Thread: thermostats

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  1. #1
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    thermostats

    I have been told to run the e tech thermostats instead of the ficht thermostats due to the temp difference,is there any difference and will they swap.If there is a difference which is better?Thanks in advance.
    99 Stratos 21SS 07 225 HO

  2. Member Danrude's Avatar
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    #2

    Re: thermostats (THERAKE)

    The shape of the thermostats are the same so you can just swap them. If you are going to change to the optional plugs ( QC10WEP ) then they need to be changed, the new plugs are hotter. I have made the change and it seems to perform better, they are designed to last longer. Hope I have answered your question.
    Dan Burnette - Marietta, GA
    Triton 18TRX - 200 HO G2

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    #3

    Re: thermostats (Danrude)

    so are the e tech thermostats cooler or hotter?If they are hotter what is the advantage other that the emm leaning out the fuel?
    99 Stratos 21SS 07 225 HO

  4. Member Danrude's Avatar
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    #4

    Re: thermostats (THERAKE)

    The E-Tec thermostats are hotter. I will have to let the Guru's speak to the reason they should be used in the DI's except to say the QC10WEP is a hotter plugs therefore if you switch to them then they will last longer with the hotter t'stats.
    Dan Burnette - Marietta, GA
    Triton 18TRX - 200 HO G2

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    #5

    Re: thermostats (Danrude)

    Danrude,
    I thought the whole issue with the older DI's was heat,and your saying we should run them hotter?
    I have been considering how to flow more air thru the hood to help cool it,but it sounds as though it need to run hot.
    Is this because it will burn more complete,thus making less carbon.
    I have swithched my motor to the XD-100,I have only about 5hrs. on it since the switch,but I can tell it is running cleaner.
    I would really like to be pointed in the direction of more info on the Tstat theory of running hotter.
    Thanks for your time!

    Ed

  6. Member Danrude's Avatar
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    #6

    Re: thermostats (clayshooter)

    From what I have read if the motor runs too cool then it builds up carbon faster. There has been a lot of discussion about checking the temperature of the heads to make sure the come up to operating temperature. So my thinking is they want to move that temperature higher to insure a better burn. Seahorse or Elgin would be able to better explain what is going on.
    Dan Burnette - Marietta, GA
    Triton 18TRX - 200 HO G2

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    #7

    Re: thermostats (Danrude)

    Bumping to the top.

  8. Member
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    #8

    Re: thermostats (20XL Pro Star)

    My understanding is that the EMM varies the oil and gas ratios dependent on engine temp. A first start cold motor is running rich (and producing more carbon) until it warms up. Using the hotter thermostats and plugs probably allow the EMM to run a more optimal ratio resulting in less carbon build up.

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