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Thread: Thermal Wrapping/Thermal Shielding of Exhaust

  1. #1
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    Thermal Wrapping/Thermal Shielding of Exhaust

    Hi All,

    Before we set off on our Vic High Country trip this Christmas I want to do something about the heat from the exhaust which manifests itself by making the ExBox and Trans Tunnel quite hot. NOTE: I do have a layer of woven heat shield under the ExBox which in hindsight isn't doing much.

    The way I see it I have two options;

    1) Direct wrap the exhaust under and a few hundred mm before and after the ExBox location, or,
    https://www.autobarn.com.au/heatshield-black-2-inch-x-25-foot-products-exhaust-wrap-322025b


    2) Install a heat shield which is spaced off the pipe over the exhaust under the ExBox.
    https://drivingsafety.ga/car-covers/heat-shield-car-part/


    I'm guessing option 1 will be quicker and cheaper whereas option 2 more expensive and more effective.

    Any tips/photos.

    Cheers,

    Andrew

  2. #2
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    I have mine wrapped from the start of the exhaust to just past the transfercase. I had fitted a flexible joint so I don't wrap that as it is stainless.

    if your pipes are in good condition to start with you'll have no problems, in my experience, despite what the naysayers claim.
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  3. #3
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    Same here, wrapped from just below the turbo through to the high flow muffler (no cat) and yes it makes a big difference to passenger floor temps.

    Also a couple of sheets of 10mm closed cell foam between the transmission and transmission tunnel, another big difference.

    Also extra insulation between factory floor mat and floor.

    All up the passenger and drivers side footwells hardly gets warm now regardless of outside temps, and actually gives the crappy aircon in the Td5 a chance...

    And the noise reduction is a bonus!

    Paul.
    Paul.

    77 series3 (sold)
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    I thought I was wrong once, but I was mistaken.

  4. #4
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    On a 2.2lt you get good heat reduction by deleting cat and exhaust wrapping from, as mentioned start of exhaust to the exhaust joint just past transfer case.
    Regards
    Daz


  5. #5
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    Here’s what I did:
    Alasdair, the MY16 Keswick 110

    I’ve also added a fair bit of insulation inside the cabin, on the floor and seatbox, which you’ll find further along in the thread. (It’s time for serious updates to that thread, I no longer recognise it.)

    I’m not convinced a separate heat shield will be of any value in that area due to the shape of the transmission tunnel. The flat back on it creates a dead airspace which I think will cause the air in the tunnel to just heat up. It may slow the process down but after a couple of hours on the road I don’t think you’d notice a difference.

    The most effective solution would be insulation on the outside of the body, but it’s too complicated for me to bother attempting it.

    Cheers,
    Jon

  6. #6
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    I'll add my voice to the wrapping chorus, mine's been on there since about 3 weeks after I picked it up new and the wrap makes a significant difference to cabin temperatures. (2.2 Puma)

    Regards,
    Tote
    Go home, your igloo is on fire....
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  7. #7
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    I wrapped my Puma 2.4s exhaust from as far as I could get it up to the manifold and through to the first silencer. Seemed to work well as the floor never got hot and the cab was a reasonable temp. even during the hottest days.
    I treated it as just another of those things we do like window tint to make journeys more comfortable for the Cook......
    AlanH.

  8. #8
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    Ditto for the wrapping. Mine is from manifold to end of transfer case. It makes a significant difference.

    Cheers

    RF

  9. #9
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    Quote Originally Posted by jon3950 View Post
    Here’s what I did:
    Alasdair, the MY16 Keswick 110

    I’ve also added a fair bit of insulation inside the cabin, on the floor and seatbox, which you’ll find further along in the thread. (It’s time for serious updates to that thread, I no longer recognise it.)

    I’m not convinced a separate heat shield will be of any value in that area due to the shape of the transmission tunnel. The flat back on it creates a dead airspace which I think will cause the air in the tunnel to just heat up. It may slow the process down but after a couple of hours on the road I don’t think you’d notice a difference.

    The most effective solution would be insulation on the outside of the body, but it’s too complicated for me to bother attempting it.

    Cheers,
    Jon
    Hi Jon

    Just read your earlier thread. Sounds like a great plan. Do you recall the dimensions of the magma wrap? Was it 2" wide? And what length? Would 5 meters be more than enough for 110?

    Cheers - Simon
    Cheers
    Travelrover

    Adventure before Dementia

    2012 Puma 90 - Black
    1999 Td5 110 Ute - White
    1996 Tdi 300 Wagon - White

  10. #10
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    I was in town yesterday getting some 8mm studs for my new turbo manifold and asked the exhaust guy about this. he did not recommend it as it traps moisture and promotes rust. I said I had stainless and he said thats worse as the heat buildup makes the stainless prone to cracking.
    So maybe I will make a heat shield and more underfloor insulation.

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