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Dunlop Direzza Sport Z1

Last post 08-20-2008, 12:03 PM by Mooobunnny. 418 replies.
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  •  02-04-2008, 12:30 PM 283424 in reply to 283414

    Re: Dunlop Direzza Sport Z1

    ProDarwin:
    That's the right size for me... but 17s weigh too much :(

     

    Tirerack has  forged TR Motorsports F1s in 17x7.5", 4X100, 37 mm offset that weigh 12 lbs each.  They only show them as a Lotus Elise Sport Package rear fitment, but I can't see why they wouldn't work on a SC2/Civic/CRX/Miata with the possible exception of hub bore (which is relatively easily remedied if that's the only hitch) .  They are a little spendy at $439 each. 

    I figure the 17" Dirzera/TR Motorsports combo would be about 3 lbs/corner heavier than the common 15" Enkei RPF1/B-stone combo used by many STS/STS2 competitors. 


    SCCA RoadRally 2009 National Tour Champion, Sportsman
  •  02-11-2008, 10:23 PM 284712 in reply to 283424

    Re: Dunlop Direzza Sport Z1

    My buddy just bought a set of these for a local street tire Stock class for his '05 Mazda3 sedan in the 235/45-17 size from TireRack.  On a 6.5" wheel, they are HUGE.  Unmounted, compared to the 225 RE-01R's (also unmounted) they appeared nearly an inch wider (did I say they were huge?).

    225 Hankook Z212 and Dunlop Z1:

     

     

     

    Plenty of room (finger and a half width behind the tire)--  


    *Banned Again* Permanently
  •  02-11-2008, 10:50 PM 284718 in reply to 284712

    Re: Dunlop Direzza Sport Z1

    Hey James, good seeing you yesterday.

    2nd competition results on the Direzza Z1s, this time in warm 75 -80 deg weather. We won STU and had the fastest street tire times overall. The other 2 top national cars were within a few tenths (STI and M3), but they weren't on fresh tires.

     The tires confirmed our conclusions last time about handling heat well. There was some noticeable drop off in grip after 4-5 runs but nothing near like a 615 or a RE01R. We are also on full treads, so shaving could help some by not retaining heat. 1st run of the 1st group, the lightly loaded rear tires of the Evo was very loose in the first half of the course. These need a bit more heat than the RE01s before they come in. 

     I would say on heavier cars, or cars that overwork the tires (FWD), the Dunlops could be one of the top 2 tires available at this time.

      

  •  02-12-2008, 9:59 AM 284768 in reply to 274240

    • ebnrt is not online. Last active: 03/21/2010, 12:50 PM ebnrt
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    Re: Dunlop Direzza Sport Z1

    STS3gCivicSi:

    .

     ...the 195/55-15 has very similar size specs to the RT-615 205/50-15...

     

    Has anyone tried the 195/55-15's? 


    Erik B.
    Wisconsin Autocrossers, Inc
    www.waiautox.org ___/\___/\___/\___/\___/\___
    2007 Mazda6
    2000 "Fozda" ZX2 S/R--ST unCivic
  •  02-12-2008, 4:48 PM 284843 in reply to 259535

    Re: Dunlop Direzza Sport Z1

    Any word on if or when they will bring in the 225/45/16?
  •  02-12-2008, 8:05 PM 284867 in reply to 284718

    Re: Dunlop Direzza Sport Z1

    Has anyone tested these in cold weather (in the 40s or 50s)?
  •  02-12-2008, 8:58 PM 284873 in reply to 284843

    Re: Dunlop Direzza Sport Z1

    Bluebaru:
    Any word on if or when they will bring in the 225/45/16?

    That's the size I'll be looking at as well.  I don't understand why these tire companies can't be upfront & somewhat definitive on their release dates.  Why does it have to be such a big mystery?  I'm sure they have a general idea when they plan to bring out each tire size, so what's the big deal in letting us know?  Last year Bridgestone was pretty open about it and made them available before the start of the season.  Seems like Dunlop and Toyo aren't as organized or something. I was really hoping to see some test results and personal opinions on these new offerings by now. 


