IROC-Z Camaro: Chevrolet's 1980s Road Course Legend

 

IROC-Z Camaro History 

Back in 1984, Chevrolet wanted to produce a Camaro that would closely mimic the Camaros that were being used to race in the IROC (International Race of Championship) Racing Series. 

The good idea was pushed forward when Chevrolet signed on to be the official sponsor of the IROC Racing Series. This move gave Chevrolet permission to use the name IROC on their Camaros, which in turn spawn the birth of the road course king, "IROC-Z Camaro".

The IROC-Z Start

Starting in 1985, the new IROC-Z became available to the public and would go on to be produced as a Camaro performance option until 1990. The turn of the decade brought up the end of the licensing agreement with the IROC Racing Series. Chevrolet had other plans for the future of the Camaro and decided not to renew the sponsorship with the race series and dropped the IROC-Z from production.

For those years that the IROC-Z was in production, they became such a staple in the Camaro lineup, Chevrolet would drop the Z-28 from production for the years of '88, '89, and '90. The IROC-Z would become your primary choice if you wanted a performance-based Camaro. 

When Chevrolet halted production for the IROC-Z because of their licensing agreement end with the IROC Racing Series, they also had to drop the IROC-Z nameplate. After a few years on hiatus, the Z28 performance package was brought back for 1991.  

The IROC-Z: A Better Camaro

What mostly stood out about the IROC-Z is its 5.7-liter (350-cu.-in.) Tune-Port Injection (TPI) engine which was bigger than its sister motor, the 5.0. 

The 350 TPI came with a four-speed 700R4 automatic transmission and a special suspension package better known as the 1LE package that included: 

• 4 wheel disk brakes
• 3.42 positraction rear-end 
• An aluminum driveshaft
• Large 12" front rotors
• Aluminum calipers
• Engine oil cooler
• Gas tank baffles 
• Larger anti-roll bars
• Specially valved Delco-Bilstein shocks
• Larger diameter sway bars
• Steering/frame brace known as the "wonder bar" and
• More aggressive springs that lowed the Camaro by .05 inches.

The special Camaro would also get 16-inch rims, an upgrade from the smaller 15-inch rims, more aggressive side-skirts for the body kit, large IROC-Z decals on the doors, and special trim.

Although throughout the years the IROC-Z was released from the factory with a few different trim options and setups like t-tops, controvertible, and even a 5-speed transmission, the most common trim options are mentioned above. 

Important? It should be noted that although the 5.7-liter IROC-Z Camaros are the most common and sought-after Camaros of all the IROCs, if you're looking to buy an '85, you can find them with the bigger 5.7-liter engines, but they will not be original. In '85, they only came available with the smaller 5.0-liter engine.

Unfortunately for the IROC-Z, it was produced in a time when power was not a priority, and the horsepower and torque numbers it boasted in the mid-to-late '80s sucked in comparison to today's sports cars. But the reason why the IROC-Z is a collector car and will stay a collector car is not because of its power outputs, but because of its connection to the IROC Racing Series and its road course capabilities. 

Shopping for an IROC-Z Camaro

If you're searching for an IROC-Z, you must be careful for there are a lot of impostors out there. A lot of the exterior IROC-Z options such as the vented hood, front spoiler, and ground effects options were available for order on regular Camaros, Z28s, and can be bought as aftermarket pieces. So check the VIN numbers and do some research via. some reputable sources before you go laying down big money.

If you already own one, I would suggest saving it and passing it on to someone in your family, because in time they will be just as valuable as a Camaro from the Muscle Car era.

2022 Corvette IMSA Special Edition Stingray

2022 Corvette IMSA Special Edition

The 2022 Corvettes are pretty cool as they are, but to pay tribute to the success Chevrolet and Corvette had with the C8.R in the 2021 IMSA inaugural racing season, a special edition Corvette will be available in 2022. Corvette's C8.R and the Corvette team did exceptionally well for Chevrolet last year, winning the manufacturers', drivers', and team titles in the IMSA sportscar championship series. 

