Analysing Setups

Discussion in 'GT5 Tuning' started by Trewer_Rath, Dec 24, 2010.

  1. Trewer_Rath

    Trewer_Rath

    Messages:
    6
    Wanted to say hello to all and tell you how much i enjoy the forums. I am a 47 year old veteran of GT1-5,GTR(2),Forza1-3,i-racing, LFS and many more racing sim-type games. I hope i am not stepping on the rules or a previous posting but i noticed alot of confusion concerning setups and where to begin doing setups...so i thought i would share my collection of tips.Hope it helps newcomers to the fun of suspension tuning!

    Setup Reference Guide

    A)Understeer correction
    Understeer INTO Corner...*soften front comp. dampers
    *soften rear rebound dampers
    *softer front anti-roll bar
    *harder rear anti-roll bar

    Understeer MID Corner....*softer front anti-roll bar
    *harder rear anti-roll bar
    *increase front downforce
    *decrease rear downforce
    *increase camber

    Understeer OUT of Corner.*harder front rebound dampers
    *harder rear comp. dampers
    *softer front anti-roll bar
    *harder rear anti-roll bar

    B)Oversteer correction
    Oversteer INTO Corner....*harder front comp. dampers
    *harder rear rebound dampers
    *harder front anti-roll bar
    *softer rear anti-roll bar

    Oversteer MID Corner.....*harder front anti-roll bar
    *softer rear anti-roll bar
    *decrease front downforce
    *increase rear downforce

    Oversteer OUT of Corner..*softer front rebound dampers
    *softer rear comp. dampers
    *harder front anti-roll bar
    *softer rear anti-roll bar
    *raise rear ride height
    *soften rear suspension stiffness

    C)Basic suspension principles
    If you increase overall stiffness...vehicle will become responsive
    grip reduced over bumps and rough surfaces
    resistence to body roll increased

    If you increase front stiffness.....Induces understeer
    Reduces oversteer
    Front resistence to body roll increases

    If you increase rear stiffness......Induces oversteer
    Reduces understeer
    Rear resistence to body roll increases

    If you increase front anti-roll.....Induces understeer
    Reduces oversteer
    Reduces camber change in corners

    If you increase rear anti-roll......Induces oversteer
    Reduces understeer
    Reduces camber change in corners

    If you increase rebound only........tires may leave surface on bumps and rough surfaces

    If you increase bump only...........body roll is resisted
    vehicle may become less stable

    D)Analysing Setups
    1.Gearing & Tire selection
    2.Brakes
    3.Ride height & Springs
    4.Anti-Roll bars
    5.Camber & Toe settings
    6.Dampers
    7.Aerodynamics

    This is by no means the only way of analysing setups...i personally find it easier to start with gears and tires and work from there. I also try to avoid radical camber,toe,and dampers settings unless the car warrants it...let the springs and anti-roll bars do their work and make smaller adjustments to the rest.
    Again...great forums...great community...awesome tuners...hope i have done my part to add something useful!
     
  2. DMoss84

    DMoss84

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    192
    These are some great tips. Thanks for the post!
     
  3. Sail IC

    Sail IC

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    1,019
    Outstanding post !!!!!

    I really like the way you broken tuning into entry-mid-exit of the corner. I think will be of great assist when working on a tune step by step, trying to come with a good end set-up.

    Thanks
     
  4. MADDAD

    MADDAD

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    8
    46 yr old vet, off to finesse my rx-7, thanks for this post, let you know how it goes
     
  5. Kurei

    Kurei

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    2,741
    Location:
    United States
    Very good guide for when your looking to weed-out that last bit of under/oversteer, helped me neutralize my GTR :D

    I'd recommend looking to include this in a tuning guide or sticky-thread, It could be really helpful to those new to tuning
     
  6. DTM

    DTM Premium

    Messages:
    2,489
    Location:
    Netherlands
    Thanks for writing it down short and very clear. Im racing seriously for almost three years now but never really understood the tuning part of it. Over those three years i picked some things. But this is what i was really looking for.

    Thanks alot :tup:
     
  7. Starfirebird

    Starfirebird

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    1,662
    Location:
    United States
    Nice guide man :tup:

    I knew some of these tuning tips,but not all.Thanks a lot.
     
  8. rabi3

    rabi3

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    43
    nice guide. thanks
     
  9. Nightingale

    Nightingale

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    241
    Great thread. Should be stickied.
     
  10. vinze1129

    vinze1129

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    118
    Location:
    Malaysia
    Thank you mate.

    I would love to hear more from you.

