What to do with my PCV valve?? Pic in thread

[trailtoy83]

My TB adapter nor my N* TB has a spot for my PCV valve. What should I do, I though off taping my EVAP port and running it there or on the vaccum hose tee where the master cylinder hooks to as I have manual brakes. What do yall think.

[sco77]

That's weird your N* TB seems to be missing the vacuum tube at the top right above the throttle linkage, it looks like it is plugged with some kind of little freeze plug in your picture. Strange.

[dbextreme]

That is weird. Where did you get your TB? If you ordered it from Intense or ZZP they might swap it out for you...

You seem to be mechanically inclined so it should be an easy fix if you can not get your TB swapped out. You are suppose to have a nipple on your TB (see red circle). Sco is right, it looks capped or plugged with something that you might can take out and/or drill through then install a nipple for vacuum. You can drill and tap your adapter plate also installing a nipple there.

Next question might be a stupid one, but isn't the hole circled in yellow the evap port on the Gen V? Doesn't it see vacuum or no? I've always wondered if one can use some plate with a nipple on it so you could just loop your pvc around to it instead of just blocking it off. I'd route all the pvc barbs/ports to it and not tap into anything existing.. Just my $.02

[BillBoost37]

It's just plugged most likely. If there's a plug.. pull it out and tap in a fitting.

[mkyota1]

You do not want manifold vacuum to that pcv nipple. That is for the fresh air intake part of pcv. You can either remove that cap on the northstar and put in a fitting like bill said above or run the hose to a fitting anywhere between the MAF and throttle body. As far as the evap you can tap that hole and plug it or make a block off plate.

[trailtoy83]

Thanks guys ill have to look at it again, drilling and tapping it would be no prob. Thanks for the input

[sco77]

You CAN use the evap port, that would be fine since it's pre-supercharger so it will only see vacuum. You tap the EVAP hole using 3/8 NPT.

[mkyota1]

I disagree. That nipple is for filtered air intake for the pcv. This is not the suction side of the system so you do not want to hook it up to vacuum. The info I posted above is correct.

[Booba5185]

I was always under the impression that the PCV had to be connected AFTER the MAF sensor, but BEFORE the throttle blade in order to operate properly. I had to do the same thing the OP is going to do, only my TB was a L67 TB. I followed this thread:

http://www.grandprixforums.net/how-g...her-44478.html

[BillBoost37]

Correct, post maf as the air doesn't need to be metered by the maf...and yet pre throttle blade, so it isn't under a vacuum.