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Question about the altitude time correction

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Old Nov 24, 2013 | 07:58 PM
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aqprider's Avatar
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Icon2 Question about the altitude time correction

Well, here goes a question for the math gurus...

If I ran 17.7 at 8500 feet above sea level and outside air temperature was 22C°, then what time I would doing with a same setup at sea level (or maybe, at 700feet) with same OAT???


Thanks in advance for who can give me the most precise answer
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Old Nov 24, 2013 | 08:32 PM
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From: Zionsville, IN, U.S.A.
Default Re: Question about the altitude time correction

These are the altitude corrected tracks that NHRA races at. http://www.nhra.com/competition/altitude.aspx

Denver is the highest altitude track at 5800. So if you went 17.7 there, you'd run 16.6 at sea level. Running 17.7 at 8500ft would roughly be 16.0.

Assuming you are naturally aspirated.
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Old Nov 25, 2013 | 05:02 AM
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Default Re: Question about the altitude time correction

thanks ))
using wallace racing calculators I got almost the same result

yes, Iīm NA I/E F22A lude
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Old Nov 25, 2013 | 04:36 PM
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Default Re: Question about the altitude time correction

Is 8500 ft your adjusted altitude for barametirc pressure??? Theres days up here in montana that we are at 6335 and the adjusted is well above 8000, in the summer time...
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Old Nov 25, 2013 | 05:43 PM
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Default Re: Question about the altitude time correction

Originally Posted by JDMAF
Is 8500 ft your adjusted altitude for barametirc pressure??? Theres days up here in montana that we are at 6335 and the adjusted is well above 8000, in the summer time...
no, I didnīt

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