Corvette Report

History/News/Commentary from K. Scott Teeters


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1963 Grand Sport Corvette #005 Bench Racing With Corvette Engineer Bill Tower – VIDEO

Retired Corvette R&D engineer Bill Tower shares some of his insights into the background of the 1963 Grand Sport Program


 Keith Cornett, owner and editor of www.CorvetteBlogger.com has posted a real treat for Corvette race car fans on his YouTube channel. Keith and a group of Corvette friends spent some time at the Plant City, Florida home and personal car museum of retired Corvette engineer, Bill Tower. The star of the day was Bill’s 1963 Grand Sport #005 Corvette Coupe.

Bill is a living encyclopedia of Chevrolet and Corvette R&D experience and can keep an audience enthralled with insider stories about the early days of secret performance Corvette design and development. After attending General Motors Institute (GMI) in the early 1960s, Bill was hired by Chevrolet and landed a peach of a job (abet a LOT of work!) as a Development Engineer in the Corvette Design Group.
Tower worked with, and, or knew all of the key people within the world of Corvette R&D. Needless to say, Bill has stacks of stories, insights, and understandings Continue reading


The Run-Up to the C8 Corvette – The History of Mid-Engine Corvettes, Part 1 – 1960 CERV-I

The 57-Year Saga to the C8 Mid-Engine Corvette – The Old Mid-Engine Advantage & the 1960 CERV I

Dateline: 8.13.17 – Images: GM Archives & Mecum.com Introduction: Honestly, I didn’t believe it at first. It seemed like the floodlights from the debut of the C7 Corvette weren’t even cool yet when the automotive press and the Internet started chattering about the C8 Corvette being a mid-engine design. GM then added fuel to the fire when it was announced that they had trademarked the word “Zora” which ignited the speculation of a mid-engine Corvettes.

Part of Corvette-lore is that Zora Arkus-Duntov unsuccessfully tried many times to make the Corvette a mid-engine car, because in Zora’s day, it made perfect sense. The trouble was that Chevrolet was selling enough Corvettes to make the argument that, “the Corvette wasn’t broken, so don’t fit it!” The mid-engine Corvette concept lost its champion after Duntov retired in 1975. Dave McLellan’s team tried to recycle the body design of the mid-engine Four-Rotor Corvette, powered by a transverse-mounted small-block Chevy engine. That idea was actually “approved” briefly, but died a quick death. The mid-engine Corvette concept came back again as a development program that started with the Corvette Indy (a full-size static model), the Running Corvette Indy (a functional, drivable version), and finally the CERV III. This CERV III was an almost completely flushed out car, meaning that it “could” have been put into production, had GM not been embroiled in a financial crisis in the early ‘90s. The crisis was so bad that once again, the Corvette was on the chopping block!
Perhaps by sheer luck, the C5 plan eked through and turned out so good, that the mid-engine concept then seemed antiquated. Then suddenly, shortly after the C7 came out, the Mighty Wurlitzer Rumor Organ got cranked up and once again, we are in mid-engine mania. But does the mid-engine make sense? Is this what the Corvette community really wants? I’ve had my head plugged into the world of Corvettes since 1965 and followed all of the mid-engine Corvette concept cars. Most were engineering studies and not real, drivable, serviceable, safe cars – a few were close to production-ready.

The “story” of the Corvette is long and rich with colorful characters, loud and awesome machines, and two, BIG, “Could’a been so cool!” chapters – The Grand Sport and the mid-engine Corvette. While it was wonderful that Chevrolet used the Grand Sport moniker for one of the two special-edition 1996 C4 swan song Corvettes, and then as a separate model Corvette starting in 2010, these were not Duntov’s original vision. Continue reading


Z06 Corvette History, Pt 1 – The 1963 Z06 Racer Kit

For “Off Road” Use Only” was Chevy Code for RACING!

Dateline: 8.12.17 / Photos: WikiCommons, Illustrations by K. Scott Teeters – When I was a wee lad and would see the term, “For Off Road Use Only” I used to think, “Well who drives these cars in the dirt and grass?” What I didn’t understand was that the term is code for “RACING”! Beginning in 1957, Chevrolet’s new general manager, Ed Cole, made the command decision that he would let “customers” carry the Corvette racing mantle by offering Chevrolet-engineered parts, specifically designed for racing, available through the Chevrolet Parts Department.

