Boost gauge wrecked?

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Turbo11T

Well-known member

Nov 26, 2007

3,062

751

113

Lake Crystal, MN

• Dec 28, 2009

• #1

My boost gauge, I believe it is a autometer, Reads 4 psi with the engine off. It is a boost only gauge. Would have the fact that it sees vacuum from the carb boots wrecked it? Or twisted the needle? It will pull down to 0 psi at idle. Which would be about correct by my figuring. as the motor should have about 8 in of vacuum at idle. Which is aprox 4 psi of neg pressure.

I just want to make sure I have my boost set right and with the gauge doing goofy things it is hard to feel confident.

 

B

Boosted Brad

Member

Premium Member

Dec 9, 2007

301

17

18

• Dec 28, 2009

• #2

mine has a bleedoff on the side it should read 0 when not running and - at idle

 

summitboy

Well-known member

Premium Member

Nov 26, 2007

2,146

851

113

• Dec 28, 2009

• #3

You need to bleed the guage at the altitude you ride at. Just crack the bleed screw at the op ofthe gauge and it will zero.

 

T

Turbo11T

Well-known member

Nov 26, 2007

3,062

751

113

Lake Crystal, MN

• Dec 28, 2009

• #4

zeroing

It did read zero when I first started. The setup before had the boost reference off the intercooler and I am sure there was very little vacuum now it has vacuum. I am pretty sure this has wrecked the gauge. And I want to leave it hooked where it is. So i will need to get a gauge that can read boost and vacuum i guess.

 

0

08nytromtxa

Well-known member

Dec 17, 2007

268

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28

36

tisdale saskatchewan

• Dec 28, 2009

• #5

there will be a bleed screw to let air out so it goes back to zero.. i do it on mine often.