[Shotimes] plugging valve cover vent?

[van Oss]

Justin, sorry, you have it backwards.  The tube from the throttle body to the valve cover is supplying vent air going INTO the
crankcase.  Air is drawn OUT of the crankcase through a larger hose that lies under the snakes, feeding vent air back into the
throttle body to be combusted.

If you close off the supply tube, theoretically you might create a little vacuum in the crankcase.  This might be good for a little
power and might help prevent some oil leaks.  That's theory.  Also, I don't think we know yet whether there might be any unwanted
side effects.

I have PCV supply tube clamped off on my 91.  It seems to help power, but that's only butt dyno.  Paul Nimz, what have you found?

Joseph van Oss


----- Original Message -----
Anyway, I don't think it would work. I mean, the name itself is
"valvecover vent". It's sucking fumes from the crankcase, into the
intake to the combustion chambers to be burnt up. Like a PCV valve
setup, right? If it were plugged off, I'd assume there would be a
pressure build up and more oil would be finding its way past the seals,
not the other way around.
Justin Schick - '92 SHO cruising around KC MO