For decades, Zora Arkus-Duntov has been credited for the implementation of the Corvette “Racer Kits” through the RPO (Regular Production Option) system. Zora was the face of the unofficial Corvette racing effort, but while researching C1 Corvette chassis design, I came across some interesting information in Karl Ludvigsen’s 2014 book, “CORVETTE: America’s Star Spangled Sports Car”. While Duntov was definitely the front man, Ed Cole also charged three-time Indy 500 winner and engineer, Mauri Rose with the development of the Corvette’s RPO parts program. So, the Corvette “Off Road” RPO effort guided by Le Mans racer and class winner, Duntov, AND Mauri Rose, the second man to win the Indy 500 three times (1941, 1947, and 1948)! Pretty cool, huh?

The Racer Kits weren’t a “secret” but unless customers were tuned into racing, most weren’t aware of this special program. In truth, since improvements in suspension and brakes were for racing, customers rarely used them for their street Corvettes. And typically racers used the expensive dual quad or Fuel Injection performance engines. The Racer Kit RPO option program enabled Corvette racers to be seriously competitive in SCCA racing such that by the end of the 1950s, Corvettes were a force to be reckoned with.

Engineer Maurice Olley designed the chassis and suspension of the first Corvette in 1952 and was considered to be the best suspension and chassis engineer in Detroit. It is essential to remember that the Corvette was NOT designed to be a racecar. Continue reading


The Story of the ZR-1 Corvette – C4 1990-1991 ZR-1 Corvette: Part 2 of 4

1990 ZR-1 Corvette – Finally! A Dedicated “Performance” Model Corvette

Dateline: 8.11.17 – Photos: GM Archives, Michael Beal, Illustrations: K. Scott Teeters – There’s an unwritten, unofficial “Law of the Jungle” that basically states, “If you are at the top of the food chain, you might not be there for long.” Such was the case for the C4 ZR-1 Corvette, for a little while. The C4 ZR-1 had a six-year production run with only 7,018 units produced. The ZR-1’s head-exploding price was the biggest limiting factor. The crummy economy in the early ‘90s didn’t help, and the much-rumored, all-new C5 no doubt was a drag on the ZR-1’s sales. And then there was also that pesky Dodge Viper. The 427 Cobra’s “Marley’s Ghost” was obvious, only this time disguised as a Dodge,
 
While armchair quarterbacking is easy and hindsight is 20/20, it is worth asking the question, why wasn’t such an awesome car more successful? “Timing” aside, the ZR-1’s aesthetics was a big factor. Stated simply: When viewed by itself, the C4 ZR-1s look like “regular” Corvettes. As an illustrator and stylist, I find it astonishing that Chevrolet would have done this, after all the engineering work that went into the ZR-1.   The body panels from the doors all the way back to the rear bumper cover, are unique to the ZR-1 – made wider to cover the widest tires put under a factory-built Corvette body, to that point. This means that the panels had to be redesigned. But rather than make them visually unique, the Corvette stylists were commanded to imitate the basic design of the standard Corvette, with one exception   Continue reading


The Motion Performance Experience – Part II

An Intimate Conversation With Martyn “Marty” L. Schorr and Joel “Mr. Motion” Rosen – Co-Founders of the Baldwin-Motion Supercars
Dateline: 8.10.17 / Photos:  Martyn L. Schorr & K. Scott Teeters’ Baldwin Motion Magazine Archives, Mecum Auctions, Dan McMichaels, & Google Maps Part one of my 2013 Far Out Radio conversation with Marty Schorr and Joel Rosen is in the July 2017 issue of Vette Vues can be enjoyed HERE. The year 2017 marks the 50th Anniversary of the Baldwin Motion Experience. Before we get into the rest of my 2013 conversation with Marty and Joel I’d like to share an anecdotal story about setting up the interview.

I have known Marty Schorr since 1976, just after he started “VETTE Quarterly”, the first Corvette-only, newsstand publication. I’ve had numerous conversations with Joel since around 2000 and always found him to be polite, but very reserved. When I asked Marty if he’s like to me on my radio program he said, “Sure, I’d be happy to.” When I asked Joel, he said, “Well, okay, but I don’t really have that much to say. How long is the interview?” I told him I did a one-hour show and without the commercials and bumper music, we have around 45 minutes to talk. He said, “Oh… I really don’t have that much to say, Scott. Really.” So, I assured him that if he ran out of things to say, Marty would fill in the rest. When the show started, Joel was reserved, as usual, but quickly loosen up. Before I knew it, he was seriously bench racing! As the host of the show I carefully watch the clock. When I said, “Well guys, we’re just about out of time, Joel said, “What! We just got started!” That’s just what happens when car guys get to bench racing.
Continue reading


