Boost Gauge Source Nightmare
03-12-2018, 03:57 PM
#1
Racer
Thread Starter
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)
03-12-2018, 06:27 PM
#3
Race Director
Member Since: May 2004
Location: Raleigh, NC
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St. Jude Donor '15
Are you WOT and at higher RPM's when it keeps reading vacuum?
03-12-2018, 09:25 PM
#4
Race Director
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Location: Atlanta, GA
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2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
try running it separate from the bov instead of tee'd into the same line
03-12-2018, 09:42 PM
#5
Instructor
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)
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.
03-13-2018, 03:07 AM
#8
Racer
Thread Starter
Originally Posted by HouseS2k
Mine is Teed off the brake booster. Works great.
03-13-2018, 03:08 AM
#9
Racer
Thread Starter
Originally Posted by Daddy Freeman
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.
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.
03-13-2018, 06:23 AM
#10
Vaccum block is the answer. You need a better signal with multiple things running off boost/vac .
03-13-2018, 01:26 PM
#12
Team Owner
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.
03-16-2018, 07:12 PM
#13
Platinum Supporting Vendor
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.
03-18-2018, 10:17 AM
#14
Instructor
The real problem is you haven’t got Car off jack stands isn’t it. 
Everyone does this pretty much on their first boosted gauge install. Yes you should be reading zero. Go drive around block.
Everyone does this pretty much on their first boosted gauge install. Yes you should be reading zero. Go drive around block.