Vacuum check valve delete

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Zues
    Advanced Member
    • Feb 2009
    • 145

    #1

    Vacuum check valve delete

    So ive removed the old intake boot and replaced it with a 90 degree turbo coupler and i was wondering if there was any way to get rid of the vacuum inlet for the brake booster. Ive heard of people using 3 way check valves and such but nobody has really gone throght what to get and how to do it.
    90 m20is
  • lennon
    E30 Fanatic
    • Jun 2008
    • 1416

    #2
    fucking get the correct intake boot idiot. what is it like 20 dollars brand new? you could easily get one at the junkyard for 5.

    Comment

    • delphini
      Mod Crazy
      • Apr 2006
      • 680

      #3
      keep your eyes on the for sale threads
      :pimp:

      Comment

      • Zues
        Advanced Member
        • Feb 2009
        • 145

        #4
        Lennon, eat a dick and get off my thread if your not going to help me. I could easily adapt the check valve into the silicone coupler, but id rather get rid of it.
        90 m20is

        Comment

        • jlevie
          R3V OG
          • Nov 2006
          • 13530

          #5
          I figure that BMW had a good reason to have that line running to the boot. Best to retain it.
          The car makes it possible, but the driver makes it happen.
          Jim Levie, Huntsville, AL

          Comment

          • Zues
            Advanced Member
            • Feb 2009
            • 145

            #6
            Not all of them have the line going into the intake. I was looking through the engine bay thread and there are a couple eta's that just go from the throttle body to the booster. And this is what im curious about. Ill post the pics around 9 tonight.
            Attached Files
            Last edited by Zues; 09-19-2009, 08:17 PM.
            90 m20is

            Comment

            • E30_fiend
              R3V OG
              • Apr 2006
              • 7348

              #7
              Originally posted by Zues
              Not all of them have the line going into the intake. I was looking through the engine bay thread and there are a couple eta's that just go from the throttle body to the booster. And this is what im curious about. Ill post the pics around 9 tonight.
              that motor isnt an ETA unless its a 2.7i. And what are you trying to do? MAybe if you let us know that, someone could give you some advice. if you are looking to route the vacuum line as shown in your pictures, then do so. There is no advantage having it either way. And other than your ECU throwing a CEL, you can run without that ICV no problem. The cold starts with be difficult but after 2 or 3 minutes it will idle just fine.






              Taylor
              Need a performance chip for you BMW? Shoot me a PM and I'll get you taken care of!!
              Taylor- Follow me on Instagram @e30_fiend


              Comment

              • Zues
                Advanced Member
                • Feb 2009
                • 145

                #8
                Thank you, thats the answer i was looking for. Im trying to do just that. Eliminate another vacuum line going into the intake boot.
                90 m20is

                Comment

                • AndrewBird
                  The Mad Scientist
                  • Oct 2003
                  • 11892

                  #9
                  As long as there is a vacuum line going to the booster it doesn't matter where it comes from. The booster just needs vacuum to function. Just make sure you use a check valve.

                  Comment

                  • evil_twin
                    R3VLimited
                    • Nov 2007
                    • 2965

                    #10
                    I dont think he's talking about the brake booster. It wouldnt be the smartest thing running non-power assist brakes.
                    I got a fender roller now! LMK if you need me to roll your fenders or want to rent the tool from me locally.

                    Paypal: vdang5@gmail.com

                    Delta Auto Care
                    2875-C Towerview Road
                    Herndon, VA
                    703.435.1375

                    My Feedback Thread: Evil_Twin

                    Comment

                    • Z3Jonathan
                      Wrencher
                      • Oct 2003
                      • 289

                      #11
                      The check valve is there for a reason. It keeps the vacuum in your booster in the case of low engine vacuum. IMO, keep it.

                      Comment

                      • Zues
                        Advanced Member
                        • Feb 2009
                        • 145

                        #12
                        Right on guys. So should i plug up a hole on the throttle body or find a way to tie them both into one with a check valve.
                        90 m20is

                        Comment

                        • txtorquemade
                          E30 Mastermind
                          • Mar 2009
                          • 1758

                          #13
                          What is the point to your omitting a vacuum line that BMW has installed for a reason?

                          Is there a purpose?
                          sigpic 1987 325is

                          Comment

                          Working...