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Old 04-19-2021, 04:20 PM   #1
240-FAN
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Default Nivomat vs converter rear suspension

The nivomats on my 1991 940SE are on their way out slowly. I was wondering if thereís any difference in ride quality between replacing with new nivomats vs switching to shocks and springs using a conversion kit?
The cost of 2 nivomats vs the conversion kit on IPD (Using Bilstein touring) is about the same.
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Old 04-19-2021, 05:03 PM   #2
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I did the conversion myself for about $90 using Toyota Sienna or Previa (can't remember which one) springs and shocks from rock auto, I just had to fabricate the bar that goes across where the nivomats attach at the bottom. However I have no experience with good nivomats to compare the ride quality mine were completely blown when I bought the car.
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Old 04-19-2021, 09:47 PM   #3
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That’s interesting. I’m afraid though my welding/fabrication skills are sub par at best for me to attempt something of that scale on a suspension component.
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Old 04-19-2021, 11:45 PM   #4
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Keeping the car level is a great asset, IMHO.
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Old 04-20-2021, 03:01 AM   #5
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Doing the conversion saves you from having to ever pay for nivomats in the future.

I have the ipd conversion kit but I got it when it first came out, and had to go through a couple different springs. Its probably better now.
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Old 04-20-2021, 07:43 PM   #6
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Originally Posted by johfraser View Post
Keeping the car level is a great asset, IMHO.
Lol I agree. After 2 days of being parked, the rear is about 1.5” lower in than the front.


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Originally Posted by daijoubanai View Post
Doing the conversion saves you from having to ever pay for nivomats in the future.

I have the ipd conversion kit but I got it when it first came out, and had to go through a couple different springs. Its probably better now.
That’s good to know, I got a set off Phil on here and I’m hoping the ride won’t suffer compared to the Nivomats. Any idea when the improved their springs?

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Old 04-20-2021, 08:22 PM   #7
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Originally Posted by 240-FAN View Post
Thatís good to know, I got a set off Phil on here and Iím hoping the ride wonít suffer compared to the Nivomats. Any idea when the improved their springs?
No clue. But I bought the conversion kit in 2005, so its been a while.

I don't really have a comment on ride since I also went with bilstein hd's
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Old 04-20-2021, 08:56 PM   #8
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No clue. But I bought the conversion kit in 2005, so its been a while.

I don't really have a comment on ride since I also went with bilstein hd's
I might switch to those down the line. The fronts need to be done as well. Would you happen to have a picture of the rear wheels from your car? Iím curious to see what the clearance is between the wheel well lip and tire. On my car, the top portion of the tire is hidden by the wheel well and looking at images online, thatís not how they should be...
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Old 04-20-2021, 11:11 PM   #9
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Yeah I had the sagging rear end as well, just not quite as bad as yours. I don't know if I have a good picture, but it just brings it back to stock height.
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Old 11-23-2021, 12:22 PM   #10
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Bumping this thread back up - are there any write ups/previous threads where the steps on doing this conversion can be found? I tried the search but I’m probably not using the right key words.
I’m going to do an oil change and park it for the winter. I was planning on doing the swap over the winter if it’s not too terrible of a job.
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Old 11-23-2021, 12:38 PM   #11
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https://www.bneshop.com/collections/...rear-coilovers

nivo conversion.
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Old 11-23-2021, 04:38 PM   #12
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I pretty much did the 2nd version in this thread.
https://www.volvoclub.org.uk/faq/Niv...nversion1.html
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Old 11-24-2021, 09:20 AM   #13
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Thank you for the link!

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Originally Posted by VB242 View Post
I pretty much did the 2nd version in this thread.
https://www.volvoclub.org.uk/faq/Niv...nversion1.html
Perfect, Iím going to try the first method using the IPD kit that I purchased off a member here. Did you have any advise for the removal part of the Nivomats and the old springs?
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Old 11-25-2021, 09:48 PM   #14
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Got a follow up question. Where are the control arm bolts on these IRS cars? I read there are 3 14mm bolts and 19mm bolt that needs to be undone to lower the rear control arm to allow for the spring to be removed. Is this accurate?
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