Grand Prix Legends - Differential Setup Tutorial
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- Опубликовано: 2 сен 2017
- This is a very basic tutorial to show the effects of adjusting the differential settings in Grand Prix Legends. It can be useful for people who are new to this game, or picking it up again after a long break. This video provides a basic and stable setup to start with.
If you're interested in more in depth information, technical explanations and specific setup tips for all the original 1967 Formula One cars I can recommend the following links.
1. GPL Setup Sheet.
Any easy to use sheet that briefly explains every adjustable setting in the car setup menu.
Link: www.gplworld.org/setups-replay...
2. Setup Guide by Charlie Williscroft.
A great guide that explains all the setup options more in depth. It explains the role of differential setups with more detail. A must read if you want to get serious about setting up your car the right way.
Link: srmz.net/index.php?showtopic=1140
3. Steve Smith's Advanced Setup Guide.
This is hardcore stuff, this guide describes setups for every 1967 car in the game with incredible detail. It's a long read and it will get very technical. I would recommend to read the guide by Charlie Williscroft first. If you're still interested by then, this is the next level.
Link:alison.hine.net/gpl/smith.htm 
Игры
(Comment relevant for beginners that want more realism.) From many topics that I've read at SRMZ it turns out that the creators of the game stated that 45/85/1 is the closest realistic diff setting and deemed default 80/30 as very unrealistic setting (in terms of in-game car handling, not historical diff setting numbers, which are unrelevant and inapplicable for GPL, because GPLs physics model is not accurate enough). 80/30 is a form of assist. Low coast secures low chance of back wheel slip, and even if it happens, you can save yourself easely out of bad slip because high power straightens the car a lot. On 80/30 car feels really strange, like it's driving on rails or attached to invisible rubber string. So for people that want realistic handling - drive "right foot braking" style and use settings with power lower than coast. 45/85/1 is a good starting point to feel the difference. If you prefer less oversteer, increase number of clutches to fine tune it or lower coast a bit - 45/60/1 is easy like default 85/30, but it feels more natural - front wheels turn more under power, and back wheels are more prone to slip. Then you increase number of clutches to 4-6 on fast tracks like Monza to stabilise steering under power, or 1-3 clutches for more nimble steering on twisty ones like Nurburgring.
Also, if you use steering wheel, use realistic 540 degree rotation lock and realistic 9:1 steering ratio (possibly 10:1 on fast tracks and 8:1 "cheat" on tracks with tight hairpins like Monaco).
Mind that playing on xbox pad is totally different, and player needs to tune settings to his controller, no reason to make it harder than it is.
That is a very interesting explanation, thanks for sharing!
And with a gamepad it's different indeed, 9:1 is pretty undrivable with it, I often use at least 15:1.
Erik2Ammo Your channel is amazing, and this setup video is great for beginners, thanks a lot! GPL community is the best :) There's GPLRank, and that could indicate that GPL community is elitist... That's far from the truth, what I see is that it's all about enjoying old cars, old tracks and sharing tips and learning history of motorsport together :)
Surely, since the real cars used a "cam and pawl" differential instead of the "salisbury" type simulated in GPL, this would not be right.
As far as I can gather, the "cam and pawl" type is 100% open coasting, and 100% locked under power. Therefore, to get close to this behaviour in GPL, one would use a 30/85 ramp, with as many clutches as possible.
It won't be 100% right, but it should be much closer than 45/85/1.
I am by no means an expert. What??!! You are too polite Erik. One day I might be half as good as you.
Nice video. I'll be watching it a few more times and looking for other setup videos on this channel. Liked - of course.
Very helpful and easy to understand explanation. I used this guide on the GPL55 Lancia and shaved seconds per lap at B. Aires compared to stock setup. Many thanks.
Very helpful video. Thanks.
very good!
I copied most of the important parts of the video into the following (so you can copy it):
GPL Differential Video Transcribed:
We’ll focus on ramp angles for now, this is 85/35. The first number can be seen as “Power” and second as “Coast”. A high “Power” and low “Coast” will feel easier and more stable to drive.
