Understanding Shock Fast & Slow Bump/Rebound Settings

[Stroker Ace]

Using LmS Setup Guide For GTR2 I am able to make adjustments to the shocks slow/fast bump or rebound settings by identifying what the car's handling characteristics are and using his suggested settings to cure the problem. Say for instance I'm understeering on turn entry and exit. (Not a fast turn and rear wing adjustment) He suggest hardening rear or soften the front slow bump and rebound. This helps but my question is what is this doing to the suspension to help the understeer? I would like to understand and make these shock adjustments without using the chart. Most adjustments I understand without help but shocks have ALWAYS been a mystery to me.

After downloading Tom Goodall's setups I'm blown away seeing how much his shock settings differ from the default ones. They are not even close and they work. Using suggestions and curing a problem is fine, but I want to know why it cures them.

Sorry for the long winded question. Thanks in advance.

[night_owl2007]

Using LmS Setup Guide For GTR2 I am able to make adjustments to the shocks slow/fast bump or rebound settings by identifying what the car's handling characteristics are and using his suggested settings to cure the problem. Say for instance I'm understeering on turn entry and exit. (Not a fast turn and rear wing adjustment) He suggest hardening rear or soften the front slow bump and rebound. This helps but my question is what is this doing to the suspension to help the understeer? I would like to understand and make these shock adjustments without using the chart. Most adjustments I understand without help but shocks have ALWAYS been a mystery to me.

After downloading Tom Goodall's setups I'm blown away seeing how much his shock settings differ from the default ones. They are not even close and they work. Using suggestions and curing a problem is fine, but I want to know why it cures them.

Sorry for the long winded question. Thanks in advance.

would like to know a little more about this myself too- ive read spads car setup guides and motec guide and got the gtr2 handbook, but im still not too sure when it comes to bump/rebound on my setups, im so crude with setups that if a track is bumpy i higher the fast bump (+) and rebound, and have the springs one or two clicks off soft as can be- and have ride height .5cm higher than usual- but for all i know this may be making things worse- if any experts wanna chime in and give some detailed advice, it would be great! :thumbup:

[vondutch51]

Hey guys, well I felt the same way Stroker when I first started to get serious about going fast. Here is something both you and nightowl (and anyone else interested in the why and how of setting up your car.) should find helpful. Although it was written for GTR not GTR2 I have found that the principles hold true and that this is THE BEST guide to setting up your car and going faster. I've uploaded it to filefront as it is to big to post as an attachment here.

Link:http://files.filefront.com/Motec+Beginners+Guiderar/;12720028;/fileinfo.html

Don't be fooled by the title this is by far the most detailed and theoretical setup guide around. Hope it helps.:-)

[night_owl2007]

thanks vondutch, got it, i'll check it morrow and i dl'd tom goodalls setups too, i'll see what i can learn
i'll let ya know what i think of the guide vondutch

thanks again :-D

[Stroker Ace]

Thanks vondutch
I just downloaded and started reading thru the PDFs. Beginners Guide ll PDF, about 3/4 the way down has a good explanation and walk thru on how to start adjusting the bump and rebound until it fells right. I will start testing on the track with this info tomorrow. Adjust-Drive-Adjust-Drive. I enjoy playing with the technical side of the race car and setups just about as much as racing them. By the way you are right about it being a GREAT start to understanding setups.

Thanks for going out of the way to upload the guide on filefront.:thumbup:

[vfr]

Have a look here specific setup items (http://www.race2play.com/forum/articles)

setup tool (http://www.race2play.com/forum/list_posts/4303)

[night_owl2007]

thanks too vfr, i'll have a scan of that thread too :thumbup:

[Stroker Ace]

Have a look here specific setup items (http://www.race2play.com/forum/articles)

setup tool (http://www.race2play.com/forum/list_posts/4303)


Thanks vfr
Excellent setup material and the first 7 articles "Driving Advantage" should be the foreword to every instructional book about driving a race car.

[night_owl2007]

still yet to try the motec guide vondutch, will browse through it later, but whoa stroker ace those tom goodall setups seemed to really cure my bad consistancy, and give me maybe .5 secs a lap- really impressive- now as you said, to learn why certain changes are needed and what they're doin! :-D which is where the motec guide and the race2play link are gonna help -

thanks once again vondutch & vfr :thumbup:

[Asiel Rich]

thanks vondutch, got it, i'll check it morrow and i dl'd tom goodalls setups too, i'll see what i can learn
i'll let ya know what i think of the guide vondutch

thanks again :-D

Where did you download tom goodalls setups?

[night_owl2007]

Where did you download tom goodalls setups?

you have to register but heres the page with the setups
http://forum.racedepartment.com/gtr-2-setups/5130-complete-setup-folder-tom-goodall.html

also i thought vondutch had included those setups in his pack above?? so maybe just download vondutch's setup pack! ;-)
edit: sorry, i was in the wrong thread, the vondutch setup pack is here...
http://www.nogripracing.com/forum/showthread.php?t=40353

[EAKMotorsports]

thx for this topic.

[PierB1]

Link:http://files.filefront.com/Motec+Beginners+Guiderar/;12720028;/fileinfo.html

Don't be fooled by the title this is by far the most detailed and theoretical setup guide around. Hope it helps.:-)

The link doesn't seem to work any longer :-(

Is it me or you have a new link?

Thx!

Pier

[eppikk]

Well if you race RC cars like me you may learn a few handy tricks.

As far as i'm concerned setup is all about weight transfer.

For example if your car loses its rear end while breaking hard it means that too much weight is being transfered to the front tires, or not enough weight remains on the rear ones. So you either make the front suspension harder or do something to decrease front traction (more pressure, higher ride height etc...) If a car understeers on corner exit maybe you should increase shock stiffness, etc..
Tough pro RC cars have a thing called Droop which kinda limits suspension arm travel. Since the rear arms cant go that much down when braking the front "receives" less weight. Dunno if GTR2 has any setup option that does that.

If anyone wants I can make a thread with everything I know about this

[AllanGP]

Guys,

The link in post #3 is broken.

I've uploaded the files here at No Grip;

http://www.nogripracing.com/details.php?filenr=22569

Allan