Louder than 60/70 non turbo formula one? No idea as I never heard a NASCAR close up, but guessing short un silenced exhausts and intake roar.
I have no point of reference to that benchmark. If they were lower RPM engines then I imagine that they must sound similar.
@Aroogah started
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Louder than 60/70 non turbo formula one? No idea as I never heard a NASCAR close up, but guessing short un silenced exhausts and intake roar.