I have a 92 sc300 with jdm 2jzgte FMIC and full exhaust.
Running on jdm twins.

I have a profec b spec II and aem boost gauge that i need to install.

My question is, how and where do I route the vacuum lines for the boost gauge and boost controller?

I did a few searches on CL and supraforums but I'm still a bit confused as to what i SHOULD do and SHOULDN'T do.

Any info / links would be appreciated.

Thanks,
Omar

i would suspect you connect it to the intake pipe before the throttle body as that would show actual pressure entering the intake

http://www.soarerworld.com/forum/sho...35&postcount=3

remember, the lines from WG to WG should be equal length, as well as the line from the compressors.

You want your boost gauge to read pressure and vacuum in the manifold (not the charge pipe), so basically T into any small line coming directly off the intake manifold (there are plenty to choose from).

i had it written out to say the manifold first but changed it because i thought you would want to know what the pressure is at when the throttle is closed and boost is still being produced. but thank you for clearing that up. never had a turbo car so your guidance is appreciated

I searched online and some say to T into the FPR vacuum line while others say not to do so. Also on
http://mkiv.com/techarticles/boostguage/bg.htm it shows to T into the boost pressure sensor vacuum line for the boost gauge. So I just want to make sure which vacuum line I SHOULD T into.

Luv2xl - Thanks for the link, that cleared things up.

^ no problem.. I backed off the boost controller setup due to tight places and big hands.. Hope you have better luck than me..

I never T into the boost pressure sensor, I always leave pressure sensor directly connected to the manifold.
you can T off the fuel pressure regulator, that is fine, make sure the connection is secure.
Also there are tons of vac lines for less important things, like the ones that go to the vsv for the charcoal canister.
you want to catch these lines at the manifold though before any vsv's or stuff like that so you get the full signal.

Ok thanks!... Anyone else would like to chime in??

These are some links that Eliteskill sent me:

http://www.97supraturbo.com/FAQ.html

http://97supraturbo.com/Tech%20Stuff...%20routing.jpg

http://97supraturbo.com/Tech%20Stuff...Vac%20conn.jpg

Anyone else have any more info?

Just before the throttle body is your best bet.