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Comment by Syonyk

5 years ago

> Smokey Yunick

Oh, man. I'm not a huge NASCAR fan, but that guy. That guy. He was an absolute master of "But the rules didn't say I couldn't..." and probably is responsible for half the thickness of the modern rulebook on his own!

"What? The fuel tank capacity can't have an inflated basketball in it that springs a leak during the race, leaving us with more fuel capacity?"

"What? The fuel lines have to be a short path between the tank and engine? Now, look, nowhere in this here book does it say I can't stuff the frame rails with a couple hundred feet of spiraled fuel line. It gets an extra gallon or two in the car? Really? Huh..."

"Nowhere in the book does it say the bodywork has to actually match the size or positioning of the stock car the race car is based on. I can't help it if nobody else has totally redone the bodywork to improve aerodynamics... oh, OK, you're bringing cardboard templates next season, got it, that trick is done."

The guy was an absolute master of "creative advantages that weren't actually illegal at the time they were used."

The aero belly of his 1968 Camaro was interesting. The SBC-powered Indy car (probably the last of home-garage built vehicles for that race), the time he drove a NASCAR car back from an impound without the gas tank, etc.

Not to say that cheating didn't happen elsewhere. Check out the front-end sheet metal of the Trans-Am Boss 302s. Use of the headlight holes for brake ducting. The inline Autolite carb. There were some good minds at Holman-Moody, Kar Kraft, Bud Moore, etc.

> "What? The fuel tank capacity can't have an inflated basketball in it that springs a leak during the race, leaving us with more fuel capacity?"

Pardon my ignorance- what is the motivation for temporarily reducing the fuel capacity in this example? And why was it disallowed?

  • Fuel tank capacity is required to be 10 gallons. Say, 20 laps or so.

    They check, at the tech inspection, that your tank doesn't hold more than 10 gallons. Great.

    Except, once you deflate the basketball (or get creative with routing fuel lines all over the car), you actually have 11-12 gallons onboard.

    Which means, at the end of the race, when everyone else has to pit, you can make the "risky option" to skip the final pit stop, keep rolling, and, well, surprise of surprise, make it over the line (in first place) before you flame out.

  • Your fuel tank was only allowed to hold a certain amount of fuel because if you had more, you could go farther between pit stops, thereby covering more laps while the other drivers were stopped for gas.

    He would temporarily meet the small tank regulations during inspection, but under race conditions, the ball would burst, allowing for more space in the tank, which would get filled up with more fuel than his competitors at the first pit stop.

  • I assume the rule book specified a maximum fuel tank size, to ensure that teams were making roughly equal pit stops for refueling, etc. Installing a larger fuel tank with the volume taken up by an adjustable air reservoir means the tank starts at legal capacity, and increases in capacity after the race begins, allowing fewer stops for refueling.

  • When you qualify, your fuel tank is only allowed to hold X gallons. With the basketball inside, it held X gallons.

    When the basketball sprang a leak and deflated, the tank held X+Y gallons, netting a slight advantage between pit stops (an extra lap or two over 500 miles adds up)

  • Fuel capacities are reduced to minimize the fire in fiery crashes. But lower fuel capacity means more pit stops, which the racer wants to minimize.

    Temporarily reducing fuel capacity means the car passes tech inspection, but really has more capacity.

  • I suspect that it increased the fuel capacity from the nominal "max" at race start, so when you hit a pit stop you can put more in.