ISM fielded cars in the IRL from 1997 to 1999. In 1998, Jeff Ward finished 6th in IRL driver points and won the pole at Phoenix in an ISM car and the team fielded three cars in the 1998 Indianapolis 500. However, the team was only able to run part-time in 1999 and shut down in July of that year. The IRL team used G-Force chassis and Oldsmobile engines.