Beware, users of older 200 degrees wheels (and possibly unsupported wheels)

[shirakawaa]

Today I found out that even with the steering setting set to "Professional", it looks like GT5 still applies some kind of steering assist with my wheel (an old 200 degrees GT Force wheel, the PC version which should be exactly the same as the PS2 one).
At low speeds and the wheel at full lock (100 degrees to either sides in my case), the car's wheels appear at full lock too.
However, as speed increases, even though the wheel controller is still at full lock, the car's front wheels angle visibly decreases.
This is most evident when hitting something with the wheel at full lock. Upon impact, the car's front wheels angle suddenly increases.

My conclusion is that with old wheels there is still some kind of assist applied, regardless of the assist setting in the option menu. It makes sense after all, since 200 degrees would be twitchy with fast cars (in GT Academy 2009 this was the case with my wheel).

It's possible that this happens with unsupported wheels like the Logitech G25/G27 and Fanatec wheels too.

If it does, then until full support is achieved these wheels are kind of crippled in functionality (since other settings such as feedback strenght and the "power assist" don't work either).

Can anybody confirm?

 

[INSTG8R]

Well from what I can see from the latest patch and that options screen the "older" Non-900 degree wheels are effected by the steering type(Amateur, Pro, Sim) The other 2 settings for the Assist and FFB are available to all the wheels.

I say this because if you go to each settings box you will see that the DFP and DFGT are blanked out for the first setting(This is at least for me using a G25 and I have always used the DFP for my setup)

Perhaps you could provide a little confirmation of that yourself as you have a lower rotational wheel.

So from what I can see the first setting has no effect on 900 degree wheels but the other 2 do(tho I would never use the power assist and I run my FFB at 10)

 

[shirakawaa]

Those steering wheel settings have been there since version 1.00.
I'm already using the Simulation steering type (it's one of the first things I set up actually), however I still get this sort of "BMW active steering" effect which reduces the steering ratio proportionally with speed. Supposedly less realistic settings enable more assists, but I haven't tried them.
The Force Feedback strength does not affect my wheel. I have it set at 10, but it my wheel still feels quite light, excessively so, even.

To check if your wheel is affected by this undocumented assist, try doing this.
- Choose a car with quite visible front wheels, for example the Volkswagen typ-1 Samba Bus
- Go to a wide track like the Top Gear Test Track
- Go to the main straight
- Select the chase camera
- Stop the car
- Turn your wheel at full lock
- While you look back (with the chase camera this will show the front of your car), accelerate slowly. If this undocumented assist is enabled, the front wheels angle will decrease with speed. If you'll hit an object, wall or barrier, such angle will suddenly increase again.

Of course, you have to disable all driving assists affecting the steering wheel before driving.
I'll try to make a replay file to show what happens to the wheels of my cars while keeping the wheel controller at full lock.

 

[INSTG8R]

Well I suckered myself into the 4hr Enduro at Tsukaba and was just on my "pitstop" after my first hour.
I will try to check that for you soonest. I'm sure another member can test your method for you sooner than I.
Like you I set mine up for Sim steering before I even set my virtual foot on a track.

Only reason I even noticed the DFP and DFGT being blanked out on that options page was that I read the little news ticker about the "Two New Steering Controllers Now Officially Supported" and got a little excited and went right there to see if it was the G25 and G27(imagine my disappointment when I actually read the bulletin...)

But I still had a quick look thru the page anyway.

I hope you can find a solution to this. I do know that the FGT is really quite twitchy even with a G25(tho it is what I would suspect anyway considering the car) I can't imagine handling it if it was using the same "steering ratio" on a lower rotational wheel.

 

[shirakawaa]

I've attached to this message a quick replay of the problem.
What I'm describing is clearer from minute 1:00 onwards. When I steer, I'm doing it at full lock with my wheel. You can see that as the car speed decreases, the wheel angle increases. You can see that by using the "look back" button with the chase camera .

Sorry for the bad driving, I was using my wheel without force feedback, not sitting properly in front of it and with the audio muted.