PCV System with the TRD Supercharger

[Iceaxe]

CDan, thanks for leaning in and sharing what you decided to do regarding the PCV routing. I think I'll do the same. Plus, seems like I can save a little bit of cash on a 2nd catch can...!

 

[NLXTACY]

CDan, thanks for leaning in and sharing what you decided to do regarding the PCV routing. I think I'll do the same. Plus, seems like I can save a little bit of cash on a 2nd catch can...!

My thoughts as well. I need to get the right hoses together. my Wits' End spidey senses are tingling

 

[cruiserdan]

I'm happy with it, especially with the clean bill of health given to the blower by PSE when they went through it. This routing eliminates any concern about a PCV valve failing and allowing boost pressure to pressurize the crankcase. A correctly functioning PCV valve will not allow this but you don't have to worry about it.

 

[thetoyotaman]

Yes, also thanks! Did you learn anything you would recommend or change on service intervals for the sc?

 

[DARKNESS]

Hi DARKNESS, yes, I know that picture was from the original poster, and I should have clarified in my comment. I'm thankful for this thread and the effort it took on your part to put it together!!

No worries. I'm modifying the diadram in the TRD instructions for clarity, but keep getting sidetracked. I'll try to post it today.

 

[DARKNESS]

Modified diagram for clarity:

 

[NLXTACY]

So PVC catch can goes in the green still, pre-tee?

 

[DARKNESS]

correct

 

[DARKNESS]

Here's where the tee goes:

 

[inkpot]

Looks good. Only other thing that comes to mind is IF the vacuum signal of the modified PVC has any negative effect on the brake booster. I'm thinkin that Dan would of noticed it if there was any problem with this!

 

[landtank]

Looks good. Only other thing that comes to mind is IF the vacuum signal of the modified PVC has any negative effect on the brake booster. I'm thinkin that Dan would of noticed it if there was any problem with this!

If I understand this right, the mod is to prevent pressurizing the engine under boost should the PVC valve fail open.

If the valve fails open after the mod you would have no boost to the brakes. Which in my experience is close to no brakes.

 

[cruiserdan]

A stuck open valve would have basically the same effect in a naturally aspirated engine. the vacuum source points in the NA variant are within ~3 inches of each other.

 

[DARKNESS]

True, and if that's what happened in this thread (SC and Oil Inhalation) then the same thing happens with the original TRD routing.

 

[landtank]

A stuck open valve would have basically the same effect in a naturally aspirated engine. the vacuum source points in the NA variant are within ~3 inches of each other.

I don't think so Dan. On a NA setup both are in the intake chamber of the upper plenum where the hose for the PVC is a much smaller % of that area compared to being T'd into a same size hose.

I'll probably make this alteration but will drill and tap for an aditional barb.

 

[landtank]

True, and if that's what happened in this thread (SC and Oil Inhalation) then the same thing happens with the original TRD routing.

his threads never make much sense to me. He states here:

Indeed the rig was thriftily sucking oil right into the intake, bogging it down on long hill climbs and causing it to spew smoke.

I'm assuming on a long hill climb the engine was under boost.

 

[Iceaxe]

Yes, the truck was under boost and sucking meth on a warm day up thousands of feet at higher altitude.

 

[Iceaxe]

... And now, after oil catch can was installed and PCV valve replaced, the rig has not had a repeat issue climbing in the mtns.

 

[Iceaxe]

... But summer is not here yet, so I want to take whatever steps I need to prevent this from happening again

 

[landtank]

you understand that if the intake plenum is under pressure it's hard to suck anything in, right.

 

[Iceaxe]

Rick are you arguing FOR or AGAINST the mod?