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Old 09-14-2011, 05:17 AM   #1
jmcarter
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Default Re: NHRA Announces Changes to Class Guide

Fezell is entered at Charlotte in AA/S....guess that will be an interesting conversation in tech line today.
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Old 09-14-2011, 08:35 AM   #2
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Default Re: NHRA Announces Changes to Class Guide

So backing up, at what hp will the autos no longer be in stock?? At 491 the sticks carry 610 extra 110 over the legal amount. Tom
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Old 09-14-2011, 09:13 AM   #3
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Default Re: NHRA Announces Changes to Class Guide

do we have a link for this? because that would be NHRA actually doing the right thing, and that's kinda rare these days
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Old 09-14-2011, 09:15 AM   #4
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Default Re: NHRA Announces Changes to Class Guide

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do we have a link for this? because that would be NHRA actually doing the right thing, and that's kinda rare these days
just saw this on the new nhraracer.com. Kudos to NHRA and y'all boys keep the hammer down!!!!
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Old 09-14-2011, 02:17 PM   #5
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Cool Re: NHRA Announces Changes to Class Guide

Quote:
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So backing up, at what hp will the autos no longer be in stock?? At 491 the sticks carry 610 extra 110 over the legal amount. Tom
Take the car shipping weight of 3240 add the 500 subtract the jockey weight of 170 divide by AA 7.5

= 476....

476X7.5= 3570 +170 =3740....

475

I am not sure how that will ultimately play out with the new max weight rule....But thats a math quandry for a different day....but it sort of looks like now your max weight for say a CJ auto @ 461 is 3740.....and not the 8X461+170
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Old 09-14-2011, 04:27 PM   #6
Dwight Southerland
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Default Re: NHRA Announces Changes to Class Guide

Driver weight is never considered in calculation for class. It is only added to the classification weight for weight at the scales. The minimum vehicle weight to run AA/S with a power factor of 476 is 476 x 7.5 = 3570. The 170 lb allowance for the driver weight is added to that to determine a scale weight : 3570 + 170 = 3750 That number would be placed on the side window for the people at the scale to reference.

If you want to calculate the maximum horsepower in question for the 2008 CJ, use the shipping weight of 3240 and add 500 to it (the maximum allowable ballast). That total is 3740. Then divide by the AA/S 7.5 weight break (3740 / 7.5). The answer is 498.67. That causes me to question NHRA's decision and calculations.

491 x 7.5 = 3682.5 3683 - 500 = 3183

Their claim of 610 lbs. means 3240 + 610 = 3850. I don't know where they get that.
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Old 09-14-2011, 04:37 PM   #7
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Default Re: NHRA Announces Changes to Class Guide

What about Downings combo ?
This is not his is it ?
think he has a 231 or what ever it is engine.
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Old 09-14-2011, 04:43 PM   #8
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Default Re: NHRA Announces Changes to Class Guide

491 x7.5 =3682.5 +170= 3852.5 -610 = 3242.5 rounds to 3240. They included the driver!
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Old 09-14-2011, 05:06 PM   #9
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Default Re: NHRA Announces Changes to Class Guide

Great so NHRA now considers stocker drivers as ballast!!!
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