+ Reply to Thread
Results 1 to 12 of 12
  1. #1
    jim 325is
    Guest
    Location
    , ,
    Member No: jim 325is's Avatar


    Yes | No

    R-compound tires

    I have a new track car a 325is with a full race suspension.The wheels
    came with two sets of tires toyo ra1 225-50-15 and kuhmo 205-50-15.
    Which were kossi k1's.This car has has a slightly modifed m-20 motor.

    What would be the best tire size to run on this car.The car will only be used for driving schools.
    Thanks jim


  2. #2
    Michael A
    Guest
    Location
    , ,
    Member No: Michael A's Avatar


    Yes | No

    You want to know the truth?


  3. #3
    Michael A
    Guest
    Location
    , ,
    Member No: Michael A's Avatar


    Yes | No

    You want to know the truth? Retry...

    225/50/15 but I'd would rather get some hoosiers instead of the toyo ra1s.

    You can fit 245/40/15, there is a guy that is running this setup but is an auto-xr. Hoosiers are your friend.

    Let me know if I can help you out anyway.


  4. #4
    Michael A
    Guest
    Location
    , ,
    Member No: Michael A's Avatar


    Yes | No

    www.e30.us check that out.


  5. #5
    Registered Member
    Location
    Bath, NY, United States
    Member No: 14113 marcmc8867 is an unknown quantity at this point marcmc8867's Avatar
    Join Date
    Sep 2001
    Posts
    1,778
    Rep Power
    0


    Yes | No

    if you\'re tracking and not racing, the Toyo\'s are

    People will tell you to go Hoosier (as Michael A just did). Unless you're competing or preparing to compete and all that, Hoosiers will not be worth the money to you. And quite frankly, even some who race don't use Hoosiers when competing.

    They're expensive...but the main thing is that they are only good for 1 weekend, maybe 2 if you're lucky. Unless you're really getting serious about this stuff, you don't need them.

    The Kumhos are really good. Nothing is quite as grippy as the Hoosiers but any R-compound will be a major step up from a street tire on track. The Kumhos are the cheapest but they have great grip. They don't last forever, but the wear isn't bad at all. The Toyos have a bit less grip but last quite a bit longer.

    I guess all of the above assumes that you're doing some tracking here and there and that you're somewhat new to it (otherwise you might not be asking the question). I think Toyos are a good first R-compound tire for someone getting into it. They're the best value and they bridge the gap between street tires and competition tires nicely.

    They're the spec tire for the Speed World Challenge GT class. To me, that says something.

    Sometime later on, you may want to spring for Hoosiers, but if you have to ask the question, then Hoosiers aren't in the cards yet.


    Good luck.
    MHM3
    2002 Porsche 911 C4S
    2003 M3 SMG
    1999 M3
    1989 M3
    1984 325e
    x-2001 M3 convertible
    1995 Mitsubishi Montero SR (flagship of the fleet)

    2003 M3 Coupe
    Carbon Black/Cinnamon/Aluminum SMG,
    Eisenmann Meisterschaft Race 83mm Exhaust.
    Supersprint Connecting Pipe w/o Resonator
    Brembo Gran Turismos
    BBS CH 19's
    NAV-TV, DVD changer

    Official Track Gypsy Stops '03: Watkins Glen, Lime Rock, Pocono, BeaveRun, MidOhio, Mosport, Mont Tremblant, Summit Point, VIR, Carolina Motorsports Park, Road Atlanta, Roebling Road, Homestead.

    Coming Soon: Sebring, Barber, Moroso

    <img src="http://members.roadfly.org/marcmc8867/Fleet%20front%20quarter-3.JPG" height=187 width=450>

  6. #6
    DLS
    Guest
    Location
    , ,
    Member No: DLS's Avatar


    Yes | No

    Also consider Pilot Sport Cups; they are SUPERB>

    and, wiht the proper amount of negative camber (specified as at least 2 degrees, IIRC), they will last forever, so their higher price is more than offset by their longevity. I got ~14+ HARD track days out of mine, plus 150-200 miles of driving EACH WAY to the tracks, and they still had life...until I flatspotted them... Caveat: they take ~2-3 laps to properly warm up, and come in some odd sizes for BMW's.


  7. #7
    Registered Member
    Location
    Bath, NY, United States
    Member No: 14113 marcmc8867 is an unknown quantity at this point marcmc8867's Avatar
    Join Date
    Sep 2001
    Posts
    1,778
    Rep Power
    0


    Yes | No

    agreed...if you can find sizes you want, its a

    but I wouldn't venture to say that they last longer than the toyos.

    that's why I think you run toyos until your skill catches up a bit. At that point, Michelin PSC will be the way to go.

