For the guys running single plane setups, what are you doing for crankcase ventillation? Adapting one to work? Running a vacuum pump (viable on a street car?)? Just looking for some input. Thanks.

 

Last one I setup used LT4 valvecovers and a line from the intake plenum.

Bret

 

I ran a breather in one valve cover, and a push in style PCV valve in the other. From the PCV ran a vacuum line to the intake.

I have since switched to just two breathers, i couldnt get the PCV to stop sucking oil.

 

How long have you been running only breathers? I was leaning that way, but all the research I've done says that the PCV plays a big role in keeping the oil clean during light throttle conditions.

How much oil was your valve cover PCV valve sucking? I wonder if a small oil separator plumbed inline would work...

 

A few thousand miles. I change the oil under 3k miles with synthetic so i never really worried about long term effects.

I also ran without any evac system... bad idea. I had tons of moisure build up in the valve covers.

As for how much sucking? Not totally sure, but enough to coat the intake. Im sure a seperator or catch can would work, i just never cared to try and find out. I eventually planned to run the stock AIR pump as an ultra cheap vacuum pump, but never got around to that either.

 

Was the valvecover baffled where the pcv was pushed in? If not, it needs to be to stop sucking oil.


David

 

It was the stock baffle on the passenger side

 

Add on to this post. I have a distributor hole plug that has a provision for a PCV that is really trick. Thanks to OldSStroker.

Bret

 

That sounds cool do u have any pic's Bret?
-b

 

Not yet, but I can take one today. E-mail me about it.

Bret

 

Love to see it.