You know how there was no 1983 Corvette, and then the C4 finally came out in 1984, and it had this terrible twin-throttle-body fuel-injection system? Of course you do. Anyway, C4 Corvettes are worth enough these days that they’re not common sights in self-service wrecking yards, and those that I do find have been picked pretty clean.. Shops that specialize in Corvettes intercept most basket-case examples before they get to these yards, but I found four C4s all together at a Southern California yard last month. Let’s check out a well-stripped example of the first of the good-handling Corvettes. (Read More…)
Chevrolet used the Consumer Electronics Show in Las Vegas to introduce what it says is an industry first for the 2015 Corvette, a factory equipped Performance Data Recorder that integrates video, audio and motorsport inspired telemetry recording to improve driver technique and lap times. Tadge Juechter, Corvette chief engineer, said in a statement, “The Performance Data Recorder combines the ability to record and share drive videos with the power of a professional-level motorsports telemetry system. Drivers can easily record and share their experiences driving down the Tail of the Dragon or lapping Road Atlanta. In addition, with the included telemetry software, users can analyze their laps in incredible detail and find opportunities to improve their driving and lap times.” The PDR will be available when the 2015 Corvette goes on sale in the third quarter of 2014 and pricing will be announced closer to launch. (Read More…)
Okay, so it’s not The Christmas Story, but while trying to track down a since deleted summary of an upcoming Society of Automotive Engineers paper that leaked details of the 8 speed automatic transaxle that the 2015 Corvette will offer, I came across another SAE paper concerning the Corvette, this one published in 1961, titled The Corvette Story. In 1961, just 8 years after the first Corvettes went on sale, fiberglass bodied cars were still a new thing. Chevrolet engineer P.J. Passon’s paper for the SAE goes over the processes involved in making the Corvette bodies and then how the cars are assembled. He discusses the 1961 Corvette’s engineering features and explains why GM went with fiberglass instead of steel and also why mass-market Chevrolet was making and selling a sports car with limited market appeal. I’m sure that anyone with an interest in Corvettes and Corvette history will find it worthwhile, though it’s also a nice snapshot of advanced materials manufacturing circa 1961.
The Corvette Story
Chevrolet Engineering Center
Chevrolet Motor Division
BUILDING THE CORVETTE
In its brief life span of eight years, the Corvette has undergone rapid character development. It has built up a clientele all its own – demanding, but enthusiastic. Their attitude is contagious, and progress has come fast. I do not intend to cover the history of the Corvette this morning, except to say that its roadability has increased since 1953 in roughly the same proportion as its power-to-weight ratio or approximately two-to-one. (Read More…)
It’s not known if the leak was intentional or not, but the summary of a paper initially published by the Society of Automotive Engineers, since taken down from the SAE site, says that a new eight speed automatic transmission, given the designation 8L90 by General Motors, will be introduced in the 2015 Corvette, on sale next fall. The all-new 7th generation Corvette is currently offered with GM’s 6L80 six speed automatic and a seven speed manual gearbox. The 8L90 is described as being designed for rear-wheel-drive applications and variants will likely be used in GM’s fullsize pickups and in rear wheel drive Cadillacs.
The 8L90 has about the same overall dimensions as the 6L80, and is said to be able to handle up to 737 lb-ft of torque. It has a shorter first gear for better launch acceleration, an overall ratio spread of 7.0 and three speed sensors for better shift response. Other benefits are said to be better fuel economy, improved performance and a quieter car with improved NVH levels. (Read More…)
Just off the wires, we have word from Chevrolet that the 2015 Corvette Z06 will debut at NAIAS in January – the perfect time slot to steal some of the thunder from the Blue Oval, which will show the all-new Mustang and the F-150 to the public for the first time. Last year, Ford managed to upstage GM’s truck debuts with the surprise unveiling of the Atlas concept. Looks like GM is exacting some revenge.
Your humble E-I-C has already driven the new C7 in anger around a road course (of sorts), and I’ve also driven the current-gen GT500. The C7 is just brilliant, but at least four out of the five times I consider the issue I think I’d rather have the Mustang. Now we have the two cars going head-to-head where it really matters: the streets, yo.
The C4 Corvette is about the only Corvette that you can get for Camaro prices these days— even the 19-horsepower ’79s are worth good money now. Still, it’s pretty rare that I find a C4 at a cheap self-service wrecking yard; most of the examples I run across are melty-fiberglass burn victims, and the remainder have been picked clean. Here’s one of the latter type, discovered a few months back in Northern California. (Read More…)
General Motors announced that production of the 2014 Corvette Stingray Coupe has begun and that it has started shipping the all-new 7th generation Corvette to dealers from the Bowling Green, Kentucky facility where the sports cars are assembled.
In my role as Chief Justice of the 24 Hours of LeMons Supreme Court, prospective racers often ask me questions that go something like: “I have a (car type known to be fast and/or expensive) that I got for (credulity-strainingly cheap price) and I would like to race it in LeMons without getting hit with penalty laps. How can I do this?” In most cases, the car will turn out to be a BMW M3, Acura Integra GS-R, or C4 Corvette, and I tell the questioner to seek another type of car. Still, you can get genuinely horrible C4 Corvettes for LeMons-grade money, provided you sell off some trim parts and so on, and that’s just what happened with this bunch. No problem, I said, just drop in an engine that will anger the Corvette Jihad and all will be well (it helps that the Chief Perpetrator of LeMons racing was the owner and editor-in-chief of Corvette Magazine for years, and he can’t stand the Corvette Jihad). I suggested the Toyota 1UZ V8, as found in Lexus LS400s and SC400s, but perhaps there’s an engine that would raise the blood pressure of Corvette fanatics even higher. What engine would that be? (Read More…)
The first source of performance numbers for the new C7 Corvette is, not surprisingly in this day and age, GM itself. Some of the numbers are extremely useful, others less so.