000- 100 miles: 3500 rpm ( 60 mph)
100- 300 miles: 5000 rpm ( 85 mph)
300- 600 miles: 6000 rpm (100 mph)
600- 800 miles: 7000 rpm (115 mph)
800-1000 miles: 8000 rpm (135 mph)

                9000 rpm (150 mph)
              ~10000 rpm (170 mph)

[ mph is approximate speed in 6th gear  ]
[ at each rpm as measured by the gauge. ]