I did a search on this and never came up with anything solid. Some said run it off the manifold, after the turbo, before or after the throttle plate.
And a lot of pictures are from very old threads that don't exist anymore.
I was thinking of T-ing it into the line that comes off the intake manifold right under the brake cylinder hose.
I am wanting a vacuum reading and boost reading. This is on a stock setup.
This is on a mechanical boost gauge.
			
			
									
						
							Boost gauge line location
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Boost gauge line location
1996 Subaru Legacy L 
1993 Subaru Legacy SS
1992 Subaru Legacy L
1990 Subaru Legacy L
			
						1993 Subaru Legacy SS
1992 Subaru Legacy L
1990 Subaru Legacy L
Re: Boost gauge line location
A good place is T'd off the line that runs from the passenger side front intake manifold runner to the charcoal canister. That gives great boost/vac readings and you don't mess with anything important tapping into it.
			
			
									
						
							93 Touring Wagon (EJ20G 5spd Swap) -- Finally back and running strong as ever!
05 Outback 2.5XT 5spd -- Now the wife can have her SUV and get in on the turbo Legacy goodness at the same time.
			
						05 Outback 2.5XT 5spd -- Now the wife can have her SUV and get in on the turbo Legacy goodness at the same time.
Re: Boost gauge line location
The one that runs off of the #1 cylinder runner? That goes to a T?James614 wrote:A good place is T'd off the line that runs from the passenger side front intake manifold runner to the charcoal canister. That gives great boost/vac readings and you don't mess with anything important tapping into it.
1996 Subaru Legacy L 
1993 Subaru Legacy SS
1992 Subaru Legacy L
1990 Subaru Legacy L
			
						1993 Subaru Legacy SS
1992 Subaru Legacy L
1990 Subaru Legacy L
Re: Boost gauge line location
Yup. I put another T between the manifold and the T that's there. Looking at the diagram, the line you were mentioning goes to the BPV and would work just as well. Pretty much any line coming off a manifold runner will do the trick.
			
			
									
						
							93 Touring Wagon (EJ20G 5spd Swap) -- Finally back and running strong as ever!
05 Outback 2.5XT 5spd -- Now the wife can have her SUV and get in on the turbo Legacy goodness at the same time.
			
						05 Outback 2.5XT 5spd -- Now the wife can have her SUV and get in on the turbo Legacy goodness at the same time.
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				cj91legss
 - Fifth Gear
 - Posts: 6322
 - Joined: Fri Jun 20, 2008 8:17 am
 - Location: Lakewood, Wa 98439
 - Contact:
 
Re: Boost gauge line location
Yes, As long as it's somewhere on the manifold between the throttle plate and heads.
			
			
									
						
							91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
			
						92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
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				tsbpenguin
 - First Gear
 - Posts: 109
 - Joined: Sun Sep 23, 2007 11:22 am
 - Location: Denver
 
Re: Boost gauge line location
Ya I T'd mine in to the line between the intake manifold and the BPV but I've been thinking about moving it because i think the gauge line is leaking slightly and it could mess with the functionality of the BPV.
			
			
									
						
							In between Subies
			
						- 
				matt00rs25
 - First Gear
 - Posts: 107
 - Joined: Tue Feb 05, 2013 3:29 am
 - Location: Westbrook, Maine
 
Boost gauge line location
Same place as mine is. Just ran a hose into the car and mounted it in the center vents.