Rear Main Seal Stop Leak

[blykins]

You will never suck an oil pan in, especially with just a PCV valve. I have dry sump engines that pull around 15 inches of vacuum on the entire engine.

The PCV valve is simply just a check valved vent. At WOT, it does nothing. You normally complement the PCV with a valve cover breather or another source of venting.

I don't use PCV valves. I hate them. They have caused more issues than they help, especially on a higher end engine. Guys don't pay attention to them, the valves fail, or are not sized correctly, and then the engine starts smoking...

[patrickt]

But if you are going to use one, get one that is adjustable, so you can measure it, tweak it, and play with it. And, you might as well fab in an oil separator as well. Remember, working on these cars is almost as much fun as driving them.