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Discussion Starter · #1 ·
Does anybody know how much time should come off my E.T. when I put on my ported heads & cams? I am running a 13.4 (lacr) corrected 12.9 (palmdale). I am assuming around a second. (maybe) :uhh:
 

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Js281GT said:
Does anybody know how much time should come off my E.T. when I put on my ported heads & cams? I am running a 13.4 (lacr) corrected 12.9 (palmdale). I am assuming around a second. (maybe) :uhh:
Don't know the answer to you question, but your post brings a question to my mind...

How does "corrected" time get calculated?
 

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michael.konor said:
Don't know the answer to you question, but your post brings a question to my mind...

How does "corrected" time get calculated?
It gets calculated by taking your elevation and time and bring it down to sea level. I forgot the formula but it's not hard, let me look for it really quick.
 

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Multiply your ET and MPH by the appropiate numbers below

Alt.....ET... MPH
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
 

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Discussion Starter · #5 ·
WoW :uhh:
 

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Js281GT said:
WoW :uhh:
Sorry your post got kinda hi-jacked. But about 1/2 a sec would come off your 1/4 time.
 
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