Quote:
Originally Posted by Steve Williams
The NHRA has posted weights on reciprocating engine components. If you build an engine using stock crank, rods and pistons and the weight is less than published weight for aftermarket pieces, is this legal? I have weighed stock pieces versus aftermarket pieces and the stock pieces always come up light when compared to aftermarket published numbers. Am I going to be legal or be a cheater? After all it is stock......
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I'm just making an assumption here. NHRA has made allowances for forged pistons that are up to .070" over stock bore. A forged piston, something like a TRW for example, will weigh more than a factory standard bore cast piston. NHRA may rightfully figure a majority of Stock racers are using forged and not factory issue pistons therefore the weight is on the assumption one is going to build an over-bored, forged piston engine???
And if you are light for some reason, there's nothing saying you can't add weight to your pistons. That'll give you something to talk about in the pits!