The sixth-generation ZL1 Camaro is one of Chevrolet’s most capable cars ever produced. The high-performance package was introduced in 2017, and when compared to Camaros from the past, the performance numbers are nothing short of staggering. From the factory, these cars are fast — performance numbers include a 0-60 time of 3.5-seconds, 11.4-second 1/4-mile time, and a staggering top speed of 198 miles per hour. To say this muscle car is loaded with technology would be an understatement. 

GM and Ford worked together on an all-new 10-speed automatic transmission and incorporated even more advancements with a magnetic ride control and an electronically controlled limited-slip differential, which found its way into the new ZL1. And we certainly can’t leave the LT4 engine out of this conversation — the supercharged 6.2-liter powerplant is the heart and soul of not only the ZL1 but the Z06, as well, cranking out 650 horsepower and 650 lb-ft of torque. 

While GM got many things right on this car, they managed to miss the boat on a few details. One area of concern with the sixth-gen ZL1 is the supercharger cooling system. With high-horsepower engines comes heat, and a supercharger will only compound the problem. And while the factory 1.7-liter Eaton blower is water-cooled, the system, specifically the lack of a coolant tank, leaves a lot to be desired. However, the aftermarket is always looking for ways to improve the OEM design, and when it comes to companies that can take on a task like this, Moroso is at the top of the list. 

The factory supercharger cooling system for the LT4 in the ZL1 consists of a heat exchanger, water pump, and several hoses, which is pretty standard equipment. However, let’s say you removed the blower to have it serviced or ported — upon reinstallation, you would find a big problem. GM uses a unique vacuum tool that is expensive to add coolant back to the supercharger cooling system. However, there are ways around that, as a quick search of YouTube will reveal. The problem is, these methods are problematic and are somewhat messy, plus, getting the air out of the system proves to be quite tricky. We’ve seen everything from people bypassing the relay to turn on the pump to draw in water to others using funnels and ratchet extensions to get coolant back into the system.

While we have no idea why GM decided not to include a supercharger coolant tank, we’re fortunate that Moroso saw a need. As a result, its new product (PN 63873) is an aluminum tank specifically designed for the 2017 and up ZL1 Camaro. This unit offers a means of improving this situation by adding coolant easier and making the system more efficient. It also adds almost an extra gallon of coolant capacity which will help with heat soak at the track, on the dyno, or in stop-and-go traffic. 

Camaro ZL1, 2017 and up Supercharger Tank features:

• Adds almost a gallon of fluid to the system
• Adding tank requires no special tool needed for bleeding or checking the fluid level in the system
• The tank bolts into factory mounting points and attaches to factory hose connections, making for an easy and clean installation
• Fabricated aluminum for strength in a high-heat environment
• Can be polished, chromed, powder-coated, or left as-is for a race look
• Can be packed with ice for the track or dyno pulls for quicker e.t.’s and more horsepower
• Includes a billet aluminum cap and two hoses with fittings

While Moroso’s ZL1 coolant tank makes it easy to fill and check the coolant level, it also has numerous other advantages. One of the most significant improvements is that the tank adds almost an extra gallon of coolant capacity. And more coolant means more efficient heat dissipation for the supercharger. Another bonus is that the tank bolts into factory mounting points while attaching to factory hose connections, which are included, making for a quick and clean installation. Another significant advantage over the factory cooling system is, with the coolant tank, if you’re at the track and want to take full advantage of the unit, it can be packed with ice for quicker times and more horsepower. 

With the product in hand, we installed this coolant tank in a ZL1 with the help of Redline Motorsports in Pompano Beach, Florida. As expected, Moroso has done its homework on this product, and the fit and finish are perfect, which is what we’ve come to expect from the company. The unit bolts in on the passenger side core support using two existing mounting holes. With the tank in place, we used the supplied hoses which connect to the factory units. We then removed the billet aluminum cap and filled the system with coolant.

The coolant tank is an item that is certainly needed on the 2017 and up Camaro ZL1 as it makes adding coolant easy, ups the cooling capacity, and allows for additional performance when ice is added. For more information on Moroso’s sixth-gen ZL1 coolant tank and other innovative products, visit Moroso.com.