89 325is gear ratio?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Clark
    Member
    • Aug 2016
    • 80

    #1

    89 325is gear ratio?

    i have only owned this car for month or so, but unless I am really pushing the car (i.e. normal driving) I am in 3rd gear at around 35 mph. I am at around 3.5k revs at 10-15 mph in first gear. I was also told these cars really don't like to be rev'd passed 4500. Thoughts on that?
  • reelizmpro
    R3V OG
    • Dec 2003
    • 9464

    #2
    3.73 manual, 4.11 auto
    "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

    85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
    88 M3 - LACHSSILBER/SCHWARZE
    89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
    91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

    Comment

    • nando
      Moderator
      • Nov 2003
      • 34827

      #3
      Reelizmpro, 4.11 or 4.10? :p

      Don't rev past 4500? lol. Its not a 1970s pushrod V8 - tag the limiter all day long assuming its been maintained.
      Build thread

      Bimmerlabs

      Comment

      • reelizmpro
        R3V OG
        • Dec 2003
        • 9464

        #4
        whoops.
        "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

        85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
        88 M3 - LACHSSILBER/SCHWARZE
        89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
        91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

        Comment

        • djjerme
          R3V Elite
          • Sep 2010
          • 5082

          #5
          I do the same thing - it's the old GM gear sets are still stuck in my head for some reason.
          1991 325i MT2 Touring (JDM bro)
          2016 Ford Flex
          2011 Audi A3 - wife's other German car

          Comment

          • TobyB
            R3V Elite
            • Oct 2011
            • 5181

            #6
            4.10, 4.11, whatever it takes....

            t
            now, sometimes I just mess with people. It's more entertaining that way. george graves

            Comment

            • jlevie
              R3V OG
              • Nov 2006
              • 13530

              #7
              The M20b25 engine was designed for extended high speed operation. On the street the sweet spot is between about 4k and 5.5k. On the track you want to keep the engine above 5k for best performance. Extended operation at low rpm is bad for the engine as it will tend to gunk up due to lower temperatures.

              About the only time I let the engine speed drop below 4k on the street is when decelerating for a stop or yield.
              The car makes it possible, but the driver makes it happen.
              Jim Levie, Huntsville, AL

              Comment

              • Clark
                Member
                • Aug 2016
                • 80

                #8
                Originally posted by TobyB
                4.10, 4.11, whatever it takes....

                t
                +1 for mr mom reference

                Comment

                Working...