During the 1981 season the Porsche team faced a new challenge from the Lola T600. The Chevrolet-powered prototype with its better handling, driven by Englishman Brian Redman, quickly dominated the IMSA Championship. During the season, it became clear that only Junior could challenge for race victories, so Senior became JLP Racing's team manager, while Junior did the driving. Senior then only co-drove in the endurance races. Despite having the Lola, the Pauls won a rain-shortened race at Pocono in their Porsche 935 JLP-3. Using the same 935, Junior would go on to win the Daytona finale.