Thanks, are you talking about the oil control rings specifically or also the compression rings?
Originally Posted by newe46fan
Very well done!
However, A vacuum in the crankcase is beneficial in our case since our engines employ the use of low-tension piston rings.
That small amount of vacuum helps the piston rings seal better. among other things.
A catch can setup that creates vacuum in the crankcase would be the ideal setup.
The vacuum inside the crankcase is only about .5 inHg. I have a reason to believe that increasing the vacuum between 6-8 inHg will net some HP gains.
'04 330Ci Clubsport | Estoril Blue | 6MT | Black Leather/Silver Cube
Turner Motorsport | Ground Control | Stett Performance | Moroso | Powerflex | Meyle HD | Goodridge