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Heatshield FAIL - Look inside, DONT DO THIS

Discussion in 'A3/S3 Forum (8L Chassis)' started by badger5, Aug 28, 2011.

  1. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Aug 28, 2011]
    Okies...

    A car here which has some owner enthusiast diy work done to it, in prep for a bigger turbo being fitted/mapped here etc... Unfortunately, a poor choice of heat shielding material against the bulkhead, and OE heatshield removed, would have left the car as a fire hazard if it had been used and left there.

    Do not use Household sticky back foamed silver foil fronted heat reflective material for an automotive heatshield.. this material is what you would stick behind household radiators to reflect their heat off the walls.

    anyhows.. see below what happens when it gets hot vs some Actual Heatsheild materials like should be used in the engine bay..

    What not to use below


    Aluminised Fibreglass Cloth-aluminised burns off but fabric remains intact


    3 layer embossed aluminium/ceramic composite



    Use the Appropriate materials for your builds guys..
    Last edited by a moderator: Aug 15, 2014
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  3. Speedy Steve
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    Speedy Steve Active Member

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    [Aug 28, 2011]
    Lol next they'll be using tumble dryer ducting for air feeds
    #2
  4. S3 Sly
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    S3 Sly Member

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    [Aug 28, 2011]
    Is it just me that can see the face of a dog in the first pic?
    #3
  5. rhubarb4
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    rhubarb4 Certified Jardo Slayer

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    [Aug 28, 2011]
    no its clearly jesus lol
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  6. MUSH
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    MUSH MUSH Developments Ltd.

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    [Aug 28, 2011]
    Interesting!

    That ali/ceramic shielding is impressive!

    Im using triple layers of ali heatshielding from a specialised insulation company. The type of stuff they wrap turbines/jet engines and AMG turbos with.

    Ive got some sheets of the same design but in stainless and even titanium that the engineers reckon is even better aswell. Havnt tried that though.
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  7. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Aug 28, 2011]
    epic fail for using foam backed household insulation tho.

    it might be shiney surface but it could'nt be much worse for automotive heatshielding - scarey really.
    he removed the oe stuff to install this instead - eak/woops
    #6
  8. Lee172
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    Lee172 GT3071

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    [Aug 29, 2011]
    #7
  9. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Aug 29, 2011]
    Humm... although it is adverstised as exhaust heatshield it should also be noted that turbo applications are a little different to what this stuff suggests its for...

    Exhausts on a motorcycle are unlikely to see the sort of heat that a turbo application will... when the amount of heat generated is enough to make metal glow red or in some case white hot then you know something thats 'foam backed' isn't really gonna cut the mustard...

    I have used these people before and the products are good..
    Exhaust Wrap Shop
    ...even if thier website is ****e!... lol

    Advice is to do a little research and of course ask on the forum if you are still unsure...

    <tuffty/>
    #8
  10. DJ_Troopa
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    DJ_Troopa K1 Driver

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    [Aug 29, 2011]
    i LOL'd

    I'm not gonna lie though, i thought it was a face aswell!
    #9
  11. sportstractor
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    sportstractor Chugger

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    [Aug 30, 2011]
    Although direct flame is a slight exaggeration on the heat generated, as propane burns at nearly 2000 degrees, that is mad. That radiator foil can't even hack the temperatures behind a radiator, let alone a turbo! Madness
    #10
  12. DaveA3
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    DaveA3 Audi A-Trizzle!

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    [Aug 30, 2011]
    i know someone who actually did that. They spray it black first aswell
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  13. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Aug 30, 2011]
    extreme test - yes. but the proper materials copes admirably.. and when you run a k04 hard it is radiating some 900'C temps for quite some duration..
    #12
  14. Yohan87
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    Yohan87 Member

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    [Oct 13, 2012]
    Bill,

    Where can I get my hands on that 3 layer embossed aluminium/ceramic composite material?

    Cheers
    #13
  15. phil miller
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    phil miller Member

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    [Oct 13, 2012]
    +1 on that?
    #14
  16. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Oct 14, 2012]
    #15
  17. Yohan87
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    Yohan87 Member

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  18. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Oct 15, 2012]
    yep
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