Boost Gauge Source Nightmare

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Mar 12, 2018 | 03:57 PM

Sergio7

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Racer

Joined: Dec 2013

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Boost Gauge Source Nightmare

Seems like a very common thread in every single platform. Well my boost gauge reads no boost, just more vacuum when i get into higher rpm. I have no boost leaks & my BOV is working properly. I have tried with two gauges & they both work since i blew little air into them with a compressor & they would register psi. Any possible fixes? I'm getting my boost source from the manifold. (T'd off with the BOV)

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Mar 12, 2018 | 06:07 PM

C U IN REARVEIW

Le Mans Master

Joined: Jan 2009

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From: ocean springs mississippi

Sub'd

Mar 12, 2018 | 06:27 PM

schpenxel

Race Director

Joined: May 2004

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From: Raleigh, NC

St. Jude Donor '15

Are you WOT and at higher RPM's when it keeps reading vacuum?

Mar 12, 2018 | 09:25 PM

StingrayRebel

Acct Suspended APR 2026 by request

Joined: Dec 2010

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2020 Corvette of the Year Finalist (performance mods)

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try running it separate from the bov instead of tee'd into the same line

Mar 12, 2018 | 09:42 PM

Daddy Freeman

Instructor

Joined: Jul 2017

Posts: 228

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From: Southern Indiana

Quote:

Originally Posted by Sergio7

Are you trying to check it just by reving it up? If so, you won't see boost because you are not under a load. I am in now way trying to insult you. I say this because my dumb butt learned that the hard way.
The only other thing that I can suggest is to check you Blow Off Valve and make sure it is closing instead of staying open.

Mar 12, 2018 | 10:42 PM

HouseS2k

Burning Brakes

Joined: Jan 2016

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Mine is Teed off the brake booster. Works great.

Mar 13, 2018 | 12:33 AM

c6 monkey

Pro

Joined: Mar 2015

Posts: 719

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From: Burbank California

Same here, off the booster, no issues

Last edited by c6 monkey; Mar 13, 2018 at 12:34 AM.

Mar 13, 2018 | 03:07 AM

Sergio7

Thread Starter

Racer

Joined: Dec 2013

Posts: 326

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From: .

Quote:

Originally Posted by HouseS2k

Mine is Teed off the brake booster. Works great.

Well only downside to that is that i have an ecs e85 fuel system & my hobbs switch get's vacuum from there

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Mar 13, 2018 | 03:08 AM

Sergio7

Thread Starter

Racer

Joined: Dec 2013

Posts: 326

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From: .

Quote:

Originally Posted by Daddy Freeman

That's what i thought, but if i'm building boost wouldn't it atleast register some instead of staying dead 0?

Mar 13, 2018 | 06:23 AM

#10

lt1z

Melting Slicks

Joined: Oct 2007

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Vaccum block is the answer. You need a better signal with multiple things running off boost/vac .

Mar 13, 2018 | 08:47 AM

#11

gameover4

Racer

Joined: Jun 2016

Posts: 336

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From: outside new orleans Louisiana

Quote:

Originally Posted by lt1z

Vaccum block is the answer. You need a better signal with multiple things running off boost/vac .

agreed here, if not just put another T into the brake booster

Mar 13, 2018 | 01:26 PM

#12

Unreal

Team Owner

Joined: Nov 2007

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From: Gilbert AZ

Should be fine where its at. Do a pull and see. Like they said above, reving it in neutral won't show much of anything.

Mar 16, 2018 | 07:12 PM

#13

Josh@AandASuperchargers

Platinum Supporting Vendor

Joined: Jul 2011

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You won't be able to get a boost reading just free revving it at idle. Need to be driving under load enough to force the BOV closed then you will start reading boost.