I wanted to make sure this is where I tap before I cut anything. Do I tap the small hose I wrapped the plastic tube around? Thanks.

 

no thats the oveflow line for the brake fluid. when it heats up after overfilling that drains in to the ground instead of all over the inside of the trunk. that is also the line that you make sure and pinch closed when you power bleed your brakes. I think you hook it to the fat line going into the booster. i'll have to look myself since I am currently doing about the same thing

 

Thanks for the heads up. The fat line is the brake fluid.

 

Do you have the "T" from the boost gauge mfg? If not, you can save yourself some troble be Teeing in to the line down by the gas pedal that goes up to the firewall. You'll need some adapters to size it down to what you need. This is what I did when my "T" fitting broke.

 

There should be a vacuum hose going to the black booster. Pull the valve out of the booster & replace with the new one you got with the kit.

 

No... It didn't come with a T fitting. I would rather use the hose near the gas pedal. Is it the same size that's on the brake booster?

 

yes it is the same size you will need to go find a brass tee to connect that 1/4 inch line to the booster line.

 

Thanks guys I found the hose.

 

anyone know what size that vaccum line is behind the gas pedal?...looks big like 3/8"??

 

Bernard send me a PM if you need any silicone hose or where to find the "t" locally.

 

Drew, Thanks but got it all taking care of.

 

I'm really missing something here (could be my old age...remember I'm 54 and my brain cells aren't quite at sharp as many of yours undoubtedly are). I hear the words "boost", and I automatically think "turbo boost". So, reading this thread, the brake "boost" line has absolutely nothing to do with turbo air charge boost; rather, isn't the braking boost created by vacuum? And what's the purpose of knowing the level of boost (or vacuum, if you will) to your brakes?
Now, don't tell me that the brake force increases in a linear response to turbo boost, or I may just do a complete meltdown (it's been a long day at the salt mine).

 

The brake booster vacuum line is connected to the engine and as a result sees the vacuum and pressure changes created within the engine. Hence, you can read vacuum and boost pressure at the brake booster.

 

Mark, the engine, as it's running, is naturally aspirated and sucks in air, hence creating your vacuum. The brake booster is connected to this venting/vacuum system, which is where you get the vacuum booster assisting you in braking. The turbo engine is no exception to that, and in fact, when the turbo spools up, it eliminates the vacuum (sucking of air in by the engine) and starts to build positive pressure (boost). It is the same vacuum/boost line. When you are hard on the gas and turbo boost pressure is up, you are not most likely not stepping on the brake... when you release the gas to hit the brakes, the engine reverts back to vacuum or negative pressure rather quickly and drops all of it's boost pressure.

I hope I got that right.. if not, someone will blast me and correct me appropriately.

Hope that helps!

 

Ok this post is surely a joke?
1) Sunpro gauges? Yikes....
2) Tap into the brake resevoir line....speechlessssss

Yasin