Can the PCV valve share a vacuum source??

Subscribe
Dec 24, 2003 | 01:53 PM
  #1  
I am hooking up my new motor. Its a 350 with the miniram intake. Its the older cast so they didn't provide me with enough vacuum ports for everything. What I would like to do is "t" the PCV valve into the same vacuum line that my brake booster is using. Can I do this, or does it have to have its own seperate source?

Thanks
Reply 0
Dec 24, 2003 | 02:14 PM
  #2  
i would just drill and tap a new hole in the intake...

if you dont already have it installed on the motor...
Reply 0
Dec 24, 2003 | 03:08 PM
  #3  
Thats not an option at this point in time. This is one of the last few things to hook up before I fire it up and no way I am pulling the intake. Thanks for the reply.

So can somebody tell me if this is ok or not and why?

Thanks
Reply 0
Dec 24, 2003 | 03:49 PM
  #4  
i would prefer to have it connected to its wn dedicated source, but i dont see any type of major prbolem if u absolutely have to T it into another connection.. Just remember it will pull gunk/garbage/vapors thru it, which is why i would rather see it using its own source... Make sure u use the one way check valve/filter combo like the older carbed cars used for the line to the booster, help keep some garbage out i would imagine

LAter
Jeremy
Reply 0
Dec 26, 2003 | 11:42 PM
  #5  
Great advice. Like most things, there's the right way, there's the wrong way and there's the way it going to be done

Should have a dedicated plenum source.

You asked, right?

Jake
Reply 0
Dec 28, 2003 | 08:42 PM
  #6  
Im not a expert or anything like that im just putting my 2 cents worth in hoping it might help. If you T'd it closer to the plenum then you should be alright considering that air is trying to be pulled from the booster and any "junk" pulled from the top of the head "pcv" valve will more than likely go to the plenum and not to the booster.
Reply 0
Dec 29, 2003 | 08:38 AM
  #7  
Quote:
Originally posted by Bri3212
Im not a expert or anything like that im just putting my 2 cents worth in hoping it might help. If you T'd it closer to the plenum then you should be alright considering that air is trying to be pulled from the booster and any "junk" pulled from the top of the head "pcv" valve will more than likely go to the plenum and not to the booster.

thats not really the issue..

think of this..



the brake booster has a nice BIG (for a vac line) vac line.... it needs to move a decient amount of air, and fairly quickly to keep the brakes ready and boosted all the time...


the PCV has a big vac line because its trying to suck a good amount of fumes out of the motor.

if you connect the two with a T.. the part between the manifold and the T would have to be alot bigger then the other two, or its going to be a restriction compared to what was there before.....

i would pull it off and tap another connection...
Reply 0
Subscribe