From Spoilers to Active Aero, What WE Might See on the C7 ZR1 & Mid-Engine C8 Corvette

Published GM U.S. Patent Confirms New “Active” Aero System for the Corvette

Chevrolet has been extremely tight-lipped about the C7 ZR1, such that we have to look for other sources to glean info. Several months ago, published U.S. Patent documents indicated that GM is working on a new DOHC engine called the “LT5.” The conclusion is that the C7 ZR1 will have a double overhead cam version of the Z06’s LT4. Guestimations are that the LT5-powered ZR1 is pushing 750-horsepower – maybe more!
The April issue of Car and Driver showed artist renderings depicting the ZR1 sporting a very aggressive front splitter, big air intakes, an elaborate new hood, and a very angular rear wing with winglettes. Killer-looking stuff! But wait! There’s more!

On March 23, 2017 AutoGuide.com reported that on May 24, 2016, GM Global Technology Operations LLC filed with the US Patent & Trademark Office, Patent Application number 20170080770, titled, “VEHICLE RIDE-HEIGHT DETERMINATION FOR CONTROL OF VEHICLE AERODYNAMICS”. The “Abstract, Claims, and Description” are on the US Patent & Trademark Office – Patent Application Full Text and Image Database website. CLICK HERE to read the actual US Patent.
Continue reading


Corvette Timeline Tales: July 22 2004 – A Commemorative Edition Coupe is the last C5 – VIDEO

We just love “firsts & lasts” of any important performance car. Why? Because there are only ever two – the first and the last ones to roll off the assembly line.

Dateline: 7.22.17 – The First C1 and C2 Corvettes are not known, however, the Last C1, a black 1962 model sold for $150,000 at the 2014 Mecum Seattle Auction. We covered the Last Sting Ray, HERE. But today, we honor the “Last C5 Corvette”, which if you are looking to add an important Corvette to your stable of Vettes, just happens to be For Sale at BuyAVette.net! More about where you can pick up this piece of unique Corvette history for only, $1,000,000. (Karen, call the Credit Union!)

But for now, lets step into the CorvetteReport.com Time Machine and dial it back 13 years to 2004. To celebrate the success of the C5-R Corvettes winning Le Mans in ’01, ’02 and ‘03, Chevrolet dished up the 2004 Commemorative Edition option. This was an intense option to put into the production schedule because it was an open option on all three models of 2004 Corvettes – coupes, convertibles, and Z06s. On top of that, plant managers knew that as soon as the Last C5 was rolling through its journey of assembly, the production line was disassembled.
“Special Edition” Corvettes are always a tedious enterprise because all of the unique parts of a package have to be on hand. For Limited Edition Corvettes, at least it is known ahead of time that X-number of parts will be needed. However, with “open production” Special Edition Corvettes, the marketplace determines how much resources will be needed. From a sourcing and production position, it is a difficult task. Continue reading


An intimate conversation with Baldwin-Motion Phase-III Chevy Supercar Creators, Marty Schorr & Joel Rosen – Pt.1

Marty Schorr & Joel Rosen set the story straight and tell how the Baldwin-Motion Phase III Supercar Experience came together. (4 Videos)

Dateline: 7.19.17 – This interview appeared in the July 2017 issue of Vette Vues Magazine. Part 2 coming soon! – Marty Schorr is the former editor of CARS Magazine, the founder of Vette Magazine, and is the current editor and chief of CarGuyChrolicles.com, and PMPR, an automotive public relations form. Joel Rosen is the former owner of Motion Performance, on Long Island, in New York, and currently owns and runs Motion Models, a world-renowned, scale military model company in Florida.

In June 2013 I had the pleasure of interviewing Marty and Joel on my radio program, “Far Out Radio.” And now, you get to read the story from the guys that made it happen – Marty Schorr and Joel “Mr. Motion” Rosen. The guys created a legend and we’re still talking about it over 50 years later!

You can enjoy Part 2 of this conversation, HERE.

Scott: Marty, Joel, welcome to the program.

Marty & Joel: Scott, we’re here, we’re here! (laughs)

Scott: Great to have you here all the way from Florida. You never thought it would go this long, did ya? (laughs)

Joel: I never thought I’d live this long!

Marty: (Laughing) We never thought it would go past the 1970s!
Scott: Really? And here you are, my goodness. So, now that I have you both here, I’m curious before we get into the story, have you ever been on a radio program like this together, talking about what you have done?

