NOTE: Not compatible with applications utilizing an EGR valve. If your truck has an EGR valve present at the front of the passenger side cylinder head, the EGR will have to be eliminated in order to run the Improved Racing catch can.
Why Install a Catch Can?
GM's LS family small block engines often expel large amounts of oil and oil mist into the intake manifold. Most intake manifolds we have dismantled are coated in excess engine oil. This results in excessive carbon build-up on the intake valves and reduces the octane of the air/fuel mixture, affecting horsepower.
While carbon build up will not ruin your engine, it will result in reduced performance in the long run, 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 and running smoothly.
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.
NOTE: Some 2007 and later applications use a quick connect style fitting at the valve cover. This can be removed and the catch can line can be clamped directly to the valve cover barb. If your truck is a 2010-2013 model, a portion of the OEM PCV tube may need to be retained in order to connect the outlet hose of the catch can to the PCV fitting on the top of the intake manifold.
