New shocks for backdraft!
 

Hello!

Who can tell me what shocks are the best option as an replacement part!
Probably there are some options from europe like bilstein or other european brands as I do live in germany.
Would be glad to get help!

Thanks

Front shocks KYB 361005:
Application = 85-93 VW Cabrolet, 80-84 Jetta, 75-84 Rabbit, 75-89 Scirocco.

Rear shocks KYB 343144:
Application = 58-80 VW Bettle.

Thanks spdbrake!

I use JRi double adjustable struts up front and JRi double adjustable shocks in back.

Shocks
 

Best shocks on the market bar none

.....

Jri
 

Their range of adjustment, they can go from a 250 pound spring to a 1200 lb spring without revalving. This can be a curse if you don't know what you are doing you can destroy handling if adjusted incorrectly. We only move a couple of sweeps in either direction when tuning for different surface conditions.

I have to believe that you know what you are doing with these JRi shocks, but I didn't know that shocks used a measurement of pounds like springs. My understanding is that shocks produce pounds of resistance to rate of compression and extension, like in inches/sec or velocity. Springs, on the other hand, produce pounds depending on their spring rate and the amount of compression. Suspension adjustments are a mystery to me, but I can understand how modern race cars probably have a computer controlling the shock settings depending upon the speed of the car and the racetrack conditions.

.....

Shock forces
 

You are correct that shock forces in pounds are generally measured in inches per second. I skipped some steps just to illustrate the value of JRI's.
The higher the spring rate you run the greater the required rebound damping is. This is greatly simplified because frequencies, unsprung mass and other factors are involved. My car operates generally in the 1" to 2" per second range in an autox. If I increase my spring rate I also need to increase my rebound damping to maintain the same rebound velocity with the higher rate spring. When I was running Penske's I switched from a 1200 lb spring to an 800 pound spring and had to re-valve the shock to accommodate the new spring rate. You could do that with a JRI by just readjusting the shock.
My Porsche has electronic automatic damping control based on velocity of the suspension and many other vehicle parameters. If it were legal in our class (SS) I would have JRI dampers so we could tune the car more precisely to surface conditions. There are aftermarket electronic controls for the Porsche shocks too but they are also not legal in our class. In general as grip on a given surface comes up due to temperature, rubber on the track etc we increase rebound damping and the inverse. We also can effect dynamic balance of the car. You need really repeatable adjustments in a shock to do that and in my opinion JRI's are the best generally available short of the Multimatic DSSV shocks used on the new Ford GT and several GM products, very expensive though. Hope this helps.
.

Adjustments
 

I suggest you read some of Carroll Smith's books such as "Tune To Win".

.....

Questions
 

Your questions have so little technical value that they cannot be answered with any specificity. It appears that you are just another low IQ troll who derives pleasure from making stupid comments on a serious forum. I was warned by a good friend on Club Cobra to ignore you in the first place. I should have listened to him.

It may be prudent to do a little research on CSX #3170 and his successes in the competitive arena.

.....

cbreez, Just stick with air shocks.... But make sure you get them with the auto leveling option... :LOL:

I have the KYB rear shocks that spdbrake listed and, I believe, fit a VW bug, so must be for a light vehicle application and probably is appropriate to try on a BDR. I am still searching for a better spring/shock combo. But it would be nice if there were a metric for shocks, like lbs/in/sec, so that one could determine where one was in the scale of damping to go along with the spring metric of lbs/in. Then, one could shop around for an adjustable shock that was in the range of the shock rating that seemed close to the desired value just like spring rates.

Kobura,

If you wanted a reasonable priced adjustable, Koni has some.
Externally 50/50 single adjustable (rebound and compression both adjusted at same time) These give roughly 100% increased dampening over Stock when at Max settings.

Front externally adjustable (via knob while installed) 50/50 dampening. PN 86411048Sport
https://www.ecstuning.com/b-koni-par...86411048sport/

For the rear they're adjustable but require full compression and turning the body to change dampening. 50/50/dampening. PN 80-2149
https://www.lmperformance.com/709063...hock-rear.html

I ordered the KYB shocks, that spdbrake listed!
I will give it a try for street use!
Thanks for the information !

.....