T-Rex: The illegal race car that wasn't illegal

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JRS

JRS

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In a reaction to the whinging, whining and general bull-**** going on at the moment about the Red Bull floor, I'm going to talk about something else. Another car that some race fans will swear blind was completely illegal despite passing tech inspection. So here goes for a quick stroll down memory lane, back to one Saturday night in May of 1997 at Charlotte Motor Speedway in North Carolina.

Well, actually it all began a bit earlier than that. A few seasons into his time as a car owner in NASCAR's Cup series, Rick Hendrick decided that he wanted his team to build their cars from the ground up. To that end, he set up a research and development programme and hired some of the brightest and best talent in the stock car world. By the mid '90s, his cars were winning championships. In January of 1996, Hendrick hired Rex Stump to run the R&D operation and vowed to leave him to it by taking a hands-off approach. Stump had one mission in mind.

Rex Stump said:
"We went around to all of the people in the shop and said, 'If you had a blank sheet of paper, what would you do different in building a race car?'"

The rulebook was studied. The engineers came back. 60 or so minds with many ideas about where improvements in race car design could be made that fit perfectly into the rules as laid out. If the rule was a bit fuzzy, push it. If a rule wasn't specifically in place, go wild.

Ray Evernham, crew chief for the #24 Hendrick car of Jeff Gordon, was a long-time champion of the R&D effort and expressed an interest in using what they came up with. Rick Hendrick, seeing the car built for the first time, figured that they had next to no chance of being allowed to ever run the car in anger but went ahead and invited the NASCAR tech inspectors to see it before taking it to a track. Gary Nelson was the chief tech inspector and series director at the time.

Gary Nelson said:
"We looked at our rulebook and looked at the car and said it was not outside the parameters of the rulebook. But we followed that by saying, 'Remember, we do control the rules. We can write more.'"

Not much detail has ever been given away about what exactly this car had that made it so special. Rex Stump never wanted to let go of all his team's secrets! But in virtually every respect it was a clean-sheet rework of the NASCAR stock car. Thicker, stronger frame rails that were more resistant to twisting. The rear springs and shock absorbers were mounted differently. The floor pan was raised inside the car. The door bars were raised.

The car was tested at Texas Motor Speedway. It was fast out of the box, and only got faster as the team and driver got a handle on how to set it up. And one more modification was needed:

Jeff Gordon said:
"If you would move that seat so I didn't feel like it was falling over on the right front, I'll bet I could get another two or three tenths out of it"

It was done, and it was so.

In 1997, Jeff Gordon and the DuPont #24 car were at the top of their game. Stump opined that you could have built a shopping trolley and Gordon would take it to Victory Lane that year. So why build this new car? Simple, really.

Rex Stump said:
"The object wasn't to beat the competition. It was to beat what we had."

May rolled around, and with it the race then called The Winston. The All Star race in the NASCAR Cup season, it doesn't pay points (i.e doesn't count towards the championship) but instead a big cash prize for winning. Teams often change to a special paintscheme for the race, and the #24 car was no exception. As part of a deal to promote the second Jurassic Park film, the team painted a large Tyrannosaurus Rex on the bonnet. With that, and the hand that Rex Stump had in creating the car, the nickname was obvious.

T-Rex was born.

The car was unloaded at the track, and it became readily apparent to the trained eyes in the garage area that this car was something new. At rest, the front valance sat a couple of inches higher than on the other cars. On the track, it was a different story. It would 'land' in the middle of the turns, nose just kissing the ground and the tail staying up. The aerodynamics of the car and its attitude in the corners were creating negative pressure underneath, sucking it onto the track - ground effect.

Following a small mistake in qualifying, Jeff Gordon started the first segment of the Saturday night race in 19th. After 30 laps, he was 3rd. The field was then reversed for the second segment and he started 16th. He finished that segment 4th.

Jeff Gordon said:
"I just remember that car being stuck to the track in a way that I had never felt a car be stuck before,"...."It just gave me confidence, and it was fast - it was awesome."

The final 10 lap segment started. Less than a lap and a half later, Gordon was in the lead. And no-one could catch him. The game had been changed.

Or had it?

Ray Evernham said:
"The other car owners looked at it and they all whined and flipped out and said, 'We'll have to build all new cars!'"

While NASCAR hadn't been a "stock" car series for decades, they did like to keep a lid on costs. And what Rex Stump and his engineers had done was create a situation where everyone would have to throw away all their cars and start over. There was no way that Gary Nelson and his team could let that just happen. But the car wasn't illegal, per se. The rulebook would have to be altered.

Gary Nelson used the story of the Indianapolis 500 going to rear-engined cars to explain why they had to nip what the Hendrick organisation in the bud.

Gary Nelson said:
"I've always remembered that. If one official at Indy had said, 'Sorry, but your engine is in the wrong place, you're not racing,' racing would have been different from that point on.

