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What is the best "weather" to have a car dynoed?

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Old 07-14-2004, 12:22 PM
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Default What is the best "weather" to have a car dynoed?

The colder the degrees the better? What degrees is optimum?
Old 07-14-2004, 12:30 PM
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About 20 below in alaska in a deep valley 5000 feet below sea level
Old 07-14-2004, 12:36 PM
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For example, when I have my car dyno tuned friday it will be about 80 degrees, very low humidity, pretty close to sea level. Are these decent conditions?
Old 07-14-2004, 03:21 PM
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Yes, those are going to be pretty good conditions. If it is very hot with high humidity, you are going to see some negative results but I don't think that it would be that big of a deal. Besides, hot and humid is the weather that you may be driving alot in during the summer.
Old 07-14-2004, 03:39 PM
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If the dyno numbers are SAE corrected, then they will be close. The correction factor isnt perfect, but helps. The problem may be is if you get KR due to the intake air being too hot and if the motor is heat soaked.

Last edited by MyLS1Hauls; 07-20-2004 at 01:39 PM.
Old 07-14-2004, 04:43 PM
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we dont have "weather" in cali. its nice, nicer, and nicest
Old 07-14-2004, 05:58 PM
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cool air, low humidity and near sea level is best. Thats our problem in FL, we are at sea level, but the air is nasty (very hot and 80%+ humidity).
Old 07-14-2004, 05:58 PM
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the dyno compensates for the weather.
Old 07-14-2004, 06:08 PM
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Originally Posted by Bowtieman4life
the dyno compensates for the weather.
but not for the thick, wet, hot air that the motor has to breath to try and make power........
Old 07-14-2004, 06:23 PM
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Originally Posted by Country Boy
but not for the thick, wet, hot air that the motor has to breath to try and make power........
exactly what country said. FL has some of the lowest dynoing cars, but we make it up for them being quick at the track.

the dyno program is just a linear program based on temperatures up to about 90 degrees. it doesnt compensate for humidity which kills hp.
Old 07-14-2004, 06:51 PM
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I don't know if that is true. When I had my car dynoed the first time it was hot and humid and it made the same power three months later when it was cool. THe dyno guy told me it takes three external factors into consideration. He had three large gages sitting on the wall. One measured humidity, one measured temp and the other measured bar pressure(?). It may of been for show but he seems like a stand up guy. It was also a two year old Dyno Jet. Who knows.
Old 07-14-2004, 07:22 PM
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Originally Posted by Country Boy
but not for the thick, wet, hot air that the motor has to breath to try and make power........
It going to be hot(90 deg) when I get my car tuned friday, but low humidity.

FWIW, it's 5:35pm 93 degrees, relative humidity 13%

Last edited by Camaro SS 2002; 07-14-2004 at 07:39 PM.




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