Production Automotive Services, Inc. (commonly referred to as PAS) and formally known as Prototype Automotive Services, was a specialty vehicle manufacturer which produced the 1989 Pontiac Turbo Trans Am, the 1991 GMC Syclone, the 1992 GMC Sonoma GT and the 1992 - 1993

GMC Typhoon The GMC Typhoon is a high-performance Sport utility vehicle, SUV, produced from 1992 until 1993 by GMC (marque), GMC. The Typhoon was based on the 1991 GMC Syclone. Description Like the GMC Syclone, the Typhoon is powered by a 4.3 L LB4 V6 engine ...

. These were the only projects PAS created with

General Motors General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. The company is most known for owning and manufacturing f ...

before merging and becoming TDM Technologies in Livonia, MI and Wheel to Wheel in Troy, MI.

History

1989 marked the 20th anniversary for Pontiac's flagship ponycar, the Trans Am, and Bill Owen at Pontiac Motor Division saw to it that it was a special one. Pontiac engineers originally wanted to use an all-aluminum V-8 engine in the TTA. That plan never materialized, so the 3.8L Intercooled Buick Turbo V-6 engine from the Buick Grand National was chosen and equipped with cylinder heads from the existing 3800 Series I V-6, because of their increased clearance at the strut towers and superior flow. The contract to outfit the TTA engine was given to PAS Engineering in Van Nuys, CA and the work took place in its 40,000-square-foot City of Industry facility. After the engines were completed, they were shipped back to GM, installed in the cars and then returned to PAS for testing and quality-control checks, before being offered to the public for sale. Jeff Beitzel, who was the president of PAS, had his personal 20th Anniversary TTA (one of the 5 pilots cars) sent to

American Specialty Cars American Specialty Cars (commonly known as ASC or American Sunroof Company) was an automobile supplier of highly engineered and designed roof systems, body systems and other specialty-vehicle systems for the world’s automakers. The company was ...

(ASC) and made into a convertible. PAS also made other performance changes, which included the 1LE brake package originally engineered for Trans Am racecars. The setup featured vented 12-inch front and 11.7-inch rear rotors to ensure fade-free performance. The aluminum dual-piston front and single-piston rear calipers were borrowed from the

Chevrolet Corvette The Chevrolet Corvette is a line of American two-door, two-seater sports cars manufactured and marketed by General Motors under the Chevrolet marque since 1953. Throughout eight generations, indicated sequentially as C1 to C8, the Corvette is not ...

. Throughout the project, Scott Kelly, who was the Engineering Liaison of PAS, was instrumental in the development and production of the TTA. Scott served as the go-between for PAS and

throughout the program and was responsible for all of the Trans Ams used during the month of May 1989, including the three actual pace cars. After the TTA program, Scott worked as the Service and Warranty Administrator for the TTA, GMC Syclone, Typhoon, Sonoma GT, and natural-gas-powered trucks, that PAS produced until 1994.

Products

* Pontiac Turbo Trans Am (1989): 1,555 units * GMC Syclone (1991): 2,998 units * GMC Sonoma GT (1992): 806 units * GMC Typhoon (1992): 2,497 units * GMC Typhoon (1993): 2,200 units

References

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External links

Syclone, Typhoon, Sonoma GT Database & History'89 Turbo Trans Am History & Specs1992 GMC Sonoma GT Information
Defunct motor vehicle manufacturers of the United States Coachbuilders of the United States GMC (automobile) Pontiac (automobile) Motor vehicles manufactured in the United States