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Thread: New Diff 3.91 OPEN - Now the fun begins!

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  1. #1
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,843

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    Glad it worked out pretty smooth. When I swapped to a taller gear in the 530 the mileage went up 2 in the city and stayed the same hwy even though the engine revs a bit higher.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  2. #2
    Join Date
    Mar 2007
    Location
    Liverpool UK
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    1,536

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    Quote Originally Posted by 632 Regal View Post
    Glad it worked out pretty smooth. When I swapped to a taller gear in the 530 the mileage went up 2 in the city and stayed the same hwy even though the engine revs a bit higher.
    Now that is good to hear. I felt this might be the case as the engine is not working as hard to get the thing going...

    I'm going to try to analyse the MPG/acceleration/revs differences in detail over the next week or so, see how it pans out.
    1995 XJR: 4.0L S/charged straight 6 Auto

    What... It's not broken??? I can still fix it

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