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Thread: 2011 Nationals

  1. #91
    Senior Member Carroll Shelby GlennCMC70's Avatar
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    Looking at those numbers, tells me he could have cert'ed the card at too low of a temp. LT1's OEM operating temp is 210-220. Likely once it heated up (last pull) it was making peak power.

    I had a big talk w/ Al yesterday about having some talks on the forums about being very deliberate and accurate w/ your dyno procedure. Adam was always very good about having group dyno days and surely this was one of the reasons - to point out where flaws were being made in the process. Water and oil temp, trans temp, diff temp, air pressure in the tires all play a big part in the number displayed. Using the same tire pressure gauge as well.
    I likely have over 100 pull's on my CMC LT1 motor and it has never surprised me w/ odd numbers. I've dyno'ed in the winter cold, summer heat, at 200 ft, 1200 ft, and 6000 ft. I've always been with in about 1-2mm plate size of where I was the previous year or previous dyno.

    I'm not saying Kent wasn't, but you have to wonder if it was a contributing factor.

  2. #92
    Senior Member Carroll Shelby AllZWay's Avatar
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    Quote Originally Posted by GlennCMC70 View Post
    I likely have over 100 pull's on my CMC LT1 motor and it has never surprised me w/ odd numbers. I've dyno'ed in the winter cold, summer heat, at 200 ft, 1200 ft, and 6000 ft. I've always been with in about 1-2mm plate size of where I was the previous year or previous dyno.
    That is what is troublesome... I have dynoed on multiple different dynos and different temps...etc and I have never been suprised with higher numbers..... only with lower numbers when the knock sensor failed and the fuel pressure regulator quit. Both times the lower numbers led me to find out why. My car has never dynoed above 264 even with three different engines.

    I would be extremely pissed to fail on a dyno that I previously passed just a couple of days earlier. Something is wrong in this picture for sure.

    Usually a LT1 gets slower the hotter it gets...not faster.

  3. #93
    Quote Originally Posted by GlennCMC70 View Post
    I've done well w/ zero infractions and DQ's 4 years straight w/ an LT1.
    That is why you are TRD(Mr. Perfect, I never make mistakes, Mr. GRM...... etc., etc)


    Can't help myself. Have a nice day.
    If you're going to be DUMB you gotta be TOUGH

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