favorite - strut/shock/spring combo?

[Bernie Benz]

Martin,

What other suspension mods have you made? i.e. strut or tower brace?  
V8 anti roll bar? S4 rear anti roll bar?
What alignment specs are you running with?

Spring spacers are easy to make. Originally Audi had 3 different  
thicknesses of spring seat isolators available, see Bentley 40.13,  
called Damping Rings. Used to adjust level across the front. The most  
common 2 lug version is 441 411 109, others NLA. Just cut a ring of  
rubber of the desired thickness and place over or under this damper  
ring.

IMO harsh ride is attributable to the selected high spring rate, not  
the damper paired with it. Further, a “resonating, vibrating ride  
with 70 mph freeway driving“ is caused by, the forcing function is  
wheel imbalance or an out of round tire surface, and is amplified by  
an under damped suspension at the resonant frequency.

Bernie


On Jul 10, 2008, at 8:06 AM, martinkuetzing at att.net wrote:

> Part 1 of 2:
>
> Over the years, I've tried to post what I have on 200q20v springs &  
> dampers, but recently, the mail list limits the size of the post to  
> less than my writeup's size.  So, I'll post this info in two emails.
>
> I happen to like the 200 being lowered about an inch, which is  
> something that H&R as well as Eibach desgined into their springs  
> for this application.  The disadvantage of lowering has been  
> driveways and speed bumps, as my Sebro exhaust sometimes gets  
> scuffed a bit.  There have been many posts about using spacers to  
> bring the ride height back up again using the springs I've listed.   
> Perhaps, some lister can provide the part numbers & sources for  
> those spacers, as I don't have that info
>
> But, the best handling IMO was from the H&R/Koni setup.  However,  
> this arrangement is harsh and caused a resonating, vibrating ride  
> with 70 mph freeway driving.  With an hour commute to and from work  
> each day, after a half-year or so, I jettisoned the setup.
>
> Eventually, I settled on Eibach/Bilstein as the best compromise for  
> me & how I drive the car.
>
> Martin
>
> Here's the first half of the writeup:
>
> Springs:
>
> Eibach (949.752.6700)
>
> M/N        Appl.         “Spring Rate”               Lowering  
> Amount (200-20V)
>
> 1506.140  ’91 100     Linear         F    128#/inch       
> 1.0”   (1.25”)
>                       Progressive    R    128-286#/inch  0.8”   (1.0”)
>
> 1529.140  ’92 S4      Linear         F    246#/inch       
> 1.0”   (0.75”)
>                       Progressive    R    188-308#/inch  0.8”   (0.5”)
>
>
> H&R  (888.827.8881)
>
> M/N        Appl.         “Working Rate”              Lowering Amount
>
> 29800   ’91 200-20V   Linear         F    175#/inch      1.5”
>                       Linear         R    230#/inch      1.5”
>
> 29616   ’91 100       Linear         F    175#/inch      0.75-1.0”
>                       Linear         F    200#/inch      1.0”
>
> 29921   ’92 S4        Linear         F    300#/inch      n/a
>                       Linear         F    350#/inch      n/a
>   He said:  “don’t even try the 29921 on a ’91 200 20V!”
>
>
> Shocks for ’91 200-20V
>
> Koni (606.586.4100)
>
>        M/N      damping (newton-meters) @ 0.33 m/s:  bump  
> (compression)/rebound
> F  86-2149SPORT              800/1350
> R  80-2630SPORT              600/1050
> (adjustment is only for rebound; max shown with adjustment to lower  
> value)
>
> Bilstein (800.537.1085)
>
> M/N      damping (newton-meters) @ 0.52 m/s:  bump (compression)/ 
> rebound
>
> For STD Springs
> F  P36-0370                 1015/1130
> R  B46-2065                  800/1200
>
> For Shorter Springs
> F  P36-0369                 1070/1195
> R  B46-2066 (12mm)           800/1200
>    BE5-2593 (10mm)
> _______________________________________________
> 200q20v mailing list	 http://www.audifans.com/mailman/listinfo/200q20v