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308 plumbing question

Discussion in '308/328' started by bitsobrits, Oct 11, 2022.

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  1. bitsobrits

    bitsobrits Formula Junior
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    #1 bitsobrits, Oct 11, 2022
    I’m curious to know why the Factory chose to run a separate hot water circuit to the front of the car instead of just tapping off of the main hot coolant pipe at the front? Why not reduce hassle/complexity and save a few pounds? Surly the temperature of the two possible sources must be about the same?
     
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  2. Rifledriver

    Rifledriver Three Time F1 World Champ

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    #2 Rifledriver, Oct 11, 2022
    I am curious to know why they did a lot of things. Water for the heater is pretty low on the list.
     
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  3. smg2

    smg2 F1 World Champ
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    #3 smg2, Oct 11, 2022
    It's a simple answer though. The circuit is closed until the engine is up to temp. So the heater would not function until the T'stat opens. The return line is up front though.
    Feeding right from the cylinder head means less wait time.
     
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  4. Jonny Law

    Jonny Law F1 Rookie
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    #4 Jonny Law, Oct 11, 2022
    I have considered re-designing the system to eliminate the second line, but smg2 has a good point. Not sure the wait time is a problem.
     
  5. smg2

    smg2 F1 World Champ
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    #5 smg2, Oct 11, 2022
    The other issue is that 'feed' line to the rad only flows when the stat opens... That'll make for odd flow into the heater cores.
     

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