Page 3 of 9 FirstFirst 12345 ... LastLast
Results 31 to 45 of 132
  1. #31
    Regular Member fintelboss's Avatar
    Generation
    3rd Gen
    Model
    Si 4ws
    Join Date
    Oct 2007
    Location
    Victoria
    Posts
    220
    sorry bob, i think we keep having the same misunderstanding...

    wider tyre means the contact patch is wider, but also shorter. the same area of rubber must be on the road. simple F = P*A

    it seems a lot of people think that by fitting fat tyres they will have more grip because there is more tyre on the ground. this simply cannot the reason, because we know the area of the contact patch is exactly the same size.

    i dont know much about improving grip, but isnt the only cause a change in the way the tyre deforms when its spinning round and round, or the rubber stickyness and tyre temp?

    add to this that when people get fatter tyres, they normaly start running higher pressures, like 35+ psi, so they now have a smaller contact patch then the standard, 30 to 34 psi in a skinnyer tyre.

    i read the carbible articles long ago, and so far as i can see everything i have said is found in it.

    can you point out anything ive got wrong?

    thanks!
    ---Life without geometry is pointless.---

  2. #32
    PA Janitor Bob's Avatar
    Generation
    3rd Gen
    Model
    Si 4WS - B Spec
    Join Date
    Jan 2006
    Location
    Western Australia
    Posts
    11,091
    Quote Originally Posted by fintelboss View Post
    sorry bob, i think we keep having the same misunderstanding...

    wider tyre means the contact patch is wider, but also shorter. the same area of rubber must be on the road. simple F = P*A

    it seems a lot of people think that by fitting fat tyres they will have more grip because there is more tyre on the ground. this simply cannot the reason, because we know the area of the contact patch is exactly the same size.

    I don't know much about improving grip, but isn't the only cause a change in the way the tyre deforms when its spinning round and round, or the rubber stickiness and tyre temp?

    add to this that when people get fatter tyres, they normally start running higher pressures, like 35+ psi, so they now have a smaller contact patch then the standard, 30 to 34 psi in a skinnier tyre.

    i read the carbible articles long ago, and so far as i can see everything i have said is found in it.

    can you point out anything I've got wrong?

    thanks!
    Sorry bloke I missed this one.

    I think you are on the right track. Wider does not necessarily give better grip.

  3. #33
    Regular Member jmsin1's Avatar
    Generation
    5th Generation
    Join Date
    May 2006
    Location
    Victoria
    Posts
    195
    hai guise.

    I looking at some 17* 7 ROH wheels which apparently are +32 Offset. I have read the facts etc but just want to confirm that they are not suitable for a 5th gen??

    Is this mainly due to too much rubbing??
    a s s e m b l e . y o u r . c r e w

  4. #34
    Junior Member karlos's Avatar
    Generation
    4th Gen
    Model
    S
    Join Date
    Nov 2007
    Location
    Victoria
    Posts
    97
    guys urgent help, will these rims pass the standard load ratings for 4th gen?

    http://cgi.ebay.com.au/Lenso-18X8-Al...QQcmdZViewItem

  5. #35
    Gold Member hiru's Avatar
    Generation
    Other Honda
    Model
    Si 4ws
    Join Date
    Nov 2006
    Location
    Victoria
    Posts
    3,231
    i'd say you should be requesting what the load rating of the tyre is too if you are concerned....

  6. #36
    Junior Member karlos's Avatar
    Generation
    4th Gen
    Model
    S
    Join Date
    Nov 2007
    Location
    Victoria
    Posts
    97
    what happens if its less than the recommended rating that it says?

