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Thread: SC HD engine normal temperature range.

  1. #1
    "Shadow the Hedgehog"
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    SC HD engine normal temperature range.

    Guys, I am trying to find out, but it's a lot of threads to cover, so your help is needed, if you have the right numbers, please post it up and I will add and stick this thread.

    I would like to know the right numbers under normal conditions for a SC HD (read stock thermostat,stock alternator,stock fuel pump,etc) for the following :

    Engine water temperature -
    Normal driving................ 185*

    Engine oil temperature - ?

    Engine oil pressure -
    Cold start up................... + - 85*
    Operation temp at idle..... + - 27*
    Normal driving................ ?
    WOT............................... + - 85*


    IC water temperature -
    More than ambient temp.. + - 20*

    Tranny temperature -
    No load........................... + - 140* to 180*
    Towing............................ + - 180*

    Differential oil temperature - ?

    Volts -
    13.8

    A/F Ratio -
    Normal driving.................. 11.6
    WOT "NO MORE THAN"...... 12.0
    (Low # = Rich)
    (High # = Lean)

    IAT - ?

    IAT 2 - 130* (warmed up)

    Fuel pressure -
    At idle............................... + - 32
    At WOT.............................. + - 55






    PS- if I forgot something you may think is important, post it up too
    Last edited by Hoffmann; 05-19-2008 at 06:54 PM.

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    Engine water temperature - 185

    Engine oil temperature - ?

    Engine oil pressure - ?

    IC water temperature - ?

    Tranny temperature - 160

    Differential oil temperature - ?

    Volts - 13.8

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    Engine water temperature - 185

    Engine oil temperature - ?

    Engine oil pressure - 27 at operation temp at idle, 85ish at WOT. Cold start up 85ish .

    IC water temperature - I hear 20 over outside air time. I see 40 over?

    Tranny temperature - 160

    Differential oil temperature - ?

    Volts - 13.8
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    Nice guys, keep them coming

    I will edit with your info right now, and Z7... your water temp show now around 170* because you have the electric fan correct?

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    Thumbs up Good Post

    All i know is trans normal(When towing or hot) u can see 180 over 200 is going into problems.


    I would like to know normal AF + IAT readings and what are good reading to keep an eye on for perfomance wise.

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    Thank's HD#7264, I will add the AF and IAT there

    BTW- you didn't upgrade to a tranny coller right?

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    Quote Originally Posted by Hoffmann View Post
    Thank's HD#7264, I will add the AF and IAT there

    BTW- you didn't upgrade to a tranny coller right?
    I have the towing package cooler that comes from ford.

    Another reading good to know(performance wise)Fuel pressure reading.

  8. #8
    Fast with Class
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    contact Tim Skelton.

    He has done alot of research on this info.

    T

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    Engine water temperature
    between the H and L
    Anthony

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    You want your A/F around 11.6 or so nothing higher than 12.0 at WOT on a street tune.

    I see around 165-175 what temp. I am running a 170 Tstat and EFans.

    Fuel Pressure should be around 32 at idle and 55ish at WOT give or take a few.

    As the IAT thats what i was talking about when you asked for intake water temp. My IAT2 is about 40* higher than what outside temps are. Most people see a 20* difference.

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    fixed, thank's

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    Iat is normally +15-20 over ambient temp. IAT2 120-130 normal drive

  13. #13
    World's Fastest Street HD
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    may want to bump that temp up from 180 to 185, thats where most of them run around.

    also add in IAT2 temp. fully warmed up with stock heat exchanger, stock IC tank, etc. mine consistently ran at 130* fully warmed up. anything 150+ it starts to pull timing, but on a fully warmed engine, its usually right around 130*.

    trans temp varys greatly depending on ambient temperature. anything from 140* in the winter to 180* in the summer is "normal", and anything 200+ is danger zone.

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    "Shadow the Hedgehog"
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    Nice guys, a few more,

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    OK Differential temperature 200 to 240 is normal operating range anything over 255 to 260 is going towards problems

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