[spookypt]

Hi everyone, I'm chasing some info....

My cobra basically is running a NASCAR Spec 351w. 4 stage dry sump with all the bells and whistles 13:5 comp bla bla..

What I'm curious about is my dry sump pulls substantial vacuum and yet it isn't fitted with a crankcase vent. It has a vent on teh DS Tank but essentially teh engine is sealed. So at high rpm (say 8500) what stops it sucking its guts in. (Gaskets etc)

I'm planning on fitting a Moroso Crankcase vent (+12) off the rocker cover and set inside a catch can to eliminate the potential for this to happen.

I also understand without this its bloody hard to get piston ring seated?

What do the NASCAR guys do?? Do they have a vent off teh rocker covers?

Spookypt