Season Opener

Interested in Advertising on 780Tuners?  Please contact us

Page 1 of 3 123 LastLast
Results 1 to 9 of 25

Thread: MR2 Wheel & Tire Fitment

  1. #1
    Join Date
    Sep 2006
    Location
    Edmonton, Alberta, Canada
    Posts
    2,565

    Default MR2 Wheel & Tire Fitment

    Alright, we have a new member on board & the topic seems to have changed to this. Feel free to put anything of worth in this thread, what you've tried, what is common knowledge, what works & what doesn't.

    My SW20 wheel & tire specifications are as follows:

    F: 17x8, +35 w/ 215/35ZR17
    R: 17x9, +38 w/ 245/35ZR17

    Front wheels are "flush," give or take your definition (sometimes wanders) & the rear wheels are 3mm inset/"sunk".

    My personal feeling is that the stock wheels & tires for this car are undersized. I also believe that a good wheel starting point is 17x8 & 17x9 with close to the same offsets so that one can maintain a similar to stock setup as this car is meant to be staggered front to rear. This should provide a much nicer handling feel especially when coupled with a turbo 2 (which probably 95% or so of all models in Canada are).

    My flush chart I made for AW11 & SW20:


    Baseline alignment specifications for all MR2's:
    Last edited by huntsean; April 1st, 2012 at 10:33 AM. Reason: Baseline alignment specification chart added
    87 AW15.b MR2
    93 SW21.II MR2
    98 EL53 Tercel
    10 ZRE142 Corolla

  2. #2
    Join Date
    Aug 2009
    Location
    Edmonton, Alberta
    Posts
    3,060

    Default

    do these cars come factory with stagger or no?

  3. #3
    Join Date
    Feb 2008
    Location
    SW edmonton
    Posts
    5,302

    Default

    they came with a factory stagger. 19560/14 front, and 205/60/14 rear in the 90/91ish years, later it was a 195/55/15 front 225/50/15 rear.

    this is my experience wiht mr-2 fitment to date.

    Height:

    stock fronts are designed for a low 23 (23.2in is the stock 90/91ish sw20 tire diameter, 23.4 is the later years from what i remember) in diameter, the maximum height u can run is about a 24.5in tire before you start running into the suspension for height (spring sits above the tire). i would personally try to keep it under 24inches upfront for diameter as how wide the tire is, and where it sits with offset will also affect the maximum u can run for height.

    rear tire tolerances are more forgiving, and are designed for a 24in diameter tire (stock 90/91ish is a 23.8 diameter tire), but you can run a 25in diameter no problem (no real reason to run anything higher then that for diameter, as 25in diameter gives u the best tire choice, but there is still some room for forgiveness above 25in, just, i do not know how much as i have never tried it out. running a taller tire in the rear will affect your speedo, and gearing.

    tire width:

    widthwise, you're really handicapped by the front diameters being basically civic tires.

    fronts: unless you go with 17s, there is really no tire choice wider then a 205 in a 16in or smaller rim that'd i'd want to own. 17s running a 215/40/17 would be ideal for a 8in rim, and no worries there. thats really as wide as it gets safe for peace of mind thx to north american tire sizes which are pretty limited compared to overseas. i know 235 can be run

    rears: you can technically run up to a 275 on the rear i hear, never done it. 255/40/17 is fine with the right offset.


    stagger:

    my opinion is an optimal stagger is +20mm for a stock mr-2. on mine i mate a 205 front tire with a 225 rear and feel it has a perfect balance allowing me to side corners keeping all 4 tires on the edge of adhesion and never experiencing any sort of uncontrolable oversteer or understeer problems (the reason i run such skinny tires is i am running 16in rims, so that's the max width i can go for tires available. i stagger with 16x7 and 16x8 +35 rims also). if i had 17s it would be 215s upfront, and i'd run a 235 in the rear at a minimum. if i had 225s upfront, i'd run 245s in the rear. and so on.

    the more power you add, the more you may want to stagger the rear. running a 93.9+ jdm mr-2, u may want to run +30mm for stagger if you are running skinny front tires like a 205.

    rim sizing:

    17x8 front +35, and 17x9 + 35 you can not really go wrong with and there is zero reason imo to buy new rims skinnier then this in a 17in rim. used rims, i can understand. sub 17in sized rims, 7in wide front, 8in wide rear +25 to +35 (although i doubt u will find much under +35) is as wide as u need as you can't run wide enough tires to take advantage of anything wider then that in a rim. this will have your rims semi flush with ur fenders, without the hella flush look.

