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  • exhaust wrap?

    does anyone know if putting exhaust wrap on the header pipes will cause the engine temp to go up?

    p.s. thanks for the help on past threads I made. My 80sg is finally up and running. I had to keep going up in jet sizes because of the freeflow exhaust and intake pods.
    1980 xs11sg
    16600 miles, soon to be a lot more
    stock headers with free flow exhaust
    mikes xs pods
    #45 pilot jets
    #130 main jets on 2 & 3
    #125 main jets on 1 & 4

  • #2
    The makers of the exhaust wrap products claim that it helps keep the engine cooler and increases power by improving exhaust gas flow speed through "scavanging". The truth may or may not be close to their claims, and I can't imagine how could be, although I'm sure some who have tried it will claim it does work that way, if for no other reason than to justify the expense.
    What I have been told by those that do us the stuff is that it smells really bad when you first install it untill it dries, and if you get caught in the rain, it stinks all over again with the added benefit of the smell wafting up between your legs at the traffic light.
    I have read also that it can accellerate corrosion of the pipes, but have not heard this first hand from anyone.
    I will say it looks good though, especially if your pipes are in bad shape. However if you are going for a cosmetic fix for your pipes, consider VHT paint (header paint) available at most auto parts stores, in a choice of colors, and at a fraction of the cost. If it turns out you don't like the painted look, at least you have then pretreated the pipes against the alleged corrosion problem before wrapping them.
    '78 E "Stormbringer"

    Purrs like a kitten, roars like a lion, runs like a gazelle (being chased by a cheetah).

    pics http://s1209.photobucket.com/albums/...tormbringer45/

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    • #3
      It makes your pipes rust...and apparently smells like nasty wet dog when wet.
      Nathan
      KD9ARL

      μολὼν λαβέ

      1978 XS1100E
      K&N Filter
      #45 pilot Jet, #137.5 Main Jet
      OEM Exhaust
      ATK Fork Brace
      LED Dash lights
      Ammeter, Oil Pressure, Oil Temp, and Volt Meters

      Green Monster Coils
      SS Brake Lines
      Vision 550 Auto Tensioner

      In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

      Theodore Roosevelt

      Comment


      • #4
        thanks for the info guys. I think I will wait untill I have a extra set of headers before I wrap them.
        1980 xs11sg
        16600 miles, soon to be a lot more
        stock headers with free flow exhaust
        mikes xs pods
        #45 pilot jets
        #130 main jets on 2 & 3
        #125 main jets on 1 & 4

        Comment


        • #5
          Found some images made by a FLIR of wrapped/unwrapped exhaust headers/cyls of a guzzi....

          Cylinder temp was lower when wrapped, but headers were about twice as hot.

          http://wildguzzi.com/forum/index.php?topic=43400.0

          I wouldnt do it.
          If it doesn't have an engine, it's not a sport, it's only a game.
          (stole that one from I-dont-know-who)

          Comment


          • #6
            One thing that was noted in that link in the responses was that the pic was on 2 different cylinders so the head temp COULD be from slight tuning differences.

            It really depends on why you are looking at the wrap. Do your pipes look like crap and you want a super cheap looks fix, personally I would rather get some 2000 degree paint and clean and paint the pipes. If your looking for the heat scavenging effects, you are MUCH better off doing ceramic coating, plus it lasts forever and protects the pipes. If you are looking for thw wrapped pipe look, well then there is nothing else you can so. Just remember it is going to ruin your pipes due to rust and excess heat over time.

            Also, I beg you not to wrap a oem exhaust, or even oem headpipes, they are getting harder to find and I am sure someone would buy them from you/trade exhausts with you!
            Nathan
            KD9ARL

            μολὼν λαβέ

            1978 XS1100E
            K&N Filter
            #45 pilot Jet, #137.5 Main Jet
            OEM Exhaust
            ATK Fork Brace
            LED Dash lights
            Ammeter, Oil Pressure, Oil Temp, and Volt Meters

            Green Monster Coils
            SS Brake Lines
            Vision 550 Auto Tensioner

            In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

            Theodore Roosevelt

            Comment


            • #7
              Im just going to paint them for now. I will wait untill my shop is set up so i can make my own stainless headers to wrap. I know you might ask why wrap stainless. I just like the look. Im not going to wrap the oem headers because i dont want to destroy them. thanks for the advice.
              1980 xs11sg
              16600 miles, soon to be a lot more
              stock headers with free flow exhaust
              mikes xs pods
              #45 pilot jets
              #130 main jets on 2 & 3
              #125 main jets on 1 & 4

              Comment

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