10r80 for track use. Cooler and THERMOSTAT

Discussion in 'Transmission & Drivetrain' started by Flyhalf, May 20, 2019.

  1. Flyhalf

    Flyhalf Well-Known Member

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    #1 Flyhalf, May 20, 2019
    Last edited: May 20, 2019
    1min read
    Good morning all
    I roadcourse my 10speed
    After having hesitation for months at 240 (i have done another post recently)
    Situation dropped and i started to have issue around 225 .
    With eventually seared clutches and the dealership swapped the trans .
    Installing now a bigger cooler (see pictures)
    However i read somewhere 10r80 has a thermostat that opens around 200f.
    I also found it out with the new cooler cause it wasn't warm till 200f then suddenly fluid came in .
    QUESTION
    DO YOU KNOW IF THE THERMOSTAT IS MECHANICAL OR ELETTRONIC?

    I want to understand if there is a chance to tune the opening.
    Please let me know!
    Alex 20190518_205228.jpg IMG_20190519_141639_638.jpg 20190519_091715.jpg IMG_20190517_073536_306.jpg
     
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  2. Cobra Jet

    Cobra Jet Well-Known Member

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    Is there room to install a 7” or 8” electric pusher fan? That is going to give you even better results if you can mount it directly onto the new trans cooler.

    SPAL makes excellent compact fans and you can get their fan controllers - set the controller to the desired on/off temps.
     
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    Flyhalf

    Flyhalf Well-Known Member

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    #3 Flyhalf, May 21, 2019
    Last edited: May 22, 2019
    The cooler is very close to the AC condenser .Technically i could move it more anteriorly to have the space needed for putting a fan .
    But in my opinion this is not necessary for 2 reasons
    1. Fan works at lower speed where we dont overheat especially now that I have direct air flow (is in front of everything .)
    2 .The radiator fans when activated produced a good amount of air flow .anyway .

    In most of race car they dont even put fan cause fan can stop air flows .

    My main issue is keaking from one tube now ...
    Trying to fix it
    Thanks for the input!
     
  4. TuxedoPC

    TuxedoPC Well-Known Member

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    What transmission cooler kit did you use and what did you do about the thermostat situation.
     
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    Flyhalf

    Flyhalf Well-Known Member

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    Setrab 25row.
    I also ducted all the coolers and radiator.
    Last
    I ve created a waterspray system composed by 5 nozzle. 2 on radiator 1 on trans cooler (see pic) 2 on the oil cooler.
    Ducting/sealing reduced a lot the temps.
    And with Spraying .. So far no more problems.
    212f max on trans temp
    260f oil
    220f CHT

    Thermostat. Itnis a bodyvalve. Inknownsomeone in arizona replaced the bodyvalve of the 6r80 with like a plus tonhave continous flow to the cooler. Unfortunately I'm not from there so i cant bring myncar there. I still believe this will definetely nfix all the issues.
    But sonfar my solution works. Very very well 20191008_105606.jpg 20191008_105555_HDR.jpg
     
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    Flyhalf

    Flyhalf Well-Known Member

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  7. TuxedoPC

    TuxedoPC Well-Known Member

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    Great Info, Is 212 safe for track use? I want the transmission to last for a while since it will be a mixed use vehicle with track and regular daily use.
     
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    Flyhalf

    Flyhalf Well-Known Member

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    Im general
    The cooler the better
    That is why I was thinking to remove the bobyvalve.
    But 212 f is absolutely fine. My problem came around 245f. And then progressed to a lower temp.
    If younput an oil cooler don't put it on the higher grille. Otherwose you block air flow to the trans cooler
     
  9. Zinc03svt

    Zinc03svt Well-Known Member

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    Wow!!! Mine takes like 25 minutes just to get up to 140-150 degrees. Even after a few pulls.
     
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    Flyhalf

    Flyhalf Well-Known Member

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    One pull is 10sec... Not enough.
    Roadcourse is 5 session of 20-25mins higher than 6000rpm. :)
     
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