Go Back   AudiWorld Forums » Audi Models » Audi S4 / RS4 » S4 / RS4 (B5 Platform) Discussion
New! Use your Facebook, Google, AIM & Yahoo accounts to securely log into this site, click logo to login  

Notices

Discussion Forums:
Reply
 
Thread Tools Search this Thread Display Modes
Old 10-22-2005, 01:42 PM   #1
bnl107
Junior Member
Account #: 32524
 
Join Date: Feb 2002
Posts: 2,771
Default Tracksports are "bouncy". Would this be related to the dampeners, the springs, both, or neither?

well, after putting about 1k miles on my Stasis Tracksports (enough for me to figure they are settled in), I'm a little disappointed with their bounciness. For example, going over a bump which would have caused the car to bounce maybe once or twice when stock will now cause it bounce four, five, or maybe more times now. I've had a couple instances on the highway when I literally had to quickly apply the brakes because I thought the bouncing was going to cause me to loose control of the car.

So my question is: To fix this, would I need to adjust the dampeners, change the springs (I am running 650f/750r now), neither, or both?

Also, if this is not a common problem, please keep in mind that I was given Eibach springs instead of the Hyperco's advertised since they had a backorder on the Hyperco's. Could this be a factor? Anyone else with the Eibachs (or the Hyperco's for that matter) have the same problem?

Thanks in advance for your help.

P.s. Maybe I should also add that I have the car set at 26" in the rear and 25.75 in the front... somewhat conservative I know, but I wanted to make sure I was high enough for the New England snow this winter.
__________________
vB Broke My Sig... and my Heart.
bnl107 is offline   Reply With Quote
Old 10-22-2005, 01:59 PM   #2
O.W. Kenobi
R.I.P.
Account #: 20137
 
Join Date: May 2001
Posts: 19,413
Default Sounds like porpoising. What are your damping settings?

I had to go pretty soft on my 700/800 Motorsports to combat that on the street. My first thought was to go stiffer, but that didn't fix it. Ryan helped me with the settings - maybe seek him out.
O.W. Kenobi is offline   Reply With Quote
Old 10-22-2005, 02:26 PM   #3
FixedWing
Senior Member
Account #: 66531
 
Join Date: Dec 2003
Posts: 7,155
Default Springs are overpowering the dampers. It is the relationship between the two.

__________________
================================================== ======================
FixedWing is offline   Reply With Quote
Old 10-22-2005, 03:33 PM   #4
OCA::DIY Motorsports
Member
Account #: 60276
 
Join Date: Aug 2003
Posts: 5,655
Default I've found a lower spring rate(I'm running 550/650)

helps with the rear damping on full and the fronts almost full. The shocks are not up to the task with higher spring rates.

I like mine now and it only has a very small amount of porposing.
__________________
SUPPORT STEM CELL RESEARCH!

"There are (shop)whores that do provide a valuable service. However, you appear as a whore with no orifices, therefore all you accomplish is space occupation." --Kartman

"Those who would give up ESSENTIAL Liberty to purchase a little temporary safety, deserve NEITHER liberty nor safety"

Benjamin Franklin
OCA::DIY Motorsports is offline   Reply With Quote
Old 10-22-2005, 04:55 PM   #5
Tomasz@Startup
Senior Member
Account #: 683
 
Join Date: Mar 2000
Posts: 7,147
Default My and few others opinion is that

the shocks are not properly (not enough rebound for street use) valved for the springs. They will be fine with lower spring rates - 600 lbs or so.

If you must run the higher rates - get Penskes or Ohlins. (Of course I am partial to Penskes.)
Tomasz@Startup is offline   Reply With Quote
Old 10-22-2005, 04:56 PM   #6
bnl107
Junior Member
Account #: 32524
 
Join Date: Feb 2002
Posts: 2,771
Default My settings are the ones they came with since the instructions specifically say not to adjust them.

__________________
vB Broke My Sig... and my Heart.
bnl107 is offline   Reply With Quote
Old 10-22-2005, 05:08 PM   #7
NO.BRAZIL (barf)
Guest
Account #:
 
Posts: n/a
Default You don't need to lower the spring rate to fix the ride quality.

The springs have less to do with the ride than the dampers. That's why Stasis Motorsports are twice as much as tracksports and come with the exact same springs.

Don't change your springs. I ride 700/800 and am perfectly fine with the ride. It does not porpouse at all and the bounciness is minimal.

I think my settings are somewhere between 1.75-2 turns from full soft in the front and 4-5 sweeps from full soft in the rear. Try that.
  Reply With Quote
Old 10-22-2005, 05:59 PM   #8
chili
New Member
Account #: 23530
 
Join Date: Aug 2001
Posts: 268
Default my setup is similar...

except i have 600/700 springs. the TrackSport dampers come from Stasis about 4 sweeps from the left (out of 10). perhaps try going up a couple of sweeps. i know those guys generally try and optimize the setup for 600/700, so perhaps your 650/750 is a little higher than they send the damners out with.

as Tomasz stated, once you start getting into really higher spring rates, you need to shell out the big bucks for the Ohlins, Penskes or whatever. i had 800/1000 springs on my TrackSports and it was just too much. however riding in Bauers car with 1000/1200 or whatever he had was very nice. of course he had the MotorSport Ohlins in there.
__________________
-chili
-> 2005 Subaru Legacy GT Limited 5MT Wagon (stock for now!)
-> 1999 Subaru Legacy Outback 5MT Wagon
chili is offline   Reply With Quote
Old 10-22-2005, 07:46 PM   #9
OCA::DIY Motorsports
Member
Account #: 60276
 
Join Date: Aug 2003
Posts: 5,655
Default Was that your opinion when I bought a set from you? I feel I should have been informed of that.

The set you sold me had 700/800. You made NO mention of what you are saying now.

I still like them(especialy with the lower rates), I just think that IF you knew what you know now then, that it was un-ethical to sell them with out informing the customer(me).
__________________
SUPPORT STEM CELL RESEARCH!

"There are (shop)whores that do provide a valuable service. However, you appear as a whore with no orifices, therefore all you accomplish is space occupation." --Kartman

"Those who would give up ESSENTIAL Liberty to purchase a little temporary safety, deserve NEITHER liberty nor safety"

Benjamin Franklin
OCA::DIY Motorsports is offline   Reply With Quote
Old 10-22-2005, 07:49 PM   #10
OCA::DIY Motorsports
Member
Account #: 60276
 
Join Date: Aug 2003
Posts: 5,655
Default I mostly agree, but for me(+40) and a daily driver I like the lower rates :-)

It still is plenty firm and corners very flat.
__________________
SUPPORT STEM CELL RESEARCH!

"There are (shop)whores that do provide a valuable service. However, you appear as a whore with no orifices, therefore all you accomplish is space occupation." --Kartman

"Those who would give up ESSENTIAL Liberty to purchase a little temporary safety, deserve NEITHER liberty nor safety"

Benjamin Franklin
OCA::DIY Motorsports is offline   Reply With Quote
Reply

Tags
adjust, bouncy, stasis, tracksports



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Discussion Forums:


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Copyright 2009 AudiWorld.com Audi Enthusiast Community

Contact Us - AudiWorld - Archive - Top