Anybody w/ boost controllers

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07-18-2002, 04:20 PM

SwiggA88zxt

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Anybody w/ boost controllers

What did you do about the pop off valve? Plug it?
Shim it? How?
Buy an adjustable one? Where?
I just installed a boost controller and it all was going out the POV. I can't find an aftermarket one. Seemes foolish to plug it with a bolt. I guess? I don't know what to, but want to play it safe.
thankz Jay

07-18-2002, 10:17 PM

texp51

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Re: Anybody w/ boost controllers

I've got a boostvalve.com unit but have been very hesitant to put it on. Does your's make that annoying high-pitch squeal as it bleeds pressure off? Let me know how you like yours.

07-19-2002, 12:23 AM

ZenArcher

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Join Date: Mar 2001

Location: Houston,Texas,USA,

Posts: 241

Re: Anybody w/ boost controllers

Some plug it, some modify it w/ fender washers or a stronger spring, some buy the Greedy (yeah I know how it's spelled) adjustable. I used washers but when I replaced my plenum with an NA plenum and I left the bolt in. The wg is very, very, very unlikely to fail and if it does a vac hose will blow off. texp51, I think you have the POV (emergency release valve) which is OEM mixed up with a BOV (bypass or recirc valve) which Nissan did not provide for the z31's. That is what, when vented to atmo makes the sound, between shifts, that all the ricers crave.

ZenArcher

07-19-2002, 04:41 PM

SwiggA88zxt

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Re: Anybody w/ boost controllers

I took off the POV and pluged it. I couldn't figure out how to take appart the POV. Also how much boost do you run? I've read what you have. I bought the car w/ a catback already on it (don't know what size pipe it is) but am thinking about the 3" turbo back that you got from CM. Is it worth it? or just a down pipe. What's the difference between an n/a plentum.
sorry for all the questions. You have alot that I want to do to my Z.
Jay

07-19-2002, 05:00 PM

SwiggA88zxt

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Re: Anybody w/ boost controllers

Now that I got the boost higher (8.5psi) the car is quicker. I raced a Talon last night. Basicly he was in second gear trying to swirve around me so I hit it (in 3 gear). dusted him by at least a car length. Dont know if it was turbo ( I didn't see the back of his car. lol) but I hope it was because I felt great after that.
Yes, definetly install it. I have the HP TurboXs one works great but I don't like adjusting it with the allen key.
I agree with ZenArcher you are probally thinking of a BOV. But the intake is much louder than before. I can barly hear my exaust. My plans are for spearco intercooler kit next spring w/ a BOV because it releases the back pressure to keep the turbo spinng.
hope this helps for you to decide what to do to your car
JaySwiggA

07-20-2002, 08:37 AM

Sama3d

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Re: Anybody w/ boost controllers

I got a pretty much stock Z with max boost at 11psi. I think thats pretty safe. Ive hit 11psi no problem although Ive never sustained it for over 2 minutes so i dont know for sure.

07-27-2002, 08:07 PM

Engloid86T

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Re: Anybody w/ boost controllers

Texp51:

Boost controllers don't make high pitch squeals when letting out air. It's probably a blow off valve you're thinking about.

More:

I use a higher pressure spring to mod them.