I don't think this has been asked before but, where are you guys tapping most of your vacuum lines in at on your intake manifold. I have about 4 things i need to tap into (boost gauge, profec boost sensor, bov, vortech fmu). I had all of them tapped into the same line the one going to the stock fuel pressure manegement. If your looking at the manifold, it's the three lines coming off the manifold on the left. The furthest on the left pressure line. I realized that i had big variances on my gauges and my bov doesn't sound unless i hit hard boost.

I'm checking my chiltons for more vacuum lines, but i wasn't sure which one to tap.

You thought wrong...been asked many times!!! Haha, lucky for you I'm in a good mood, that's usually the only way you'll get answers without being told to search lol. Use the big fat line on the right, that's your brake booster vacuum source. That should get you started :thumbsup

Or you could just drill and tap new hole like I did. You can get fittings at a hardware store. Its not hard, you just cant do it with the intake on the car.

On my car, the line on the left was for the evap. You can
actually use all three lines and have many different setups. I
moved the cruise control over to the evap line and gave the
FMU a dedicated line. This is how I had mine set up, hope it
helps.


   Evap/             Fmu    Boost gauge/      BOV/
   Cruise control           EGR/Wastegate     Brake Booster
   
                \     |     /                   |
                 \    |    /                    |
                  \   |   /                     |

You can split the vac line into more than one using an adapter
too right? or am I an idiot?

Originally posted by pr0
You can split the vac line into more than one using an adapter too right?

You can buy tee's in various sizes & configurations at any autoparts store.

OR disconnect your PCV, put a filter on the end and use that barb

You guys are so cool, thanks for not telling me to search. I've been searching all week for different things on this site.

Anyways, I thought about tapping my manifold, but I wasn't planning on taking it off yet for about another week to clean it and do the egr mod. I was a little hesitant in tapping the brake pressure line, cause i don't wanna screw with my brakes, they already suck!

I'm gonna move shit around when I take my manifold off and put in new injectors. I like all of your ideas so far.
In the meantime yesterday I moved one of the lines, out of a lack of resources of more splices. I still have too many things on one line, but it will soon be fixed. I did what corbin recommended in an old section on the greddy type s and took one of the springs out of my bov for the time being. It sounds perfectly now, but I'm sure before anyone says it, it's probably leaking boost now because without both of the springs in there it has less resistance to pressure.