Engine RPM?

V

veryhuman

Member
 Toronto
Sorry for the noobie question, but I just realized I never test drove any other Z4 before I bought mine 2.5i, my question is, for a 2.5i engine, what is the normal rpm on the highway going at 60 mph? What about 80 mph? Assuming your on gear 5.

Thanks a bunch.
 
Off the top of my head I know that 75 mph is about 3500 rpm on my 2.5. I think 60 is about 2500. I can check on this for ya.
 
Ok...checked on my way to the airport this morning. From what I remember ...this is what they were. (On my 2003 2.5i manual)

60mph=2800rpm (or 2750)
75mph=3500rpm (the speed I always go..1mph under the radar camera speed)
80mph=3750rpm (or 3800)

The 60 and 80 mph speeds had similar rpm (except for the 1st digit) so I may have switched them in my head.
NOTE...These speed are from my GPS which is 2mph slower than my speedometer. So my speedometer read 62, 77, and 82 mph respectively.

Definitely would like the 6th gear (overdrive gear with .85 ratio, 5th is 1.00) for these speeds.
 
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