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09-14-2011, 04:27 PM
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#1 |
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VIP Member
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Location: Arkansas - In the middle of everything.
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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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09-14-2011, 04:37 PM
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#2 |
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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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09-14-2011, 04:43 PM
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#3 |
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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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Billy Nees 1188 STK, SS I'm not spending 100K to win 2K |
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09-14-2011, 05:06 PM
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#4 |
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Re: NHRA Announces Changes to Class Guide
Great so NHRA now considers stocker drivers as ballast!!!
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09-14-2011, 08:44 PM
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#5 |
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Senior Member
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Location: Pierce NE
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Re: NHRA Announces Changes to Class Guide
So at 466 they only have one more hit to go with the autos. Who will be the one to throw them under the bus? And you guys thought Barton got crap for his run. Tom
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Tom Meyer 5240 SS Stock ??? |
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09-14-2011, 09:50 PM
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#6 |
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Re: NHRA Announces Changes to Class Guide
Does this mean this combo can now only run Super Stock ?
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09-15-2011, 12:22 PM
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#7 | |
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Re: NHRA Announces Changes to Class Guide
Quote:
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Bill Seabrooks - superfan1 Bridgeport, CT |
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09-14-2011, 09:49 PM
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#8 | |
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Re: NHRA Announces Changes to Class Guide
Quote:
Warren Johnson has been saying that for years about every class. In my case, that has been a cold hard fact, on numerous occasions.
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Alan Roehrich 212A G/S |
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09-15-2011, 08:16 AM
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#9 | |
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Re: NHRA Announces Changes to Class Guide
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09-15-2011, 08:20 AM
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#10 | |
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Re: NHRA Announces Changes to Class Guide
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