Boost gauge vacuum line location

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Dirtnastyfox

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Mar 15, 2019

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Mar 15, 2019

#1

• Mar 15, 2019

• #1

I have a belt driven powerdyne system and was wondering where I should attach my vacuum line? It’s on an 88 lx 5.0

 

JD1964

there is enough sticking out to grab on to

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#2

• Mar 15, 2019

• #2

Does the 88 have the vacuum T on the firewall? I have mine on my 92 hooked up there.

 

D

Dirtnastyfox

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Mar 15, 2019

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Mar 15, 2019

#3

• Mar 15, 2019

• #3

It’s got this, if that’s what you mean?

 

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JD1964

there is enough sticking out to grab on to

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#4

• Mar 15, 2019

• #4

Yes, tap in there if there’s an available port. If none are available you can cut one of the lines and install a T

 

D

Dirtnastyfox

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#5

• Mar 15, 2019

• #5

Okay so I can just run it to any of those that are free?

 

JD1964

there is enough sticking out to grab on to

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Mar 16, 2019

#6

• Mar 16, 2019

• #6

Dirtnastyfox said:

Okay so I can just run it to any of those that are free?

Click to expand...

yes

 

mikestang63

SN Certified Technician

Aug 27, 2012

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Mar 16, 2019

#7

• Mar 16, 2019

• #7

you need to have it on its own vacuum source or it will not be accurate

 

JD1964

there is enough sticking out to grab on to

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Mar 16, 2019

#8

• Mar 16, 2019

• #8

mikestang63 said:

you need to have it on its own vacuum source or it will not be accurate

Click to expand...

Can you clarify this mike?

In my mind, the source is the intake manifold plenum, which is the only “source”. There are different locations to tap into this source. The way I see it, as long as there’s no leaking lines or connections, the signal from the source should be the same regardless of where you tap in.

 

TOOLOW91

If you're the village idiot what's that make me?

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Mar 16, 2019

#9

• Mar 16, 2019

• #9

Mine goes right to my vac tree . Far as I have seen it’s on par with my data logs out of my holley efi

 

mikestang63

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Mar 16, 2019

#10

• Mar 16, 2019

• #10

John Dirks Jr said:

Can you clarify this mike?

In my mind, the source is the intake manifold plenum, which is the only “source”. There are different locations to tap into this source. The way I see it, as long as there’s no leaking lines or connections, the signal from the source should be the same regardless of where you tap in.

Click to expand...

just sharing what Chris Richard at Pro M has said for many years.. Boost gauge, Boost bypass. MAP Sensor and FPR should be on their own dedicated vacuum source, and you don't want them sharing another vacuum source or it can throw off the readings. . what do I know.... I just have my gauge attached to a dedicated vacuum line from the back of the upper. skip ahead to 18 minute mark on the video as well..