"But they let the car race and didn't react. The next year, 80 or 90 percent of the field had engines in the back, and every car owner in the sport had instant obsolescence for all of his cars."

"As caretakers of the sport, NASCAR's responsibility is to prevent car owners from having to constantly chase things like that....We don't want them to have to throw out everything they have because we didn't recognize something soon enough."

In post-race inspection for The Winston, T-Rex passed. It couldn't not pass - nothing in the rules at that time prohibited it. So, Jeff Gordon won The Winston. And the team were told never to bring that car back to a race. Between The Winston and the next race on the calendar, the Coca-Cola 600 held at Charlotte the next weekend, Hendrick invited NASCAR to come look at T-Rex and tell him exactly why he couldn't continue to race it. By doing that, by letting NASCAR work out exactly where the rulebook had gone wrong in allowing this monster onto the track, Evernham believes that they saved the remainder of their fleet of cars from having to be scrapped.

Ray Evernham said:
"We were trying to win championships and do different things and it was like, 'Do we want to fight this battle and give up everything else, or do we give up on this one and go on?' I know Rex took that hard because it was his baby. I didn't like it all and I still don't, but they didn't want the car, bottom line, and you have to pick your fights."

T-Rex did return, in much modified form, later in the year. It was no longer the all-conquering speed demon from that night in North Carolina though. While a few races and one win in a non-points race seems like a poor return from all that R&D effort, the team never saw it that way.

Rick Hendrick said:
"We learned stuff off of that car that we wound up using inside the new rules they wrote that have helped us on and on and on....That car paid us big dividends."
 
Some of my favourite 'getting around the rulebook' stories come from NASCAR. Particularly anything Smokey Yunick did - an incredible engineer, rule-bender and human being.

***edit***

In modern times, I suppose Chad Knaus is the closest NASCAR has to the Ray Evernhams, Rex Stumps and Smokey Yunicks. And he ain't got a thing on what they all used to get up to, especially Smokey.
 
Yeah, I've always loved that one. And this one:

Another Yunick improvisation was getting around the regulations specifying a maximum size for the fuel tank, by using eleven foot (three meter) coils of 2-inch (5-centimeter) diameter tubing for the fuel line to add about 5 gallons (19 liters) 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," and drove it back to the pits.
 

This was the same guy who actually introduced wings to open-wheel motosport. 1962 at Indianapolis for the 500, he mounted a wing on a car entered for Jim Rathmann. It increased cornering speeds hugely, but made the car slower than rivals on the straights due to the increased drag. Wings were banned straight away by USAC, before being allowed again in the '70s. Remember that one the next time someone says that the Lotus 49 was the first racing car to have wings - Chapman and his merry band weren't even nearly the first to try it :)

He also got involved in the Trans Am series, building a Camaro that Don Yenko later found success with. He couldn't even leave that design alone:

In typical Yunick fashion, the car, although superficially a stock Camaro, had acid-dipped body panels and thinner window glass to reduce weight, the front end of the body tilted downwards and the windshield laid back for aerodynamics, all four fenders widened, the front subframe Z'ed (to physically move the front suspension higher and lower the front of the car) and the floorpan moved up to lower the car, and many other detailed modifications. The drip rails were even brought closer to the body for a tiny aerodynamic improvement. A connector to the engine oil system was extended into the car's interior, to allow the driver to add oil from a pressurized hose during pit stops. In order to allow the driver enough freedom of movement, the shoulder harness was modified to include a cable-ratchet mechanism from a military helicopter.
 
EDIT: JRS, I'm having trouble finding anything on Wiki about the 1997 #24 car. Not doubting the information you gave to us one bit; just find it odd that for a car that generated the controversy that it did, that there is nothing about it.

Yeah, Wikipedia doesn't really go into that kind of detail in the '97 season article. But the information is out there if you tap up Google. Some of it is contradictory (some articles and writers swear blind that the car never raced again but it did in modified form, some place the testing of the car at Charlotte rather than Texas, etc). I tend to go with the accounts that match up the most.

Same goes for a lot of the stories about Smokey Yunick. Much of what has been written is contradictory, mostly because Smokey wasn't above telling a story just for the sake of telling a story! His claim that he once ran a supercharger on a NASCAR stocker (a big no-no, and one that even a blind man could spot in scrutineering!) probably falls into that category, though if anyone could hide a supercharger from NASCAR officials it would have been him....
 
Really? From back of the pack to near the front in the first two segments, and then:


That's the final segment of the race. In five laps, Jeff went from 4th place to 4 car lengths out in front. You just didn't do that at Charlotte in those days. Sat right on the bottom of the race track in the turns, not a hint of a push up the track in the centre. Not sure how you can say that it 'doesn't look anything special'....
 
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