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Oct 1, 2020 · Buick GNX Specs - 3.8 Liter V6 Engine. The GNX was officially advertised at 276 horsepower and 360 ft-lbs of torque, but these numbers were soon found to be understated. Third-party testing revealed that the GNX's turbo V6 actually produced more than 300 horsepower and 400 ft-lbs of torque at 3,900rpm.
- Turbo Genesis
- The Black Arts
- A Big Last Hurrah
The turbo V-6 story goes all the way back to 1973 when Ken Baker, a young engineer in Buick's test lab (he would later lead General Motors' electric-vehicle program, then its research labs), started a Boy Scout Explorer program at the Buick engineering department. "I decided that a great project would be to turbocharge the recently revived V-6 with...
Other colors were considered, but the decision to make all GNs black gave them a sinister Darth Vader look. Don Hackworth, who replaced Reuss as Buick general manager in 1984, authorized a cool but controversial commercialshowing a Grand National rumbling menacingly through a city at night to a Buick-ized version of the George Thorogood and the Des...
The GNX happened because then–chief engineer Dave Sharpe, advanced concepts manager Mike Doble, and project engineer Chuck Jensen badly wanted it. "Tim Logsdon, my boss at the time, pulled me into Dave's office and said, 'We want to build a Grand National to end all Grand Nationals to celebrate the end of its run,' " Doble recalls. "The original nu...
The GNX is a limited-edition, rear-wheel-drive muscle car with a turbocharged and intercooled 3.8-liter V-6 that produces 300 horsepower. It has a new suspension, a new transmission, and a new body, but it also has a rattling and bouncing chassis and a mediocre handling.
- Contributing Editor
Sep 16, 2023 · Learn how the Buick Grand National and GNX muscle cars were developed from humble beginnings to influential icons. Discover the story behind the turbocharged V6 engine, the GNX model, and the legacy of this legendary American car.
- List Writer
Bid for the chance to own a 28K-Mile 1987 Buick Grand National GNX at auction with Bring a Trailer, the home of the best vintage and classic cars online. Lot #10,743.
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Sep 5, 2016 · Buick said one major reason for the 124-mph limit on the Grand National is the lack of V-rated P215/65R-15 tires. The GNX gets the proper rubber, Goodyear Gatorbacks measuring P245/50VR-16s for ...
A total of just 547 cars were built by Buick with a Grand National interior and then sent to American Specialty Cars (ASC) McLaren Performance Technologies for the GNX transformation. Improvements included a Garrett T3 turbocharger with ceramic impeller and GNX heat sheild, larger capacity intercooler, reprogrammed engine management and ...
