Original size tires on 1987 Civic Si?

Discussion in 'Civic' started by Tina Venne, Aug 9, 2003.

  1. Tina Venne

    Tina Venne Guest

    Can anyone tell me what the original size tires were from the factory
    on the 1987 Civic Si?

    If someone is good at math, can you tell me what the speed difference
    would be, as indicated on the speedometer, between this stock size and
    the currently installed P185-65-R15 at, say, 60mph?

    Also, where can one obtain the driven gear (or whatever it is called)
    that would correct the speedometer for the above current tire size?

    Thanks a bunch.
    Tina Venne, Aug 9, 2003
  2. Tina Venne

    Randolph Guest

    I have the Honda service manual for the 1987 Civic (US model) and it
    confirms what the previous poster said. 175/70R13 82T to be precise.
    Randolph, Aug 9, 2003
  3. Tina Venne

    Dan Knaus Guest

    I believe the tire sizes given below are for the non-SI versions. I
    just went outside and looked at my '87 SI - the tires are 185/60R14s
    and I haven't changed sizes. My manual is in the garage, but again,
    the the non-SIs have 13 inch tires, the SI has 14 inch.

    Dan Knaus, Aug 12, 2003
  4. Tina Venne

    Randolph Guest

    The service manual specifies 175/70 R 13 82T for the 1500 Si hatch back.
    175/70 R 13 for the 1500 DX hatchback and 165/70 R 13 for the base 1300
    hatch. This is also what is listed on the web site of Goodyear for that
    car. Are you sure your car has the original tire size?
    Randolph, Aug 12, 2003
  5. Tina Venne

    Dan Knaus Guest

    Hmm, this gets interesting. I'm the only owner of this car. Just
    took a look at the data label on the driver's side door and 2 sizes
    are listed: The first is the 175/70 R13 and the second is the 185/60
    R14. Took a look at tirerack.com and it said 185/60 R14. Wondering
    now if the 14 inch was an option, not standard?

    Dan Knaus, Aug 14, 2003
  6. Tina Venne

    Uncle Mike Guest

    The Si came with the 14", the 13" with the DX.

    Uncle Mike, Aug 14, 2003
  7. Tina Venne

    David L Guest

    Dunno. I've never personally owned a Civic Si. I double checked
    tirerack.com again and I did the search under "Shop for Tires," selected
    "Honda" and "1987." Then selected "Civic Si Hatchback" which stated the OE
    was 175/70-13 for this car. However when I searched the CRX Si, it listed
    the 185/60-14 as you stated. The plot thickens!

    Haven't seen a reply from the OP (Tina) yet, but what does the sticker on
    the door indicate?
    Either way, go with the previously stated sizing method. It works.

    Good luck!
    David L, Aug 14, 2003
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