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  •  » Heater core design

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    3/07/2021 9:23 AM  #1

    Nos681
    Senior 24-7 FYI Addict

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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,335

    Heater core design

    Assume a new heater core for any year Mustang.
    Assume aluminum or copper.
    Assume good quality too.
    Assume no pressure relief, for this experiment.

    What kind of pressure can it operate at before failure?

     

    3/07/2021 9:49 AM  #2

    red351
    I FYI 24-7

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    From: Carlisle, PA
    Registered: 5/31/2018
    Posts: 445

    Re: Heater core design

    I test mine around 25 psi to be sure. I know for sure they can't handle 120

     

    3/07/2021 12:45 PM  #3

    rpm
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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,660

    Re: Heater core design

    Since my radiator cap is 13 lbs I checked my heater core to 20 psi before installing it. Can I ask what prompted you to axe this question???

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    3/08/2021 7:14 PM  #4

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,260

    Re: Heater core design

    Bearing Bob wrote:

    Since my radiator cap is 13 lbs I checked my heater core to 20 psi before installing it. Can I ask what prompted you to axe this question???

     
    Probably has something to do with that 12’ of snow piled around the eaves of his shop for the last three months!!!   My mind would go mad with U.P. weather.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/08/2021 11:54 PM  #5

    Nos681
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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,335

    Re: Heater core design

    This was a mild winter. Can’t complain...this year.

    Never have seen what maximum pressure heater cores are rated.

    What is maximum pressure when QA testing....🤣

    I really think the aluminum made cores can withstand much higher pressures...like 200 psi or more.

    Last edited by Nos681 (3/09/2021 6:17 AM)

       •Thread Starter
     

    3/10/2021 9:17 PM  #6

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,260

    Re: Heater core design

    I would doubt anything close to 200 psi.  The thin walled, flat tubing would surely balloon out way before that pressure was reached.  IF that pressure could ever be achieved.  Hoses would go at under 100, I bet.

    The radiator pressure cap, at 13 psi, is the limiting device for the system.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/11/2021 10:58 PM  #7

    Nos681
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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
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    Re: Heater core design

    Think you’re right about the tubes Steve.

    Will scrap that idea.

    Last edited by Nos681 (3/11/2021 11:00 PM)

       •Thread Starter
     

    3/12/2021 7:22 AM  #8

    John Ha
    I FYI 24-7

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    From: Mitchell, SD
    Registered: 4/02/2013
    Posts: 932

    Re: Heater core design

    Nos681 wrote:

     Will scrap that idea.

    Curious to know what you were thinking of using it for - after cooler for your air compressor?

    Founding Member of the Perpetually Bewildered Society
     

    3/12/2021 5:32 PM  #9

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,260

    Re: Heater core design

    I am betting cooler for air lines to condense moisture from the lines?   Heck, just toss 50’ of hose out there under the snow bank.  Ice doesn’t count as moisture, right?

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/12/2021 8:57 PM  #10

    Nos681
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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,335

    Re: Heater core design

    Wrong on both accounts.

    A/C evaporator

    Last edited by Nos681 (3/12/2021 8:58 PM)

       •Thread Starter
     

    3/12/2021 9:34 PM  #11

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,260

    Re: Heater core design

    Bad idea,

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

     

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