BOV Vacuum Source Location

[Chad989of2000]

Where are you guys running your BOV vacuum source from? I have a 1G BOV and an external wastegate. The reason I bring this up is that I also am running a HKS EVC EZ (EBC) and the unit needs an uninterrupted vacuum source, so I'm using the port right on the intake mani immediately following the TB. This is where I originally had my BOV hooked up to. Can I tee into this line or is there another good source for the BOV?

 

[AllanL]

+1 here for this question...
have a 1G N/A intake.
was planning on putting a hose fitting on the EGR vacuum port currently plugged with an Allen bolt.
currently have the egr block off plate as emissions is not an issue.
thanks.

 

drill and tap a new one.

 

[bigblock4g63]

nevermind

 

[Chad989of2000]

I t'd my bov off the ebc to intake mani line and it seems to function fine.

 

[AllanL]

can i tee d pcv? thanks

 

[mikus]

Ideal scenario is a unique line for all of BOV, FPR, Brake, PCV, gauge.

- PCV is generally no good to tap for anything.
- BOV is an experiment - some tap no problems, others re, each car varies. Keep it off your brake line though.
- FPR and Brake are both safety risks, but also are closed system... I wouldn't mess with brakes at all.

You can see why having that one extra line is a big deal. When intake manifolds can be had for cheap/free, and are easy to change, I see no reason to compromise on this...

 

[Chad989of2000]

FYI I do have the intake mani with the vacuum port...just using it for the EBC. So I'll just stick with the BOV t'd with the ebc and intake mani then.

 

[spooln4fun]

I've always t'd mine off the fpr, but as previously said each should have its very one port.

 

[belize1334]

The BOV should always have it's own dedicated line. The reason is that the BOV diaphragm physically moves when activated so it's not just a signal port. It's actually moving air through that hose. That's why it's a 3/8" hose instead of 1/4" like the rest of the systems. You don't want the demands of the BOV to influence the signal on your fpr or EBC lines.

I personally run the brake, bov, afpr, VPC, CCV all off of their own signal lines. The all have dedicated ports off of the intake manifold. Then I run my EBC and boost-gauge off of the p-port on the throttle-body.

 

[Chad989of2000]

^^^Do you have a pic of your setup? So your EBC and boost gauge have a shared line? I currently am running my boost gauge off of the P Port.