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Need BOV recommendations


slick
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Gonna be taking in the charge pipes for powdercoat here soon, so before hand, I want to go ahead and get a BOV bung welded on.

 

Not looking for anything super loud. In fact, I'm more concerned about how well it works over how loud it is, or how it looks.

 

I can afford pretty much any BOV that I know out there, but lets be realistic, I don't want to spend a stupid amount of money on it.

 

Thanks.

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Horribly loud? I hate drawing too much attention to myself.

No, its not very loud unless you slam the throttle shut from a high opening. Even when you go from WOT and slam it shut, its not that loud.

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On another note, I see for BOV installation, there is a vacuum line hooked up to it. Where do you guy's T in at?

 

If I were adding a BOV, I would add a vacuum block(with at least two nipples/vacuum sources) at the rear of the plenum where that plug is now. The plug is in the center where you would normally connect a vacuum brake booster hose. The vacuum block would come in handy for a BOV, boost gauge, etc.

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Ah... just just a hose to a vacuum distributor, of sorts?

 

Yep. The 5spd swapped guys have it even easier, they just steal the fitting that used to run to the vacuum modulator on the auto trans. :lol:

 

By the way, the fitting on the back of the intake is either 5/16'' or 8mm in size(not sure if it's metric or standard, but I can check if need be). The plug is considered a "pipe plug." You can grind an old 3/8'' extension down to fit it if you do not have pipe plug sockets or can't find any. I ground an old 4'' long 3/8'' extension down to remove it when I was installing a boost gauge on my car. Two weeks later, I ended up finding a metric + standard pipe plug socket set locally. :razz:

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Man, must be nice!

 

Looked around, looks like something simple enough to make, but I will probably just buy one for the sake of time. Is the plug threaded, or is it a nipple that is plugged on the back of the plenum? In either case, what is the correct thread for the hole?

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I just tee'd into the main vacuum harness going to the cruise, HVAC, vac ball. I went upstream from the T by the cruise and cut the vacuum line and spliced in a rubber T there. Connect the vacuum line I cut with the T and on the open port, run a line to the BOV.

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Nevermind, totally forgot we have all those fittings and adapters. We use them to measure manifold pressure, usually in inches of water column. So yeah, got all the fittings for a vacuum block.

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