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UMI Releases New Product: 3rd Gen Lowering Springs

Old 10-25-2018, 08:42 AM
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UMI Releases New Product: 3rd Gen Lowering Springs



1982-1992 GM F-Body Lowering Spring Kit, 1"-1.5" lowering

Great for corner carving, daily performance driving, auto-x and stance improvement

UMI P/N 2461

WEBSITE LINK HERE

$259.99/SET OF FOUR



UMI’s performance lowering springs are built to lower the 3rd Gen approx. 1” - 1.5” and increase the spring rates for a crisp handling experience and better stance. UMI springs are Made in USA of 5160 CrSi wire up front and 9254 CrSi wire in the rear. The 600 lb/in front rate and 200 lb/in linear rear rate reduces floating and body roll while still allowing for comfortable cruising and performance handling. Think of it as permanent sport mode! These springs work with the popular Koni and KYB shocks and struts as well as with other factory style dampers. As an industry leader in the muscle car suspension industry, UMI is proud to bring you the best spring in the business. Designed in conjunction with a leading NASCAR engineer, we are proud to offer the highest quality spring choice available.100% designed and manufactured with pride in the USA.

Features: Consistent rates and only the best materials (premium Chrome Silicon wire) ensure your cars sits properly for years to come.Linear spring rates (600 lb/in front, 200 lb/in rear) provides a firm yet comfortable ride and incredible handling.No more floating feeling.Suitable for Pro-Tour, Auto-x and general cruising.Works best with Koni, KYB or other equivalent standard mount strut and shock. 100% Made In USA











Last edited by UMI Sales; 10-25-2018 at 11:18 AM.
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Old 10-25-2018, 12:28 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

What's the ETA for the rear weight jacks? Will you also sell the front and rear lowering springs independent?
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Old 10-25-2018, 12:34 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

Thanks for the inquiry.

We can indeed sell the springs independently.

Our goal is to have the rear weight jacks ready for Black Friday but that's an internal goal (external now that I posted it on the interweb I guess). As with any goal it depends on variables like spring supplier, weld shop busy-ness, etc.

If you're not subscribed to our newsletter where we make the announcements you can do so here.

thx

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Old 10-25-2018, 08:51 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

That Camaro sits very nicely.
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Old 10-26-2018, 05:08 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

It sure does! I really didn't want mine any lower than stock (hate worrying about scraping on stuff), but damn that looks good. Sensible spring rates as well. Already have Konis too, hmmmmm...
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Old 11-18-2018, 08:50 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

While I am no expert the rear rate seems overly stiff for the soft front rate. I don’t remember exactly who, maybe slicktrack, but someone here suggested 4:1/front:rear was a good starting point to get these machines to handle well. May seem like a strange question but what’s the free height on these?
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Old 11-18-2018, 08:59 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

Send me a message to [email protected] to remind me to measure the free height.

In general a passenger car tends to push (understeer) so we have the rear rate raised a little bit to compensate and get the car to rotate.

As we develop the chassis on these, we'll fine tune the rates.

For the intended use on this set, the cars work great. Also there are many different sway bars out there as well as other tuning aids.

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Old 11-18-2018, 09:06 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

Oh, PS, we also have our weight jack kits both coming out and on sale for Black Friday.

The weight jack kits have a few other spring rate options.

Click here to sign up for the sale and general newsletter.
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Old 11-19-2018, 10:30 AM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

Keep in mind guys while these springs will and do work well on a handling car this are a great street friendly comfort spring. We have been very happy with the overall driveability of these rates, especially when combined with a set of quality shocks. For more handling based cars our weight jacks offer more rate options and ability to adjust/tune.
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Old 11-21-2018, 10:19 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

UMI - how would these compare to Eibach Sportlines?
I have a set of uninstalled new sportlines, but I also have several UMI products on my 89 Iroc that I am very happy with. Just curious what the comparison would be if you know? Only reason I ask is that I have had 2 prior and 1 current other vehicles with Eibach products that I have been happy with as well.
Thanks
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Old 11-21-2018, 10:27 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

Might be a stupid question but do these work well on verts as well. I was told once by a mechanic that vert springs are different and tough to find. He may have just been talking about stock replacements but I cant imagine how there would be any difference. Mine is an 89 iroc vert
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Old 11-23-2018, 08:28 AM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

I checked the Eibach site but can't find the Sportline rates. Anyone know them?
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Old 11-23-2018, 08:28 AM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

Originally Posted by sonic1971 View Post
Might be a stupid question but do these work well on verts as well. I was told once by a mechanic that vert springs are different and tough to find. He may have just been talking about stock replacements but I cant imagine how there would be any difference. Mine is an 89 iroc vert
I'd have no trouble using these on a convertible. Order away!
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Old 11-23-2018, 10:00 AM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

700lbs/in front and 80-137lbs/in rear. Prokit is a little stiffer at 714lbs/in front 109-177lbs/in rear.

To pointwerp, I wouldn’t use the sport line springs. They’re more about looks than performance. If I were to use an Eibach product it would be the prokit, backwards from most of their other offerings on other chassis but that’s the way it is with ours

Last edited by SilverChicken; 11-23-2018 at 11:34 AM.
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Old 11-25-2018, 09:43 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

Thank you for your info/advice SilverChicken, I'll do more research, I may use the sportline and if I am not happy will swap over to something else, likely these. I have not had a sportline kit only prokits on my other vehicles in the past.
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Old 11-28-2018, 12:08 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

I want some lifting springs so I can run some decent mud tires. Any plans for such?

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Old 01-09-2019, 06:13 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

I have a BMR K-member and A-arms has anyone tried the weight jacks from UMI with this combination (I'm not opposed to grinding etc) -- UMI Sales do you have the specs on the mating surface so I could measure before ordering... I had it in my shopping cart as well as a pan hard bar but... thought I should make sure first.
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Old 01-09-2019, 07:51 PM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

Hey, good evening.

Shoot me a message to [email protected] and I can reply with the measurements. Happy to get them for you.

rw
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Old 01-10-2019, 09:21 AM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

Here’s the business side of the weight jack.



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Old 01-10-2019, 09:26 AM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

That sits in the upper spring pocket correct?
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Old 01-10-2019, 09:27 AM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

Originally Posted by Aviator857 View Post
That sits in the upper spring pocket correct?
That is correct.
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Old 01-10-2019, 09:36 AM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

I will measure this weekend, I'll email you pics and measurements also.

With the ls1 up front my WS6 springs sit way to high. But since it's mostly street driven I don't want to make it too low so the weight jacks seem the best option.

Do you use the rubber isolator?
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Old 01-10-2019, 09:37 AM
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Re: UMI Releases New Product: 3rd Gen Lowering Springs

We don’t use the isolator. Of course you can if you’d like.

Our rear kits include an isolator.
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