Bump and Rebound settings

I never remember how this bump/rebound works too. I imagine that "softer rebound" means it is slower to recover from the bump?

 

Following video have some advices about suspension setup (dampers at 19:23):

 

You are right. I would assume he just mixed those options up somehow. To counter excess oversteer on corner entry you can either stiffen the front or soften the rear.
Explanation of the setting was correct tho, lower numbers mean less resistance inside the damper against the springs' force and hence faster up-/downward movement, higher numbers increase the resistance and slow the movement down.

 

Thanks. Just so I'm crystal clear then, setting rear rebound to a lower number will help reduce entry oversteer?

 

Dampers are probably the most complicated thing to setup on a race car, and to get them perfect for a specific track and all circumstances is near impossible. If you are oversteering in corners, I would first look at other things before the dampers. Such as aero balance, ride height, and roll bars.

That said, this is the best setup guide I have found on the internet for describing what to do in certain scenarios - click here. Scroll down to section VII where it talks about corner oversteer.

According to this, Pfalzdriver was correct that increasing rear rebound will help with entry oversteer. (edit: see below) Personally though, that is the last thing I would change. Lowering rear bump would be something I would do first. Rear rebound settings seem to help more with rotation in my experience, rather than oversteer. At least in my experience with some other games. In RR, I have never felt that the dampers play all that huge of a role, so again, I would look at other setup options first.

 

That guide... I don't know if that should be trusted, even if it appears to be official. Sections V and VII kinda contradict each other from my pov.
The majority of resources and guides I've read on suspension tuning suggest softening the rear in order to fight oversteer.*

In my opinion, yes. Personally I wouldn't limit that to rebound only tho, and I agree with nate here, dampers/shocks are the last variable in a line of more influencial settings. Changing these is really only meant for fine tuning. So if your car is oversteering in general I'd also suggest to take a look at springs and ARBs, increasing front and/or softening the rear for both in order to increase rear grip (relative to the front) and thereby reducing the cars tendency to rotate.

* Just a few sources:

And I'll recommend this page once more:

Code:

http://www.rapid-racer.com/suspension-tuning.php#Damping:%20Bump%20and%20Rebound.

I think it does a great job in explaining what dampers (and other components) do and how they influence driving characteristics.

 

Yeah, thinking about this more, I think that BMW guide mixed up the rear dampers somehow. Making them softer, so decreasing them, should help with entry oversteer. So I think they might have mixed up the front and rear rebound dampers. Increasing the front should help correct some oversteer, while increasing the rear should exacerbate the issue.

Some of the links Christian shared above are solid too. Though...

Holy mother of bad English and contradictory descriptions

 

Yeah, that racedepartment one probably also has a typo. If you look at the sentence right above that one you quoted, there they got it right and it is consistent. The one you quoted should say increase in regard to front rebound I guess..

 

Then again, if the car is going over steers, I think your bump-settings might be a minor issue at this point in the narrative.

 

Thanks for clarification guys. Indeed I agree that it is for fine-tuning only and that is exactly what I am looking for. ie I've been doing the SRS week at Monza, using 0 wing and happy with ARB settings for all the corners except Ascari where I'm losing the rear a bit, but don't want to tighten up the car for the rest of the track.

 

Sure? I'm still struggling to understand how this is implemented in R3E. From my motorbike I know you close the damper fully (hardest) and from there on you count the clicks. So it would be completely the opposite.

 

It also depends on how the adjustment mechanism was (or had to be) constructed. On this page from Koni you can see that in example one and two adjusting clockwise increases firmness whereas for mechanism three it's the exact opposite and counter-clockwise increases firmness. So afaIk there's no hard rule irl, but like Alex said, in order to keep it simple it's always been the way he said in all SimBin/S3 titles. (probably even all isi-engine based games?)

 

Thanks for the clarification! I also found a confirmation of my theory in the manual of KW suspensions so it was confusing to me from the very beginning. I wouldn't have expected that in a game with a playerbase with such a profound technical knowledge. In any other game but not here

 

Thanks @Alex Hodgkinson for an official explanation for the way it works in R3E.
As i know, most people consider the R3E damper setting as fast-damping while i conclude from what you wrote, its only slow-damping setting.

i believe your last lines are typo - Corner exit-Oversteer - same as Corner exit-Understeer ?
should it be like below ?
Oversteer:
Rear bump: Decrease
Front rebound: Increase

 

Even by reading this page, I have doubts on my understanding, cause it seems it doesn't fit with my logic.

Is it true?
More Bump = less resistance from the damper (compress easier)
More Rebound = Slower rebound (this is where my logic doesn't fit, I expect a faster one ^^)

 

Thanks for the cheatsheet Alex, I just made a pdf out of it and put it on my desktop.

Might be an idea to make a mod edit in the OP and put it there too. There's a lot of disinformation in the replies that confused the hell out of me and might confuse many others too stumbling across this thread.

 

Yes thanks @Alex Hodgkinson, I also made a copy of this list for me and my french league mates. I'm sure it will be useful soon.