G25 300 degrees lock to lock instead of 900 in GTR5

[rbrown77138 0]

I am trying to reduce a G25 from 900 degrees to 300 lock to lock.  Please tell me what controls the direction in the GT5 game.  Is it the encoder on the end of the motor.  If it is, I am planning to intall a new encoder wheel with 180 holes instead of 60 on the encoder wheel.  If my thinking is correct, Gt5 will think that I am turning say right 450 degrees, but in real time only 150 degrees.  Is my thinking correct,  If any of you experts out there can give me some feedback, I would certainly appreciate it, thanks. Robert Brown.  email:  [email protected]

[Krassi 692]

Hi Robert , GT5 calibrates the wheel automatically to the degrees of the car that you drive at the moment. If you drive formula it will be like formula not 900.In other PS 3 games like F1 2012 for example you can change linearity and saturation in the options and the wheel will be 1:1 to the formula wheel  - 270 degrees.

 

So this hard work to change optical wheel sensor is waste of time by my opinion;)

[rbrown77138 0]

Thank you for your input, but I drive Gran Turismo 5, and everything that I have read does not allow anything but 900 degrees. I am designing a system that will allow 300 lock to lock, or 900 lock to lock. I want to choose the ratio, I don't like the idea of the game telling me what ratio to drive.

[Krassi 692]

I understand your point, I just cant see how you will produce optical wheel sensor with so many holes:) I know how fragile is the original  and you want to build 3 times more holes...But maybe you have the answer already and after you did it I `ll be happy to see it. I have G27 too. And about GT5 - the game gives you realistic degrees of the real cars or closer to them.And  you must cheat G27 not GT5  how you turn the wheel.Because G27 calibrates itself with this holes no matter what system you use PC or PS3, And here comes the question : If your mod is succesfull , how you will play open wheeler formula car in GT5 with your 300 degrees chetaed G27 that is 900, and GT 5 set you 320 degrees for example , knowing that G27 is 900.That means that you will have around 100 degrees , if you understand me. 320 is around 1/3 from 900 , 100 is 1/3 from 300. 

[rbrown77138 0]

I just bought a G27.  If a G27 is different that a G25 in that it adjusts the ratio to say 200, than my theory is all wrong, but I tried to race in seasonal races Cote D Azure and my G25 didn't get it.  On some of the turns I had to go hand over hand to make the turn.  It was reading 900.  Now I am getting ready to fire up my G27 to see if it adjusts to 200.  If it does, than my efforts are futile.  But if it doesn't than with my mod, the program GT5 and PS3 will think I am at 900, in fact, because of the 180 cpr wheel, the steering wheel will only turn 300 degrees, 150 right, 150 left, perfect for me and Cote D Azure.  Now the lock or stops for 300, I am going to put them on the outside of the case, because there is little room on the inside for such a mechanism.  There will be a pin that I can remove from the wheel to go back to 900 degrees.  Well if you ask how I can do either 300 or 900, I will use some type of double throw switches, one motor will have the stock code wheel on it and the other motor will have the 180 hole wheel on it.  All of this so far is theory, I won't know until I receive the 180 degree code wheel.  As to the size of the wheel, the largest that the diameter will have to be is about 1.4 inches instead of .625 inches, possibly as small as one inch.  This is not a problem because I will reposition the sensor board.  The holes and spaces on the code wheel will remain the same, so the machine won't know the difference.  Feedback is always welcome.  Are you telling me that GT5 will reduce from 900 to 200 with a G27 wheel?  If that is true than I can forget my project, I will know in a few minutes, thanks Robert Brown.

[rbrown77138 0]

Krassi, I just tried out the G27 on seasonal races, Cote D Azure and unless I am missing something, I had to tie my arms in knots getting around some turns. It is definitely locked at 900 degrees. If someone out there knows of some magic buttons please save me a lot of work, because I certainly need a tighter turn. About 300 would do it. I have been on a few forums, and unless I am misunderstanding, with a G25 or G27 in GT5 it stays at 900. Now there might be other sims that sends the G27 a code to go to a lesser ratio, but not in GT5. I always like input, because I am new to this sim world. Thanks, Robert Brown.

[Krassi 692]

Robert,If you read carefully what I wrote- GT5 gives you realistic deegrees of the cars its not 900 for all cars....you tested , but you tested with regular car maybe....but if you play a while to the moment that you can have open wheelers and F1 cars and prototypes you will see that they are 270 degree....To be sure what I am telling now I tested now too with the Red Bull X2011 Prototype car and its 180-200 degrees in the game. So if you love to drive Formula cars and karts there is no point of this mod. But if you want to play the game with 300 degrees for all cars - go on with the mod. But it will be easier to buy 270 dgrees wheel - they are cheaper, and forever locked to 270:)

[rbrown77138 0]

Hello Krassi. I have used the lesser wheels and don't like them. I drive the Ferrari F1 in GT5. I have yet to experience 270 degrees. Both the G25 and the G27 is stuck at 900. Now I suppose that I could buy a high end wheel at the cost of 700 to 1000 dollars and if my experiment does not work, than I will. In the seasonal races I have gotten first in all but Cote D Azur. I am determined to win that one also, no matter what. I don't like the brakes with the cheaper wheels. Also, I have the time, the money, and I like a challenge, so thanks for your input, but as you can see, I am very serious. Thanks for your suggestions. Robert Brown.

