Some of Andial’s major sports car racing accomplishments include:
- The 24-Hours of Daytona saw ANDIAL’s engine in the winner’s circle from 1983 through 1987 and again in 1989. A note of interest: In 1987, the first through fifth place finishers were in ANDIAL cars.
- The IMSA Supercar Series Championship in 1992.
- IMSA-GT Championships in 83, 85, 86, and 87. North American GT-1 Endurance Cup Championship in 1994 and GTS-2 in 1996.
- SCCA World Challenge – USA in 1994.
- Class wins Pikes Peak in 94, 96, 97, and 98.
The list of drivers that campaigned ANDIAL-powered cars include: Al Holbert, the Andrettis, the Unsers, A.J. Foyt, Derek Bell, Rolf Stommelen, J. Rutherford, Danny Ongais, the Whittington brothers, Bob Wollek, Harald Grohs, Hurley Haywood, Hans Stuck, Jim Busby, Pete Halsmer, Jeff Zwart, and many more.
Parallel to their racing ventures and utilizing the experience racing provided, ANDIAL developed their street related performance applications
In 2004, with their ex-partner Alwin officially retired from PMNA, Arnold and Dieter decided to slow down but not retire entirely. They moved to a smaller place in Fountain Valley from Santa Ana gave up the daily Porsche service business in favor of concentrating on their specialties, including special engine projects, maintaining prior special engines, restoring race or other special cars and continued supply of parts that customers had come to rely on in the past three decades. That business continues to operate today.
Source: Porsche