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Which ratio diff for m50 w/ g240?

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    Which ratio diff for m50 w/ g240?

    Hey guys so I'm currently in the process of tearing down a m50tub25. Swap wise I pretty much understand everything and have a pretty good idea of what I need except for the rear diff. I'm mainly looking for pretty decent mpg as it is my daily. I know a 4.10 would make it fun but what kind of mpg would I get with a 3.73 would I be able to fit a 3.64?

    #2
    Originally posted by maxmonster View Post
    Hey guys so I'm currently in the process of tearing down a m50tub25. Swap wise I pretty much understand everything and have a pretty good idea of what I need except for the rear diff. I'm mainly looking for pretty decent mpg as it is my daily. I know a 4.10 would make it fun but what kind of mpg would I get with a 3.73 would I be able to fit a 3.64?
    This won't give you a MPG number but it will calculate the RPM you will be at.



    Hope that helps.
    E30: '91 318is - M52/ZF320 | Azev A 16X7.5 | H&R Race/Bilstein | Completely refreshed suspension/brakes/drivetrain


    An Associate/Bachelors degree is America's most overrated product

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      #3
      Originally posted by AllydNYC View Post
      This won't give you a MPG number but it will calculate the RPM you will be at.



      Hope that helps.
      Dude that helps so much thanks!

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        #4
        Originally posted by maxmonster View Post
        Dude that helps so much thanks!
        :) :up:
        E30: '91 318is - M52/ZF320 | Azev A 16X7.5 | H&R Race/Bilstein | Completely refreshed suspension/brakes/drivetrain


        An Associate/Bachelors degree is America's most overrated product

        Comment

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