Re: You asked fo it - here it is NHRA Factory Stock Showdown
Actually, the supercharged cars were running at 3600 pounds at Bristol. The weights revised after Houston to the following:
Effective on April 11, 2012, the new weight restrictions are:
3150 lbs: All vehicles using a naturally-aspirated V8 engine under 400 cubic inches
(Change: 100 pounds removed)
3250 lbs: All vehicles using a naturally-aspirated V8 engine over 399 cubic inches
(Change: New classification)
3350 lbs: All vehicles using a naturally-aspirated engine with more than eight cylinders
(Change: 50 pounds removed)
3600 lbs: All vehicles using a supercharged or turbocharged engine
(Change: 50 pounds added)
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