CCS Oil Catch Can Kit for 2020+ C8 Corvette w/ Targa Top
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A Must Have for the C8 Corvette
We'll be completely honest: We did not think the C8 Corvette needed a catch can. Surely the a modern engine like the LT2 was designed the to keep oil vapors out of the intake manifold, right?
During development and testing of the CCS oil catch can, we decided to put one on our C8 shop car, not expecting it to trap much fluid. To our complete surpirise, the catch can was trapping over 1 fl oz (29.6 ml) of oil over 3,000 miles of casual street driving. In racing conditions, the combination of high RPM's and G-forces can result in the same amount of oil being trapped over a single track session.
Why Does the C8 Corvette Need a Catch Can?
The LT2 engine is direct injected, meaning fuel is injected direclty into the combustion chamber, instead of the intake runners. While great for fuel economy, this means the intake port walls and valves will no longer be cleaned by the fuel. This results in excessive carbon build-up on the intake valves; a well documented problem with direct injected engines.
While carbon build up will not ruin your engine, it will result in reduced performance in the long run. Vaporized oil in the intake manifold severely exarcebates the problem, so it's important to keep the air as clean as possible. Adding a good catch can to the crankcase ventilation system will help reduce this carbon build up and keep your engine cleaner.
An Improved Oil Catch Can
Improved Racing set out to design the best air-oil separating catch can we possibly could. We focused on a three simple design goals:
- Maximize efficiency: Separate as much vapor from crankcase blow-by fumes as possible with minimal restriction.
- Easy to use: The catch can should be simple and enjoyable to use in every aspect including mounting, draining, and cleaning.
- 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's design maximizes air-oil separation efficiency, resulting in a peak separation efficiency of 85-90%. For comparison, none of the competitor's 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
|Stainless Steel Filter
|Multiple O-Ring Seals
|Bell Mouth Plenum
|7.0 fl oz (207 ml) Reservoir
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 an 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 & Flexible Mounting Bracket System
We made the mounting bracket easy to use and remove because some engines bays are tight. Remove the can in seconds by unscewing the green 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.
Universal Mounting Bracket Options
Two universal mounting brackets are available: 90-degree or flat. The 90-degree bracket is included with the can and the flat bracket is available separately. Vehicle-specific kits and mounting solutions are being developed for many popular vehicle applications.
Positive Safety Lock 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.
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 competitor's names have been redacted.
- Fits 2020+ Chevrolet Corvette (C8) variants with the targa Top.
- Does not fit C8 models with retractable hard top convertible. The convertible hard top has the coolant reservoir relocated to the same location as the catch can.
|Country of Manufacture
Type II Anodized
|Minimum Operating Temperature
|Maximum Operating Temperature
7.0 fl oz (207 ml)
|Inlet Port Size
-6AN O-Ring Boss Female
|Outlet Port Size
-6AN O-Ring Boss Female
|Standards & Certifications
Milspec Type II Anodizing
O-Ring Boss Threads per SAE J1926-3 & ASME B1.1
O-Ring Boss Threads per SAE AS5202