Factory-prepped quarter-mile racer goodness, Bowtie style

The Chevrolet Camaro has been around for five decades now, with the latest sixth-generation model making its debut just last year. Throughout the history of the nameplate, performance enthusiasts have made the most of the Camaro’s muscle-bound attitude by maxing it out down the quarter mile, and now, the Bowtie is honoring this tradition with the Camaro SS Drag Race Development Program. Created as a means to develop performance parts for the 2016-and-above Camaro, the program looks poised to unleash a slew of 10-second racers across the country, with a preview provided at this year’s SEMA Show in Las Vegas.

“From sportsman classes to the pro ranks, Camaro has been one of the most popular cars ever to launch down the drag strip. For 50 years Chevrolet has supported Camaro drag racers and these new SEMA vehicles demonstrate our commitment to the sport, with parts development and the advancement of the historic COPO Camaro program,” said Jim Campbell, GM U.S. vice president of Performance Vehicles and Motorsports.

In case you were unaware, the COPO Camaros have their roots in the factory-approved Central Office Production Order drag racers that flew under the Chevy banner in the late ‘60s.

Chevy is showcasing the modern-day build with a tester that’s meant to mirror “stair-step enhancements” that racers can make to their own production Camaro SS models.

The new program builds on Chevy’s latest successes in the sport, with Camaro drivers collecting wins in seven of the eight NHRA Stock classes, plus a win at the 2016 Chevrolet Performance U.S. Nationals in the Super Stock class. What’s more, COPO Camaro racer Jeff Lopez managed to clinch the title of Stock Eliminator champion.

Continue reading for the full story.

Why it matters

At its core, Chevy’s development Camaro is essentially a production-based sixth-generation model with the usual lineup of drag racer go-faster parts. From the factory, the SS trim level is equipped with the 6.2-liter all-aluminum LT1 V-8, producing 455 horsepower and 455 pound-feet of torque at the rear wheels.

While certainly impressive straight out of the box, there’s a whole lot left on the table if you know where to look. To help it fly down the 1320 with a little more punch, Chevy added more power with a new cam and head package, plus a new intake and exhaust, which bumped output up to 530 ponies total. Chevy says that figure jumps to 600 horsepower when supplemented by a power adder (nitrous, for example).

But like any other form of motorsport, drag racing isn’t just about blistering times – it’s about setting those time consistently, something Chevy knows all too well.

“More than simply achieving quick ETs in the Camaro, we are exploring the supporting components that help the car to go quicker with great durability. We’ve tested stronger axles and chassis components aimed at improving launch and traction attributes,” said Mark Dickens, director of Performance Variants, Parts and Motorsports Engineering, adding, “We worked this car just as hard as any serious racer would. We made pass after pass, pushing it harder, and were amazed at the capability and durability that came straight off the assembly line.”

But like any other form of motorsport, drag racing isn’t just about blistering times – it’s about setting those time consistently, something Chevy knows all too center.

Further upgrades include a higher-stall torque converter, with a 30-percent higher stall speed, up to 4,200 rpm. Paired with a custom tune for the transmission, the result is improved 60-foot times. As a side note, Chevy actually decided to utilize the production eight-speed automatic gearbox, complete with paddle shifters, which speaks rather highly of the unit’s capability.

Upgrades to the drivetrain include the half-shafts and the prop shaft from the sixth-generation ZL1, while Chevy dug a bit deeper into the parts bin to source the upgraded 250 mm 3.73-geared rear-axle from the fifth-gen ZL1.

In back, the development racer got a small brake kit with downsized rotors to fit under the 16-inch, slick-shod drag racing wheels, which replace the stock 20-inch rollers that come from the factory.

According to Chevy, the test car has seen over 100 passes at the hands of the various engineers responsible for its creation, including runs using slick tires, DOT-approved tires, and several different drivetrain set-ups.

So far, the best run recorded was 1.425 seconds for the 60-foot time, 6.764 seconds at 100.85 mph for the eighth mile, and 10.685 seconds at 125.73 mph for the quarter mile. As a reference, the factory-spec 2016 Camaro SS does the quarter in the low-12-second range at around 115 mph.

That’s a pretty impressive improvement, but Chevy says the concept is still under development, hence the swirly camouflaged exterior. “As we continue to develop the car, we’ll be listening intently to customers’ reactions to it and what they believe would help them the most on the drag strip,” Mark Dickens said. “This is only the beginning.”