Joel: Oh yes, we’ve done a few programs and some television shows. A number of television shows.

Marty: Yea, we’ve done it and we’re still not tired of each other, which is amazing. (laughs)

Joel: That’s what he says! (both guys laughing)

Scott: It sounds like you are both soul brothers to me. So, were you guys bench racing over some beers, or which one of you came up with the Baldwin-Motion idea first? How did this all get started? Continue reading


Corvette Timeline Tales: July 12, 1967 – The Last C2 Sting Ray Rolls Off the St. Louis Assembly Line – VIDEO

Photo: Proteam Corvette, Napoleon, Illinois, www.ProteamCorvette.com

The restored “Last Sting Ray” 1967 427/390 Corvette Coupe sells for a whopping, $660,000!

Dateline: 7-12-17 – Obviously there’s a first-and-last of every Corvette ever built. Unfortunately, there was no pause for celebration on July 12, 1967 when the very last C2 Corvette Sting Ray rolled off the St. Louis Assembly line. Not even a moment for a snap shot! Too bad! But forty years and three months later there was PLENTY of celebrating at the October 2007 Barrett-Jackson Scottsdale Auction.

Up until the last C3 rolled off the St. Louis assembly line, no one paid attention to these cars. The VIN number indicates that this was the last C2 Sting Ray to ever be built, Terry Michaelis, owner of ProTeam Corvette, in Napoleon, Illinois bought the rough Corvette Continue reading


1,000,000th Corvette Restoration in 10:08! VIDEO

It took seconds for the 1,000,000th Corvette to fall 40 feet and be nearly totally destroyed. I took almost a year to make the car GOOD AS NEW!

Dateline: 7.12.17 – The 1,000,000th Corvette, a white Convertible with a read interior (just like the first 1953 Corvette) rolled off the Bowling Green Assemble Line on July 2, 1992. Zora Arkus-Duntov was there to help celibate the event. Then, on February 9, 2014 the Ground under the National Corvette Museum’s Skydome display area opened up and swallowed 8 precious, special Corvettes.

The Corvettes that went into the 40-foot deep hole included;

1993 ZR-1 Spyder (on loan from General Motors) <– Beyond repair
2009 ZR1 “Blue Devil”
(on loan from General Motors)<–Restored in late 2014
1962 Black Corvette <– Restored in 2017
1984 PPG Pace Car <– Beyond repair
1992 White 1 Millionth Corvette <– Restored in 2015
1993 Ruby Red 40th Anniversary Corvette <– Beyond repair
2001 Mallett Hammer Z06 Corvette <– Beyond repair
2009 White 1.5 Millionth Corvette <– Beyond repair
Continue reading


The Corvette Funny Car Curse – Fact, or FICTION – Videos

For such a slick shape, how come so many Corvette funny cars ended in disaster?

Photo Credit: Hot Rod Archives

Dateline: 7-8-17 – No, this isn’t a whoo-whoo story that you might hear on Coast to Coast AM. A very interesting story popped up on HotRod.com, titled, “The Funny Car Corvette Curse“. Through the ’60s and ’70s funny car days, cars wearing a Corvette body shape, had unfortunate luck. There’s no metaphysical “curse”, it’s just aerodynamics. There are many variables.

But an honest look back clearly shows that the problem was with the front of the Corvette body. We were all looking at the curvaceous fender humps that looked a lot like Sophia Loren! How could it NOT be aerodynamic?

Photo Credit: Twitter – David Burge, https://twitter.com/iowahawkblog

In the zeal to produce fiberglass Corvette funny car bodies, builders made the body as “stock” as possible, stretching the car from the A-pillar forward. Continue reading


Corvette Timeline Tales: July 8, 1955 – One of Five 1954 Corvette Nomad Show Cars BURNED!

One of the five 1954 Corvette Nomad show cars that would today be worth over 1,000,000 was ordered destroyed by a bureaucrat!

Dateline: 7-8-17 – Norm Brown got a new job at Chevrolet, but little did he know that he’d be helping to send one of the five Corvette Nomad show cars built for the 1954 Motorama to the crusher. According to Mario van Ginnekin’s  ***  “Remarkable Corvettes” webpage, three of the five Nomads are known to still exist. “Why” one of the Nomads was sent to the crusher is not known. However, even though the ’56 Corvette with its updated body was about to go into production, the Corvette was not generally liked inside GM.

