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  #1  
Old 04-15-2001, 12:14 AM
blackcuda blackcuda is offline
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Question

Anybody know of a good conversion chart or formula to calculate 1/8 mi times over to 1/4 mi times?
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  #2  
Old 04-15-2001, 10:33 AM
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dschumers dschumers is offline
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Wink National Dragster

Find a copy of National Dragster. There is always an 1/8th to 1/4 index list in it. The list is reasonably accurate.
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Old 04-15-2001, 11:02 AM
MOPARMAN2 MOPARMAN2 is offline
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Lightbulb

To calculate your 1/8 mile times into 1/4 mile times multiply your 1/8 mile time by 1.58

7.00x1.58= 11.06 quarter time
6.50x1.58= 10.27 " "

I hope this helps.

Jake
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Old 04-16-2001, 06:54 PM
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dschumers dschumers is offline
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Biggrin Tried it!

Jake, I tried your formula against some of my timecards from last weekend. It was about a tenth slow. Not too bad!
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Old 04-24-2001, 05:31 AM
dartdart dartdart is offline
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Default 1/8-1/4 times

Both of my cars work out to a 1.56 conversion factor. Just take your 1/4 time and divide by your 1/8 time to get the factor for your car
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Old 06-20-2001, 11:43 PM
mr_340 mr_340 is offline
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Default 1/4 to 1/8 Conversion

I once went through the equations relating to accelarating a mass over a distance. I came up with the 1/8 mile ET was 64% (.64) of the 1/4 ET. I've also compared it to several classes of cars, including T/F and find it runs between .64 to .66. This would be equivalent to 1.56 to 1.51 inverted.
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