PTU thermal protection

Discussion in 'Generation 4 - Maintenance & Troubleshooting' started by Jus2quik, Mar 12, 2019.

  1. Jus2quik

    Jus2quik New Member

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    6FBAB36C-6995-4C27-8577-FBE57F9591F7.jpeg With the high heat these PTU units see under the car and wedges between the cats ,I’m going to shield mine from the excess heat with this material I have ,I’ve used it around Subaru turbos. Ive also used this same material with hot RV generators around the carb and intake and in between the pan and exhaust pipe,The heat soaks the intake and the fuel literally boils in the carbs when running them in the hot summer months causing them to get vapor locked and stop running ,since I added the bet shield mine works like a charm and I can see how this would defiantly keep the PTU cooler by also shielding it from this high heat .Ill report back after I wrap and shield the PTU.
     
  2. stevelaw_2000

    stevelaw_2000 Member

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    I kind of thought it would be easier to just wrap the downpipe and cats rather than the ptu. And they make wrap just for that too!

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  3. '14SHO

    '14SHO SHO Member

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    And I wonder if wrapping the PTU will also hold the heat that the PTU generates in
     
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  4. stevelaw_2000

    stevelaw_2000 Member

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    Good point

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  5. krewat

    krewat SHO Member

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    And yes, I'm here from the facebook group - the radiant heat from the PTU will be held in by the wrap. Whether or not that's a concern I have no clue ;)
     
  6. Jus2quik

    Jus2quik New Member

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    The heat outside the PTU is greater than what the gears are producing by a long shot ,heat doesn’t have anywhere to go anyway but in the direction of more heat from the exhaust .
     
  7. Jus2quik

    Jus2quik New Member

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    I’m
    Shooting for a barrier “in between” the exhaust and the PTU like a heat shield of sorts not a direct contact blanket like some turbo blankets
     
  8. glockcoma

    glockcoma SHO Member

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    I used a reflective barrier on the ptu when I changed mine last year.
    It’s still on even with NE Ohio’s crazy weather.
    Also wrapped my DP.
    [​IMG][​IMG]
    [​IMG]
    [​IMG]
     
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  9. Jus2quik

    Jus2quik New Member

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    Nice ,have you changed the oil since putting the heat barrier on ?
     
  10. glockcoma

    glockcoma SHO Member

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    Not yet only have about 1000 miles on it since 4/17. I plan on installing drain plug when I do change it.
     
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  11. SHOdded

    SHOdded SHO Member Supporting Member

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    May be a good time to add in a temp sensor. Probably have to be hardwired tho, dunno if a wireless one would survive for long.
     
  12. SM105K

    SM105K Land Yacht Pilot Supporting Member

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    Wrap the down pipes and call it a day.
     
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  13. Conquest351

    Conquest351 Member

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    How are you going to install a drain plug? I want to do that to mine.
     
  14. glockcoma

    glockcoma SHO Member

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    [​IMG]
    [​IMG]
    [​IMG]
    The measurements are not mine I pulled that pic off the edge forum.
    But I do have my old ptu to practice on.
     
  15. Jus2quik

    Jus2quik New Member

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    I’d like to do that someday ,I’m big on maintenance and making it easier
     
  16. stevelaw_2000

    stevelaw_2000 Member

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    Great info, thank you for passing this on.

    Sent from my SM-N950U using Tapatalk
     
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