Photo: GM Archives

Also, by the end of the 1955 production cycle, Chevrolet had only sold 4,640 units from ’53 through ’55, which was NOTHING for a GM car. Continue reading


The Story of the C3, C4, C6, and C7 ZR-1/ZR1 Corvette: Part 1 of 4

From “Racer Kit,” to World Class Sports Car: Waiting for the C7 ZR1 & Looking Back at Past ZR1s

Dateline: 7/7/17 (This story was first published in the Sept 2016 issue of Vette Vues Magazine

Suddenly… its 2009 again! Is it “Déjà vu” all over again? It kind’a seems that way. In the summer of 2008, as the presidential election was heating up, Wall Street and the economy was shaking and quaking until finally in October 2008 the stock market crashed so badly that the candidates had to suspend their campaigns for a few days to vote on the big, bank bailout bill.

What followed was another deep recession that hammered the already stressed auto industry. 2009 was pretty ugly and the Mighty Wurlitzer, called “the Internet” was starting to get cranked up over C7 Generation Corvette speculation.
In 2007 Chevrolet sold 40,561 Corvettes – the best sales year since 1984 when 51,547 Corvettes were sold. Then in 2008 they sold 35,310 Corvettes. Yes, sales slipped, but that’s still an impressive sales figure. Then in 2009 the bottom fell out with only 16,956 Corvettes sold – that is a 48-percent drop! Continue reading


George Haddad’s Factory-Style 1969 427 ZL-1 Corvette

George Haddad’s Stunning 1969 ZL-1 427 Corvette – With some personal touches!

Dateline: 7.6.17 (VIDEOS AT THE BOTTOM!)  (This story was first published in the January 2016 issue of Vette Vues Magazine).

To understand the importance and uniqueness of George Haddad’s 1969 ZL-1 Corvette, we have to get into the “Vette Vues Time Machine” and go back to late 1968. The December 1968 issue of Hot Rod Magazine hit the newsstands like a thunder clap, with an obviously all-aluminum big-block 427 Corvette engine wearing bright yellow tube headers. It looked like Chevrolet finally had an ace trump card. The 427 ZL-1 was the ultimate “pie-in-the-sky” Corvette setup – big-block horsepower and torque – with the weight of an iron small-block! Duntov was a happy man because his dream of an all-aluminum engine for the Corvette went all the way back to the 1957 Q-Corvette concept that not only called for a fuel-injected all-aluminum small-block engine, but a trans-axle! (Sounds like a C5, doesn’t it?)

Duntov and his team tried casting SBC engines in aluminum, but there was a serious “strength of materials” issue that was never successfully worked out. The SBC was simply not strong enough when made in aluminum. A small batch of all-aluminum 377 engines were developed for the Grand Sport project that were powerful and light, but just wouldn’t hold together in competition. The prospect of an engine lighter than a regular SBC was deliciously tantalizing. So when the replacement for the 348/409/427 W-series (truck) engine, (the Mark IV) was being designed, an aluminum version was an obvious next step because the Mark IV was inherently a more stout structure.
The story of the production ZL-1 Corvettes is a long and complex one that we won’t try unraveling here, except to say that a batch of seven cars were built in early September 1969. The cars that “rolled off the St. Louis assembly line” were full-out RPO-L88 cars. The RPO-ZL-1 aluminum block was an option that was only available on an L88 engine. In other words, the ZL-1 was identical to the L88, except it had an aluminum block – making it 100-pounds lighter than the L88 Corvette, something that only racers would even notice. Continue reading


Rollie Walriven’s Daytona Blue 1963 Split-Window Coupe

Rollie Walriven, the single-owner of a Daytona Blue 1963 Split-Window Coupe

All of the photos in this post are by K. Scott Teeters

Dateline: 7.5.17 (This story was first published in the December 2015 issue of Vette Vues Magazine). We’ve all heard and perhaps have lived this story: Young man buys a Corvette, has a blast with the car, falls in love, marries, it’s time for a house, and the Vette is out’a here! “Life” often gets in the way of Corvettes. This is not one of those stories – no, just the opposite.

When Rollie Walriven took delivery of his brand new, Daytona Blue 1963 Corvette Coupe in November 1962, he was already a serious car guy. He had owned a daily driver 1959 4-speed Corvette with a mildly worked engine. He also had a basket case ’57 Corvette that he eventually built into a B/Production racecar that he started racing in 1964.Rollie was a typical post WW II car crazy kid. Of course his uncle’s dirt track racing in the Ohio region helped stoke Rollie’s interest in cars and racing. Rollie got his first car in high school, a 1939 Ford. Then he got a Model A Coupe that had been made into a hot rod. Continue reading

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