Post: GT6 Game Physics Testing
04-30-2014, 09:03 PM #1
SiNiST3R
Samurai Poster
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GT6 Physics Testing & Analysis

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Lap Battles
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Here are some videos (I can only add 2 so Ill link post where videos are posted when I can)



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The following 9 users say thank you to SiNiST3R for this useful post:

Jounijkk, kazzbakkisback, nextgole, OdeFinn, P$ycho, policedu, q-k, turbo_nova2l, tyronekfc
08-09-2015, 12:15 AM #974
SiNiST3R
Samurai Poster
Worked for all of a few hours, I'm on a get a next provider trip
08-14-2015, 03:40 PM #975
OdeFinn
Bounty hunter
@Jouni, now my Evora goes 1:25.low online with simple gearbox, potential to take probably second out after gearbox tuning, steady to drive and on 10 lap test race last lap last corner starts to be bit harder.. Tune is just breed from earlier posted quick tune.
I'll probably fine tune this to be one cruising car to me on 450/cs/sh/noabs driving and 470-500pp real racing car.
08-15-2015, 01:23 AM #976
Fatpabs
Gym leader
Originally posted by SiNiST3R View Post
ABS in GT6 eliminates the ability to use "threshold braking" When ABS in real life is installed its only supposed to kick in to stop wheel lock but do nothing until then. Not in GT6 where it modulates braking and stabilizes braking into the corners. A common practice is using ABS-1 then tuning the car for maximum oversteer. The ABS countering and controlling oversteer on entry, then using the oversteer in the set up to rotate at apex. Exit becomes trickey with this set up because being entirely focussed on oversteer that is controlled by ABS on entry, on exit your left with a car prone to, you guessed it, oversteer, so this set up style needs week LSD settings to keep from snapping out and sensitive to power oversteer. Week LSD allows to mash the gas to exit.

Its a common style, I call it "Easy Aggressive" Where the driver brakes into the corners late and hard, high lock at apex, mash the gas on exit. While there is nothing wrong with it, its a beginer style, fluffed with terms like "trail braking" or "late braking" when ABS is doing the work, and allowing the driver to blur the limits and further allows a terrible set up to complete the corner with its flaws masked.



Would it be better to turn the ABS-1 off then? And for a more simulation/realistic feeling what settings would you recommend?
08-15-2015, 08:52 AM #977
Jounijkk
Do a barrel roll!
@Ode
Well done. Lap times are ok and I know Your setups are normally very gently to tyres. Cs tyres and 500pp, really scary idea.

Are You sure that there were no errors in Your setup post ( amount of ballast and position, arb )? I ask this because Your setups are normally pretty ok for me, but this Evora setup is really difficult. It's more difficult than it should.

I'm pretty sure that there are not very big differences in our driving style with 86/brz, but with Evora there must be huge difference somewhere. I really don't know where that difference is. Could my short and aggressive gearbox give too much power and revs during cornering and therefore I loose rear end control? Maybe it's just better to let car roll to the apex and put throttle on clearly after apex and use longer gears during corners. I test, when I'm back home.

@Bread, if You have time, could You please try Odes setup. You are more analytical than me.
@Fatbaps, You gave good idea to try Evora with abs on, just to see is how big is the difference compared to abs off. I have never drive this car with abs on, so it's new experience.

Jouni

The following user thanked Jounijkk for this useful post:

Fatpabs
08-15-2015, 10:47 AM #978
OdeFinn
Bounty hunter
@jouni, that posted setup was just direction where to go, current is made forward from that, using zero ballast, just power limiter to drop 450, I'll put it here for you to see and test.

As I said, it's not ready yet, but now it's not so raw as first tune was.
My sin is perfectionism with keeping body weight distro on original, coz I want drive mid engine car as mid engine car, leaving throttle steering and diving nose, I have reduced bad behavior of that to minimum, or where I want it to be.
MR/RR cars need their own driving style and I'm not killing it with ballast.

93/94
4.99/9.65
7/6
6/6
5/5
0.3/1.3
0.00/0.06
5/6 bb

Gearbox stock->260kmh, then gears and last final.
3.210
2.229
1.658
1.310
1.080
0.936
Fg 3.832
(This is just what there is now, will alter a lot later, stock 260/250/240 will work fine also)
LSD 15/27/19
Standard clutch
Power limiter 86.5%
No ballast, no oil change, no body rigidity improvement.


Tires SSR Professor VF1 Golden(third on list) standard size

The following user thanked OdeFinn for this useful post:

Jounijkk
08-17-2015, 02:36 PM #979
SiNiST3R
Samurai Poster
Crumby I'm having internet BS but should be all settled with a new service provider this week fingers crossed.

I'm eager to try out some of the set ups and get some tunes up. Hope y'all is having a good summer too, its Hot out here, but I'll take it over snow any day lol
08-17-2015, 05:02 PM #980
Jounijkk
Do a barrel roll!
@Ode, Bread

My test result is boring and other way very interesting.
Boring part is: I can't drive with this setup ( I tried a lot )

After boring part I started to change this setup. I wanted to learn what makes this so difficult. One direction was to move setup closer to mine but this wasn't very interesting.

After that I started looking for the one change what makes the car drivable for me. Now the interesting part: it was front camber. I changed it to value -3,50. After that the car changed dramatically to better direction. Then I changed rear camber to value -0,60. No other changes. With very minor changes, Odes direction for setup is very interesting

Now the car was quick and very drivable. Cambers might be far from optimal, because I had to stop testing, but at least this result is very important for me. I find it interesting, because the problem was rear end and the solution was front end camber. It's also interesting how much cambers are affecting the behaviour of the car.

The value in the front was very high for me - I have made stupid restrictions for me, like the camber values should be between xx and zz etc. In the future I try more open mind different values and watch closely different examples of setup.

Jouni
08-17-2015, 08:14 PM #981
OdeFinn
Bounty hunter
@Jouni, can you explain what car did when you tried it as is?
Hunting reason, guessing already, input lag from wheel, cause settings. This car needs precise steering wheel control, zero deadzone or you end up struggling with snake.
08-17-2015, 08:38 PM #982
Jounijkk
Do a barrel roll!
@ Ode

I just lost control of rear end. Most problems I faced with lift off oversteer. Very huge problem for me.

Difficulties in turn 1, 2, 5 and last, sometimes turn 4. Turns 5 and last were most problematic for me. The car was too lively - extremely small mistake in steering or throttle and You spin.

Changing cambers helped a lot.

Jouni

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