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Author Topic:   bilstein shocks
donjuan12
Dirt Full Roller

Total posts: 38
posted June 16, 2004 08:40 PM  
We run a Dirtworks DW8 with Bilstein shocks and are having problems with scaling car. If we leave the shocks hooked up we can't get consistent numbers if we roll the car on and off the scales. We were told to bounce the car before we roll it onto the scales and that doesn't help at all. If we unhook the shocks for scaling our numbers are way off when we hook them back up. For example we had the car set with 200 lbs. of left rear without the shocks and without the driver. We hooked the shocks up and sat the driver in (who weighs 285) and we only had 150 lbs. of left rear. Can the Bilsteins have this much rod pressure? Any ideas?

maxrpm
Dirt Roller

Total posts: 6
posted June 16, 2004 08:57 PM  
Do you race the car with the shocks unhooked???My point is,scale it like it is on the track.BTW All of his 285lbs is not going to left rear,I am 260 and I only add about 35lbs left rear.And no they do not have that much rod pressure,look for something in a bind or bad spring.Good luck

juliaferrell
Dirt Freak

Total posts: 370
posted June 16, 2004 10:02 PM  
If you are using adjustable bilsteins and have them in the highest settings it may take 10 minutes to settle after you set on the pads. It is very important to wait and that is with any shock, spring combination. I like setting them on the scales overnite!

If you have variable settings around the car this is certainly going to throw a short term wrench in the program. Let it set an hour or so if you are in question.

juliaferrell
Dirt Freak

Total posts: 370
posted June 16, 2004 10:03 PM  
One other thing: Go off of your ride height and make sure its on your baselines when you look at the scales.

NJantz
Dirt Forum Champ
Total posts: 755
posted June 17, 2004 06:35 AM  
Everyone says to bounce the car, but if your like my dad he thinks that means jump up and down like a gorilla. Just push down on the car to settle it.

Everywhere I've read they say to unhook the shocks before you scale. But they never explain why.

I always unhook the Bilsteins, because they'll try and hold the cars weight in a static setting and that will effect your scale results.


zeroracing
Dirt Forum Champ
Total posts: 1875
posted June 17, 2004 11:36 AM  
i unhook mine, because they react slightly differently each time, also i figure once all are hooked up they will raise the car a small amount, but it will be about even.

also as far as settleling(mispelled) the car i bounce the front and rear sometimes, but grab the car by the halo and rock it back and forth a few times, this will take almost anybind out from anywhere in the car.
good luck
jason

nvracer
Dirt Maniac

Total posts: 127
posted June 17, 2004 11:38 AM  
With gas filled shocks you should leave them hooked up. They will add weight because of the gas pressure trying to extend them. Acts like a spring. Oil filled shocks I unhook.

donjuan12
Dirt Full Roller

Total posts: 38
posted June 17, 2004 08:43 PM  
Thanks for the advice. I bought 4 new PRO's just to make the driver happy. He won't quit complaining til we try it.

racerwilson
Dirt Freak

Total posts: 357
posted June 18, 2004 09:13 AM  
nvracer you are correct oil shocks you unhook and gas shock you always leave them hooked up. If you can't get consistant readings take a look at your shocks you may have a bent shaft. Bouncing the car should be done front and back of the car simultaneously. Bilstien shocks have a very high rod pressure and may change chassis hight up to 1/2" and that will change all of your suspension geometry.

Dustejr73
Dirt Maniac

Total posts: 177
posted June 23, 2004 05:37 PM  
I just replaced my rear bilsteens with afcos, they were adding too much spring rate and wouldnt let the car settle down entering the corners. if anyone is looking for some rear bilsteens, 4 valving, i have a set for sale with only two races on them.

dirtracer14
Dirt Forum Champ
Total posts: 1261
posted June 23, 2004 09:55 PM  
How much and what are the valving?

dirtywrench13
Dirt Freak

Total posts: 324
posted June 24, 2004 05:01 AM  
i always unhook the shocks-no matter what kind they are.

Dailey Racer
Dirt Roller

Total posts: 6
posted June 24, 2004 02:22 PM  
Our 2003 Skyrocket set-up book says to unhook the shocks before scaling. Then below it is says that if you are running Bilstiens leave them hooked up. I don't know anything about Bilstien shocks but that what Kelly's set-up book says to do.

dbradley
Dirt Freak

Total posts: 251
posted June 25, 2004 06:38 AM  
What is the best valving type to buy and why?? I guess what to buy to have the required adjustments

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