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Forced Induction Turbochargers and Superchargers..Got Boost?

Where does everyone have their line tapped for boost gauge?

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Old 08-25-2017, 08:47 AM
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crd00
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Default Where does everyone have their line tapped for boost gauge?

Where does everyone have their line tapped for the boost gauge? I followed the only writeup I could find online and ran a line to the nipple on the front of the plenum but the boost readings arent consistent. Im assuming its the wrong location.

Ive read of a few spots to T into but cant see any clarification on it. Pictures would also help! Thanks!
Old 08-25-2017, 10:30 AM
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iideadeyeii
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There's a line off the rear of the plenum that I put a T-fitting on and I get mine from there.(pretty sure I had to reduce the size)

Last edited by iideadeyeii; 08-25-2017 at 10:34 AM.
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Old 08-25-2017, 11:50 AM
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bealljk
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for a boost gauge off the plenum. I'd look into a vac block.

@ii, are you plumbing your side-port waste gate from the plenum? (hard to tell from the picture)
Old 08-25-2017, 12:20 PM
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crd00
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Thanks for the replies guys, currently I have my a/f ratio gauge from the hose you are specifying dead eye, so I can tap into it again for the boost gauge?

Like I said, I currently have it from the nipple on the front passenger side of the plenum, but every time I start the car the boost gauge needle is at a different number, its not consistent. Its not reading negative pressure so this nipple area must be no good Im assuming.

If it helps, I'm running a voretch v3 supercharger
Old 08-25-2017, 12:59 PM
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iideadeyeii
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Originally Posted by bealljk
for a boost gauge off the plenum. I'd look into a vac block.

@ii, are you plumbing your side-port waste gate from the plenum? (hard to tell from the picture)
That's not my picture. I just grabbed it off google to show which place i was talking about that I tapped into.
Old 08-25-2017, 01:00 PM
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iideadeyeii
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a/f comes from exhaust
Old 08-25-2017, 02:24 PM
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Originally Posted by iideadeyeii
a/f comes from exhaust
Sorry, didnt mean a/f ratio, i meant my bypass valve
Old 08-25-2017, 03:22 PM
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Nic Boitnott
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I have my blow off and boost gauge from that line deadeye mentioned, with consistent readings.
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Old 08-25-2017, 05:42 PM
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Originally Posted by iideadeyeii
That's not my picture. I just grabbed it off google to show which place i was talking about that I tapped into.
Thank god!!
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Old 08-25-2017, 07:29 PM
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Anyone else have a boost gauge installed in their 350?
Old 08-25-2017, 09:51 PM
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bealljk
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Originally Posted by crd00
Anyone else have a boost gauge installed in their 350?
Everyone has a boost gauge installed on their 350z...

what's your concern? why are you worried? what are the inconsistencies? it's a stupid gauge doesnt mean much...just tap it off the plenum and be done...
Old 08-25-2017, 10:30 PM
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Nic Boitnott
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^^
Old 08-28-2017, 08:28 AM
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crd00
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Originally Posted by bealljk
Everyone has a boost gauge installed on their 350z...

what's your concern? why are you worried? what are the inconsistencies? it's a stupid gauge doesnt mean much...just tap it off the plenum and be done...
LOL relax there bud, no worries on this end. I paid x amount for this gauge and its not working correctly where I have it "tapped off the plenum" where you suggest.

Ill throw in a nipple where my blow off valve is and see what happens. Thanks for the replies deadeye and nic




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