NHRA Disqualifies Two Competitors during the Chevrolet Perfo

[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.

[Wayne Kerr]

I have it from a good source that the supercharger pulley was larger than the specification.

There is no plus or minus tolerance on the pulley spec's. unlike crank stroke.

The rule needs to be clarified before a competitor gets pitched. Not a good call by the NHRA.

See you at the races,
Wayne Kerr

[Ed Wright]

Originally Posted by Wayne Kerr

I have it from a good source that the supercharger pulley was larger than the specification.

There is no plus or minus tolerance on the pulley spec's. unlike crank stroke.

The rule needs to be clarified before a competitor gets pitched. Not a good call by the NHRA.

See you at the races,
Wayne Kerr

I was told the pulley was smaller, by another supercharged CJ racer, and that he should have had another 120 lbs in the car to run that pulley.

[Jason]

Originally Posted by Wayne Kerr

I have it from a good source that the supercharger pulley was larger than the specification.

There is no plus or minus tolerance on the pulley spec's. unlike crank stroke.

The rule needs to be clarified before a competitor gets pitched. Not a good call by the NHRA.

See you at the races,
Wayne Kerr

Your good source should have told you that the pulley was from a different year Ford supercharger. Thousandths of an inch had nothing to do with the DQ. Using a different OEM Ford pulley from another year is what got the racer tossed.

[gbur]

With all the underrated hp thats out there, you still have to cheat. If that is the way , then stay the hell home

[FS Fan]

The pulley was larger so it actually made less boost but was not the correct size for that year. I'm sure he will have it next time and be faster.

[Ed Wright]

Several different pulleys, blower sizes for different year models. Surprising the tech guys can keep up with it all.

[Ed Wright]

Received this today:
I was reading the DQ at Indy thread. There is a little misinformation. Rodgers was running too large a pulley which in fact gives those motors more HP at high RPM according to Jimmy Ronzello who works for Ford on the Cobra Jets. The CJs turn such high RPM that the belt doesn't slip on the larger pulley at high RPM and ends up producing more boost than the smaller pulley. That is why they have a 120 lb weight penalty.

[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.