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Old 07-10-2025, 09:33 PM   #44
Jeff Niceswanger
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Default Re: IHRA at Columbus.

Quote:
Originally Posted by MikeMoller View Post
What indexes are they using for stock and super stock? And what are they using to classify these cars?
They are using the old indexes from NHRA. Back before they changed them. IHRA was this way before they disbanded Class racing a few years ago. Nothing new here, it's the way they do it. So just add .3 to everything from NHRA. NHRA 10.40 flat index, IHRA 10.70
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