Strano or UMI lowering springs
#1
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Strano or UMI lowering springs
I'm trying to decide between Strano and UMI lowering springs. I really like the look of the UMI springs installed that UMI has on their website. I know people have good look with Strano springs as well. I drive my car in the summer only, I put on between 6-8K miles per year. I also plan to get into local scca events autocrossing, casually only, I don't plan on being competitive. Looking at running in the CAM-C class, and will probably hit 6-10 AutoX events per year.
Does anyone have any experience with the new UMI lowering springs? http://umiperformance.com/catalog/in...oducts_id=1032
I really like the amount of drop of the UMI springs, but I can't find any reports how these springs run on the street and/or at autoX events.
I'm concerned about the Strano springs not dropping my car far enough, I know Strano has specced these springs for scca and the amount of drop is a secondary benefit. My car currently has a horrendous monster truck look that I need to eliminate.
I'm looking for opinions and personal experiences. I know both companies make excellent products for our cars.
Does anyone have any experience with the new UMI lowering springs? http://umiperformance.com/catalog/in...oducts_id=1032
I really like the amount of drop of the UMI springs, but I can't find any reports how these springs run on the street and/or at autoX events.
I'm concerned about the Strano springs not dropping my car far enough, I know Strano has specced these springs for scca and the amount of drop is a secondary benefit. My car currently has a horrendous monster truck look that I need to eliminate.
I'm looking for opinions and personal experiences. I know both companies make excellent products for our cars.
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Robert Wilson III (07-17-2020)
#2
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You can also take a look at our springs as well. They offer 1.25" of drop and are available in 2 different spring rate combinations; 550 front/160 rear or 725 front 210 rear. here are some pics of cars with our springs installed for reference
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Find a Quality alignment shop near you!
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Robert Wilson III (07-17-2020)
#3
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I'm trying to decide between Strano and UMI lowering springs. I really like the look of the UMI springs installed that UMI has on their website. I know people have good look with Strano springs as well. I drive my car in the summer only, I put on between 6-8K miles per year. I also plan to get into local scca events autocrossing, casually only, I don't plan on being competitive. Looking at running in the CAM-C class, and will probably hit 6-10 AutoX events per year.
Does anyone have any experience with the new UMI lowering springs? http://umiperformance.com/catalog/in...oducts_id=1032
I really like the amount of drop of the UMI springs, but I can't find any reports how these springs run on the street and/or at autoX events.
I'm concerned about the Strano springs not dropping my car far enough, I know Strano has specced these springs for scca and the amount of drop is a secondary benefit. My car currently has a horrendous monster truck look that I need to eliminate.
I'm looking for opinions and personal experiences. I know both companies make excellent products for our cars.
Does anyone have any experience with the new UMI lowering springs? http://umiperformance.com/catalog/in...oducts_id=1032
I really like the amount of drop of the UMI springs, but I can't find any reports how these springs run on the street and/or at autoX events.
I'm concerned about the Strano springs not dropping my car far enough, I know Strano has specced these springs for scca and the amount of drop is a secondary benefit. My car currently has a horrendous monster truck look that I need to eliminate.
I'm looking for opinions and personal experiences. I know both companies make excellent products for our cars.
Both springs are excellent springs with correct rates. As mentioned the UMI springs may go a tad bit lower, we liked that because it helps us and Strano offer different springs. Since we work together having different options allows us to help the customers more. For rates we picked a little higher based on what we run on our test 4th gen that is set up for road race and does a lot of autocross events. We didn't just reach up in the air and grab rates that sounded good, we actually used them based on testing. They are street friendly rates as well.
In closing, you would be happy with both springs. Both will ride very nice for you.
If we can help anymore please let us know.
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Robert Wilson III (07-17-2020)
#4
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UMI can sell mine, and I can sell theirs too.
I know theirs are lower than mine are, which I think was the goal. There is a simple reason mine aren't that low. Suspensions need travel to work their best.
The next thing is simple folks get hung up on numbers. A LOT. I have stopped claiming any sort of drop because nobody can guarantee any exact amount. Too many variables from the starts. Cars sit at very different heights to start with. You stated yourself your car is like a monster truck. That's because it came with a much taller set of springs than cars before it. Nothing else is different. So, if you put my springs on your car, tall as it is, you might see a 2" drop. Same springs on an LT1 car might only be a 1" drop as those cars were lower stock from GM to begin with.
Then there is the way folks measure. If you measure from the ground, well, not everyone's tires are the same height. So person 1 might be a number of 26.5" where someone else gets 27" or 26.2". You can't account for that tire size measuring like that. The the variable of weight. Speaker boxes? Add weight, lowers the rear more than a car without. Drop weight on the nose? That end is higher than it would be with A/C and a stock k-member.
Form vs. Function. Now, if you look around this forum, and in the Appearance section, there are lots of photo's of cars my springs. Some with before and after shots too. Afters all look pretty much the same, which will let you know what the end result will be. If you happen to find a before/after of a car that is tall like yours, then you really get a sense of the change.
If you are wanting an exact ride height, then you should look into coil-over options.
As for rate differences. Pandora's box that involves how low you run the car. Lower means you need more rate to counter the fact you have less travel. And both those things mean bumps aren't quite as nice. Stiffer wheel rate means the wheel doesn't want to move up and over said thing as easily. Physics.
