The AUSubaru.com.au Forums

G'day folks,

New member, joined yesterday. Vic from Liverpool NSW, age 33, drive a 99 sti coupe-wanted to say hi.

I also have a boost gauge installation question, im looking for the vacuum/boost line/hose on the intake manifold. There are 3 hoses on top of the manifold, 1 towards the left/2 towards the right-can someone pls.clarify which is which?

Any assistance will be highly appreciated, cheers Vic.

Vic,

Pull one off at a time until you create a vacuum leak at idle, you can then tee into that line.

There are many other hoses you can tee into, just stay on the above theory.

If you're keen, you could even tee into the brake booster line, although the fittings end up bulky.

Thanks for getting back to me Gary, very much appreciated.

Cheers, Vic.

All 3 of the lines from the top of the manifold are connected to the same place in the manifold plenum.So you could hook into any one of them, but id recommend against hooking into the middle one (pressure sensor and boost control) If your boost gauge developed a leak, you could possibly have erratic boost control.

Its probably easiest to T off the blow off valve hose (drivers side), but either of the outer ones will be fine

Thanking you Gannon, very much appreciated.
I'll be giving it a go tomorrow, let everyone know how I went.
Cheers Vic.

Current ride: 99 sti coupe (Daily driver)
Past ride: 02 rex (bug eye)

P.S. I just realized that I might need help lighting it up, any suggestions on the best/easiest power source?, im thinking cigarette lighter or the fuse box.

Depends where you are mounting it. If it is an A pillar mounted cup, its probably easier to grab an illumination feed from one of the switches to the right of the steering wheel. At a guess they might be fog lights, IC water spray or cruise control.

Thanks Gannon, I'll give that a go-let you know how I went.
Tks once again, cheers Vic.

Thanks Guys, boost gauge installation went great.
Very much appreciated, cheers Vic.