Remaining vapors and moisture travel through the can’s multiple layers of internal baffling, collecting in the can while leaving cleaner gasses to escape the system. The plate prevents coarse oil from easily spilling into the can. Crankcase gasses build up within the engine and must be evacuated. Next, the APR catch can sits between the plate and the turbo inlet.
All oil galleys, including the coarse oil separation galley remain, promoting proper evacuation of crank-case gasses, and proper drain-back of oil into the engine, rather than the catch can. Internally to the plate, baffles keep oil from spilling out of the system. The active charcoal filter port remains, but a newly installed check-valve acts as another line of defense before the N80 valve. The top plate is diaphragm-free, effectively eliminating the boost activated fail-points on the factory design. A new race-inspired oil separation and drain-back system, or top-plate, is installed. Often times when any warning of starvation has occurred, it’s already too late.įirstly, the factory PCV is eliminated. Oil starvation is a serious condition that can cause engine failures in fractions of a second. This is excessive amounts that causes plumes of smoke to pour from the exhaust, and engines to fail due to oil starvation. This goes beyond light oil and vapor ingestion discussed above. Lastly, under racing, or hard-driving, and high G-force conditions, excessive amounts of oil can be forced through the system to be consumed by the engine.
You’ll end up with less horsepower, possibility of turbocharger failure, and possibility engine and component damage. Crankcase pressurization also results in blown seals, such as the infamous rear main seal. Pressurization of the crankcase causes oil to force past the piston rings, leading to potentially engine destroying localized pre-ignition points on the crown of the piston. Boost leaks rob you of power, and can lead to over-spinning of the turbocharger. The N80 valve can’t hold back the pressure, causing a boost leak into the activated charcoal filter. The diaphragms can fail over time, causing massive boost leaks and over pressurization of the engine crankcase. Next, boost pressure and extreme heat is applied directly on the diaphragms within the PCV valve, and directly onto the factory activated charcoal filter solenoid, or N80 valve. This means less horsepower, and the possibility of engine damage. More importantly, oil vapors lower your effective octane level, leading to performance robbing, and engine damaging, knock. Not only does this cause a mess, it lowers the effectiveness of the intercooler.
Oil coats the intercooler, hoses, and everything in its path. It’s sucked through your turbo, blown through the intercooler, and forced into the engine.
#HOW TO INSTALL OIL CATCH CAN MK5 GTI BSH UPGRADE#
The APR Catch Can System with PCV Plate is a comprehensive upgrade to your engine's Positive Crank Ventilation (PCV) system.
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