My GT-R SpecV '09 Ultimate Re-Tune

315
United States
raleigh/nc/us
YungRap
This is my best tune for the gt-r. enjoy!

This is fully modded with ALL upgrades.

Aerodynamics: R 12
Transmission: Top Speed 230
LSD: Initial F 20 R 10
Accel F 35 R 48
Braking F 30 R 15
Torqur Diff: F 23 R 77
Suspension: Ride Height F -15 R -10
Springs F 13.3 R 12.1
Damp(Ext) F 9 R 8
Damp(Comp) F 8 R 7
Sway Bars F 5 R 6
Camber F 3.1 R 2.1
Toe F -0.02 R -0.02
Brake Balance F 7 R 6
 
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I like it. Although I never install all the engine upgrades on non super light or non super cars. A car like this is too heavy and doesn't have the stopping power to handle 800hp+ IMO. My GT-R SpecV has 623hp and 519 ft-lb. It does have every other upgrade though. I got through the extreme class Super GT races with this baby and it had the stock tuning settings at the time. But this setup definitely feels better. Thanks for sharing.

UPDATE: After taking this baby to the 10 lap extreme class Super GT race at Suzuka, I have to say this tune is a beast! It feels great at this track. It's really the perfect car for this race series. Especially my 623hp version. The AI drivers stay about 2-3 seconds behind the whole time so I never just leave them. They're just far back enough to make me remember that if I make a mistake, I'm done. I loved this car with the default tune but now I really love it.
To the others: stick with just the ECU, intake and exhaust upgrades for the engine. You'll get a perfectly balanced car that way.
 
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I like it. Although I never install all the engine upgrades on non super light or non super cars. A car like this is too heavy and doesn't have the stopping power to handle 800hp+ IMO. My GT-R SpecV has 623hp and 519 ft-lb. It does have every other upgrade though. I got through the extreme class Super GT races with this baby and it had the stock tuning settings at the time. But this setup definitely feels better. Thanks for sharing.

That what the brake balance controller is for ;)👍
 
You sure the spring rates are correct w what you have? Just tried your setup compared to lowering.the car 4 clicks and bumping up the springs a tad.... and your setup was half a second slower than my non tuned setup
 
UPDATE: i just retuned my gtr-r and now it handles better. i updated the tune. let me know what u think. thanks for all prior feedback.
 
OMG. Simply put...NO. For me, this latest rendition is totally off my brotha. At Suzuka anyway. Too bad we can't save setups in GT5, or else I would just revert back to the old setup. But, as it stands, I'm gonna have to ask you to at least post the old one back in a separate post so that I can have my old car back.
 
To the OP: please don't take offense, because I mean no disrespect, but those settings show a general lack of understanding of proper suspension setup. In real life, camber and toe settings like that would result in an extremely poor performing car, not to mention that it would completely destroy the tires in no time flat.

The damping rates are too low for the spring rates being used in the front (if your car is a little bouncy over rough sections of the track, this is why), and the differential settings, while not terrible, could certainly be optimised to get rid of the understeer that you no doubt are experiencing with these settings.

Again, this is meant to be constructive, so please don't take offense, I'm just trying to help. While I'm no engineer, I have a decent bit of real life suspension setup experience with tracking my cars over the years, and would be happy to give you some tips if you like. Cheers...
 
thanks for the advice oversteerin. i dont know much about cars i just did what felt like was improving overall car performance. please feel free to tweak it out and post your setup here for me. what would a better lsd setup be?
 
thanks for the advice oversteerin. i dont know much about cars i just did what felt like was improving overall car performance. please feel free to tweak it out and post your setup here for me.

What I would recommend, without having driven the car yet, is something along the lines of this as a starting base to tweak from, and you can make small changes to suit personal preference and/or adjust the balance of over/understeer:

Suspension settings:

Spring rates: (F) 13-13.5, (R) 11.5-12.5
Damping Ext: (F) 8-9, (R) 7-8
Damping Comp: (F) 7-8, (R) 6-7
Sway Bars: (F) 4-5, (R) 5-6
Ride Height: (F) -15, (R) -10

Alignment settings:

Camber: (F) 3.0, (R) 2.0
Toe: (F) -.02, (R) 0.0 (Add + toe, a.k.a. toe IN at the rear if it feels unstable on corner entry, add a tiny bit of - toe, a.k.a. toe OUT if the car understeers)

Diff settings:

Initial torque: (F) 20, (R) 10
Accel: (F) 35, (R) 45-50
Braking (decel): (F) 30, (R) 15
Torque split: (F) 30, (R) 70

Brakes:

(F) 6-7, (R) 4-6

Tires:

Medium racing compound on all 4 is a good starting point, but you may find that running a softer compound on the front than the rear helps eliminate any excess understeer you're left with after you've done everything you can do with the suspension. Try medium compound race on the front and hard compound race on the rear if you run into this. You'll have to buy both sets, which is expensive, but well worth it. 👍

Anyway, these settings should be a good rough starting point for a front engine, AWD car. This type of layout generally suffers from a bit of understeer, and these settings should help the car be a little more willing to rotate, as well as improve responsiveness and stability. Keep in mind these general guidelines: if the car is understeering, stiffen the rear or soften the front, but keep damping rates in a proportional relationship to the spring rates. That's all for now, but I'll check back in on ya later. Let me know how it works out... :cheers:
 
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thanks again oversteerin. i updated it once again and with your base, and a little tweaking it does drive with less understeer. thanks.
 