(Power 85/ Coast 130) With an 85 “Power” setting, the car will react nice and easy to the throttle. And with “Coast” at 30, the car won’t oversteer to much under braking. This is a good setup for beginners, it’s very stable. But the car won’t feel very nimble, it doesn’t like to rotate much. But it’s easier to be consistent so it could be a good race setup. Next we will change the “Coast” settings from 30 to 85 (maximum).
(85/85) This is a 85/85 setup, the “Coast” setting is very aggressive. Now when you lift, the car wants to rotate a lot causing oversteer. But it’s also a lot more agile when you steer into a corner. This can be quite tricky to drive it requires much more control. The car still reacts the same under power, it doesn’t rotate too much. So next we will lower the “Power” setting from 85 to 30.
(Power 30/ Coast 85) With 30/85 you’ll get the most aggressive Ramp Angles. It will rotate easily under power, as well as under lifting/braking. This can be very hard to control, as the car feels very aggressive. But it’s extremely agile as the car will like to rotate a lot. Some of the fastest GPL drivers will use setups like this. For me as a gamepad player, it’s a bit too much to handle.
The next setting we will look at is the number of clutches. This number can (and should be) different for each car. A good rule of thumb= low number for cars that are light/have lots of torque. Heavy cars/cars with little torque can use a higher amount of clutches. To show the difference we’ll use two cars that are each opposites.
The Brabham is light and has a good amount of torque. The BRM is heavy and it’s torque isn’t that good. It has six gears. Let’s see how the amount of clutches affect the handling of these cars. While using a 85/45 Ramp Angle.
Brabham-5 clutches: With five clutches the differential will be very stiff under power. The rear wheels push the car in a straight line giving heavy understeer. This really doesn’t work for a car like the Brabham.
Brabham- 1 clutch: This number works a lot better. The car reacts as you would expect with a 85/45 Ramp Angle. Now let’s compare this to the BRM.
BRM-1 clutch: For the heavy BRM 1 clutch will make the car feel unpredictable. It creates massive oversteer. For cars like this you will need a high amount of clutches. Let’s see how the BRM drives with 5 clutches.
BRM- 5 clutches: The Bramham has massive understeer with 5 clutches but for the BRM 5 clutches results in better handling. Using the same 80/45 Ramp Angles the car handles like you would expect. The amount of clutches you should use is different for every car.
The GPL guide recommends 2 clutches for the Lotus 49.
Dang
Very useful for a car I'm tuning in a different game, Whats Differential Preload tho?
This is a great idea :) I had some understand of Ramp Angles, though this clarifies it a little extra.
You think one for the suspension can be made?
I haven't got that down yet in terms of setup.
Thanks! I think I can do a video on that as well soon.
What's "Ramp Angles"?? How i using??
It must be the fact that you're using a gamepad instead of a steering wheel but it seems (to me, at last) that you're making the car slide a lot, I can hear the tires screeching almost all the time and when I started GPL many moons ago that screeching was a "no-no". Great video, though.
You CAN'T drive GPL with a gamepad! With a wheel you can appreciate the actual effect of a 30/85 ramps: differential is "free" under coasting, so the car enter very easily into the curve, oversteering. Then you apply a little power and a 30 angle immediately lock the axis, allowing you to powerdrift out the curve at maximum speed. If you can't manage very sensibly the power, you can't drive like that. But if you have wheel and pedals... you can enjoy an incredible handling (and speed!).
hey i have a problem: my game is abnormally fast unlike in ur video.. unrealistic.. i cannot go with full speed on straights, if i do that cannot turn.. my english is not good maybe i couldnt tell my problem well but its that.. How i can make it realistic and correct?
You have to use this installer to run the game on modern pc's: gplps.wordpress.com/gplps-gpl-installer/
Otherwise it will be running way to fast, like you describe.
Alien diff on a pad is more skill than almost anyone has. 45/85/1 is the perfect balance with a wheel. Pretty much the only steering input is opposite lock :)
south africa, rip john pryce.
They are not realism in this. Is more drifting
Grab a wheel....
I did. :)