GT5/GT6 touge tuning advice thread

here you can post some questions or guides you have about how to tune cars in gt5 and later on gt6. maybe that can help me out of being so slow on gt5 xD

so heres the first set of questions:

1. what PI on gt is comparable to our usual forza PI levels?? or are different PI's common on gt?

2. what are the go for parts so to say the MUST-HAVES in gt touge?

3. how much does setting up a car for touge (only talkin setup here not upgrades) differ from how to do it on forza??

4. is there a manual clutch option?

5. if so how much sense does it make for controller-players? manual shifting seems unreal fast as it is already

6. why is this friggin 86 levin not appearing at the used car dealer? jk jk

1. I would say:
480pp ~= B500
490pp ~= A575
500pp ~= S650

so every 10pp ~= 75 PI (It's more complicated than that but this is just a rough estimate based on power/weight ratios)

2. The same parts you would put on your car in Forza I guess.

3. A lot, not sure why exactly but I run soft suspensions on FM4 but stiff as hell springs in GT5.  Physics system is pretty different.  Also the way you tune springs in GT is based on a 1:20 scale, kinda confusing at first.

4. For wheel users only.  But the manual gear shifting without a clutch is near instantaneous anyways.  Actually, upgrading the clutch in GT5 DOES make a noticeable difference.

5. You don't need to worry.

6. Used car dealerships are randomly generated so you have equal chances of getting one today or next week... or year lol

ok that helped.

so whats up with the 1:20 scale on springs??

on that note i recently run pretty stiff springs on forza too with medium to soft arb and stuff. i do so since i started trying out this "spring rate formula" wesmane came up with.

maybe i should try using it on gt and see what happens there.

I thought 450PP was like B class for GT5. My 86 is around 1800 pounds with 200 horsepower and it's only 430PP. I have to put a supercharger on it to even get it to 450PP with 220 horsepower, and the only way to even get a 86 near 480 would be to get a lvl 3 turbo and the S.Shigeno 86 which totals out to around 280 horsepower. That's way too fast for B class style races in my opinion.

Hmm well I based it off my 480pp MR-S which was like 200hp/870kg which is about right with B500. The main difference is that Race tires don't increase your pp, neither do transmission, chassis or suspension upgrades. The only thing that affects pp are upgrades that increase your hp or decrease your weight. Imagine if you upgraded an 86 with just Race weight reduction and Race engine parts. You could probably get to like 250hp in B500 I think.

I don't even think an FC3S can make it to 480pp. Also, 10pp = 75PI? 10pp is about 15 or 20 hp according to that.

StrawberryGL wrote:

I don't even think an FC3S can make it to 480pp. Also, 10pp = 75PI? 10pp is about 15 or 20 hp according to that.

Yep.  And I have a 500pp FC with 360hp.  It's a beast.

betadood wrote:

the only way to even get a 86 near 480 would be to get a lvl 3 turbo and the S.Shigeno 86 which totals out to around 280 horsepower.

I know what you mean. I had an EK9 that I wanted up in 500pp but I needed the huge ass turbo for it. I installed the medium turbo and settled for 480pp instead and my lap times were faster actually. Turbo lag in GT5 is REAL.

The thing with GT is that most all the handling/transmission parts don't add any pp the only thing that will is performance/weight parts with some exceptions. Also if you look at a horsepower average per class in forza this is how I look at it
425: C
450: B
475: A
That's how I look at it but the mods will prob ask what we all think and come to a conclusion.

All my cars in Forza that are in B class are 250 hp and under. All the stock B class cars are 280hp and under usually, so those estimates are probably way off.

Now I see what you mean, that's pretty accurate i'd say.

Personally 480pp is way too high for me, and i'm probably going to stay around 425 - 450. My 450pp FC weighs practically nothing and is up to 260hp, while my B class FC in forza is slightly heavier and has 214hp.

Really? When I did touge in GT5 almost everyone was using 500pp cars that had average power/weight ratios of 380hp/1200kg which to me is perfect really. Most dudes on the street with modified cars run ~400hp so it's realistic. Plus having sport tires instead of slicks makes it even better.

