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Cadillac Catera and Cimarron Forum Discussion, tires in Past Cadillac Vehicle Discussion; can 17" tires fit the catera that isnt the sport model?...
  1. #1
    wyse18 is offline Cadillac Owners Member
    Automobile(s): 2000 catera base model
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    tires

    can 17" tires fit the catera that isnt the sport model?

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  3. #2
    JRomano is offline Cadillac Owners Fanatic
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    Re: tires

    Quote Originally Posted by wyse18 View Post
    can 17" tires fit the catera that isn't the sport model?
    yes http://ejelta.com/tiresize/index.htm...=17&maxdelta=2

  4. #3
    USEDCAT is offline Cadillac Owners Fanatic
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    Re: tires

    Quote Originally Posted by wyse18 View Post
    can 17" tires fit the catera that isnt the sport model?
    I also find the following very helpful and visually appealing including description of speed changes, etc., if it helps,

    http://www.miata.net/garage/tirecalcold.html

    Cheers

    PS: I think I posted the following from Cater 2000 User manual before,
    From 2000 Catera User Manual

    Inflation -- Tire Pressure

    The Tire-Loading Information label, which is located
    on the rear edge of the driver’s door, shows the correct
    inflation pressures for your tires when they’re cold.
    “Cold” means your vehicle has been sitting for at least
    three hours or driven no more than 1 mile (1.6 km).

    If you’ll be driving at speeds higher than 100 mph
    (160 km/h) where it is legal, raise the cold inflation
    pressure of each tire to 38 psi (260 kPa) for tire size
    P225/55R16 and to 39 psi (270 kPa) for tire size
    235/45R17.

  5. #4
    wyse18 is offline Cadillac Owners Member
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    Re: tires

    thanks. i appreciate it

  6. #5
    wyse18 is offline Cadillac Owners Member
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    Re: tires

    so the 17"s for the 2000 catera have to be 235/45R17

  7. #6
    USEDCAT is offline Cadillac Owners Fanatic
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    Re: tires

    Quote Originally Posted by wyse18 View Post
    so the 17"s for the 2000 catera have to be 235/45R17
    I think 245 /45R17 looks even a batter match. You need to be close as possible to actual speed and odometer accuracy I assume.

    Cheers.

  8. #7
    JRomano is offline Cadillac Owners Fanatic
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    Re: tires

    or 225/50/17 keep in mind the wheel width you're running and the wheels offset/backspacing, i found out the hard way that some wheels/tires will rub on the front struts if something is a bit off

  9. #8
    USEDCAT is offline Cadillac Owners Fanatic
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    Re: tires

    Quote Originally Posted by JRomano View Post
    or 225/50/17 keep in mind the wheel width you're running and the wheels offset/backspacing, i found out the hard way that some wheels/tires will rub on the front struts if something is a bit off
    That seems a good choice too but it will indicate marginally under speeding as you will be going a tad bit faster than what the speedo says.

    You will be doing 60.3 MPH when speedo says 60 MPH.

    Cheers.

  10. #9
    JRomano is offline Cadillac Owners Fanatic
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    Re: tires

    keep in mind most factory speedometers have a margin of error and I have found most to read about 2mph over when encountering police radar speed indicating trailers, YMMV

  11. #10
    USEDCAT is offline Cadillac Owners Fanatic
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    Re: tires

    Quote Originally Posted by JRomano View Post
    or 225/50/17 keep in mind the wheel width you're running and the wheels offset/backspacing, i found out the hard way that some wheels/tires will rub on the front struts if something is a bit off
    JRomano if I were doing it I will follow your advice of 225/50/17.


  12. #11
    JRomano is offline Cadillac Owners Fanatic
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    Re: tires

    Stock size is 225/55/16, I ran all seasons for a year in that size, then ran 205/60/16 for snow tires, then 225/45/18 summer, wore those out and now I'm on 215/45/18s.
    Its all in the ballpark range of spec, also know that one company's 225 will run narrower/wider than other company's, and even within one company's lineup depending on the tire model the widths could be different.
    When a tire is new it has generally 10/32nds of tread depth, and depending on your idea of "wet" pavement can really be run down to about 2/32nds tread depth.
    So in tire tread wear alone that's 8/32nds on "each" side of the tire that wears off, totaling a half inch of potential wear down on the overall diameter, so a fully worn out 225/55/16 will throw the speedo off exactly 1mph
    I used to be a real stickler for keeping as close to overall diameter and now I'll run just about anything that fits and looks right on the car and comes within 2-3mph of what my speedo claims.

  13. #12
    MaesMV6 is offline Cadillac Owners Member
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    Re: tires

    Quote Originally Posted by JRomano View Post
    keep in mind most factory speedometers have a margin of error and I have found most to read about 2mph over when encountering police radar speed indicating trailers, YMMV
    sorry for being off topic, but my i work on radar systems for a living. the reason its higher is because of something called the doppler effect. if your moving toward a stationary object which is taking your speed from radar it will show your moving faster then what you really are. if your moving away from a stationary object it will show your speed as being slower then what your actually moving.

    just thought i'd teach a lesson in radar today =)

  14. #13
    USEDCAT is offline Cadillac Owners Fanatic
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    Re: tires

    Quote Originally Posted by MaesMV6 View Post
    sorry for being off topic, but my i work on radar systems for a living. the reason its higher is because of something called the doppler effect. if your moving toward a stationary object which is taking your speed from radar it will show your moving faster then what you really are. if your moving away from a stationary object it will show your speed as being slower then what your actually moving.

    just thought i'd teach a lesson in radar today =)
    Just a chuckle. For me, I have B.Sc. and M. Sc. in Electrical Engineering with major in Digital Communications including wireless. I right away understand what you are saying

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