims.
How are spool valves controlled?
Essentially a spool valve is a cylinder inside a sealed outer case. … Whatever the method is chosen to control the valve, all that we are doing is simply pushing the spool to move within the housing, and by doing this we are allowing or blocking the path between the ports.
How does a spool work?
A full spool replaces the carrier, spider, and sides gears. … The spool’s ring flange bolts onto the ring gear. So, the ring and pinion do their job, redirecting torque 90 degrees from the driveshaft to the wheels but the housing has lost its ability to differentiate wheel speeds between the wheels.
How do you adjust a spool valve?
To adjust the spool valve, loosen the valve-locking nut on the side. Removing the locking nut gives you access to the adjustment screw. Turn the screw clockwise to raise the pressure, and twist it counter-clockwise to lower the pressure.
