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Discussion Starter #1
anyone have a writeup of installing an aftermarket boost guage?
 

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Look behind your throttle body. See that plugged hole? Take the bolt that plugs the hole to the hardware store with you.

They will have bolts that have vacuum line hook ups comming from top of them.

Get the right size. Screw the vaccum bolt into the hole behind the throttle body, run a vacuum line off of it, into the cabin and into the back of the boost gauge.


Or just use a T splitter and run it off of a vacuum source such as the FPR, but if you do run it from the FPR make sure you put a filter or screen somewhere in the vac line.
 

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Your boost gauge should come with that bolt if it's a quality one. My autometer 20psi boost gauge came with it, and enough vac line to hook it up.
 

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Discussion Starter #4
Yeah, its an autometer one, i think it does come with everything.
 

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Discussion Starter #5
How/where do you run the hose for an A pillar boost guage? Anyone have a write up?
 

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No need for a write up. There is a rubber gasket on the firewall just to the left of the brake booster. There is either already a hole in it, or you can cut a hole, and run the line through that. If you need more explination, I can go out and take a couple pics for ya.
 

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Discussion Starter #8
Red October..., I am installing it on my bro's 86 turbo z31
 

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Discussion Starter #10
oh really?

what is the best vac hose to T it onto to get the most accurate reading?



Post Edited (Mar 21, 4:27am)
 
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