  7. #37
    Gold Member hiru's Avatar
    Generation
    Other Honda
    Model
    Si 4ws
    Join Date
    Nov 2006
    Location
    Victoria
    Posts
    3,231
    not good... basically it cannot support the weight of the vehicle adequately. mate sure the load rating of both rim and tyre is adequate. i dont know too much stuff about this kinda thing tho so i guess you'd be better off waiting for a more knowledgeable reply

  8. #38
    Gold Member GreenViouS's Avatar
    Generation
    5th Gen
    Model
    Beige Leather
    Join Date
    May 2006
    Location
    New South Wales
    Posts
    2,083
    Hmmm, from memory the load rating is about 92 for a 5th gen (someone correct me). It'd be a little less for a 4th gen

    The load rating for 215/35R18 in this tyre is only 84 with extra load rating... quiet low, I wouldnt recommend it..
    Thats a pretty bad tyre size choice to begin with, he's really stretching a small width tyre out for an 8" rim.

    I'd be vary wary about buying an 8" rim for a lude to begin with.. even with a high offset around +45 may still result in scrubbing.. He doesnt say what the offset is with these rims either

    http://www.falken.com.au/tyres/passenger-FK452.html

  9. #39
    PA Resident brash's Avatar
    Generation
    5th Gen
    Model
    VTi-R
    Join Date
    May 2006
    Location
    South Australia
    Posts
    4,177
    I've never heard of anybody having an 8inch wide rim on a Prelude without trouble. That's not saying it doesn't happen, just that in my years of spending time on every lude forum known to man, I've not heard of it.

  10. #40
    PA Resident brash's Avatar
    Generation
    5th Gen
    Model
    VTi-R
    Join Date
    May 2006
    Location
    South Australia
    Posts
    4,177
    Just thought I'd add this into the thread, after a little research. I may add to this post again later.

    8" Wide Wheels w/ 5th gen
    Some have had success with offset of +45


    Tyres
    215/35/19 - Large contact patch, recommended 19" tyre

    (I've been searching all night, and not found anybody using any other size on a 19 inch rim with any level of success)
    Last edited by brash; 17th June 2008 at 11:13 PM.

  11. #41
    Senior Member Luder88's Avatar
    Generation
    5th Gen
    Model
    VTEC
    Join Date
    Jun 2007
    Location
    New South Wales
    Posts
    983
    On the 1st page it doesn't mention anything about 205/45/R16 tyres.

    Would this be suitable on stock rims but the lude is lowered say... 1.5"?

  12. #42
    PA Resident brash's Avatar
    Generation
    5th Gen
    Model
    VTi-R
    Join Date
    May 2006
    Location
    South Australia
    Posts
    4,177
    Stock size is 205/50, so a /45 is slightly lower profile, your tyres will have a slightly smaller circumferance. Yes it will suit, but the lower circumference will push your speedo out, slightly.

  13. #43
    Regular Member fintelboss's Avatar
    Generation
    3rd Gen
    Model
    Si 4ws
    Join Date
    Oct 2007
    Location
    Victoria
    Posts
    220
    you will get less speeding tickets, and shave a few 10ths of a second off your 0-100 time
    ---Life without geometry is pointless.---

  14. #44
    Senior Member Luder88's Avatar
    Generation
    5th Gen
    Model
    VTEC
    Join Date
    Jun 2007
    Location
    New South Wales
    Posts
    983
    Yeap sweet as brash. I think I understand now. So what you're trying to say is that if I'm traveling @ a constant speed of 60Km/hr the speedo will be showing 60km/hr but am I actually goin quicker or slower by ~1-2km?

    Cheers =)

  15. #45
    Regular Member fintelboss's Avatar
    Generation
    3rd Gen
    Model
    Si 4ws
    Join Date
    Oct 2007
    Location
    Victoria
    Posts
    220
    3.6km/h slower
    ---Life without geometry is pointless.---

Similar Threads

  1. Tyre Pressures
    By eein in forum Fifth Generation
    Replies: 7
    Last Post: 24th December 2004, 01:44 AM
  2. TSB - 00-088 - Brake Disc Refinishing Guidelines (All)
    By djroketboy in forum Technical Service Bulletins
    Replies: 0
    Last Post: 12th November 2004, 12:07 PM

Posting Permissions

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