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SW20 GT IDLE?

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rileseffect
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2016/05/25 20:25:37 (permalink)
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SW20 GT IDLE?

Hi guys. I'm new to the MR2 forums and am just wondering what the SW20 GTs base idle is?
Mine seems to run at around 1200 - 1300rpm on cold start then idle at 900rpm once at operating temp.
I'm confident their are no intake or vacuum leaks as I have gone over everything and also replaced all vacuum lines. The temp gauge is reading correctly so I don't think its to do with a cold start type thing. 900rpm just doesn't seem right to me.
 
Thanks
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    Matts_SW20
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    Re: SW20 GT IDLE? 2016/05/25 21:27:52 (permalink)
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    Those details match mine, doesn't seem out of the ordinary. Don't know why they idle that high though, potentially something to do with balance *shrugs*

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    Carmikey
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    Re: SW20 GT IDLE? 2016/05/26 08:48:48 (permalink)
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    rileseffect
    Hi guys. I'm new to the MR2 forums and am just wondering what the SW20 GTs base idle is?
    Mine seems to run at around 1200 - 1300rpm on cold start then idle at 900rpm once at operating temp.
    I'm confident their are no intake or vacuum leaks as I have gone over everything and also replaced all vacuum lines. The temp gauge is reading correctly so I don't think its to do with a cold start type thing. 900rpm just doesn't seem right to me.
     
    Thanks


    Sounds pretty close.  All mine, once at norm operating temp set between 8-850rpm. both my na's & turbos are the same at idle.

    AW11 parts for sale:
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    Falcon
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    Re: SW20 GT IDLE? 2016/05/26 09:04:22 (permalink)
    +1 (1)
    As Mike says its very close and tacos are not always spot on anyway.
    Might be an idea to check the base (static) ignition timing too.
    #4
    P E T E
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    Re: SW20 GT IDLE? 2016/05/26 09:23:56 (permalink)
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    is it turbo or NA, & what Gen engine?
    Turbo Gen 2 is supposed to be 850rpm at factory I think. There is a sticker on the engine bonnet that states the idle rpm.
     
    If you have high electrical load (Front lights on or defogger on) then I think the idle gets bumped up by 50rpm.
     
    I have no idea about the NA's though.

    > P E T E <
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    Peter
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    Re: SW20 GT IDLE? 2016/05/26 09:32:08 (permalink)
    +1 (1)
    By the Tacho my engine is idling at approx 900 to 1000 RPM.
    A little while ago when we had a Dyno day at WTF Auto, I observed that the Dyno readout was showing more than 100 RPM lower than the Tacho.
    I asked the question.
    It is apparently common for our Tachos to read high.
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    Falcon
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    Re: SW20 GT IDLE? 2016/05/26 10:25:43 (permalink)
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    Peter is correct.  Very common for tacko to be off a bit.
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    rileseffect
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    Re: SW20 GT IDLE? 2016/05/26 17:15:38 (permalink)
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    Thanks for all the replies guys! good to hear its normal. mine is the 1990 jdm mr2 turbo
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