Suspension for Bumps

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Highlandor
For extension yes, but comrpression - no.

So if your dampers have extension 5 and 5 (front rear), the softer (more) compression would be 7 & 7, harder (less) would be 3 & 3.

The above comment is taken right from Highlandor.. I think he is correct it would explain a lot. In the real world the higher the clicker number on the compression dampining the more it is to resist compression but from what he says the higher the number the easier it compresses and the lower the number the harder it will compress.. The game is backwards.. This would mean for the game the stiffer the spring the higher compression number and the softer the spring the lower the number. A high spring and a low number compression would be rock hard and bounce over anything I think is what he is saying.. I always thought in the game a softer compression would be a lower number. No wonder tuneing has been a ***** Here is another quote from him.. "We race alot at Le Mans online, you can run high springs, dampers or roll bars, the bumps ar easily sorted with a well balanced setup that uses softer compression value on the dampers.

Ride is a smooth as silk and car doesn't roll at all, nor do tyres go 'red' in the indicator.
So at Le Mans, all I have to do for my setups is raise the compression and maybe each roll bar by 1 click (softer compression makes it roll more, so roll bars adjusted to compensate for this) - and voila, silky smooth ride and car doesn't roll, it feels great.
So agin going up in higher number on compression dampening is makeing the compression softer!!!! Who would of known a real shock isnt like that lol...
Here is one more.. "
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Some people think it's backwards, others just think it's goofy settings required in the game.

Since shocks are the only thing that can truly can change a cars over-under steering balance when on throttle or under braking in GT5, I feel better off using the shocks to control the car during cornering, and use other methods to reduce bump effects.
 
Taz69
WOW all this time and I had the compression wrong. AGIN on a real life shock as you start turning the clickers in on the compression damping from 1,2,3,4 the harder the shock becomes to compress. But you told me Highlander that a higher compression number in GT5 actualy makes the shock easier to compress... So if you would want the front to compress under brakeing and stay there you would have the extension on 7 and compression on 7.. And if you want it to resist compression you would have 7 ext and 3 comp Thats totally ass backwards from a real shock but if thats how the game does it ive had them backwards the whole time... On most shocks in the real world you almost always want the shock t compress easier and have more rebound dampining it it to keep the spring from pushing it back to fast.. But in most cases there is less compression dampining than extension dampining in a real world racing shock.. ive had it set in GT5 harder compression dampining than rebound cause I thought lower compression dampining number meant the shock was easier to compress.. Dang it. Thanks for the tip.
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No
 
dr slump no what? Are you saying the higher the compression damping number in GT5 the more resistance to compression the shock is?
 
Taz69
dr slump no what? Are you saying the higher the compression damping number in GT5 the more resistance to compression the shock is?
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No.
-LOWER number COMPRESSION or EXTENSION = LESS SHOCK RESISTANCE
-HIGHER number COMPRESSION or EXTENSION = MORE SHOCK RESISTANCE

Difficult to show how a high number extension reduce the weight transfer when the car roll lateral or longitudinal.
But for the compression it's easy to show. Take any kerbs at high speed over the top of a slope (better) and you will feel and see this.

In this case a RUF 3400S, stock suspension, one of the best stock suspension balance of the game.
Place, nurburgring nordschleife km 4,5 left high speed turn before Adenauer forst.

Situation 1: Stock suspension with damper compression to 10/10
comp10.jpg

The car jump very high on a hard damper.
comp10bis.jpg


Situation 2: Stock suspension with damper compression to 1/1
comp1.jpg

Same speed, same driving line , same bump..... the car don't take off and pass over the high kerb.
comp1bis.jpg


Everything must work together. Springs / dampers / ARB according to car / track / tires / driver....... every case i a special case. But it work like this for sure.
High number = more resistance.
Low number = less resistance.

><(((((°>°°°°°°°°°°°°°°°°
 
Nice praiano! 👍

The question shouldn't even come up if you're a wheel user, it's so clear. I personally feel a difference by every single step of the compression number.

Extension doesn't make such a big difference, but still clearly noticeable.
 
Thanks Dr_ Slump I use a remote so its a little different I cant feel everything the car does... So the next question is then haveing a smaller or larger split between ext and comp. Say most cars come 6/6 ext and 6/6 comp. With a split of 8/8 ext and 4/4 comp would it give a little more grip. I see some tuners on here have a split in the rear say 7 ext and 4 comp while keeping the front close like 6 ext and 5 comp. Whats the reason for the larger split would that add grip to the rear by compressing easier and holding it down longer? What would be the result with a large split up front say 8 ext and 4 comp?
 
But, having a higher compression would make you have more balance after a bump right, it will resist the suspension to bottom out.
 
Taz69
Thanks Dr_ Slump I use a remote so its a little different I cant feel everything the car does... So the next question is then haveing a smaller or larger split between ext and comp. Say most cars come 6/6 ext and 6/6 comp. With a split of 8/8 ext and 4/4 comp would it give a little more grip. I see some tuners on here have a split in the rear say 7 ext and 4 comp while keeping the front close like 6 ext and 5 comp. Whats the reason for the larger split would that add grip to the rear by compressing easier and holding it down longer? What would be the result with a large split up front say 8 ext and 4 comp?
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Often the stronger my springs settings are, the wider I set the damper values to eachother. First off, compression is mostly a bit lower than extension, let's say by 1 or 2.
Compression relatively low and extension high should let the rear deep down a little and improve the rotation and give you usually a better performance at corner exit. I don't really wanna say it increases the mechanical grip generally, because that's depending on other factors too.

There's no general golden number for the damper settings, because it always must be in harmony with the springs. You set the compression so that it doesn't hop to much over bumps (I'm not talking about extreme examples such as curbs, etc) but also doesn't let the car wallow too much.
Extension shouldn't be set too high (in GT5 is always quite high though), just so that the car doesn't bounce aka lifts over its normal ride height.

Street Racer
But, having a higher compression would make you have more balance after a bump right, it will resist the suspension to bottom out.
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Balance.....
ehm the last part is definitely correct, it supports it.
 
Of course on cars with downforce, really sticky tires, or really heavy cars, you'll need to run much higher settings through the springs/dampers/arb than on cars without, or light cars.
Generally.
 
Isn't damping just the RATE at which the spring compresses or extends?

example Spring rate 10kg (medium Spring stiffness)
Compression and Ext at values 1 each,

the car will absorb bumps at a faster rate, and the spring will travel instantaneously. but will keep the car unsettled much, like a slinky toy.

if you were to set the dampers to 10/10, the car would compress and extend at a much slower RATE , thus either scrubbing your tires over bumps(losing lateral traction in corners / understeer or wicked oversteer)

No? lol
 
Bump . . .
So I was playing with pens in class today, n I came up with question. Wouldn't having stiffer spring rates, allow the suspension to react quicker after a bump?
 
Spring rates have little to do with how quickly suspension reacts to load, that's almost totally a function of damper settings.

The following may help:

Skip Barber
Skip Barber
A stiffer bump setting slows down the motion on its corner ans speeds up the load transfer. A softer bump setting does the opposite - it allows the suspension to move faster and spreads the changes in loading out over a longer period of time. The same is true of rebound. Stiff re-bound settings will force the suspension system to move more slowly when loads are removed from its corner of the car, but the unloading of the contact patch will be more abrupt. Softer rebound settings allow the suspension to move more quickly and the unloading of the contact patch happens more gradually
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i love tight springs, they make they car react to any input so much faster. Just gotta make sure your dampers and roll bars are set right.
 

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