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Old 06-04-2006, 02:44 AM   #1
AveyWRX
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Default Question on boost gauge

I installed my boost gauge today. Everything went in ok and it seems to be working right. But when I get the boost up over 5psi the gauge needle flutters a bit and you can hear a ticking sound from it. It happens if I go WOT. I've also heard it tick when decelerating but it isnít as bad. Almost sounds like a bad rattle.

The boost gauge is a Omori 45mm mechanical boost gauge.

Is that a normal? Or did I hook something up wrong? Or is it maybe a bad gauge?

I double checked that the side of the "T' with the restrictor pill is going to the gauge. I also have all the tube connections zip tied.

My gut is telling me its a bad gauge. Just wanted to get a second opinion before trying to exchange it.

Any input would be great.

Thanks
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Old 06-04-2006, 03:21 PM   #2
Bluwater
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i just installed the same gauge friday night. I also notice a rattle...

any info about this would be great.
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Old 06-04-2006, 03:26 PM   #3
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Hm, I have the same one and it's fine. Since it replaced the OEM gauge I just disconnected the existing line from the old gauge and connected it to the Omori, so I'm using the restrictor from the Lamco gauge. Still there shouldn't be any difference.
Where on the engine did you connect the gauge? It should be tapped into the line to the bypass valve.
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Old 06-04-2006, 06:08 PM   #4
AveyWRX
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Prety sure I hooked it to the right place. I'll take some pictures and post them
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Old 06-04-2006, 06:12 PM   #5
AveyWRX
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Old 06-04-2006, 06:22 PM   #6
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That is an unusual spot to put it... Most tee it off of the line at the BPV. That's the factory gauge's pressure source.
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Old 06-04-2006, 10:07 PM   #7
AveyWRX
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I was going off these instructions: http://www.j-spectuning.com/installs/wrxmechboost.pdf

So should I move the connection by the BPV?
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Old 06-04-2006, 11:34 PM   #8
AveyWRX
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I moved it to the line off the BPV. It seems like the noise went away.

The gauge I got came with a second T. The other T was larger on the the sides going to the line. I switched over to that one since the other one I was using was to small for the line off the BPV The first T fit perfect for the line I had it hooked to originaly.
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Old 07-12-2006, 02:40 PM   #9
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Default Boost gauge 'T'-in

I brought this thread up because I am getting ready to install an electrical Omori boost gauge, and I am a little confused as to where to tap into to get a good turbo/vacuum reading. According to J-Spec's site (whom I bought the gauge from) it is tapped at the BPV, and then I have noticed that other people will tap into the line at the FPR.

Please, would someone solve this issue?

Editted: I typed BOV instead of BPV.

Last edited by wrXmon; 07-12-2006 at 05:03 PM.
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Old 07-12-2006, 03:35 PM   #10
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At the BPV, do not use the FPR. People have messed this up, run lean under boost, and blown their engines.
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Old 07-12-2006, 05:04 PM   #11
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Quote:
Originally Posted by WR^2X
At the BPV, do not use the FPR. People have messed this up, run lean under boost, and blown their engines.
Thank you.
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Old 07-12-2006, 05:48 PM   #12
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Quote:
Originally Posted by AveyWRX

i've had mine mounted here too for over 4years and have never had that issue. i've had 2 different boost gauges and no flutter.
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Old 07-12-2006, 06:00 PM   #13
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Still not clear enough... I want to make sure that I get the most accurate reading for boost/vacuum pressure when I install my gauges (the other one is an electrical oil temp), and it seems there are two different places to install each sensor/line. I was told by a friend that the closest place to the throttle body on the intake manifold is best, and I'm thinking this is it:



Again, someone please clarify.
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Old 07-12-2006, 06:18 PM   #14
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Use the BPV hose. If you follow it down you will see that it goes to the manifold directly under the TB. This is the location Subaru recommends for the optional OEM gauge and everyone else uses it too.
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Old 07-12-2006, 06:56 PM   #15
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Quote:
Originally Posted by Mulder
Use the BPV hose. If you follow it down you will see that it goes to the manifold directly under the TB. This is the location Subaru recommends for the optional OEM gauge and everyone else uses it too.
Thanks, Mulder. Clarified.
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Old 10-12-2006, 02:32 AM   #16
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sorry to revive an old thread here, but im a little confused were to t off as well. whats the bpv? another name for bov?
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Old 10-12-2006, 08:12 AM   #17
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No, the two are very different, but you are probably thinking of them as being the same. It's the thing attached to the front driver's side of the intercooler. Tee into the small vacuum line coming off of it.
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Old 10-12-2006, 10:51 PM   #18
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so this guy is where i need to T in? i thought this was the bov..haha im retarded.

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Old 10-12-2006, 11:54 PM   #19
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anyone? is that the right place to t in?
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Old 10-13-2006, 08:05 AM   #20
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Yes that is the correct place. The pic shows the factory bypass valve which is commonly (and incorrectly) referred to as a BOV.
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Old 10-15-2006, 11:56 PM   #21
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Quote:
Originally Posted by brando3wagon View Post
so this guy is where i need to T in? i thought this was the bov..haha im retarded.

So my assumption is that you would T in right before that valve or to the right of it as you're looking at it in that picture?
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Old 10-16-2006, 12:00 AM   #22
brando3wagon
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yeah..i think im going to just get a small piece of the same size hose and plug it into the bpv, then put the t in that, then put the orignal bpv hose on the other side, in case i need to take out the gauge for any reason.
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Old 10-16-2006, 12:03 AM   #23
boostpower
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Quote:
Originally Posted by brando3wagon View Post
yeah..i think im going to just get a small piece of the same size hose and plug it into the bpv, then put the t in that, then put the orignal bpv hose on the other side, in case i need to take out the gauge for any reason.
That's a good idea as long as the length of the hose doesn't have to be kept a particular length. Cutting things always makes me nervous anyways lol. I can't wait to install my gauge now, but I need a piller or something to put it in lol
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Old 10-16-2006, 12:09 AM   #24
brando3wagon
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yeah im only going to add like a 1" piece..maybe ill just cut it..depends on how lazy i am when it comes what kind of gauge do you have? and what size? im gettin a pretty sweet lookin deal, omori 45mm (its in psi and maches my 03 interior ) and a pod to put on my steering wheel column for 140.
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Old 10-16-2006, 12:12 AM   #25
boostpower
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Quote:
Originally Posted by brando3wagon View Post
yeah im only going to add like a 1" piece..maybe ill just cut it..depends on how lazy i am when it comes what kind of gauge do you have? and what size? im gettin a pretty sweet lookin deal, omori 45mm (its in psi and maches my 03 interior ) and a pod to put on my steering wheel column for 140.
I got the Prosport 52mm Mechanical, $35 shipped. I just have to figure out how I want to mount it. I only have the one gauge so I don't want the 3 pod where the clock is and I'm not so sure I really like the mounting on the stearing wheel like the OEM ones are.
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