I just got a sunbird with a auto tranny in it and at 75 its at 3k rpms??? Is that right?? It seems pretty high? What is everyone elses car running at 75 mph, rpm wise?? Whats yer avg mpg at that rpm also?? Thanks a lot!!
94 3.1 sunbird rpms at 75?????
- Thread starter gbird94
- Start date
92 Sunbird LE
Well-known member
Ok ,here you go:
1994 Sunbird 3.1V6 TH125C auto trans
2.84 FWD gear ratio
25" tall tire ( P185/75/14 stock tire)
75 Miles Per Hour
Equals 2863 RPM ......so you are over by
137 RPM.
Mileage is 17 City / 26 Highway
Doug in P.R.
1994 Sunbird 3.1V6 TH125C auto trans
2.84 FWD gear ratio
25" tall tire ( P185/75/14 stock tire)
75 Miles Per Hour
Equals 2863 RPM ......so you are over by
137 RPM.
Mileage is 17 City / 26 Highway
Doug in P.R.
Last edited:
92 Sunbird LE
Well-known member
Go to a taller tire, I have 205/70/14 on mine , about a half a inch bigger in diameter.
92 Sunbird 2.0 Liter TH125C (Lock up convertor trans)
Doug in P.R.
92 Sunbird 2.0 Liter TH125C (Lock up convertor trans)
Doug in P.R.