    MHM3
    2002 Porsche 911 C4S
    2003 M3 SMG
    1999 M3
    1989 M3
    1984 325e
    x-2001 M3 convertible
    1995 Mitsubishi Montero SR (flagship of the fleet)

    2003 M3 Coupe
    Carbon Black/Cinnamon/Aluminum SMG,
    Eisenmann Meisterschaft Race 83mm Exhaust.
    Supersprint Connecting Pipe w/o Resonator
    Brembo Gran Turismos
    BBS CH 19's
    NAV-TV, DVD changer

    Official Track Gypsy Stops '03: Watkins Glen, Lime Rock, Pocono, BeaveRun, MidOhio, Mosport, Mont Tremblant, Summit Point, VIR, Carolina Motorsports Park, Road Atlanta, Roebling Road, Homestead.

    Coming Soon: Sebring, Barber, Moroso

    <img src="http://members.roadfly.org/marcmc8867/Fleet%20front%20quarter-3.JPG" height=187 width=450>

  8. #8
    Registered Member
    Location
    Needham Heights, MA, United States
    Member No: 15491 mgoulde is an unknown quantity at this point mgoulde's Avatar
    Join Date
    Oct 2001
    Posts
    58
    Rep Power
    0


    Yes | No

    Yokohama A032R?

    Has anyone had experience with Yokohama A032R? They seem popular out West with the NABR guys.

  9. #9
    Registered Member
    Location
    Carp, , Canada
    Member No: 42632 hagen is an unknown quantity at this point hagen's Avatar
    Join Date
    Jul 2002
    Posts
    729
    Rep Power
    0


    Yes | No

    What is your goal for the tires?

    Toyo will last 15 days. Kuhmo will last 8-10. Hoosier will last 3.

    Each grips more than the last.
    Hagen
    <table>
    <tr>
    <td ><img src="http://www3.sympatico.ca/hhtuner/cars/driving.jpg">
    </td>
    <td>Driving Instructor - BMW CC, BMW CCA, RAVEN Performance, Ferrari, SOCCI, MCO, PCA NER
    <font color="#0680dd">2001 LSB M3</font> (11200km on the track)
    Dinan Strut Brace, -1.5 camber (stock), Hartge adjustable suspension, GC adjustable sways, GC adj lower control arms, ITG stock filter, Carbotech XPX ceramic pads, Cryo Euro Floating rotors, Goodridge SS Brake lines, Motul 600 RBF, Stebro Exhaust (upper, mid, lower)
    Hartge 18" Classics, SO3 Pole Positions, SSR Comps w/Pilot Sport Cup
    Autothority SW, BMW Alloy pedals, short centre console (no arm rest)
    </td>
    1992 325i race car J Prepared - too many mods: GC race suspension
    1987 325is UUC SSK
    </tr>
    </table>

  10. #10
    Registered Member
    Location
    , ,
    Member No: 12904 pmiranda is just really nice pmiranda is just really nice pmiranda is just really nice pmiranda is just really nice pmiranda's Avatar
    Join Date
    Aug 2001
    Posts
    12,914
    Rep Power
    31


    Yes | No

    I had a set... not too impressive

    I don't think the grip was much better than S03's. They weren't as forgiving/communicative as Hoosiers... that's for damm sure.

    These were the "hard" compound version... maybe the "soft" ones are better.
    <img src="http://members.roadfly.org/pmiranda/TMCM_anim.gif">
    02 LeMansBlue/Silverstone M5
    98 EstorilBlue/Grey M3

  11. #11
    Registered Member
    Location
    , CT, United States
    Member No: 88845 Gregor54 is an unknown quantity at this point Gregor54's Avatar
    Join Date
    Sep 2003
    Posts
    593
    Rep Power
    0


    Yes | No

    Re: HOWL

    The 032R are marketed as a rain tire. I had a set on a 3 series and quickly found that they develop a howling sound, which seems to vibrate lug nuts loose. Was forever torquing them when the 032R were on. One of the Porsches in the Targa Newfoundland Rally was running 032, and I went up to him to see if they Howled. Big smile came over his face, and he explained they thought it was the rear end failing. Not even close to the grip of a Hoosier, but last much longer and can be driven on the street if you can take the noise. Agree a Sport Cup is a much better tire, albeit more money. As to Rain, if it gets deep, you need more tread. They would readily hydroplane on the 3 when they were at about half full tread depth.

    Gregor
    02 M Coupe
    Next Track Day, Lime Rock, March 23 www.scda1.com


  12. #12
    Registered Member
    Location
    , ,
    Member No: 12904 pmiranda is just really nice pmiranda is just really nice pmiranda is just really nice pmiranda is just really nice pmiranda's Avatar
    Join Date
    Aug 2001
    Posts
    12,914
    Rep Power
    31


    Yes | No

    Oh yeah, that too!

    I never had a problem with the lug nuts, but I only ran them at the track and torqued tehm at least once a day...
    <img src="http://members.roadfly.org/pmiranda/TMCM_anim.gif">
    02 LeMansBlue/Silverstone M5
    98 EstorilBlue/Grey M3

+ Reply to Thread


Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Bookmarks

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
1e2 Forum