    Add me to your list so we can race together.

    regards

    PSN : vinze1129
     
  11. SS_1182

    SS_1182

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    1,173
    Thanks M8!!


    Add me if you ever want some friendly racing.

    PSN: SS_1182
     
  12. Rell

    Rell

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    2
    Nice! thanks for the help
     
  13. kovacs

    kovacs

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    59
    Thx, great post, could you please also explain how the LSD works ? That would be great :-)
     
  14. george_alba

    george_alba

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    Location:
    United States
    Great stuff!!!
    Thanks for the info.
     
  15. C.D

    C.D

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    248
    This is exactly what I was looking for, many thanks mate.
     
  16. SS_1182

    SS_1182

    Messages:
    1,173


    There's a great explanation of LSD in the tuning guide posted at the top of the threads in this forum. It basically limits the amount that the individual wheels can spin during different parts of accelerating and cornering. It can generate a lot of differences in understeer/oversteer in several situations based on how much it is coming into play while you are racing. Again, I suggest downloading the tuning guide PDF and reading pt. 2.
     
  17. jcide

    jcide

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    348
    Location:
    United States
    Thanks for the tips. I will definitely bookmark this and reference it later.
    Send me a friends request if you need help finding any cars. I have several. :)
     
  18. rabi3

    rabi3

    Messages:
    43
    hello Trewer_Rath. why don't you make a small team for tuning. it will be fun, we will benefit from your experience and improve the game.

    PM me if interested.
     
  19. tirple

    tirple

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    Gotta reply to mark this article
     
  20. xcllr8

    xcllr8

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    62
    Useful when I work out what under steer and over steer means. It"s all good I know how to change the oil.
     
    Last edited by a moderator: Dec 28, 2010
    davidguire likes this.
  21. Mr_Joe

    Mr_Joe

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    51
    Location:
    Monaco
    nice tips ;-)
     
  22. zodicus

    zodicus

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    658
    good post, didnt talk about toe though. my understanding of toe in gt is neg toe is toe out and pos toe is toe in.

    toe out in the front will give more over steer, especially at the limit of grip and more toe in, in the rear will give more understeer espcially under acceleration.

    most cars seam to like a little toe out in the front and a little toe in in the rear as a base. Then add more to the front or rear to tweek the last bit of under/over steer out of the set up.
     
  23. buziii

    buziii

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    365
    Very helpful advice indeed, especially to those of us that are less than novice tuners. I tend to apply others' tunes without a great deal of thought on what I'm doing.

    I have a question concerning fixing understeer in 4WD drivetrain cars. Is the OP's advice just as valid for 4WD? I have recently applied some others' setups to my ZZII and my Impreza WRX RM and they don't turn as well as they did before I applied these set-ups. How best to start tweaking them?
     
  24. GT5tuner

    GT5tuner

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    3
    Great information, really helped my understanding of vehicle dynamics.

    I linked it on my site as well.
     
  25. Trewer_Rath

    Trewer_Rath

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    6
    Thanks for all of the positive feedback!

    On the 4WD vehicles...try adjusting the Torgue Sensing Center Differential to a setting that has more torque going to the rear wheels to help induce oversteer.As for your cars not feeling right after applying a tune...go back to your default setting and begin again but in smaller adjustments and see if you find a set more to your taste.

    At this moment i am still debating the idea of a tuning team. There are several good tuners here already and my time is limited right now because of pc gaming leagues and a gaming clan i belong to.Give me 2-3 weeks and we will see... My clan now has 6 converts to GT5 and i am still working on more!(its very hard to convince die-hard pc gamers to give console racers a go!!!)
     
  26. esonique

    esonique

    Messages:
    21
    Location:
    United States
    Awesome information for us novice tuners.
    I do have a question about settings. You do mention for example:"Oversteer INTO Corner....*harder front comp. dampers".

    When adjusting the settings what increments would you recommend? For instance will one or two ticks for Front Dampers be noticeable when oversteering into a corner, how many ticks/steps would you recommend starting off with?
     
  27. Weiga-

    Weiga-

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    122
    Lovely, thank you very much!
     
  28. zodicus

    zodicus

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    658
    if its bad try 2 or 3 clicks if you just want a little tweek then one click will do you should notice some change.
     
  29. esonique

    esonique

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    21
    Location:
    United States
    I will give it a try. Thanks!
     
  30. TakahashiRyoske

    TakahashiRyoske

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    80
    Trewer_Rath: Thanks for this great guide! It really works, so I have found it invaluable in taming oversteering beasts.

    I love it so much that I have adapted the content into a website. I have given you full attribution.

    http://gt.pist0s.ca/