Hi Just a small update, been playing around with some set up changes , and once again thanks for the suggestions , the first thing i tried and found a really good response to on the bmw in gt3 2024 was the brakes moved them more towards the back and that gained me about 3 tenths also the spring rates made a better balance experience , on certain tracks the tyres where getting very hot so i messed about with the toe in etc and the camber only ti make a slight improvement , i kept the rear on 8 on most of the tracks i used as it did help in keeping the car more stable, still experimenting will report back thanks again.
Hey Doug, happy to hear you're having success, and thanks for the update. One of the interesting things about this is how variable the cars are in terms of setup scope. Like the differential I mentioned above, some have no adjustment, some just preload, and some have full adjustability including power and coast sides. Other settings are affected too. Like how most cars allow front roll bar tweaks. But one class of cars will be more granular, twenty steps of adjustment, where another will have two, making the choice either stiff or soft with no in-between. Like GT4 cars versus GT3 cars. A driver might like to increase entry oversteer with a softer front roll bar, but in the car with only two steps, it may go too far, or is already at its softest setting, you cannot be so fine with the change, and might have to find that balance with a different tweak. It gives all cars and classes their own challenges when looking to find the right balance. You mention brake bias, and this is usually one of my default changes, something I tweak before hitting the track. Before heading out I almost always drop pressure to 90% and bias back one or two percent. For drivers who like to trail brake, a bias shifted to the rear will help. Go too far and you swap ends when you stand on the binders. So as with everything brake bias takes a few stints to work out.
Another thing I don't see much mention of, is traction control. Traction control works by cutting power when the slip exceeds the set threshold. Obviously, having power cut is slowing you down. It's probably preferable to spinning out or sliding, but it can also cost you time. And honestly I'm not sure I really get RR's TC. What I mean is on cars that do not allow modification to the TC settings, the first three levels -- TC 1 through TC3 -- are all the same, 100% cut and .33 slip threshold. Not sure why they are all the same, unless there's more to it that is hidden. Then TC4 is 75% cut, TC5 is 50% and TC6 is 0%. Other cars allow you to tweak these values. In these cars I tend to shift it to TC1 100% TC2 90% TC3 80% TC4 70% TC5 50% TC6 0% It's worth it to fool around with this, especially on those very tight turns, where you are picking up the throttle and can hear, and feel, the power cut, which will cost you time as you accelerate out of the corner. The trade-off is more wheelspin to control, but it's worth messing around with and see if you can gain any time with a more aggressive TC level. Put increase and decrease TC level on a switch or rotary on your wheel if you can, then try different ones as you run round the track. Like turn 9, I think, at Sepang. This turn tends to be one where I get cuts as maybe I'm too greedy coming out, but knocking back the TC level gains me time around here by giving me more smash out of the corner, keeping some power to the drive wheels instead of cutting it all. In the current Silhouette competition at Sachsenring, I found some time with TC 4. Anyway, just one more setting to mess around with on the cars that have traction control in factory settings.
Typically each of the 6 tc presets consists of 3 settings. Two of those are the same for presets 1-3 but the third setting is different (something like 0.4 for preset 1, 0.35 for 2 and so on). As for what each setting does exactly who knows (although there is some info about them on the setup screen)
I think they are pretty straigh-forward. - Engine cut is by how much the engine power is reduced when TC is engaged; - TC slip is longitudinal slip (the lower the number, the more the tyre is allowed to slip in longitudinal direction before TC is engaged); - Lateral slip is the same as above, but for lateral direction.
Fair enough, what they do is described fairly well. But i have no idea when to adjust which of the two slip settings, increasing either of them just feels like more tc to me
I'm not sure either, but I'd guess you turn down lateral slip if you want to allow the car to powerslide without triggering TC too early, or you turn it up if you want more stability on exit.
If that's so, it would clear up what I don't get. What is the third thing? It's worth mentioning that some cars with ABS allow tweaking of the values too, like traction control, but personally I haven't messed around with this very much.
As for which of those changes with the default presets im not entirely sure but i think longitudinal slip is the one thats always 0.33, lateral changes with every preset and cut as you said is the same for the first 3 and then goes down
Oh, he was confirming this is what it is? I didn't quite catch that. Each step allows more lateral slip before engaging traction control?
He was and i think so. But to confirm itd be easiest to just have a look at the default setup of say a gt3 and check which values change with each preset