NHRA Disqualifies Two Competitors during the Chevrolet Perfo

[jmcarter]

Originally Posted by PontiacManiac

I had a fake battery in tech a couple years ago they found and we didn't even know it was a fake battery...Bo actually argued with the tech guy about it until we unscrewed it and lifted it up. There were quite a few of us that had them and it was more annoying than anything. I don't understand why they care so much about that. It is still stock appearing. I can't believe they would throw someone out for that.

NHRA had busted a few on this earlier this year and even put a reminder on NHRARacer. So with all those warnings it was probably pretty cut and dry as far as they were concerned.

[Evan Smith]

I believe the pulley was too large and there is a spec on the pulley diameter.

[Mike Schwartz]

Classracerinfo.com shows a spec of 3.5" upper and 8" lower on the pulleys for the 2013 CJ (2014 won't load). If you are using OEM pulleys and wanted to argue that the OEM manufacturing tolerances are unknown, how much deviation from the posted specs should you be allowed? Up to 1%? 5%? 10%? At what point does it become an unfair advantage?

Does anyone know how far off spec the pulley actually was?

[Troy Pourciau]

Originally Posted by Mike Schwartz

Classracerinfo.com shows a spec of 3.5" upper and 8" lower on the pulleys for the 2013 CJ (2014 won't load). If you are using OEM pulleys and wanted to argue that the OEM manufacturing tolerances are unknown, how much deviation from the posted specs should you be allowed? Up to 1%? 5%? 10%? At what point does it become an unfair advantage?

Does anyone know how far off spec the pulley actually was?

Tech inspectors discovered the supercharger pulley did not meet NHRA specifications.

That all it says Mike.