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Thread: Got heatsoak...?

  1. #1
    Joe (Moderator) joecar's Avatar
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    Default Got heatsoak...?

    Look at this insane log on one of my trips to Palm Springs last week...

    Yes, that's a traffic jam on CA91 going into Riverside.
    Attached Files Attached Files

  2. #2
    R.I.P Shawn, 1956-2011 WeathermanShawn's Avatar
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    Wow, does that say 171F!

    Beats my record... I see you were running Closed-Loop on that trip. Probably a good choice.

    What was the ambient temperatures like? I take it over 100F?
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  3. #3
    Joe (Moderator) joecar's Avatar
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    Yes, 171°F...

    Ambient temp just before that (cruising along at 80mph) was 81°F;

    then, after the traffic jam freed up, ambient temp was 84°F, and then steadily kept rising to 97°F as I travelled further into the desert;

    this was at night, between 9pm and 11:30pm (it took that long to go the 100 miles).

  4. #4
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    I believe it.Thats why I just shake my head when people zero out the very important IAT correction table!!!!
    Heck I think I saw about 165 IAT's today.EEK this summer needs to go,its terrible!!

  5. #5
    Lifetime Member swingtan's Avatar
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    Hmmm.... try a Melbourne summer with traffic. It was 46.1'C in the shade in this log.

    High_IAT.efi<---- Click for the log

    Click image for larger version. 

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    Notice the the box with the rising arrow to the right of the temp readings, that says the temp was still rising.

    For those yet to embrace the decimal system....

    46.1'C = 115'F
    The log IAT got to 86'C or 186.8'F

    Simon.

  6. #6
    Joe (Moderator) joecar's Avatar
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    Wow, that's pretty hot.
    Last edited by joecar; August 12th, 2010 at 01:27 PM.

  7. #7
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    Yep, I re-scale the IAT modifier table when I tune P10s, people ask why I pull 8-10* of timing when their IATs go 115+ and I shake my head. To save your motors guys!! Duh! The P10 is as bad if not worse than my LS2 in the same truck for heatsoak. Throw a "CAI" into the mix = higher IATs.
    ~Erik~
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