So I did a comparison of two of my cars from forza to gran turismo,

Forza 4                                      GT5
B500 AE86 170hp 1850lbs          450PP AE86 220hp 1850lbs
A600 GC8 307hp 2350lbs            500PP GC8 345hp 2350lbs

500PP seems a little high but could work for A class, same with 450PP and B class. My fastest lap on tsukuba in the AE86 was a 1:00 while on forza it is a 1:02. The way I see it we could do 425-450 for B class and 480-500PP for A class. Personally I would like something around 430PP for B class so I don't have to supercharge my AE86, and anything from 480-500 would work for A class.

I'm thinking 430pp B class, 480pp A class? I guess it would depend on if you prefer higher power or lower power.

GT6 might have a different PP system so anything decided on GT5 won't necessarily apply...

Which is why i'm waiting to get into GT and just kind of messing around on 5. I'd like it to stay around the same power as Forza 4 B class was, just with lower grade tires, maybe a little more powerful as well.

StrawberryGL wrote:

Which is why i'm waiting to get into GT and just kind of messing around on 5. I'd like it to stay around the same power as Forza 4 B class was, just with lower grade tires, maybe a little more powerful as well.

FC vs supra when I get GT5???

Its a totally different game, we honestly can make up our own classes that have nothing to do with forza etc

yeah sure. i was just wondering what kind of pp would be comparable to what we are used to on forza. i didnt even know which direction to go for when it came to that

Clutch927 wrote:

StrawberryGL wrote:

Which is why i'm waiting to get into GT and just kind of messing around on 5. I'd like it to stay around the same power as Forza 4 B class was, just with lower grade tires, maybe a little more powerful as well.

FC vs supra when I get GT5???

Definitely, though you should probably just skip it and get 6 in a couple weeks.

Mind-charger wrote:

Its a totally different game, we honestly can make up our own classes that have nothing to do with forza etc

That's what we're trying to do. If we don't have a class system I could decide I like 450pp, and then when I try to race other people their cars are different from mine so it's not a fair race. Beta might use 425pp, Kraze might use 480pp, so I can't race either of them without retuning the car for their level. Then there's no standard for how fast you are around a track since everyone has different level cars.

StrawberryGL wrote:

Definitely, though you should probably just skip it and get 6 in a couple weeks.

so excited i just preordered me one of the last anniversary editions available in my area can you say 1 million credits? haha

@Strawberry -

What I mean is, everyone is trying to figure out what PP is equal to B class, I say we just try to find something that grants access to many more cars then Forzas B class did, Not to mention the courses in GT5 are not as tight so we should have a bit more powerful cars to compensate.

We can always make our own classes, for example if we make a Touge 500, which could be limited at 500PP etc etc

I have a nice course made if anyone wants to test it out with me

I can work with 400-430PP but that is it for me, a 220hp 86 is plenty of power and I don't want to use turbos or superchargers just so I can keep up in horsepower.

betadood wrote:

I can work with 400-430PP but that is it for me, a 220hp 86 is plenty of power and I don't want to use turbos or superchargers just so I can keep up in horsepower.

I just think limiting it in the lower 400s for the primary class of car we would be running would once again limit a bunch of cars. For example any heavier AWD car can't even run stock in that class, Evos and Skylines start at 450ish

I just want to incorporate GT5s strong point, which is basically everyone can pick their own car and not really overlap, We have multiple years of many cars and a few different versions to work with

That's why we should have at least two classes of racing, one for lower powered NA style cars and the other for high powered super cars. It's going to be impossible to fit every car into the same pp range so we need at least two different ones. Trying to figure out the PP range right now is kind of pointless anyways as GT6 is probably going to change the numbers around.

And Beta you can always use a GC8 for 480pp-500pp but yeah let's wait for GT6 it's just 3 weeks away.

For anyone who still hasn't gotten GT6 yet, or just got it and learning the tuning:

The LSD makes a huge impact on how the car drives. For example, dropping the accel from 40 to 10 sharply increases the steering response on the car, but does put it at more risk of oversteer. Still, like anyone else here would say, fiddle until you feel it's right for you. Also, shoot for getting a 50:50 axle ratio, even if you have to use ballast and power limiter/oil to achieve the index you're looking for.