NHRA Elevation Correction Factor

To convert your timeslip ET and MPH to sea level. Multiply applicable factor times your ET or MPH.

(Example: You ran a 13.8 @ 100 MPH at 5000' elevation track.

The correction factors are .9367 and 1.0661 for 5000'. (13.8* .9367) = 12.93 , (100 * 1.0661) = 106.61 MPH. So the correct timeslip would be 12.93 @ 106.61 MPH.)

ET correction factor is  -.0013 per 100 ft
MPH correction factor is + .0014 per 100 ft.


Altitude (in feet) 	Elapsed Time Factor 	MPH Factor
1200 		.9874 			1.0129
1300 		.9861 			1.0143
1400 		.9848 			1.0157
1500 		.9835 			1.0171
1600 		.9822 			1.0185
1700 		.9809 			1.0199
1800 		.9796 			1.0213
1900 		.9783 			1.0227
2000 		.9770 			1.0241
2100 		.9757 			1.0255
2200 		.9744 			1.0269
2300 		.9731 			1.0283
2400 		.9718 			1.0297
2500 		.9705 			1.0311
2600 		.9692 			1.0325
2700 		.9679 			1.0339
2800 		.9666 			1.0353
2900 		.9653 			1.0367
3000 		.9640 			1.0381
3100 		.9627 			1.0395
3200 		.9614 			1.0409
3300 		.9601 			1.0423
3400 		.9588 			1.0437
3500 		.9575 			1.0451
3600 		.9562 			1.0465
3700 		.9549 			1.0479
3800 		.9536 			1.0493
3900 		.9523 			1.0507
4000 		.9510 			1.0521
4100 		.9497 			1.0535
4200 		.9484 			1.0549
4300 		.9471 			1.0563
4400 		.9458 			1.0577
4500 		.9445 			1.0591
4600 		.9432 			1.0605
4700 		.9419 			1.0619
4800 		.9406 			1.0633
4900 		.9393 			1.0647
5000 		.9380 			1.0661
5100 		.9367 			1.0675
5200 		.9354 			1.0689
5300 		.9341 			1.0703
5400 		.9328 			1.0717
5500 		.9315 			1.0731
5600 		.9302 			1.0745
5700 		.9289 			1.0759
5800 		.9276 			1.0773
5900 		.9263 			1.0787
6000 		.9250 			1.0801
6100		.9237			1.0815
6200		.9224			1.0829
6300		.9211			1.0843
6400		.9198			1.0857
6500		.9185			1.0871			
6600		.9172			1.0885
6700		.9159			1.0899