Corvette Chiefs, Pt. 4 of 5 – Tom Wallace, Racer C6 Chief Engineer

Former race car driver, Tom Wallace takes the helm as the new Corvette Chief of Engineering

Dateline: 11-5-20 – During Corvette’s early years, as a result of his racing at Le Mans, Zora Arkus-Duntov got the lion’s share of media attention. Credit also goes to three-time Indy 500 winner and automotive engineer Mauri Rose who helped develop the first Corvette chassis on the shop floor as they were being hand-built in Flint, Michigan. Rose and Duntov were friends but Rose wasn’t impressed with Duntov’s driving and used to say, “Zora couldn’t drive a nail with a hammer.” But by the late 1950s, Duntov was the face of Corvette racing.

We have pointed out that Duntov’s successor, Dave McLellan owned and appreciated sports cars and that Dave Hill raced a Lotus Super 7 in SCCA competition. What most Corvette fans don’t know is that while Tom Wallace had the shortest tenure of all of the Corvette chiefs (2 years and 10 months), he raced SCCA A/Sedan class cars in the early ‘70s and was professionally racing IMSA cars in the late ‘70s and early ‘80s. Wallace raced the 24 Hours of Daytona, the 12 Hours of Sebring, and won at Talladega. Why didn’t Wallace continue professional racing? Because it was interfering with his day job at Buick.

Wallace was a typical car-crazy kid growing up in the ‘50s and ‘60s. His Dad had an Opel Cadet that he kept running with help from a parts donor car. Before Wallace had his driver’s license, he bought a ’55 Chevy, replaced the stock 3-speed transmission with a 4-speed, rebuilt the engine, and added dual quads. After getting his license, he had the quickest car in high school and rarely lost a drag race.

Thanks to his excellent grades, Wallace went to General Motors Institute after securing a sponsor to become an automotive engineer. Wallace wanted to get into Chevrolet, but there were no openings, so he opted for Buick. One of his first projects was the design and development of the Exhaust Gas Recirculation (EGR) valve that siphons off a small amount of exhaust gas and returns it back into the intake charge. This results in lower nitrogen oxide (NOx) emissions.

Wallace graduated in 1970 just as the muscle car era peaked and was ending. Performance was being phased out and emissions, fuel mileage, and safety were Detroit’s new mission. Lloyd Reuss, Buick’s chief engineer was aware of Wallace’s interest in racing and asked him to research adding a turbocharger to their old V6 engine. Wallace’s reported that it could be done and Reuss instructed him to install a turbo on a Buick Century to pace the 1976 Indy 500. As part of a three-man team, Wallace was the engineman, the others did the suspension and brakes. In total Wallace produced six Indy 500 pace cars. Wallace’s turbo Buick V6 project eventually lead to the Buick Grand National, Turbo-T, T-Type, and the frightful GNX series cars that ran from 1982 to 1987.

Wallace enjoyed engineering and racing, but he knew that if he was to rise up in the ranks in GM, he needed to curtail his racing and get more education. In the early ‘80s Wallace got his Masters in Business at Stanford and over the next twenty years had a variety of chief positions with Buick, Olds, Cadillac, and Chevrolet groups. When GM started its Vehicle Line Engineer (VLE) management structure, managers were in charge of everything from design-to-production, sales, and service. Wallace ran the Trail Blazer, Envoy, Bravada, Saab 9-7, Colorado/Canyon pickups, and the Hummer H3 lines.

Dave Hill was the VLE of Performance Car that included Corvette, Cadillac XLR, Saturn Sky, Pontiac Solstice, Opel GT. One day during a group vehicle-program review meeting with Bob Lutz; Wallace heard Hill outlining the Z06 with 505-horsepower and a dry-sump oil system, he said to himself, “What the!” Wallace said to Lutz, “My goodness, this is unbelievable. Do you know what Dave is about to do?” Wallace said that some of the VLEs had no idea what Hill was talking about. When Wallace expressed real concern about selling 505-horsepower cars to novice customers, it was explained to him that only select dealers get Z06s. These dealers understand performance and coach customers to have respect for the car and help get them into a driver’s school.

Late in 2005 Wallace got the surprise of his career. After a VLE meeting, Lutz told Wallace that Hill was retiring on January 1 and that he wanted him to take the position of VLE and Chief Engineer for Corvette. Wallace was stunned and fully aware that he was inheriting a great team with Tadge Juechter as his lead engineer. But unforeseen circumstances would make this a short-lived position – only two years and ten months.

When Wallace took over the Corvette program, the C6 ZR1 was a concept on paper and was deemed too expensive. Wallace and his team worked out the cost, got the project approved, and started the ZR1’s development. It wasn’t long before rumors of a super Vette surfaced with names such as “Blue Devil” and “SS”. Then someone inside GM posted a photo of a development ZR1 as it was being shipped to Germany for testing. The Corvette world knew for sure when a cell phone video was posted of a disguised Corvette with the unmistakable sound of a supercharged engine. WOW, a supercharged Corvette!

When the ZR1 was released to the press in late 2007, Wallace explained, “We want to push the technology envelope into the supercar realm. We want a Corvette that can take on any production car in the world.” While Corvette fans were feasting, GM was heading for bankruptcy. Corvettes had a history of platforms running too long. Hill said that the planned six-year duration might even be too long. Wallace and his team started work on the C7 in April 2006. As things got worse for GM, it was discovered that the only full-size trucks and Corvettes were moneymakers. Regardless, future plans had to be stopped.

