Some of my vac lines are collapsing! I have a vac manifold and two of the silicone vac lines that connects to the MAP sensor and BOV seems to be collapsing from the high heat! I tried two different types and they both collapsed and I'm having some boost issues that could be caused by this

What kind of vac lines do u peeps use thatare more heat resistant and will not collapse?

 

sounds like the lines you have arent too great. I have some lines run close to my manifold without any issues. I just got them from a local auto parts store.

 

^true that. my lines held steady even next to my manifold.

 

silicone lines are not that great

http://www.beyondthedyno.com/Blogs/Eric/?p=1401

 

I use 3/16 fuel line, it has some structual integrity esp since those lines get hot.

 

get these


race parts solutions sells them

 

The OEM vacuum lines can take 22 psi all day long. Just add a small zip tie to hold them on.

 

What kinda lines are these? THey look like vinyl.

In my previous turbo project I used the same lines without any issues but on my S for some reason they all turn like jelly lol

 

The lines are made from nylon, I havent had one issue with them the fittings sit so snug nothing leaks,


http://www.racepartssolutions.com/products.asp?cat=103

 

I'm gaving the same problems with my silicone lines. They are fine in the straight runs, but with sharper bends, like the one coming off of the FPR seem to collapse. What problems could arise if that tube collapses?