Development of electronics for GM auto racing | Wikipedia audio article
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Date: 2019-01-23

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SUMMARY
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In 1986, the GM Motorsports group asked Delco Electronics Corporation (December), a subsidiary of GM Hughes Electronics (headquarters – Kokomo, Indiana) if an electronic engine management system could be developed for the Chevy Indy V8 engines used in the CART open-wheel race series. Delco Electronics had been supplying all GM automobiles sold in the US with Engine Control Modules (ECMs) since 1981 when the US Clean Air Act required 3-way catalytic converters and controlled air-fuel ratios. The production ECMs were becoming more complex, and were becoming powertrain controllers controlling the transmission, spark timing, Idle speed, as well as air-fuel intake mixtures.
Delco Electronics used a small group of electronic designers and technicians at their facility in Goleta, California (near Santa Barbara, California) to do special assignable projects that were advanced or more state of the art. This facility was called Delco Systems Operations (formerly known as GM Defense Research Labs), a part of Delco Electronics Corporation at the time. Delco Systems Operations is the place where the Apollo Program's Lunar Rover Mobility Sub-system was developed and built, also the Apollo Program's guidance computers (Apollo PGNCS) and the Boeing 747 guidance computers (Delco Carousel IV) were developed and manufactured there. All Delco Electronics Motorsports products developed before 1994 were designed by this group. From 1994 to present, this activity is at Delco Electronics/Delphi in Kokomo, IN.
The first generation of engine management controller for CART racing used a modified production ECM, but performed poorly in the race car due to the harsh EMI (Electromagnetic Interference) environment. This version was never used in racing, but the experience gained enabled the engineers to design a more successful Generation 2 controller for use in the 1988 CART IndyCar World series.

Generation 2 controllers were used experimentally by Newman/Haas Racing in 1988 and the first win was in the Cleveland GP with Mario Andretti driving.
In 1989 Newman/Haas Racing, Team Penske, Galles Racing, and Patrick Racing teams used Delco Electronics Gen-2 controllers with the Ilmor Chevy Indy V8 engine. "By the start of the 1989 season, racing pundits recognized that Chevrolet, with its Ilmor Engineering engines  and Delco Electronics equipment, had assembled perhaps the most potent racing power in the history of the sport. As the season got under way in April, the pattern of winning began. Racing's elite drivers – Al Unser, Jr. and Senior, Emerson Fittipaldi, Rick Mears, Danny Sullivan, and Mario and Michael Andretti—were driving the best equipment in the world.
The results began to show early on. By October, Chevy engines with DE equipment had won 13 of the 15 IndyCar races.
When Emerson Fittipaldi crossed the finish line to win the 1989 Indianapolis 500, racing fans witnessed history being made. Fans thrilled to the neck-and-neck finish between Fittipaldi and Al Unser, Jr. who went spinning on lap 198 after brushing tires with Emmo, and the 43-year-old Brazilian had his first Indianapolis 500 win. Fittipaldi's victory—in a Chevrolet Indy V8 engine controlled by a Delco Electronics electronic engine control module (ECM) – was the first time in the 500's storied history that the engine of the winning vehicle was controlled by an electronic engine management system.For the 1990 season, all teams using the Ilmor Chevy Indy V8 were provided a redesigned Gen-3 system and it won 15 poles, 16 wins including the 1990 Indianapolis 500, with 17 races in the IndyCar World Series. To prove the system, the components were used with GM engines in the Trans-Am Racing series du ...