In October Lutz informed Wallace that the board of directors did not approve funding for the C7, he would have to proceed with paint and decals for the foreseeable future. Also, to preserve cash, top-level executives were offered early retirement to reduce headcount. For a car guy/racer, babysitting the Corvette was not how Wallace wanted to end his GM career, so he retired on November 1, 2008.

Photo Credit: www.CorvetteBlogger.com

Wallace didn’t get to do as much with the Corvette as he wanted, but he did several things that made a difference. He knew that it would be very beneficial for his engineers to get track training at the National Corvette Museum’s and to talk with customers about what they like, don’t like, and want for future Corvettes. As Wallace had expressed concerns over selling powerful Corvettes, included in the price of the ZR1 was high-performance driver training. And with his racing background, Wallace was the perfect lead engineer to work with Pratt & Miller on issues with their C6.R cars. This intense relationship caused more racecar to be built into the C7. While Wallace wasn’t able to usher in the C7, his efforts set up the program for the capable hands of Tadge Juechter. – Scott

PS – Be sure to catch all 5 parts of my Corvette Chiefs Series

Corvette Chiefs, Pt. 1 – Zora Arkus-Duntov

Corvette Chiefs, Pt.2 – Dave McLellan

Corvette Chiefs, Pt. 3 – Dave Hill

Corvette Chiefs, Pt. 4 – Tom Wallace

Corvette Chiefs, Pt. 5 – Tadge Juechter

 


 

A Salute to the Amazing ZR-1 and ZR1 Corvette

Dateline: 12.6.11

A Salute to Chevy’s “King of the Hill” the ZR-1 and ZR1

(Check out the BIG versions of the ZR1 Tribute print on the right, at the bottom of this post.)

When the ZR-1 Corvette first arrived in 1970 almost the only people that noticed were the Corvette racers and a few magazine gearheads. That’s because RPO ZR1 was the latest of Zora Arkus-Duntov’s “racer kits.” The ZR-1 was an LT-1 version of the ‘67-’69 L-88 racer kit package that Duntov deliberately designed to be a “track-only” car. There were no creature comforts – no radio and even no heater. The suspension was completely heavy duty and could jar your molars out on normal streets. Plus, the lack of a proper radiator shroud made driving the car in stop-and-go traffic an engine killer.

Consequently, from ‘70 to ‘72, only 53 official ZR-1 Corvettes were built. After the end of ‘72, the Corvette market began to move away from performance to a boulevard car. It took 18 years for the ZR-1 to surface again, but this time as a world-class Grand Touring road machine. Packed to the gills with creature comforts and powered by the all-aluminum, double-overhead-cam, Lotus-designed, Mercury marine-built LT-5 engine, this was no “off raod use only” machine. When the clamshell hood of the press preview ‘89 ZR-1 was opened, jaws dropped and grizzled automotive journalists gasped at the sight of the LT-5.

The Corvette team was a very different group from the late ‘60s. One thing Dave McLellan and his team were determined to do was make sure their new world-class Vette was NOT launched prematurely. The team intended to release the ZR-1 as an ‘89 Corvette, but smartly chose to postpone production a year to make sure the car was right. The only downside to the entire enterprise was a small matter of the BIG price. At $27,016 on top of the $31,979 base price, this wasn’t just an engine option. No, no. everything from the flywheel back to the tires was bigger, more stout, and heavy duty. And rather than just add flares to the fenders to cover the oversized tires (ala the C3 L-88 fender flares), the entire back end of the car was widened. Unfortunately, the change was only noticeable to those with a keen Corvette eye or if the ZR-1 was next to a regular C4 Corvette. But, we won’t pick, as it was a magnificent car. Continue reading “A Salute to the Amazing ZR-1 and ZR1 Corvette”

Vette Videos: C6 ZR1 Corvette “SMOKIN!!!” TV Commercial

Dateline: 8.13.11
Is 638-horsepower from the factory HOT ENOUGH for ya?

So far we have heard no news at all as to the possibility of a C7 ZR1 Corvette. But, then again, we’re not getting any news about the C7 base Corvette either. Corvette engine developers and engineers have proven that the computer controlled emission devices on the ZR1’s LS9 engine are more than up to making sure high horsepower and emissions standards can be maintained. And with the winds of change swirling around Detroit and rumors of much smaller Corvette engines, turbo versions, hybrid setups, etc… it’s anyone’s guess as to what will be under the fiberglass or carbon fiber hood of the next generation Corvette.

Depending on where Detroit goes in the next few years, the ZR1 may be the hottest factory Vette for a long time. We'll see!

In the mean time, the ZR1 is still with us, at least for another two years. Who knows, Continue reading “Vette Videos: C6 ZR1 Corvette “SMOKIN!!!” TV Commercial”

Corvette Book Review: “Legendary Corvettes”

Corvette Legends Randy leffingwell

“Vettes Made Famous On The Track And Screen” by Randy Leffingwell & Photography by Dave Wendt

Let me get this out of the way, up front. I love this book! For Corvette lovers, like us, this book is a visual delight. Veteran automotive writer, Randy Leffingwell and seasoned photographer, Dave Wendt have teamed up to present a visual and literary trip through 18 unique Corvettes.

As you page through the book, keep in mind that the images you see have not been PhotoShopped – they are “photographs.” Now “novel.” Wendt is a master at lighting. This is photographic “art.”

Keep in mind that our criteria for this book is, “Vettes Made Famous On Track And Screen.” After I had that settled in my head, everything was fine. Our visual trip begins at the beginning – the 1953 Corvette. The images draw out the inherent beauty of the car. It was just too good-looking to give up on, by a few very important people. That’s where Leffingwell’s prose lays out the stories. Continue reading “Corvette Book Review: “Legendary Corvettes””