Setting your tire pressures affects your transmission shifting

Discussion in 'General Motoring' started by Yousuf Khan, Aug 24, 2011.

  1. Yousuf Khan

    Yousuf Khan Guest

    I have a 2000 OBW with 5MT. Ever since I've had this car, I've never
    really had a consistent smooth shift from it. I've owned it for 8 years
    and shifting has remained jerky since the beginning. It's not a matter
    of how smoothly you can operate the clutch, I've tried various different
    clutch release and engagement speeds and I still often get a jerk when
    going into gear. It's especially noticeable in the lower gears, when
    going from a dead stop into first, from first into second.

    I just got used to it over the years until recently I played with the
    tire pressures a little. I put 34 psi in the fronts, and 32 psi in the
    rears. I did this for other reasons, but I was surprised to find that
    the shifting had smoothed out completely! The car wouldn't jerk around
    no matter how sloppily I used the clutch! This worked for about 2-3
    weeks, until I started to notice the car was jerking again from time to
    time. I checked the tire pressures, and sure enough the air pressures
    had gone down in all of them by different amounts. So I filled them up
    again to their previous settings, and shifting was again smooth.

    I put in more in the front than the rear because the engine puts more
    weight on the fronts.

    Yousuf Khan
     
    Yousuf Khan, Aug 24, 2011
    #1
    Yourawahoo likes this.
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  2. Yousuf Khan

    AD Guest

    Thanks Yousuf, i was scratching my head asking myself why 32psi was
    speced by FHI for front and
    28 for the rear of the 93 legacy.
    You might have just found the answer.

    I wonder how the reduction in displacement and increase in weight of
    the bare bones impreza affected the
    shifting. Any reviews with the relevant reference anyone run into?
     
    AD, Aug 24, 2011
    #2
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  3. Yousuf Khan

    Yousuf Khan Guest

    I don't know if this will work for the automatic tranny, because the AWD
    systems are totally different between the manual and auto Subies of the
    same model. The manual Subies have a full-time AWD with a limited-slip
    diff in the center and in the rear. The auto Subies have an on-demand AWD.

    Yousuf Khan
     
    Yousuf Khan, Aug 24, 2011
    #3
  4. Yousuf Khan

    Hachiroku Guest


    Hey, are you a Dell factory rep?!?!

    Damn! A+ rating for the last QTR! Good job!
     
    Hachiroku, Aug 28, 2011
    #4
  5. Yousuf Khan

    AD Guest

    OT Hmm, I remember last time I talked to dell they begged me not to
    return vostro
    even though I have explained that no amount of discounting would fix
    the crap buttons on the trackpad. They finally agreed for a refund.

    My issue with dell is not service though, servers (rackmounted and
    tower based) are
    just fine but all laptops including the business line leave something
    (a lot in fact)
    to be desired.

    This is so unlike subaru that does not have crap in the US lineup. JDM
    cars are another
    story I'm sure. It seems that japs export mostl;y the middle of the
    gaussian curve:
    total 2 cylinder crap and exra fancy models remain domestic. Just look
    at the evo IX wagon
    for example.
     
    AD, Aug 29, 2011
    #5
  6. Yousuf Khan

    hachiroku Guest

    No comment... ;)

    Yeah, I would love to have a Kei from anybody, but we can't get them.
    Would serve my needs quite well.

    That's why Toyota and Nissan and Honda came up with Lexus, Infiniti and
    Acura, so they could sell the domestic models at prices to justify
    importing them.
     
    hachiroku, Aug 29, 2011
    #6
  7. I've often felt FHI should split their brands/products like
    Honda,Nissan and Toyota did.. Put the Tribeca, the Outback, an
    'upscaled' Forester(maybe) and the Legacy sedan under the brand
    'Legacy', put the WRXes, the OBS and Forester under the 'Subaru' or
    Impreza brand - then bring over a coupla Kei cars or similar small/
    affordable compacts - maybe one electric or hybrid - and sell under
    the brand 'Fuji' or something(kinda like Toyota did with Scion).

    (however, I think I read FHI is gonna stop making Kei in Japan so.....)
     
    1 Lucky Texan, Aug 29, 2011
    #7
  8. Yousuf Khan

    Yousuf Khan Guest

    No, why do I look like one?

    Yousuf Khan
     
    Yousuf Khan, Aug 29, 2011
    #8
  9. Yousuf Khan

    Yousuf Khan Guest

    Pretty high actually, somewhat common name in some parts of the world.
    I'm not saying it's anything approaching the John Smith or the Mohammad
    levels, but it's fairly common.

    List of most popular given names - Wikipedia, the free encyclopedia
    http://en.wikipedia.org/wiki/List_of_most_popular_given_names

    Yousuf Khan
     
    Yousuf Khan, Aug 30, 2011
    #9
  10. Yousuf Khan

    hachiroku Guest

    One of the techs in the "South" area is Yousuf Khan.

    What are the odds?
     
    hachiroku, Aug 30, 2011
    #10
  11. Yousuf Khan

    hachiroku Guest


    Yeah, they are. There are a few around here, not legal for over the road
    use but a couple of the colleges use them for on-campus vehicles. I think
    they're Suzukis. Cushman sells them under the Cushman brand name but you
    can get them from dealers, just can't license them.

    There are some older modles that are "grandfathered" in because they were
    imported and registered before any laws were passed. You can register the
    old 360 van because when they were new they were titled and registered.
    Would love to get one of those.

    I'd also like to get a Divco and "toyotaize" it! ;)

    Be a great marketing tool for my cover band...
     
    hachiroku, Aug 30, 2011
    #11
  12. Yousuf Khan

    hachiroku Guest

    Interesting.

    What's more interesting is that Bruce and Sheila don't even show up for
    Australia...

    But Matilda does! ;)
     
    hachiroku, Aug 30, 2011
    #12
  13. Yousuf Khan

    AD Guest

    It would be a hard sell in the US considering how good Fit (Jazz) is.
    Now as ever with better sound insulation to put some distance between
    the driver
    and the buzzy 1.5 I4.

    As far as A class goes you now get fiat 500 from the italians: again,
    japs
    will be hard pressed to sell bare bones kei against premium A class.
    And then there is the little wonder called MX-5 that's been around for
    like forever.
    but I'm too claustrophobic for anything smaller than jazz or mazda 2.

    Do be glad you do not get daewoo matiz in the states :-]
     
    AD, Aug 31, 2011
    #13
  14. Yousuf Khan

    hachiroku Guest


    I never equated the Fit with the Jazz. OK.

    The Fiat is a cool looking car, just like the one from the 50's/60's.
    The Mazda 2 is also a good little car, as is that new Hyundai they should
    be coming out with any second now. THAT is cool!

    I also like the Honda hatch with the gas engine with electric assist.
    However, it;s gone from $17,900 to $23,000 here!!!
     
    hachiroku, Sep 1, 2011
    #14
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