IMSA Corvette Appearance Package

The 2022 Corvette Stingray ISMA GLM Championship Edition sports/supercar comes with a unique appearance package and all the small mechanical upgrades the Corvette will receive for 2022. Unforntelty, at least I was led to believe, that Corvette was not just going to settle on the C8 the way it was, but from what we know now, not many changes are going to find their way to the 2022 Corvette. Hopefully, mid-way through 2022, talks will start getting fired up about some of the major changes that have been discussed in the past e.i. eRay LT2 AWD hybrid and single and twin-turbocharged versions of the Vette.

The IMSA Corvette Stingray appearance package will include two color combinations: Accelerate Yellow with Gray corvette racing graphics and Hypersonic Gray with yellow accents. These special Corvettes will be outfitted with the larger rear wing and mirrors crafted in Carbon Flash.

They will also include black rocker guards and splash guards, yellow brake calipers, and Black Trident wheels with "Jake" logos on the center cap. On the interior, you get a C8.R Special Edition numbered plaque along with an interior design that follows your chosen exterior look. Yellow seat belts will come with Corvette's GT2 seats, or you can opt for the competition bucket seats for the all-around racing feel and vibe. 

 

All special edition Corvettes will be sold as a 3LT model with the Z51 package, which is Corvette's highest trim. You will also get a special edition indoor car cover that matches your special edition color scheme. Expect to pay an extra $6,595 for the package along with the extra cost of the 3LT Z51 package. There will only be an official 1,000 models made, so expect for the price tag to be high and the car to be rare to find. 

What's New for the 2022 Corvette Stingray

As mentioned above, not much will be changing. Even the horsepower and torque rating will be staying the same for the 6.2-liter LT1 (490 hp and 495 torque), which is still a good number. 

According to Chief Engineer Josh Holder, the Corvette injection system will be operating at a higher pressure which will help the 6.2-liter small-block get better emissions and better stability at idle RPMs. There have also been some other changes to the enhanced "Active Fuel Management" range. 

The Corvette will now deactivate cylinders over a broader range of RPMs and in lower gears. Although the hope would be to get better EPA ratings, there has been nothing noted yet.   

The few last changes will be aerodynamic changes that probably won't be too noticeable. So if you were wondering if the C8 was going to be another long stretch of similar-looking Corvette's year-after-year like previous generations, that's the way it's looking.  

The Chevrolet El Camino: The Most Successful Car/Truck

 

The El Camino History 

El Camino is a Spanish name that stands for "The Road". The name and the idea was first introduced to the public by Cadillac in 1954 at the Detroit Motorama. Even though it received some serious attention, the idea never set sail, and Cadillac would eventually drop the project after about one year.

Ford saw the potential and came out with its own version of a car/truck called the Ranchero in 1957. The Ranchero saw such a good response from its consumers, like in true competitive fashion, Chevrolet was ready to get in on the game.  

The El Camino by Generations 

1959-1960 El Camino 

(First-Generation) 

In 1959, Chevrolet relaunched Caddilac's El Camino idea based on the Chevy Impala Bel Air's frame and styling. But again, the El Camino still became a hard project to get on its feet, so the El Camino got the ax again after 1960.

Experts believe the reason for the poor sales was that Ford downsized the Ranchero from a Ford Fairlane-based frame to a Ford Falcon-based frame. This ultimately made the Ranchero smaller and more desirable to drive. This left buyers heading toward Ford for the truck/car vehicle and forced Chevy to put the El Camino project back on the shelf.

Engine

235 cu.-in. I6

283 cu.-in. V8

348 cu.-in. V8

Transmission

3-speed manual

4-speed manual

2-speed Powerglide automatic

1964-1967 El Camino 

(Second Generation)

During the El Camino's hiatus, GM was taking notes on Ford's progress with the Ranchero. After a few years, Chevrolet decided they had the El Camino style and design right in the sweet spot for a relaunch in 1964. With a smaller frame and style based on the Chevelle, the El Camino started seeing good enough sales to keep it in Chevrolet's lineup for a while, a long while. The El Camino stayed on Chevrolet's roster for more than two decades with 1987 being the last year for the odd but successful Spanish-named car/truck.

One of the things that helped keep the second-generation El Camino selling so well was the engine performance. Since it was based on a Chevelle, the El Camino came available with almost all the same upgrades that were available on the Chevelle, including the 327 cu.-in. motor in the first two years, then a beefed-up 396 cu.-in., starting in 1966. 

