do I really need this on the throttle body..

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • bangn
    Mod Crazy
    • Sep 2011
    • 760

    #1

    do I really need this on the throttle body..



    im building a turbo M20, and this is badly corroded on my M20b25.
    I suspect its just to aid with cold starts in the snowy parts of the world, doesnt have a wax element inside, it just goes in and out and heats up the throttlebody.

    question is.. having this on a turbo vehicle where the desired intake temps are as low as possible, could this have a negative effect on performance, I was going to get a new one but not sure if its worth it. Otherwise I will just plate it off so it looks neat.

    I live in Australia, aka the center of the sun.
    Boris - 89 E30 325i
    84- E30 323i
  • E30-325iS
    Advanced Member
    • Sep 2011
    • 191

    #2
    Its not going to make any difference to your intake temps or performance. You can just bypass it with a length of hose. There is no wax in there, its just for coolant to circulate around.
    I think its there to stop the throttle body from icing up under certain conditions.

    Comment

    • TheTacoMan
      R3VLimited
      • Nov 2011
      • 2308

      #3
      Originally posted by E30-325iS
      Its not going to make any difference to your intake temps or performance. You can just bypass it with a length of hose. There is no wax in there, its just for coolant to circulate around.
      I think its there to stop the throttle body from icing up under certain conditions.
      Thats correct, I looped mine and its fine.

      Comment

      • acolella76
        R3VLimited
        • Apr 2010
        • 2950

        #4
        It's a throttle body heater. I bypassed mine a while ago and never noticed a difference. Though, this past winter my throttle did get stuck open once or twice. Nothing a firm kick won't fix.
        -Alex

        Comment

        • MR 325
          Moderator
          • Oct 2003
          • 37825

          #5
          Mine is bypassed.
          BimmerHeads
          Classic BMW Specialists
          Santa Clarita, CA

          www.BimmerHeads.com

          Comment

          • crazyman
            Mod Crazy
            • Dec 2010
            • 738

            #6
            Originally posted by acolella76
            It's a throttle body heater. I bypassed mine a while ago and never noticed a difference. Though, this past winter my throttle did get stuck open once or twice. Nothing a firm kick won't fix.
            I think you have bigger problems there sir.
            sigpic
            85 swartz/metallic 325E
            84 alpine 325E
            85 zinnoberot 318i/R.I.P
            84 Bronzit 318i/sold
            purchase feed back here=http://www.r3vlimited.com/board/show...82#post3535282

            Comment

            • Exodus_2pt0
              R3V Elite
              • Dec 2011
              • 5943

              #7
              Bypassed on every car I own that came equipped.

              It is counterproductive to good performance.
              No E30 Club
              Originally posted by MrBurgundy
              Anyways, mustangs are gay and mini vans are faster than your car, you just have to deal with that.

              Comment

              • StinkE30
                Advanced Member
                • Dec 2011
                • 155

                #8
                *cough over-engineering cough*

                Comment

                • ADlBOO
                  Grease Monkey
                  • Jan 2012
                  • 335

                  #9
                  Probably a left over design from when they still made plane engines. :hitler: Most cars have them now a days though. Not gonna notice a difference if you remove or bypass it though.
                  I have friends who are EOD bro.

                  That's awesome. I have friends who make coffee for a living, but you don't see me rocking out a bunch of lattes

                  Comment

                  • peytonracer4
                    E30 Addict
                    • May 2011
                    • 524

                    #10
                    you can bypass it. as someone said, it's entirely possible to have your butterfly valve freeze open in very very cold and wet conditions but it's unlikely.


                    Comment

                    • Cabriolet
                      R3V OG
                      • Apr 2010
                      • 9620

                      #11
                      if it get's below 20F you need it. otherwise it's just over designed.
                      Much wow
                      I hate 4 doors

                      Comment

                      • eLKuRLy
                        Grease Monkey
                        • Oct 2007
                        • 360

                        #12
                        Anybody with pictures of bypass?

                        Comment

                        • E30-325iS
                          Advanced Member
                          • Sep 2011
                          • 191

                          #13
                          Just run a hose from under the thermostat to the back of the block.

                          Comment

                          • Exodus_2pt0
                            R3V Elite
                            • Dec 2011
                            • 5943

                            #14
                            Or you can take a double sided nipple fitting, remove the hoses from the throttle body and connect them to each other.
                            No E30 Club
                            Originally posted by MrBurgundy
                            Anyways, mustangs are gay and mini vans are faster than your car, you just have to deal with that.

                            Comment

                            • E30_fiend
                              R3V OG
                              • Apr 2006
                              • 7348

                              #15
                              bypassed mine as well. ZERO issues
                              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

                              Working...