Here is acouple of good stories for you guys
One involved the cars driven by Darrell Waltrip during one of his championship seasons. Nelson found a way to fill the entire roll-cage of the car with several hundred pounds of buckshot. The car was weighed before the race, and found legal. But when Waltrip went onto the track during pace laps, and reached the banking, he'd pull a hidden lever which allowed the lead to pour from under the car and roll harmlessly down the banking. On the radio, Waltrip would indicate a successful drop by yelling "Bombs Away!" Then, with the car weighing considerably less than the mandated weight, Waltrip would proceed to blow away the field. NASCAR never discovered this trick. Nelson ingeniously located the exit spout where the jack was positioned. When NASCAR inspectors raised the car with a jack, they concealed the evidence, and cleared the car to qualify and run.
"It's the most ingenious thing I have seen in 30 years of motorsport." admitted FIA President Max Mosley
Smokey Yunicka, A master in the gray area
http://en.wikipedia.org/wiki/Smokey_Yunick
some stories of his
As with most successful racers, Yunick was a master of the gray area straddling the rules. Perhaps his most famous exploit was his #13 1966 Chevrolet Chevelle, driven by Curtis Turner. The car was so much faster than the competition during testing that they were certain that cheating was involved; some sort of aerodynamic enhancement was strongly suspected, but the car's profile seemed to be entirely stock, as the rules required. It was eventually discovered that what Yunick had built was an exact 7/8 scale replica of the production car. Since then, NASCAR has required each race car's roof, hood, and trunk to fit templates representing the production car's exact profile.
Another Yunick improvisation was getting around the regulations specifying a maximum size for the fuel tank, by using eleven foot coils of 2-inch diameter tubing for the fuel line to add about 5 gallons[1] to the car's fuel capacity. Once, NASCAR officials came up with a list of nine items for Yunick to fix before the car would be allowed on the track. The suspicious NASCAR officials had removed the tank for inspection. Yunick started the car with no gas tank and said "Better make it ten",[2] and drove it back to the pits. He used a basketball in the fuel tank which could be inflated when the car's fuel capacity was checked and deflated for the race.
Rule: Minimum ride height checked by sliding a pipe with a diameter equal to min ride height under the car.
Response: Had mechanics standing at the ready to help inspectors ... the car was parked on their toes, until Smokey pissed off an inspector and the inspector shoved one of the mechanics away from the car ... the mechanic got a bruised bum. Smokey's response was to put rows of aspirin tablets on top of the springs. The car would pass tech inspection (which were then only before the race), and as soon as it hit a bump all of the tablets would shatter and the car would drop.
Apparently another trick of Smokeys was to lift the car up on its springs to the legal height clearance to pass over the inspector's gauge and then freeze the shock absorbers with dry ice so the car stayed at the legal height long enough to be cleared.
Simon: Nils? You can close in now. Nils?
John McClane: [on the guard's phone] Attention! Attention! Nils is dead! I repeat, Nils is dead, ----head. So's his pal, and those four guys from the East German All-Stars, your boys at the bank? They're gonna be a little late.
Simon: [on the phone] John... in the back of the truck you're driving, there's $13 billon dollars worth in gold bullion. I wonder would a deal be out of the question?
John McClane: [on the phone] Yeah, I got a deal for you. Come out from that rock you're hiding under, and I'll drive this truck up your ass.
