1968 Chevelle Malibu Non Ss on 2040-cars

Auto blog

AMC Trans Am Javelin SST, an ultra-rare underdog, is up for auction

Among the rarest of the American muscle cars that went racing in the early Seventies — cars including the Camaro Z/28 and the Boss 302 Mustang — the 1970 AMC Trans Am Javelin SST may be the most hard to find, and among the most valuable. Only 100 units of this unique Javelin were produced, and one of them is up for auction at the Mecum event in Dallas on September 20. The Trans Am Javelin was fashioned in a patriotic livery of tricolor paint — red, white and blue — and arrived after the American Motors Corporation had decided in 1968 to compete in the Trans Am racing series against Ford and General Motors. The company's chief driver, Mark Donohue, would dominate the 1971 season, taking seven wins in his Javelin AMX and that yearÂ’s SCCA Trans-Am Championship. AMC took the trophy with 82 points, well ahead of Ford's 61, Chevrolet's 17 and Pontiac's paltry 7. The example listed for auction came equipped with a 390-cubic-inch V-8 engine with 325 horsepower at 5,000 rpm and 420 pound-feet of torque, power steering and brakes, dual exhaust, BorgWarner four-speed manual transmission and Hurst competition shifter. Its “ram induction system” sealed a chamber around the air filter so that cool air from the functional hood scoop would be funneled into the intake. This JavÂ’s factory price was $3,995 — a mere $32,000 or so in today's money, though it was expensive by the standards of the time. The 100 Trans Ams were among 19,714 Javelin units built in 1970, so they started out rare, and today the surviving examples are highly collectible, if and when they come up for sale. No bid estimate is available yet. Related Video: Motorsports Chevrolet Ford Pontiac Auctions Automotive History Racing Vehicles Classics

More than 5,500 people tried to get the 2016 Chevy COPO Camaro

It's stating the obvious, but the 2016 Chevy COPO Camaro is popular with enthusiasts. So much so, it's attracted more than 5,500 hand raisers, General Motors said Tuesday at an event to show off the company's new Performance and Racing Center in Pontiac, MI. Unfortunately for drag racing fans, Chevy will only sell 69 of them, as it has for the last four years. The COPO Camaro can be configured for the NHRA Stock and Super Stock classes. It comes with racing-tuned chassis pieces and a solid rear axle. Power choices include 5.7-, 6.2- and 7.0-liter V8 engines. About half of COPO Camaro owners race their cars, and the rest keep them as collectibles. Jim Campbell, GM vice president of Performance Vehicles and Motorsports, wouldn't say if the COPO is a profitable venture, but noted the fire-breathing dragster raises the image of Chevy and Camaro. "It makes sense for our business from a number of perspectives," he said. The first COPO Camaro, a Courtney Force-styled racecar that was revealed in November at the SEMA Show in Las Vegas, hammered for $300,000 at the Barrett-Jackson auction last month. The proceeds went to the United Way. Campbell said low COPO production keeps interest high. Enthusiasts can also build their own COPOs by buying a rolling chassis and a crate motor, though those are not viewed by collectors in the same manner as GM factory-built creations. The COPO Camaro's V8 is one of several competition engines designed, built, and validated at the GM Performance and Racing Center. The Corvette C7R's 5.5-liter V8 and the Cadillac ATSV.R's 3.6-liter twin-turbo V6 are two more. Chevy calibrates and conducts dynamometer testing on its 2.2-liter V6 for IndyCar and performs design work on its NASCAR V8 at the facility, which existed previously at another location in Michigan. Related Video:

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).