View Full Version : Altitude Correction Factors
Robert_K
11-12-2005, 12:31 PM
Do you guys agree with this chart?
http://www.wallaceracing.com/altitudecorrection.htm
To convert your timeslip ET and MPH to sea level. Multiply applicable factor times your ET or MPH.
(Example: You ran a 14.4 @ 103 MPH at 5000' elevation track. The correction factors are .9367 and 1.0661 for 5000'. (14.4 * .9367) = 13.50 , (103 * 1.0661) = 109.80 MPH. So the correct timeslip would be 13.50 @ 109.80 MPH at sea level)
http://www.wallaceracing.com/altitudecorrection.htm
Weston
11-12-2005, 02:28 PM
Do you guys agree with this chart?
http://www.wallaceracing.com/altitudecorrection.htm
To convert your timeslip ET and MPH to sea level. Multiply applicable factor times your ET or MPH.
(Example: You ran a 14.4 @ 103 MPH at 5000' elevation track. The correction factors are .9367 and 1.0661 for 5000'. (14.4 * .9367) = 13.50 , (103 * 1.0661) = 109.80 MPH. So the correct timeslip would be 13.50 @ 109.80 MPH at sea level)
http://www.wallaceracing.com/altitudecorrection.htm
I think it's pretty good a NA car, but not for a turbo car, and a supercharger is somewhere in the middle.
Robert_K
11-12-2005, 02:42 PM
With that being said... So since C&D tested the Z and ran a 14.1 @ 101. At 5000' I should run high low 15's @ 95?
Weston
11-12-2005, 02:47 PM
With that being said... So since C&D tested the Z and ran a 14.1 @ 101. At 5000' I should run high low 15's @ 95?
Sounds close... I remember Mudd and Ashton running 15.3's one night in stock Z's, and I believe Mudd's best ever was a 15.1.
Brian
11-12-2005, 02:50 PM
For a turbo car there are too many factors. Most will run close to the same as sea level IF the turbo is within its efficiency island, and is allowed to run more boost given the lower atmospheric pressure. A SC car is effected almost as much as an N/A car though.
Robert_K
11-12-2005, 02:50 PM
Man... I'm so slow now. :D 14.3 was the best in the Evo @ PMI. And thats before the MBC and Exhaust.
Weston
11-12-2005, 03:00 PM
Man... I'm so slow now. :D 14.3 was the best in the Evo @ PMI. And thats before the MBC and Exhaust.
But that's with an AWD car, so a 15 second FWD Honda could give it a run for it's money anywhere else.
Robert_K
11-12-2005, 03:12 PM
But that's with an AWD car, so a 15 second FWD Honda could give it a run for it's money anywhere else.
Yes I guess it could give the Z a run for its money... Time to go look for a SC. :D
civic00si
11-12-2005, 06:02 PM
yeah rob i saw a z when they first came out at pueblo. he had a exhaust, intake and ground wire kit.. he ran a best of 14.7... you have a long ways to go to catch up to where you were at:) but remember no more problems:D
civic00si
11-12-2005, 06:04 PM
http://members.tripod.com/~MY5LTRLXCPE/altitude.html
here is the correction charts for na, sc, an turbo applications
Turbo13
11-12-2005, 06:23 PM
But that's with an AWD car, so a 15 second FWD Honda could give it a run for it's money anywhere else.
Yeah but his 60ft's were in the 2's anyways. Properly driven he would have had an advantage.....
Robert_K
11-12-2005, 08:09 PM
Dis is true... I had a hard time getting good 60ft's :(
Yeah but his 60ft's were in the 2's anyways. Properly driven he would have had an advantage.....
-=[Juztin]=-
11-12-2005, 09:16 PM
real men go off of uncorrected wheel hp!
Robert_K
11-13-2005, 06:04 AM
=-']real men go off of uncorrected wheel hp!
You can not post about 1/4 times. You need to pop your Bandi cherry 1st. :D jfwy
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