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Thread: 1jz Thermostat same as Startlet? Operating temp???

  1. #16
    Junior Member Grease Monkey cressida_1jz's Avatar
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    Default Re: 1jz Thermostat same as Startlet? Operating temp???

    Quote Originally Posted by 1JZ~lux
    The after market one has a smaller openning then the standard one. In therory, if the TRD one is the same size as the standard one it would cool better because of less restiction (better flow).
    Best way of testing that is to put both thermostat in boiling water on the stove and see how much they open.
    1997 JZX100 Chaser Tourer V
    1991 Cressida Grande 1JZ-GTE *sold*

  2. #17
    Junior Member Backyard Mechanic
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    Default Re: 1jz Thermostat same as Startlet? Operating temp???

    Quote Originally Posted by rogue-vl
    thanks 1Jz-Lux thats what I was thinking, so with the temperature range my engine is running at is there a problem or is it within normal operating range?
    98° is getting a little high but fine. When you get to 105° then you have to worry.
    www.usell4me.com.au - We buy and sell cars for private clients
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  3. #18
    Junior Member Backyard Mechanic
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    Default Re: 1jz Thermostat same as Startlet? Operating temp???

    From memory i threw a 2jzge thermostat in my 1j and it works fine
    82deg op i think and it never runs over 100deg

    The starlet one at 92deg op sounds a bit high to me

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