Press Release

For 50 years, the Camaro and the quarter-mile have stuck together like a drag slick on a well-prepped starting line, and Chevrolet is pushing that winning legacy forward with the new Camaro SS Drag Race Development Program and the 2017 COPO Camaro.

The Camaro SS Drag Race Development Program explores the quarter-mile capability of the Gen Six Camaro with concept parts designed to support 10-second elapsed times in a production-based model. The COPO Camaro offers the first look at the factory-built race car program for 2017.

“From sportsman classes to the pro ranks, Camaro has been one of the most popular cars ever to launch down the drag strip,” said Jim Campbell, GM U.S. vice president of Performance Vehicles and Motorsports. “For 50 years Chevrolet has supported Camaro drag racers and these new SEMA vehicles demonstrate our commitment to the sport, with parts development and the advancement of the historic COPO Camaro program.”

That commitment has helped put Camaro drivers in the winner’s circle, including seven class wins out of eight NHRA Stock classes and a Super Stock class win at the 2016 Chevrolet Performance U.S. Nationals in Indianapolis. COPO Camaro racer Jeff Lopez was the Stock Eliminator champion.

Drag Race Development
The Camaro SS Drag Race Development Program was created to develop performance parts for 2016+ Camaro models. A test vehicle was built to mimic the typical stair-step enhancements many amateur racers make with their production Camaro SS models, including swapping the differential for a numerically higher ratio and adding horsepower-building components such as a cam-and-heads package to push the SS’s LT1 engine to more than 530 horsepower — and about 600 horsepower with a power adder.

“More than simply achieving quick ETs in the Camaro, we are exploring the supporting components that help the car to go quicker with great durability,” said Mark Dickens, director, Performance Variants, Parts and Motorsports Engineering. “We’ve tested stronger axles and chassis components aimed at improving launch and traction attributes.

Chevrolet Launches Camaro SS Drag Race Development Program High Resolution Exterior
- image 693636

Engineers have made more than 100 passes down the quarter-mile with the development car, including the evaluation of DOT-approved racing and slick tires and a variety of drivetrain combinations.

The engineering team also tested a higher-stall torque converter for greater launch capability, increasing the stall speed to 4,200 rpm with the LT1 engine. That’s approximately 30 percent higher than the stock converter. Along with a custom transmission calibration, the prototype converter allowed the car to launch harder, which improved the 60-foot time significantly and thereby improved the quarter-mile elapsed time.

The best performance to date includes:

60-foot time of 1.425 seconds
Eighth-mile time of 6.764 seconds at 100.85 mph
Quarter-mile time of 10.685 seconds at 125.73 mph

Consistency in the performance tests came in large part from the Camaro SS’ production eight-speed paddle-shift automatic transmission, which fired off quick, immediate upshifts.

“We worked this car just as hard as any serious racer would,” said Dickens. “We made pass after pass, pushing it harder, and were amazed at the capability and durability that came straight off the assembly line.”

To support the greater horsepower and channel it to the ground durably, the engineers borrowed some heavy-duty, proven parts from the Gen 6 Camaro ZL1 including the half-shafts and prop shaft and the beefier Gen 5 ZL1 and Chevrolet Performance driveline upgrade with a 250mm, 3.73-geared rear-axle center section. They nicknamed it “Gravedigger,” because they haven’t been able to break it. The parts might be included in a range of Gen Six Camaro drag-racing parts Chevrolet is evaluating.

Chevrolet Launches Camaro SS Drag Race Development Program High Resolution Exterior
- image 693635

Additionally, the test car was fitted with Chevrolet Performance air induction and exhaust systems, as well as a “small” brake system that features small-diameter brake rotors that fit inside the test car’s 16-inch rear racing wheels and slicks.

While the production Camaro SS features 20-inch wheels, optimal traction on the drag strip is achieved with racing slicks that feature taller sidewalls. They wrinkle slightly at launch as the slicks bite the starting line, reducing the chance for traction-killing tire spin. Smaller-diameter racing wheels typically don’t fit over large-diameter production brake rotors.

“The Camaro SS Drag Race Development concept is a work in progress, but Chevrolet is serious about developing parts and packages tailored for drag racers,” said Dickens. “As we continue to develop the car, we’ll be listening intently to customers’ reactions to it and what they believe would help them the most on the drag strip. This is only the beginning.”

Like other Chevrolet development vehicles, the Drag Race Development concept wears a camouflaged exterior. There is, however, no disguising its performance capability when it’s lined up at the Christmas tree.

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