Again, I carry the UMI springs too, so if you want them I can supply them just as easily as mine.
I know theirs are lower than mine are, which I think was the goal. There is a simple reason mine aren't that low. Suspensions need travel to work their best.
The next thing is simple folks get hung up on numbers. A LOT. I have stopped claiming any sort of drop because nobody can guarantee any exact amount. Too many variables from the starts. Cars sit at very different heights to start with. You stated yourself your car is like a monster truck. That's because it came with a much taller set of springs than cars before it. Nothing else is different. So, if you put my springs on your car, tall as it is, you might see a 2" drop. Same springs on an LT1 car might only be a 1" drop as those cars were lower stock from GM to begin with.
Then there is the way folks measure. If you measure from the ground, well, not everyone's tires are the same height. So person 1 might be a number of 26.5" where someone else gets 27" or 26.2". You can't account for that tire size measuring like that. The the variable of weight. Speaker boxes? Add weight, lowers the rear more than a car without. Drop weight on the nose? That end is higher than it would be with A/C and a stock k-member.
Form vs. Function. Now, if you look around this forum, and in the Appearance section, there are lots of photo's of cars my springs. Some with before and after shots too. Afters all look pretty much the same, which will let you know what the end result will be. If you happen to find a before/after of a car that is tall like yours, then you really get a sense of the change.
If you are wanting an exact ride height, then you should look into coil-over options.
As for rate differences. Pandora's box that involves how low you run the car. Lower means you need more rate to counter the fact you have less travel. And both those things mean bumps aren't quite as nice. Stiffer wheel rate means the wheel doesn't want to move up and over said thing as easily. Physics.
Again, I carry the UMI springs too, so if you want them I can supply them just as easily as mine.
__________________
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
The following 2 users liked this post by Sam Strano:
d-mob (09-15-2023), Robert Wilson III (07-17-2020)
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Robert Wilson III (07-17-2020)
#7
Teching In
Thread Starter
I'm going with the Strano springs, I want to get into SCCA stuff, that is what Sam specializes in. Sam I'll be sending you a PM!
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#9
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#10
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Very happy how the car turned out. Pretty sure the front of the car dropped ~1.25" not sure how much the rear dropped.
Sorry for the horrible cell phone pics.
Before:
After:
New parts installed: strano springs, koni str.t shocks, umi adjustable roto/roto lca's, founders lca relocation brackets, founders poly/rod adjustable panhard rod. Now I'm just waiting on Strano front/rear swaybars that are back ordered for one to two weeks.
Sorry for the horrible cell phone pics.
Before:
After:
New parts installed: strano springs, koni str.t shocks, umi adjustable roto/roto lca's, founders lca relocation brackets, founders poly/rod adjustable panhard rod. Now I'm just waiting on Strano front/rear swaybars that are back ordered for one to two weeks.
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Steven503 (02-05-2021)
#11
On The Tree
Any update on how this thing rides?
I also have a Z28. I already have umi upper arms, lower moog bushings front and rear, and ball joints waiting to go on. Now Im just left with trying to decide on shocks and springs or sway bars.
I have a metal knocking sound and feel it through the body front and rear on dips and potholes at highway speeds. Both upper and lower uppers have major play.
I also have a Z28. I already have umi upper arms, lower moog bushings front and rear, and ball joints waiting to go on. Now Im just left with trying to decide on shocks and springs or sway bars.
I have a metal knocking sound and feel it through the body front and rear on dips and potholes at highway speeds. Both upper and lower uppers have major play.
#12
Teching In
Thread Starter
Any update on how this thing rides?
I also have a Z28. I already have umi upper arms, lower moog bushings front and rear, and ball joints waiting to go on. Now Im just left with trying to decide on shocks and springs or sway bars.
I have a metal knocking sound and feel it through the body front and rear on dips and potholes at highway speeds. Both upper and lower uppers have major play.
I also have a Z28. I already have umi upper arms, lower moog bushings front and rear, and ball joints waiting to go on. Now Im just left with trying to decide on shocks and springs or sway bars.
I have a metal knocking sound and feel it through the body front and rear on dips and potholes at highway speeds. Both upper and lower uppers have major play.
I put on 5-6K miles per year (spring-fall), driving to and from work, around town, and at autoX. I got in 2-3 autoX events this summer and I was very pleased with this setup. I ended up with the UMI sway bars since Strano was back-ordered; no regrets there.
#13
On The Tree
Yeah, I'm already running 18x9.5 spyder wheels which have a 35 sidewall. I think I am going to get the umi springs, str.t shocks and then strano sway bars. Should transform this Z28 into a new car almost.
Harsh ride won't bother me. I have 2 kids that ride in the back half the time, so I think the slightly stiffer umi springs will help there. Plus it's grocery getter too.
Your z28 looks great man! l like clean and simple.
Harsh ride won't bother me. I have 2 kids that ride in the back half the time, so I think the slightly stiffer umi springs will help there. Plus it's grocery getter too.
Your z28 looks great man! l like clean and simple.
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Robert Wilson III (07-17-2020)
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You can also take a look at our springs as well. They offer 1.25" of drop and are available in 2 different spring rate combinations; 550 front/160 rear or 725 front 210 rear. here are some pics of cars with our springs installed for reference
Attachment 589996
Attachment 589996
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Out of the office, but checking in from the road. That. Was. Awesome.
__________________
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion