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Is there an NHRA speed requirement for running a rear wing, on a door car? Or would it be a good idea to run one anyway if there isn't? I will be running a 31x16.5 Et Street, in a 66 Nova, at around 170mph.
 

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T/S 368E
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Never heard of rule, but at 170, pretty much a given.

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would it be silly to run one on a 150-160 mph true 10.5 car? I realize 150 ish isn't screaming fast but a wing might make it stable right?
 

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T/S 368E
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Depending on body style, I've heard & read that the air wrapping around can cause an issue at 140-150.

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