Thread: Is your IAT sensor hurting performance? Find out here!

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  1. #1 Re: Is your IAT sensor hurting performance? Find out here! 
    TDCRacing
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    Quote Originally Posted by Reptile View Post
    Well, and here's another thing to consider. We need better IAT sensors. Not only for accuracy, but do you guys know what the normal refresh rate is? It's anywhere from 7-10 seconds. Voilant (sp?) sells an IAT sensor for the GTO's, and it's extremely expensive, but it's got an almost instant refresh rate, meaning that it's pretty much real time. Think about it. IF you're sitting in the staging lanes and everybody here is going to have heat soak issues. Once you step on that throttle, you're not getting 120* air into the engine, it's considerablly cooler.....Now if it takes 10 seconds to read the correct air, you're almost done, and you could possibly have made up .3 seconds in your quarter time if you could read better. At this point I honestly don't think it matters what type of filter you have if things aren't reading right.

    Am I making sense? Maybe not.
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    Last edited by TDCRacing; 03-28-2008 at 02:58 PM.
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  2. #2 Re: Is your IAT sensor hurting performance? Find out here! 
    TDCRacing
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    Quote Originally Posted by SyntheticShield View Post
    Now THERE is some useful information. Let me ask this then, the refresh rate is a function of the PCM, is it not? Is there no way to make the refresh rate faster in the PCM? Or does it require the sensor to do so?
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    Last edited by TDCRacing; 03-28-2008 at 02:59 PM.
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  3. #3 Re: Is your IAT sensor hurting performance? Find out here! 
    TDCRacing
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    Last edited by TDCRacing; 03-28-2008 at 03:03 PM.
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  4. #4 Re: Is your IAT sensor hurting performance? Find out here! 
    TDCRacing
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    Quote Originally Posted by Reptile View Post
    I "think" that it actually has something to do with the sensitivity of the sensor.

    There was a thread a couple years ago on KCPMC about a sensor, that you could solder in place of the old one.....actually rebuilding your IAT specifically.
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    Last edited by TDCRacing; 03-28-2008 at 03:01 PM.
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  5. #5 Re: Is your IAT sensor hurting performance? Find out here! 
    TDCRacing
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    Quote Originally Posted by TDCRacing View Post
    huh....is there any way of testing this to make sure(not saying your wrong) ok lets say with the car on or running and looking at the scanner wait and let it sit until it reaches ambient temps (iat sensor out) and stick it in a glass of ice water (32*f) and see how long it takes for it to change and that could also tell you if it is accurate....would this be a good test???
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    Last edited by TDCRacing; 03-28-2008 at 03:01 PM.
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  6. #6 Re: Is your IAT sensor hurting performance? Find out here! 
    TDCRacing
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    Quote Originally Posted by Reptile View Post
    I'm not sure about the whole water thing, but a can of compressed air turned upside down may be a good test. I may even do this tonight if I think about it.
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  7. #7 Re: Is your IAT sensor hurting performance? Find out here! 
    TDCRacing
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    Quote Originally Posted by TDCRacing View Post

    ....ok true about the refresh rate but what about something that has an accurate temp so we could check the accuracy of the iat also(that why i had mentioned the ice water because it will be 32*) any ideas??
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