[rbrown77138 0]

Krassi, I reread your post and you didn't say that you are using a G25 or G27, Are you?  If you are, than please tell me the setup, because I don't get the same results in GT5, Thanks.

[Krassi 692]

Specially for you I tested with G25 I can test with G27 if you want too. I saw your videos in Youtube that you drive formula car ,but I dont have enough money to buy formula car. I can test the Red Bull X2011 and kart ..I have Jaguar prototype - I`ll test it now ...stay tuned:)

[Krassi 692]

I checked 4 vehicles now:

 

Nissan GT-R N24 - Around 400 degrees

Jaguar LM Prototype - Around 400 degrees

Racing Kart 125 - 180 degrees 

`86 Toyota - Around 520 degrees

[Krassi 692]

Please go to options and moving down you have steering options , inside you must put simulation, please check there.

[rbrown77138 0]

OK I will try that. Bob.

[rbrown77138 0]

OK, I changed to simulation, went to seasonal races, F1 challenge, Cote D Ajur.  Started the race and turned on second view where you see the steering wheel and the wheels.  Now on screen, the steering wheel when turning right, goes to 90 degrees then stops, but the wheels keep on going to 450 degrees, still the same problem.  If what you say is true than when the steering wheel on screen goes to 90 degrees the wheels also will go to full stop at 90 degrees of the G27, and it doesn't do it.  That is why I am doing what I am doing.

[Krassi 692]

You want to feel hard stop like phisical stop, just tell me now on simulation still imposible to play? making knots? The game is optimised to give you proper degrees for every car , and you just want to use 300 degree wheel ,not 900. Well but that means that you must use always the arcade style of gameplay and never simulation, because simulation will cut a piece maybe 2/3 from you 300 degrees and driving will be unrealistic.You will play in arcade mode(normal).... You will have 2 modes 300 and 900 , but if you returnt in 900 and simulation it will be the same that you have now - original g25. For me is enough when I turn 90 to left the kart 125 turns 90 to left, who needs hard stop . When you drive real car did you hit hard stop all the time to the left and right? Or F1 pilots wait to hit the hard stop when making turn? I dont thing so ... I want to see your mod and I love to read posts for modding wheels . But your mod will make gameplay on "simulation" imposible for you . Just to hit hard stop. Console racing is user frendly and not a real sim , so to abandon "simulation" mode and make g27 300 degrees - better buy Nintendo and Mario kart:)

In simulation GT5 makes 900 wheel to turn the 125 kart in 180 that is 5 times less, imagine on your 300 / 5 = 60 degrees - 30 to the left - 30 to the right:)

Ofcourse you can switch 300 to 900 and normal to simluation mode:)

[rbrown77138 0]

Krassi, I don't think you understand, at least I don't understand your reasoning. I want the formula car in Gt3, Ferrari F1 to steer correctly, that means in the actual car, when you steer right, 90 degrees. the wheels go to full stop, that would be equivalent in Gt5 to 450 degrees and when I say 450 I mean the wheels, not the steering wheel. Now to replicate the actual formula car the steering wheel should go to 90 right and 90 left and the wheels will go to max. In gt5 to get the tires to go to max, you have to turn the steering wheel 450 degrees to get the tires to go to max. That means the steering is not fast enough to accomodate some turns in gt5. Now I am going to find a happy medium with 150 plenty good to make the tight turns. You talk about hitting the stop, so what, at 150 degrees of the steering wheel the tires will turn the equivalent of 450 degrees, enough to make a fast turn. I don't know any other way to explain it, but the way gt5 and the g27 is setup, just doesn't get it. Don't you think in a race with full scale Ferraris they hit the stop? Besides the stops are necessary with the new setup because it has to go through the same homing process as the 900 degree setup. The sensor will count just as many holes as the original, but it will expect to stop at that number, hence the physical stop at 150 degrees.

[rbrown77138 0]

Sorry I meant GT5 not GT3 in the previous post.

[Krassi 692]

I think that better idea will be to calculate holes to do 540 degrees not 300 ... and GT5 will cut half  and you will have 270 for the formula car .... we just discusse to make your mod better 

[Krassi 692]

SO bad that I dont have F1 car in GT5 to make some tests, do you have spare one?

[rbrown77138 0]

Sorry, I don't have but one, too expensive.  I have a driving force pro, and yes, it goes from 200 to 900, but it is a piece of junk compared to a g25 or g27.  So the tests that you said you did was not with a formula car?  Anyway I tested it many times and the g25 and g27 only stays in 900.  I also have a Thrustmaster F430 and it is 270, I can drive that well except that because of the belt drive there a lag in turning, also a piece of junk.  In a fast turn, I turn the wheel, and for a short time the car goes straight, so it is hard to calculate a turn accurately.  That is why I like the G25 and G27, because it is gear driven, very direct.

[Krassi 692]

I did it with similar protypes and 125 kart .I just wanna see how is with formula car as you said 450 degrees ,its unbelievable

[rbrown77138 0]

Krassi, why would I want to drive a formula car with 540 degrees, when a real formula car has 180 degrees. I am not only after realism, I am also after performance. A formula car in GT5 doesn't react like a real formula car at 540 degrees.

[Krassi 692]

You didn`t read carefully what I am writing . I told you 540 degrees on G25 and 270 ingame . GT5 will cut half from 540 and will left 270 degrees to you. 270 is a perfect way to drive formula.

Explaining why GT5 will cut half: Because in simulation you said formula is 450 degrees that means that GT 5 cutting half from 900.

Hope you understand. 270 is a way better than 150.