ZII vs R1R

Discussion in 'Fiesta ST Autocross' started by Mister_Mino, Jan 6, 2015.

  1. Mister_Mino

    Mister_Mino Member

    hmmmm. Thoughts?
     
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  3. Des

    Des Active Member

    No one knows for sure if anything besides the treadwear rating was changed on the R1R, but in the past it hasn't done well squeezed onto a small rim.
     
  4. Mightymango

    Mightymango Active Member

    I was thinking it as it is available in the 225 size as well. IMO the Fiesta is just too heavy for them especially when it gets hot. The R1R seems to need lighter cars then ours are.
     
  5. Mister_Mino

    Mister_Mino Member

    Is a R-S3 in 225 45 16 too much to ask for??
     
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  6. Mightymango

    Mightymango Active Member

    Apparently so, I have been debating experimenting with a 205 size tire but I had good results/feel with the 225. If I get to spring Nats and I get my ass handed to me on all cars with 205s....I will change.

    Still don't think the R1R is going to be the tire for our cars.
     
  7. Pedro

    Pedro Active Member

    I am running 215/45/17 rs3 and I had some rubbing when doing medium to hard turns. I installed some 2 coil boosters as a temporary fix, and I get no rubbing at all. So I am sure a 225/45/16 tire will be just fine, maybe a little rub on the stock wheels when doing full lock to lock.

    Edit: on a stock offset, I know a 16" rim is not stock. Morning typo's....
     
  8. Mightymango

    Mightymango Active Member

    There is no Kook in the 225/45/16.

    The 225/45/16 ZII is just fine, ran that size all last year.
     
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  9. Pedro

    Pedro Active Member

    Oh that is what he meant. Yeah you are right there are no hankook rs3 in that size.
     
  10. ABQautoxer

    ABQautoxer Member

    I'll be fairly surprised if the R1R works on this car in anything above 60F. I've been running the Z2 star spec on the Spyder since nats and I'm super impressed with it where I very much disliked the regular Z2 so I plan to try that tire first in a couple weeks.
     
  11. k757

    k757 Active Member

    I'm assuming the Kook RS3 225/50-16 will fit on Sparcos as they are a hair taller than the 45.

    Assumption wrong ?
     
  12. ABQautoxer

    ABQautoxer Member

    No the 45 profile vs 50 is a 1" OD difference, so a .5" less clearance. I'd expect that to rub badly based on reports of how 225/45/17 fit though I haven't tested either personally.
     
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  13. Des

    Des Active Member

    Josh and I tested pretty much every size or brand between the two cars. A 225/50 will rub a lot.
     
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  14. ABQautoxer

    ABQautoxer Member

    Des, do you know the required offset for the 235/40/17 Z2 SS on a 17x7? Ed told me it had to be stockish and 42mm definitely would not work but I was curious how much room there might be to the fender.
     
  15. Des

    Des Active Member

    Stock offset worked great, 42 rubbed on sharp bumps and heavily loaded sweepers but it wasn't constant by any means.Hoping 45 is close enough because there aren't any other light options that I saw.

    Will update you when I can get the new wheels on.
     
  16. TRev

    TRev Member

    Is that with stock rims? I thought I had read that they don't rub in that size.

    Des, did you guys test the 215/45R17 RS3 v2?
     
  17. ABQautoxer

    ABQautoxer Member

    Also, what size did you like best? I can't decide between 225/45/16 and 235/40/17.
     
  18. JLWSN

    JLWSN Member

    I believe the 215/45/16 will be the best size, but I will run 205s before 225s. The STC and STS cars proved the 195 R1Rs (yes special compound along with many other factors) to be faster than larger sizes. Brian Peters also did not appear to gain much from the 25mm increase from STR to STU on his 350Z. Of course I truly dislike the feel of pinched tires so my bias shows when discussing this.
     
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  19. Des

    Des Active Member

    Yes we tested the RS3 in 215 but didn't like the feel. I don't remember encountering any rubbing but we only ran one event. Tom, I think you'll have plenty of data to compare the 225 and the 235 but I am going with the 235 as I did on my FRS. In this case it's more for the extra height over the 225 than for the width. Most folks have gone with the 225 because wheels are so much easier to find. There's almost no difference in tread width just a bit on height
     
  20. Pedro

    Pedro Active Member

    No it was with the Sparco Gara wheels I think the offset is +42
     
  21. Subscribing to thread...

    From ST Civic experience, unless there was a compound change on the R1R that deals (a lot) better with heat then I doubt that the R1R in ANY size will be the right answer.

    My initial "shot" was a set of 205/40R16 RS3v2s on the Asseto Garas. Not thinking it is the ultimate setup by any means, but something to get some seat time in the car before 23144 new options come out in the next 90 days :D
     

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