The supercharged version, often referred to as the SJ, was reputedly able to achieve in second gear and have a top speed of in third gear. Zero-to- times of around eight seconds and in 17 seconds were reported for the SJ in spite of the unsynchronized transmissions, at a time when even the best cars of the era were not likely to reach . Duesenbergs generally weighed around two and a half tons; up to three tons was not unusual, considering the wide array of custom coachwork available. The wheelbase was .