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E34 M5 Discussion 1988-1995 Sedan and Touring


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Old 12th July 2012, 16:20   #1
JelmerE28
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RPM vs Speed
My E28 with S38B38, Getrag 280 and (I think) 3.91 diff does only 71,3 mph (@ GPS) in 5th gear at 3500 rpm.

Is this normal for an 3.8 M5? My tires a tad smaller in diameter (225/45-17 vs 235/45-17 for the M5)

What are your stock E34 M5 cruise speeds at certain rpms?
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Old 12th July 2012, 19:15   #2
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My 3.8 has 255/40/17 PS2 rears. As I remember at 70mph I'm doing 3000 rpm. On the upper end I can recall around 163 mph at 7000 rpm (I quickly add not in this country!)



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Old 12th July 2012, 20:42   #3
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Mine hits the rev limiter at 155mph already! I think I have a shorter diff (4.10).
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