herky-jerky steering

Discussion in 'Modifications And Maintenance' started by djhamp, May 31, 2008.

  1. djhamp
    Offline

    djhamp Well-Known Member

    Messages:
    202
    Likes Received:
    42
    Trophy Points:
    213
    04 WRX all stock suspension (so far) 31k miles. I had the original 16" wheels and tires on and they were wearing even and it tracked perfect. I put the STI 17†BBS wheels and RE070 tires on with no other changes. Now it is hard to explain but its like torque steer, but not when accelerating. It will pull to one side or the other while going straight down the road just a foot or so, mostly slow to 45 MPH or so. Kind of a twitch, I have to hold the steering wheel tight to stop it from jumping over. It tracks fine at hiway speed, corners good and it doesn’t consistently pull to one side like it was alignment.
    Any ideas?
     
  2. carl
    Offline

    carl Well-Known Member

    Messages:
    7,981
    Likes Received:
    51
    Trophy Points:
    183
    Location:
    we gotta gooooo
    my re070's will do the same thing. if I'm on either of my hankook winter tires it's fine but when I have the re070's on I will often get a weird pull like that
     
  3. pbedroske
    Offline

    pbedroske Well-Known Member

    Messages:
    1,505
    Likes Received:
    90
    Trophy Points:
    233
    Location:
    Madisonville, TN (Tail of the Dragon)
    could be wheel offset and a combination of much more sticky tires on a lop-sided road. If the road you're driving on has any crown in the middle, or dips down were cars usually drive, then it will tend to pull up the hill. At least that's my experience with wider tires/wheels.
     
  4. Bullwinkle
    Offline

    Bullwinkle Well-Known Member

    Messages:
    3,580
    Likes Received:
    23
    Trophy Points:
    223
    Location:
    Saint Paul
    Yes, this. Stiffer and wider tires will tend to transfer more road imperfections to the drivers wheel. What you described is normal when adding tires with stiff sidewalls and a larger tread width.
     
  5. djhamp
    Offline

    djhamp Well-Known Member

    Messages:
    202
    Likes Received:
    42
    Trophy Points:
    213
    OK, thanks.
    So is this how a STI acts all the time, or do the other changes lessen the effect?
     
  6. webcrawlr
    Offline

    webcrawlr Well-Known Member

    Messages:
    1,361
    Likes Received:
    7
    Trophy Points:
    223
    Location:
    minneapolis
    It's not bad but it is noticeable. I'm sure it's just you needing to get used to it more then anything.
     
  7. TSTRBOY2004
    Offline

    TSTRBOY2004 Well-Known Member

    Messages:
    12,202
    Likes Received:
    403
    Trophy Points:
    393
    Gender:
    Male
    Location:
    Jordan, Minnesota, United States
    its called tracking.. ie like a railway track... the vehicle pics up any grooves, hollows etc in the surface and basically pulls itself into that track.. hence tracking...

    my wrx did it when I went to 19s... stock 16s no problem...

    the footprint of the car is wider so it picks up more are of the road hence it is more susceptable to the tracking effect...

    rarely but it can be true, sometimes going a different size rim and tire combo your alignment may not be as good as with the normal tires hence you are feeling the outcome too...
     
  8. FAB KING
    Offline

    FAB KING New Member

    Messages:
    85
    Likes Received:
    0
    Trophy Points:
    0
    Power steering belt slipping.