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Old 10-05-2010, 04:44 PM   #1
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Default Koni blue lowering springs

I installed the Koni blue lowering springs with my friend about 18 months ago. Right after the installation the car seemed to be too low in front. In addition the front left side was lower than the front right side.

After that I asked two car mechanics to check my car. No one could find anything wrong with the installation.

My car has also the Koni Sport Yellow shocks. To get the both front sides in balance, we had to set front left spring perch in the top position. The other three spring perches had to be set in the middle position. The car was better but still too low in front. Now after two summers and about 6000 miles the springs seem to be collapsed more. You can see pictures here:
http://s1176.photobucket.com/albums/x340/kurkonmavat/

I just heard that the Koni products are covered with 2 years guarantee but should I throw these blue springs in the trash and buy other springs?

Last edited by Marko; 10-05-2010 at 04:57 PM.
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Old 10-06-2010, 05:07 AM   #2
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Am I really the only one who has had problems with these Koni blue springs? I have searched this forum and Miata.net forum but I can't find anything.

Could somebody please tell if these kinds of blue Koni springs have collapsed before or if they have had any other quality problems

Last edited by Marko; 10-06-2010 at 05:19 AM.
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Old 10-06-2010, 12:16 PM   #3
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Buy some ebay coilover springs and start over for $50 and go from there.
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Old 10-06-2010, 03:04 PM   #4
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every set of springs I've installed for myself or customers in the last 10 years has had these types of issues. are you sure the springs aren't supposed to be lower in the front compared to the rear? as far as lower on one side compared to the other, I always put the taller one on the driver side. helps balance the car when the driver is in it.
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Old 10-06-2010, 03:28 PM   #5
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does that say 107 on the front spring, as in 107 lbs/in?
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Old 10-06-2010, 04:58 PM   #6
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Quote:
Originally Posted by spoolin2bars View Post
every set of springs I've installed for myself or customers in the last 10 years has had these types of issues. are you sure the springs aren't supposed to be lower in the front compared to the rear? as far as lower on one side compared to the other, I always put the taller one on the driver side. helps balance the car when the driver is in it.
I have seen another car that has exactly the same springs and shocks. It looks very balanced. It is not low in front and high in rear like my car. The owner of that car drove my car and said my car feels heave in front.

I did not notice that the other front spring would have been taller and there was no markings or instructions about this.

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Originally Posted by Braineack View Post
does that say 107 on the front spring, as in 107 lbs/in?
I don't know what this 107 means
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Old 10-06-2010, 05:09 PM   #7
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what do the markings on the rear say? (you can spin the spring if the tire is off the ground)
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Old 10-06-2010, 07:28 PM   #8
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Quote:
Originally Posted by Marko View Post
I have seen another car that has exactly the same springs and shocks. It looks very balanced. It is not low in front and high in rear like my car. The owner of that car drove my car and said my car feels heave in front.

I did not notice that the other front spring would have been taller and there was no markings or instructions about this.
it's not gonna look taller when they're not in the car, and of course they aren't gonna say anything about it. but obviously one side is sitting higher right? if you don't wanna buy coilovers, just swap the frt. springs side to side. atleast it'll be better than it is now. or don't, maybe you should just sell it.
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Old 01-13-2012, 01:46 AM   #9
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Originally Posted by jacob300zx View Post
Buy some ebay coilover springs and start over for $50 and go from there.
Actually I was just looking at those tonight... Are they any good? I read a lot of posts of replacement springs sagging and other issues as well. I would not like to install something that is going to need replacement in a few months... What is a good option to lower the car somewhat (.8"~1.00") and not break the bank?
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