    STX94 - '96 Saturn SC-2
  •  02-13-2008, 10:52 AM 284951 in reply to 284873

    Re: Dunlop Direzza Sport Z1

    Remember that while we are their "customers", we are not their top priority.  Their biggest money makers are OEM tires, tires sold to Sears and quick tire change places, to the general public.  We get our stuff when they become available.  I know with Hankook, the people in the US offices are fighting to get us information and firm dates on tire deliveries, but if they have no info themselves or the main mother company overseas are not in a hurry, it just gets here when it gets here.  The Dunlop tire is sold through Goodyear.  We were meeting with a local retailer a few days ago who had his Goodyear rep there, and he said that they just found out about the Z1 even existing mere days ago, and only because people were asking for them.  Again, priorities....200 sets of passenger car tires at a higher profit margin is way higher on the totem pole than 10 sets of specialty performance tires at half the PM.  They'll get here eventually, we just have to wait.

    *Banned Again* Permanently
  •  02-13-2008, 11:18 AM 284956 in reply to 284873

    Re: Dunlop Direzza Sport Z1

    Gunny JC:

    I don't understand why these tire companies can't be upfront & somewhat definitive on their release dates.  Why does it have to be such a big mystery?  I'm sure they have a general idea when they plan to bring out each tire size, so what's the big deal in letting us know?  Last year Bridgestone was pretty open about it and made them available before the start of the season...

     Actually, Bridgestone knew they were bringing the smaller sizes of RE-01R into the states back in October '06. I learned about it in Dec '06. They didn't release anything publicly until mid-March '07.


    Aut tace aut loquere meliora silentio.
  •  02-13-2008, 1:12 PM 284969 in reply to 284873

    Re: Dunlop Direzza Sport Z1

    Gunny JC:

    Bluebaru:
    Any word on if or when they will bring in the 225/45/16?

    That's the size I'll be looking at as well.  I don't understand why these tire companies can't be upfront & somewhat definitive on their release dates.  Why does it have to be such a big mystery?  I'm sure they have a general idea when they plan to bring out each tire size, so what's the big deal in letting us know?  Last year Bridgestone was pretty open about it and made them available before the start of the season.  Seems like Dunlop and Toyo aren't as organized or something. I was really hoping to see some test results and personal opinions on these new offerings by now. 

    James is right on the money.  While it may seem to us that we are this huge market opportunity, it just is not the case.  Only when a company decides to use us as "peer leaders" in a marketing push (that's marketing, not sales), do they get involved to the degree you suggest.  

    We are fortunate that Bridgestone's Director of Business Development is an SCCA autocrosser and club racer of note (look up Mike Van Sicklen in your rulebook champions listing).  He knows how to use SCCA success for marketing to hi-performance street-use folks.  Same was true when Doug Reed came to Hankook from SCCA club racing.  That's when the Z212 street tire came out and all of the good R-compounds.

    --Andy

     

  •  02-13-2008, 2:32 PM 284983 in reply to 284969

    Re: Dunlop Direzza Sport Z1

    and for their transparency, their support, their compund, but not their sizes, and also due to Toyo's opaqueness - they'll have my business!

     

    (hope they're thrilled.... Stick out tongue)

     

    Ps: my mum said I should never be a proselyte within 100 feet of a church...


    Charlie Thompson
    '04 JCW Cooper [STX]
    NER Cannon Fodder
  •  02-13-2008, 8:24 PM 285032 in reply to 284983

    Re: Dunlop Direzza Sport Z1

    I guess my feeling on this is that if they are going to announce a new tire publicly and put up on their main website, then they should at least have some sort of clue when they plan to release said tire.  My guess is they have a pretty fair idea of what the planned timetable is and I can't understand the need to keep it a mystery.  Just my thoughts is all.....


    STX94 - '96 Saturn SC-2
  •  02-13-2008, 10:27 PM 285052 in reply to 285032

    Re: Dunlop Direzza Sport Z1

    To the poeple that have autocrossed on the Dunlops, how are they in transitions?  Do they flop around like the Bridgestones or are they more precise like the Yokohamas?

     

    Thanks,


    Scott


    My playground is a parking lot
    '99 BMW M3 Convertible
    http://www.questfortech.org
  •  02-14-2008, 12:04 AM 285058 in reply to 285052

    Re: Dunlop Direzza Sport Z1

    Not the flop over and set like the RE01Rs, feels more like a Yokohama on a rough surface.
  •  02-14-2008, 1:19 PM 285145 in reply to 285058

    Re: Dunlop Direzza Sport Z1

    Thanks, that's good to know.

     Scott


    My playground is a parking lot
    '99 BMW M3 Convertible
    http://www.questfortech.org
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