    to run wider then 8in for front rims, you will need to go lower offset then a +35 in the front as that is the highest offset you can run in the front with a 8in rim if memory serves.

    i am unsure in the rear how much inner and outer clearance is above and beyond a 9wide +35 rim, been a lot of years since i cared about running a wide tire in the rear of a mr-2, but a 9.5 should be 100% safe with a +35 also. a 10in in theory should be safe too... however, a 10 is pointless imo as you can run 255s fine on a 9 wide rim, likewise, u can run 255s on a 9.5 wide rim. 10s, no point unless u are running 275s, and no one should be running 275s imo unless u are building a drag mr2).



    also know that not all tires are the same width or height, as the markings on a tire are not exactly what they measure out to. a 225 wide tire may actually be a 235 wide or wider, and a 25in diamter tire can sometimes be as high as 25.3in from what i've seen. so, if you are going with some extreme hella fitment setup, you better know what ur doing or its going to not work or rub like crazy.
    Last edited by zhao; January 20th, 2012 at 12:55 AM.

  4. #4
    Join Date
    Sep 2006
    Location
    Edmonton, Alberta, Canada
    Posts
    2,565

    Default Factory Sizes & Offsets

    Here are Toyota's SW20 MR2 wheel & tire sizes:

    1991-1992
    F: 14x6, +45 w/ 195/60R14 (Overall diameter: 23.21 inch)
    R: 14x7, +45 w/ 205/60R14 (Overall diameter: 23.68 inch)

    1993-1999
    F: 15x6, +45 w/ 195/55R15 (Overall diameter: 23.44 inch)
    R: 15x7, +45 w/ 225/50R15 (Overall diameter: 23.85 inch)

    Mine by comparison:
    F: 17x8, +35 w/ 215/35ZR17 (Overall diameter: 22.92 inch)
    R: 17x9, +38 w/ 245/35ZR17 (Overall diameter: 23.75 inch)

    I have heard recommendations to take a 40% sidewall over the 35% that I have & that will improve your ride quality while increasing your overall diameter as well. Something to keep in mind.
    Last edited by huntsean; December 20th, 2013 at 01:12 PM. Reason: Corrected 93-99 front tire size
    87 AW15.b MR2
    93 SW21.II MR2
    98 EL53 Tercel
    10 ZRE142 Corolla

  5. #5
    Join Date
    Feb 2008
    Location
    SW edmonton
    Posts
    5,302

    Default

    your 35 profile tires are just ultra rare for selection which is why i wouldn't bother going with that size. 40 profile with ur width while not exactly super common, is about a million times more common and has enough selection that u can get pretty much any class of tire u want in it. i imagine ur size ur only going to find obscure brand hard summer tires, or budget all-seasons, probably in only a few tires that come on both those sizes. i honestly have never heard of a 215/35/17 before, nor have a i heard of a 245/35/17.

  6. #6

    Default

    I am suprised that no one has mentioned this yet(unless of course it is hidden in the enormous essay above. Anyway here's the link. http://mr2.gordaen.com/wt_calc.php

  7. #7
    Join Date
    Sep 2006
    Location
    Edmonton, Alberta, Canada
    Posts
    2,565

    Default Falken FK452

    I am currently using Falken FK452's on the front & rear. I do believe it would be hard to match up these sizes with another tire. I will probably be out of luck when these get discontinued.

    I hadn't mentioned it yet but I do know of the MR2 calculator. A very good website to see how specific wheels may fit with certain tires on your SW20 MR2.
    87 AW15.b MR2
    93 SW21.II MR2
    98 EL53 Tercel
    10 ZRE142 Corolla

  8. #8

    Default

    Fronts: 18x8 +20 TSW Splits
    225/35zr18 Nitto NT555

    Rears: 18x9.5 +20 TSW Splits
    265/35zr18 Nitto NT555

    WBK for the win MWAHAHA!!!

  9. #9

    Default

    Buy my ballin ass rimzzz... 18x8+40 and 19x10+36. Just do it. (Free tires)
    CT Headers | AP-X Resonated Test Pipes | AP-X V1.0 Exhaust | Tein Flex Coilovers | Work VS-XX Wheels
    '02+ OEM F&R Conversion | Reupholstered Alcantara Interior | DC5 Steering Wheel Conversion

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •