Vented Oil Cap
Having a properly vented crank case is vital to the performance and life of the engine. Our Pcv systems work well for a stock non modified set up. However when we start to modify the car and add boost we increase the crank case pressures do to the elevated pressures in the combustion chambers getting past the rings. At this point the PCV system becomes to small to keep up and must be vented to keep crank case pressures to normal levels. Once we start adding Catch cans this compounds the issue as Catch cans are restrictive to system although vital. This is where the third breather comes into play… You have a few options on this. One is you can drill and tap the valve cover as we did on the race car or Two you can add one of our Vented Oil Caps.
Crank case pressure are a big cause of rear main seals to blow out and also cause a loss of power. Yep you heard correct… Relieving high crank case pressures will actually free up a good amount of power, in some cases up to 10hp have been recovered! Every race car or performance car out there has some type of extra venting or a vac pump set up for these reasons.