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Koni Adjustable or Bilstein Shocks?

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Old Jan 30, 2006 | 06:09 PM
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Default Koni Adjustable or Bilstein Shocks?

Looking for shock input for my 65. I'm thinking some of you all have given these a try. I did a search and it looks like Bilstein HD over Sports but not much input on Koni. I guess I should throw KYB in there too but my sense is they are not the same quality as the other two.
Opinions please.
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Old Jan 30, 2006 | 06:51 PM
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IMO Koni's are in a league of their own. I have used them in the past on Saabs and Alfas and they improve the ride tremendously. They are generally much more expensive than other brands but you get what you pay for. The adjustability allows them to be returned to 'like new' by resetting the damper, or they can be tuned for autocrossing, etc.

Rick B.
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Old Jan 30, 2006 | 07:20 PM
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I went through the same thing recently and decided on the Konis.

My car had the white KYB's and in my opinion, they did not control the fiberglass spring properly, it bounced alot. On the front they were ok but the koni's are a bit firmer in control.

I went with the konis for a couple of reasons:
1. My brother has a set on his '72 coupe for almost 20 years and is happy with them.
2. The koni's are very were very traditionally used with these cars and have a good track record with these cars.

I have had numerous sets of Bilsteins on my european cars and they were awesome I just can't vouch for them on the vette.
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Old Jan 30, 2006 | 07:59 PM
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Default I went with the adjustable QA-1s front and rear.

The adjustability is worth the extra bucks.
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Old Jan 30, 2006 | 08:07 PM
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I'm guessing you're comparing the Koni Classic to the Bilstein Sport? $20 difference per shock between the two. However, Koni has been known to work really well with the vettes. If $40 is a negotiable amount to you, I'd go with the Konis. Otherwise I'd wait to hear from someone who has used both and can compare them. My mom works right next to bilstein (Poway, California) so I'd probably personally just go to their factory and buy them there, but that's me.
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Old Jan 30, 2006 | 08:14 PM
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How much are Koni adj? Can the shocks be adj w/o removing them first?
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Old Jan 30, 2006 | 08:25 PM
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Thanks all.
I have a VBP "Touring" susension package with the Bilstein Sport shocks. The shocks are too firm for me. I was considering the Bilstein HD but the adjustability of the "Koni Special" shocks is making me think about it. The Konis are about $100 more for a car set.
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Old Jan 30, 2006 | 09:48 PM
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Originally Posted by Taijutsu
How much are Koni adj? Can the shocks be adj w/o removing them first?
4 settings. They are supposed to be used to compensate for wear, but effectively they stiffen them up.

you have to remove them, but they are not to difficult.
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Old Jan 30, 2006 | 10:25 PM
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Another vote for the Koni's. The KYB's I had on previously would not dampen enough. They had less than 1K on them when I replaced them. I love the adjustability on the Koni's, lets you dial them in for your tastes.
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Old Jan 31, 2006 | 05:02 AM
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What about the Koni shocks made for drag racing? Can these still work well on the street or the occasional autocross?
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Old Jan 31, 2006 | 05:09 AM
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i used to have koni classics under my '77 and they performed really bad...just swap QA1 adjustable and it's all another story...
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Old Jan 31, 2006 | 08:29 AM
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I don't really think you can compare the 2 shocks to one another. One is adjustable and one isn't. If your looking for an adjustable shock, why not compare the Koni's to QA1's. For non-adjustable you should compare the Bilsteins to KYB's or Monroes. I don't think your comparing apples to apples here. Adjustable shocks will more than likely be favored every time.
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Old Jan 31, 2006 | 08:53 AM
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Originally Posted by Van Steel
I don't really think you can compare the 2 shocks to one another. One is adjustable and one isn't. If your looking for an adjustable shock, why not compare the Koni's to QA1's. For non-adjustable you should compare the Bilsteins to KYB's or Monroes. I don't think your comparing apples to apples here. Adjustable shocks will more than likely be favored every time.
What I am looking for is a comfortable ride with improved handling. I do not need to adjust the shocks for differant situations like street one week and racing the next. If the Bilsteins, or other brand, gave me the ride I want a non-adjustable shock is fine. I was considering an adjustable shock thinking it may be the only way to get the ride I want. Set it up once and be done with it. I look forward to your thoughts.
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Old Jan 31, 2006 | 09:05 AM
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Blisteins seen very stiff to me (around town), on the highway the car feels very good,so for now I will use them
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Old Jan 31, 2006 | 10:11 AM
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Originally Posted by Sky65
What I am looking for is a comfortable ride with improved handling. I do not need to adjust the shocks for differant situations like street one week and racing the next. If the Bilsteins, or other brand, gave me the ride I want a non-adjustable shock is fine. I was considering an adjustable shock thinking it may be the only way to get the ride I want. Set it up once and be done with it. I look forward to your thoughts.

Is this a BB car or SB? Do you have a steel spring or fiberglass spring? I think the Bilsteins are a little on the stiff side but they perform excellent. KYB GR-2's will give you a softer ride but the handling really isn't there. I personally haven't had much luck w/the Koni's. Any setting of a glass spring made my car a little bouncy. Some of my customers have said the same thing and they had a stiffer spring rate than I did.
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Old Jan 31, 2006 | 10:21 AM
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Originally Posted by 1971corvette
Blisteins seen very stiff to me (around town), on the highway the car feels very good,so for now I will use them
Do you have sports or HD?
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Old Jan 31, 2006 | 10:24 AM
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Originally Posted by Van Steel
Is this a BB car or SB? Do you have a steel spring or fiberglass spring? I think the Bilsteins are a little on the stiff side but they perform excellent. KYB GR-2's will give you a softer ride but the handling really isn't there. I personally haven't had much luck w/the Koni's. Any setting of a glass spring made my car a little bouncy. Some of my customers have said the same thing and they had a stiffer spring rate than I did.
SB car
284# fiberglass rear spring
460# front springs

When you talk about the Bilsteins are they Sports or Heavy Duty. I undertand there is a noticable differance in ride. The HDs being softer.
Thanks
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Old Jan 31, 2006 | 10:28 AM
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The konis are rebound adjustable only to set them to the proper rebound rate to suit your spring (or to adjust to compensate for any wear). That means if you have a stiffer spring you need to increase the rebound dampening. I find it hard to believe they couldn't be set so stiff that the car wouldn't bounce anymore, even with very stiff springs. I had a '350 something rear spring and the konis and I had them set to stiff but not full, it didn't bounce at all, cornered amazingly flat and I could drive over speedbumps without the rear bouncing or even slamming into the bump stops (rear was lowered). With the konis at the stiffest setting they are stiffer than my carrera coil overs which are valved 6/6 and have the following dampening rates:
speed (inches/sec) | rebound lbs.
01|35
02|62
03|100
04|144
05|175
06|187
07|198
08|210
09|218
10|226
11|235
12|243

Last edited by Twin_Turbo; Jan 31, 2006 at 11:04 AM.
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Old Jan 31, 2006 | 10:36 AM
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Originally Posted by Sky65
SB car
284# fiberglass rear spring
460# front springs

When you talk about the Bilsteins are they Sports or Heavy Duty. I undertand there is a noticable differance in ride. The HDs being softer.
Thanks
I've only tried the Sports. Thats a pretty soft spring. I heard the same about the sports
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Old Jan 31, 2006 | 10:51 AM
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Originally Posted by Van Steel
I've only tried the Sports. Thats a pretty soft spring. I heard the same about the sports
The rear spring is on the soft side for replacent fiberglass springs but isn't the F41 factory HD suspension only a 300# and standard rate less than 200#?
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