F55/F56 Cruising rpm
Cruising rpm
Hello all. The new MINI is growing on me so I decided to learn a bit more about it.
What is the cruising rpm in the manual Cooper S? One thing that I dislike about my manual R56 S is the very high cruising rpm (3k rpm @ 73mph).
What is the cruising rpm in the manual Cooper S? One thing that I dislike about my manual R56 S is the very high cruising rpm (3k rpm @ 73mph).
Gear Ratios x final drive
Cooper
6-speed manual transmission (FD = 3.421)
1 12.367
2 6.678
3 4.245
4 3.315
5 2.757
6 2.337
R 12.103
6-speed automatic transmission (FD = 3.683)
1 16.422
2 9.237
3 5.727
4 4.206
5 3.134
6 2.475
R 11.730
Cooper S
6-speed manual transmission (FD = 3.588)
1 14.076
2 7.664
3 4.998
4 3.904
5 3.200
6 2.713
R 12.694
6-speed automatic transmission (FD = 3.502)
1 15.615
2 8.783
3 5.446
4 3.999
5 2.980
6 2.353
R 11.154
Tire circumference in inches
175/65R15 75.262
195/55R16 76.795
205/45R17 76.266
205/40R18 76.833
W=Rpm
V=mph
c=circumference in inches
r=gear ratio
W=(1056*V*r)/c
(1056 * 60mph * 2.713) / 76.795 = 2238rpm
Cooper
6-speed manual transmission (FD = 3.421)
1 12.367
2 6.678
3 4.245
4 3.315
5 2.757
6 2.337
R 12.103
6-speed automatic transmission (FD = 3.683)
1 16.422
2 9.237
3 5.727
4 4.206
5 3.134
6 2.475
R 11.730
Cooper S
6-speed manual transmission (FD = 3.588)
1 14.076
2 7.664
3 4.998
4 3.904
5 3.200
6 2.713
R 12.694
6-speed automatic transmission (FD = 3.502)
1 15.615
2 8.783
3 5.446
4 3.999
5 2.980
6 2.353
R 11.154
Tire circumference in inches
175/65R15 75.262
195/55R16 76.795
205/45R17 76.266
205/40R18 76.833
W=Rpm
V=mph
c=circumference in inches
r=gear ratio
W=(1056*V*r)/c
(1056 * 60mph * 2.713) / 76.795 = 2238rpm
Last edited by hammerhands; Aug 22, 2014 at 02:22 PM.
Great, thanks for the reply.
So they fitted longer 6th gear in the auto again... Same speed, same tire, the auto would be 1940rpm vs 2240rpm in the manual. MINI did this in R56 as well...
So they fitted longer 6th gear in the auto again... Same speed, same tire, the auto would be 1940rpm vs 2240rpm in the manual. MINI did this in R56 as well...
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