Vacuum line/BOV/welding tip question

[Sgt]

So I've been getting my z32 back together after a long hiatus. I use welding tips to up my boost from the stock 7psi to about 13-14psi. I have atmospheric blow off valves. I am getting everything connected back up and I have come to reconnect the vacuum lines to the waste gates, blow off valves and pressure source.
I just wanted to clarify the correct location to reinstall the welding tips relative to the blow off valves.
Should the welding tips be in the vacuum lines before the blow off valves or behind the blow off valves/tee in the vacuum line (only before the waste gates)?

Hope that I worded that well enough. If my question is confusing I will sketch this and upload a pic.

Thanks guys!

[DCaff300ZX]

Personally I'd advise against most everything you've done, but that's me and you have a question...best I can do is mention that the idiot PO of my Z had put his tips near the end of the boost lines (but about 4-6" back, effectively hiding them from detection) at the hardpipe end, nearest the recirculation valves, so I'd assume that BOV's (definitely NOT recommended for the VG30DETT) would want the same thing since they do the same job, except for wasting created boost instead of recirculating it for better acceleration and engine response by not having to re-create/refill boost after throttle lift.

[Sgt]

I bought the car with the atmospheric bovs on it. I'm aware they are inefficient and waste boost/metered air. Gota admit they are fun though. I've owned the car for around 7 to 8 years now. I installed the welding tips myself a few years ago.

When you say you wouldn't recommend what I've said, is that mainly in reference to the atmospheric bovs or the welding tips as well? I've always understood the welding tips to be a superior option to a manual boost controller, as they don't spike.
Just curious what you have to weigh in on it?

[Sgt]

Through research I have found the answer to my question, which I will share for anyone who may be wondering the same thing.

Neither of the two options I presented are correct. The blow off valve vacuum source should come from the intake manifold (and not the nipple on the intake hard pipes after the intercoolers). Blow off valve vacuum source must be after the throttle bodies. It seems I bought my car with them installed incorrectly, however they did function seemingly properly, although likely not ideally.

[DCaff300ZX]

I bought the car with the atmospheric bovs on it. I'm aware they are inefficient and waste boost/metered air. Gota admit they are fun though. I've owned the car for around 7 to 8 years now. I installed the welding tips myself a few years ago.

When you say you wouldn't recommend what I've said, is that mainly in reference to the atmospheric bovs or the welding tips as well? I've always understood the welding tips to be a superior option to a manual boost controller, as they don't spike.
Just curious what you have to weigh in on it?

I was unaware that you have had the car in this state for some time. My comments were regarding using BOV's period on a Nissan, plus not going about things in the known best way. I've never heard anyone try to argue that welding tips are better than anything, other than a non-OEM boost timebomb for a person with no money for upgrades.
When my TT went down and I was forced to let my Z guy tackle it, the cause of my dead turbo and overall issues were blamed on the welding tips he found hidden deep in the boost lines, and some further jury-rigging to make it "work"...sound familiar?