CCS Oil Catch Can Kit for C8 Corvette ZR1 and ZR1X Coupe

Description

The First Catch Can Kit for the Corvette ZR1 and ZR1X

Developed specifically for the 2025+ C8 Corvette ZR1 and ZR1X, this Improved Racing oil catch can mounts to the driver side rear firewall for a clean, accessible location for easy maintenance and draining.

 

With a superior filtering efficiency of 85-90%, the CCS catch can captures oil vapor from crankcase fumes while adding minimal restriction to the system. This proactive filtration prevents harmful carbon deposits on intake valves, preserving engine health and performance over the long term.

 

An Improved Oil Catch Can

Improved Racing set out to design the best air-oil separating catch can we possibly could. We focused on three simple design goals:

 

1. Maximize efficiency: Separate as much vapor from crankcase blow-by fumes as possible with minimal restriction.
2. Easy to use: The catch can should be simple and enjoyable to use in every aspect including mounting, draining, and cleaning.
3. Durable: Virtually indestructible. Made from high-quality, reliable components. As with any Improved Racing product, nothing will vibrate loose or come apart under racing conditions.

 

The result is the CCS (Catch Can, Sport).

 

 

Highly Efficient Air-Oil Separation

 

The CCS is designed to maximize air-oil separation, achieving a peak efficiency of 85-90%. For comparison, none of the competitors’ catch cans we tested showed a peak efficiency of more than 60%. These results were achieved on our bench testing system at air flow rates of 0-4.0 CFM and vaporized oil injection rates of 0.20-0.30 grams of oil per minute.

 

Tangential Entry Port	Air enters the catch can manifold tangentially, causing it to spin. The centrifugal force of the spinning air forces heavier particles to the outside of the manifold, where they combine into larger droplets.
Stainless Steel Filter	Multiple layers of stainless steel mesh of varying porosities are sintered together to form a single filter. Effective filter rating is 100 microns.  Filter is made from 316 stainless steel and is washable.
Multiple O-Ring Seals	Three internal seals (shown in green) were used to ensure that no dirty air bypasses the filter. This is a major contributor to poor filtering efficiency and a very common problem we found in other catch cans. One primary O-ring seals the top and bottom half of the catch can (shown in red).
Anti-Splash-Back Funnel	The stamped aluminum funnel prevents fluid in the reservoir from splashing back onto the exit port (another common problem found in some catch cans). The funnel features spiral grooves which serve two purposes: They help combine oil droplets so they drain quickly into the reservoir. CFD simulations have shown they help spiral the air, contributing to cyclonic separation.
Bell Mouth Plenum	Extensive R&D went into designing the exit port plenum. The bell mouth shape sheds oil droplets collected on its outer perimeter, preventing fluid from exiting the catch can. The large bell mouth opening slows air velocity before exiting the catch can and reduces the probability of any fluid becoming entrained and exiting the can.
3.5 fl oz (104 ml) Reservoir	The 3.5 fl oz (104 ml) reservoir is more than sufficient for most engines and features an optional remote drain port.

 

No Sight Glass Needed

Improved Racing’s quick-release reservoir is so easy to remove that it eliminates the need for a sight glass. Just push up and twist 1/8th turn to remove the reservoir and look inside. No more fumbling or endless unscrewing to remove the reservoir.

 

No sight glass also means improved durability at higher operating temps. And no more trying to interpret a difficult-to-read sight glass to check your fluid level. Just look inside!

A powerful wave spring keeps the reservoir locked in place. A safety lock clip is also included just in case you want to be absolutely sure the reservoir cannot be removed.

 

Fast & Versatile Mounting Bracket System

We made the mounting bracket easy to use and remove because some engine bays are tight. Remove the can in seconds by unscrewing the green bracket nut. Installing and positioning is just as quick and easy. If you need a little more leverage, just use a 5/8″ or 16mm open end wrench on one of the nut’s lobes.

 

Positive Lock Safety Clip

The CCS comes with a safety lock clip. It’s peace of mind for crash protection or track events where a positive lock mechanism is required. Push to insert, pull to remove.

 

We also include a lanyard that tethers to any of the mounting bracket screws, so you will never lose your lock clip in your engine bay.

 

Modular Design & Optional Remote Draining

Improved Racing’s latest generation CCS oil catch cans feature a modular design with a removable bottom cap. The modular design allows for thinner walls, reducing overall mass and overall height while maintaining the same fluid capacity.

 

Don’t worry about leaks! The bottom cap is securely fastened with a retaining clip, so there is no risk of it coming unscrewed and leaking.

 

Tight engine bay? No problem: the bottom cap is easily removed and swapped for an optional cap with a drain port (sold separately) for remote draining.

 

We offer a remote drain kit which includes the replacement bottom cap with drain port, a stainless steel drain valve, hose, and fittings (part number CCS-DKB-06). You can also purchase the bottom cap on its own (part number CCS-26-KIT).

Color Options

The oil catch can is available in Improved Racing Green, Black, or Gunmetal Gray. Pick the color that fits your style.

 

 

Extensive Testing

Development of the CCS happened over several years and included ANSYS Fluent CFD simulations, extensive bench tests, and on-vehicle street and track tests. Final prototype testing also included a 9-month beta testing program in collaboration with various road racers, drag racers, and drifters.

 

 

Comparative testing included Improved Racing’s prototypes and several catch cans from leading competitors. We ensured our catch can will beat the competition in filtration performance while maintaining a similar or lower pressure drop. Bench testing focused on maximizing efficiency at peak blow-by air flow rates of 3.7-4.0 CFM, where most other catch cans lack efficiency. The chart below (click to enlarge) shows some of our bench test results. Proprietary information and competitors’ names have been redacted.

 

 

Applications

 

• 2025+ Chevrolet Corvette ZR1 and ZR1X Coupe (C8).

 

 

Dimensions

Specifications

 

Port Size	-6AN O-ring boss inlet and outlet ports.
Capacity	3.5 fl oz (104 ml) reservoir.
Construction	Reservoir, manifold, bracket nut, and plenum are CNC-machined from 6061-T6 aluminum and MilSpec Type II anodized. Filter is made from 316 stainless steel. Anti-splash-back funnel and mounting brackets are stamped from aluminum to minimize weight. Wave spring and hardware are made from stainless steel.
Filtration	100 micron, multi-layer 316 stainless steel mesh filter is suitable for all engines including vent-to-atmosphere setups. Washable.
Drain Port	No drain port by default. Optional drain port bottom cap is available and is sold separately.
Parts Included	CCS catch can with 3.5 fl oz reservoir. Vehicle-specific adapter bracket, mounting bracket, and hardware. Bracket nut. Lock clip. Pre-made inlet and outlet lines with emissions friendly SAE J30 R9 hose and factory style quick connect fittings.
Country of Manufacture	United States of America
Warranty	Lifetime warranty