Jeremy, I saw the updates to the settings in your original post and they look good - I'm glad I was able to help. Also, I don't know what the downforce range is on the GT-R, but keep in mind that the more downforce you add, the higher the spring/dampers need to be to compensate. Your current spring/damper rates are already high enough for a moderate amount of downforce, but if you find that the car is understeering in high speed corners, either reduce rear downforce or add front downforce. If front downforce is not adjustable, reduce rear downforce or increase rear springs/dampers rates to compensate. 👍
 
front downforce not adjustable, but i have the rear downforce to 12 which i think is pretty low but is better for turning. i dont see any loss in stability at high speeds though. thanks again oversteerin.
 
Watching many sports at the moment. Will check it out after Auburn has been declared SEC champion and has earned a definite spot in the National Title game!
 
going to try the oversteerin tune tonight, see how it compares to this:

Hey all!!

Thanks to everyone that is using my setup for this car.
I would have to say its a real B**ch to tune but i
have a new setup that i want folks to try.
After hours of test runs i believe ive come up with
some settings much better than the ones in my last post.
Just a couple things....

1) ive found that "not" transfering the majority of the torque
to the rear of this thing solves alot of issues. 40/60 is ideal
because i found that the front wheels actually work to "pull"
the car into the inside.

2) setting the LSD properly is crucial.

ok so enough babbling, here they are......

Aero 7 why?.... downforce in the rear causes understeer

Trans 242 top speed

LSD:
Initial 10/10
Accel 30/20
Braking 15/55

Torque Diff 40/60

Suspension:
Ride height -15/-10
Springs 13.5/14.5 why stiffer in the rear?.....it may sound funny but if you read the manual in the suspension section it says stiffer rear generates oversteer.....i thought they were kidding but apparently not...lolzzz!!!
Dampers(Ext) 6/6
Dampers(Comp) 5/5
Sway bars 2/2
Camber 2.0/0.5
Toe -0.10/-0.35

Brake Balance 4/6

There it is. Have fun. let me know how it goes. and feel free to make
your own tweaks to this.
 
What I would recommend, without having driven the car yet, is something along the lines of this as a starting base to tweak from, and you can make small changes to suit personal preference and/or adjust the balance of over/understeer:

Suspension settings:

Spring rates: (F) 13-13.5, (R) 11.5-12.5
Damping Ext: (F) 8-9, (R) 7-8
Damping Comp: (F) 7-8, (R) 6-7
Sway Bars: (F) 4-5, (R) 5-6
Ride Height: (F) -15, (R) -10

Alignment settings:

Camber: (F) 3.0, (R) 2.0
Toe: (F) -.02, (R) 0.0 (Add + toe, a.k.a. toe IN at the rear if it feels unstable on corner entry, add a tiny bit of - toe, a.k.a. toe OUT if the car understeers)

Diff settings:

Initial torque: (F) 20, (R) 10
Accel: (F) 35, (R) 45-50
Braking (decel): (F) 30, (R) 15
Torque split: (F) 30, (R) 70

Brakes:

(F) 6-7, (R) 4-6

Tires:

:
Spring rates: (F) 13.9, (R) 14.5
Damping Ext: (F) 6, (R) 6
Damping Comp: (F) 5, (R) 5
Sway Bars: (F) 2, (R) 2
Ride Height: (F) -17, (R) -14

Alignment settings:

Camber: (F) 0,5 (R) 0.5
Toe: (F) -0.10, (R) 0.16

I find this settings very nice and stable. Try it!:) In early stange of fine tuning it ill get edit if i find even better settings
 
Hi I was just wondering, where you say ALL upgrades are you also including the aerodynamics in the GT auto or just tuning shop? Just wondering as I don't want to buy them if they aren't suited to this tuning as it may adversely affect the handling.

Cheers pal
 
Hi I was just wondering, where you say ALL upgrades are you also including the aerodynamics in the GT auto or just tuning shop? Just wondering as I don't want to buy them if they aren't suited to this tuning as it may adversely affect the handling.

Cheers pal

Yes. All aero and a wing.
 
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