Originally Posted by PGreenSVT
Going to disagree with you gentlemen, but nothing new with that.
There have been plenty of folks who have done it wrong with disastrous effects like blown main seals from too much crankcase pressure.
The lack of vacuum will result in increased amount of blow by. The vacuum pulled on the crankcase Actually helps seal the rings against the cylinder walls. That's why lots of racers run vacuum pumps Rob.
If you decide to do this make sure you use a 1" line. You might get by for a while with 3/4" but I wouldn't do it.
There is absolutely nothing wrong with using 3/4" hose as that is the factory size hose fitting for the CCV. You will not "increase" flow by using 1" since it has to go through a 3/4" fitting to get to the hose anyway. As long as there are no kinks or high spots in the hose, you should never have an issue.
That being said, I use a canister and route back to the intake. I mainly did it because of the smell, but I also did not want to mess with the vacuum effect going on.
Here is my setup...
This is on my 7.3L, but it is the same concept for the 6.0L