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Use of removable ballast clarified
04/23/2002
A change in the 2002 NHRA Rulebook that allows Sportsman competitors the ability to add weight to reach minimum weight requirements for a higher class has caused some confusion as to how this extra ballast must be carried in the vehicle. As a result, a handful of drivers have been disqualified from events for improper weight attachment. In hopes of clarifying the issue and resolving this problem in future events, the NHRA Tech department has released the following.
The Rulebook states that to permit "making a class" due to a difference in scale calibration, a maximum removable weight of 100 pounds is permitted. Removable weight must be securely mounted to the frame or frame structure by a minimum of two 1/2-inch diameter steel bolts per 100 pounds, or one 3/8-inch bolt per five pounds. Hose clamps, wire, strapping, tape, tie wraps, and other such devices for securing weight or ballast is prohibited.
If additional ballast is needed and is permitted by class requirements, it must be permanently attached to frame, bolted with two 1/2-inch diameter bolts per 100 pounds, with nuts welded to bolts. Maximum amount of removable and/or permanent ballast, unless otherwise stated under class requirements, is 500 pounds.
Return to 2002 Sportsman News Archive