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Thread: Mfi temp.

  1. 07-08-2017, 04:46 PM #1
    NZVW
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    Mfi temp.

    Is there a minimal ambient air temperature at cold start up that requires you to MUST have the thermostat heater working ?
    I am at sea level and a min temp of 50F
    Thanks in advance
    Mark
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  2. 07-08-2017, 06:29 PM #2
    RSTarga
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    Are you speaking of the flapper valve on the air intake?
    David

    '73 S Targa #0830 2.7 MFI rebuilt to RS specs
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  3. 07-09-2017, 09:35 AM #3
    Flieger
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    you should be fine, have you tried it?

    I'm pretty sure I've started mine in temps like that and it takes a few starts but will get going pretty quickly. I've got a button on the dash for the cold start squirters though.
    1971 911S, 2.7RS spec MFI engine, suspension mods, lightened
    Early 911S Registry Member #425
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  4. 07-09-2017, 11:12 AM #4
    gled49
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    45 degrees C thermotime switch for cold start works up to 113 degrees.
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  5. 07-25-2017, 09:54 AM #5
    cmcfaul
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    My experience is to keep all that stuff attached. It will work without it but was designed by smart people to be there.

    Chris
    73E
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  6. 07-25-2017, 10:08 AM #6
    edmayo
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    As per the correct previous answers,,,, keep everything intact as designed, as to your question, keep the hot air hose to the thermostat, that is to lean out mixture as engine warms up.
    Early S Registry member #90
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    Fort Worth Tx.
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  7. 07-25-2017, 10:18 AM #7
    NZVW
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    Thank you all.
    I have kept it all stock and it is working perfectly now.
    Mark
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