Engine

194 cu.-in. I6

230 cu.-in. I6

250 cu.-in. I6

283 cu.-in. Small-Block V8

326 cu.-in. Small-Block V8

396 cu.-in. Big-Block

Transmission

3-speed manual

4-speed manual
2-speed Powerglide automatic

1968-1972 El Camino 

(Thrid-Generation)

In this generation, the El Camino would see some major performance upgrades to keep up with the muscle era. This would include an SS396 which had an actual displacement of 402 cubic inches (6.6 liters). The next engine up was an even more powerful LS6 454 cu.-in. that put out 450 horsepower and 500 lb.-ft. of torque. Yes, this beast was powerful and could run the 1/4 mile in the upper 13-second range. 

Then 1971 came around, and the EPA (Environmental Protection Agency) came down hard on all of the automotive companies. Mandated lower-octane unleaded fuel pushed for a reduction in engine compression, and GM's A.I.R. system (smog pump) was added to control tailpipe emissions. No more big horsepower outputs for the El Camino, and even worse for gear heads, most other cars suffered the same fate. 

Most all the engines in the El Camino lineup suffered about a 150-200 horsepower decrease. This was a sad time for muscle cars (the end of an era). 

Engine

230 cu.-in. I6 

250 cu.-in. I6 

327 cu.-in. V8

307 cu.-in. V8

350 cu.-in. V8

369 cu.-in. V8

454 cu.-in. V8

Transmission

3-speed Manual

4-speed manual

2-speed Powerglidue auto.

3-speed Turbo-Hydramatic auto

1973-1977 El Camino 

(Forth-Generation)

This would be the largest and longest El Camino of all of the generations. The new redesign used the Chevelle bodylines and Chevrolet's station wagon chassis. This was without a doubt the most comfortable driving El Camino but was also the heaviest.  

The energy-absorbing hydraulic front bumper systems early in the generation years were truly undesirable. Moving forward it seemed that not just Chevrolet, but all of the automotive companies were in the business of making fuel-efficient cars that were both safe for the people and the environment. Through these years, the El Camino would receive a lot of upgrades including suspension upgrades, standard front disc brakes, interior redesigns, a lift in ground clearance, High Energy Ignition (High Energy Ignition), some headlight rearrangements, and more.  

Powerplant

Engine

250 cu.-in. I6

307 cu.-in. V8

350 cu.-in. V8

400 cu.-in. V8

454 cu.-in. V8

Transmission 

3-speed manual

4-speed manual

3-speed Turbo-Hydramatic auto

1978-1987 El Camino 

(Fifth-Generation)

For this new generation, the El Camino would see some different changes. The V6 Chevy and V6 Buick 90-degree engines would replace the inline-six cylinders. The 454 cu.-in. engine was dropped for an Oldisomblie sourced 350 cu.-in. diesel powerplant. You had a choice of four different trim models: Classic, Black Knight (1978) Royal Knight (1979–83), Conquista, and the SuperSport (SS). 

The 1983–87 El Camino SS was offered as a conversion (completed by Choo-Choo Customs Inc., of Chattanooga, Tennessee) to include the aerodynamic front-end similar to the Monte Carlo SS, but it did not receive the L69 engine package.

Moving on with the times, Chevrolet moved production to Mexico and added a 4.3-liter fuel-injected V6 as their base engine for 1985-1987. The El Camano ended production in '87. 

Engine

3.3 L (200 cu in) Chevrolet V6

3.8 L (229 cu in) Chevrolet V6

3.8 L (231 cu in) Buick V6

4.3 L (262 cu in) Chevrolet V6

4.4 L (267 cu in) Small Block V8

5.0 L (305 cu in) Small Block V8

5.7 L (350 cu in) Small Block V8

5.7 L (350 cu in) Oldsmobile deisel V8

Transmission

3-speed manual 

4-speed manual

3-speed Turbohydromatic automatic. 

28 Years of El Camino Existence 

It sounds odd that a car/truck would make it through so many generations, but then again, look at the minivan. The El Camino may be out of production now, but it is not out of America's automobile history or memory.  

You'd be hard press to show up to a car show and not see at least a couple of these El Caminos, either in their stock form or customized for show or drag racing.