Swift Sport Spring review for ISF!
#1
Driver School Candidate
Thread Starter
Swift Sport Spring review for ISF!
I've been lurching for a while on this forum but as my first post I figured it should be something worth giving back to the forum for all the info I've collected from here.
Now I've been thinking of lowering my car with lowering springs for a while but there isn't really that big of an option out there.
I was doing some research and found that the most popular springs out there are Eibach and Tein springs.
There is a slight problem with these options for me. Tein is softer than stock and the Eibachs are progressive which makes the car ride rather sloppy. And coming from the sport compact background the springs never really had a really good review in markets that are flooded with lowering springs. I've heard of the both sagging and not really performance oriented.
This is when I came across the news that Swift might be making lowering springs for our cars.
For those of you who do not know who Swift is they are a spring manufacturer in Japan and probably one of the biggest out there.
www.swiftsprings.com
Just from google I can find endless number of posts some even saying that the Swift springs handle better than some of the lower end coilovers, especially in the Mitsubishi Evolution crowd.
http://forums.evolutionm.net/evo-x-t...008-evo-x.html
http://www.evoxforums.com/forums/showthread.php?t=38230
http://forums.evolutionm.net/evo-tir...-reviewed.html
http://www.s2ki.com/forums/index.php...pic=813701&hl=
http://www.the370z.com/brakes-suspen...-reviewed.html
Just google it and you will see that in a lot of the performance oriented vehicles people rave about Swift springs.
They apparently released the spring for the ISF a month ago and so I decided to purchase a set from Ravspec.
Thanks Mark!
I just wanted to say that the drop is perfect for me. The car is well balanced and it's cornering is much sharper, with less roll. With the tein and the EIbach I feel like they lose a little bit of the ISF feel. But these springs feels like it was a good step forward for my vehicle. If your looking for a performance oriented spring with a drop this in my opinion is the way to go.
Here are the installed pics.
If there are any other users post up your feedback.
Now I've been thinking of lowering my car with lowering springs for a while but there isn't really that big of an option out there.
I was doing some research and found that the most popular springs out there are Eibach and Tein springs.
There is a slight problem with these options for me. Tein is softer than stock and the Eibachs are progressive which makes the car ride rather sloppy. And coming from the sport compact background the springs never really had a really good review in markets that are flooded with lowering springs. I've heard of the both sagging and not really performance oriented.
This is when I came across the news that Swift might be making lowering springs for our cars.
For those of you who do not know who Swift is they are a spring manufacturer in Japan and probably one of the biggest out there.
www.swiftsprings.com
Just from google I can find endless number of posts some even saying that the Swift springs handle better than some of the lower end coilovers, especially in the Mitsubishi Evolution crowd.
http://forums.evolutionm.net/evo-x-t...008-evo-x.html
http://www.evoxforums.com/forums/showthread.php?t=38230
http://forums.evolutionm.net/evo-tir...-reviewed.html
http://www.s2ki.com/forums/index.php...pic=813701&hl=
http://www.the370z.com/brakes-suspen...-reviewed.html
Just google it and you will see that in a lot of the performance oriented vehicles people rave about Swift springs.
They apparently released the spring for the ISF a month ago and so I decided to purchase a set from Ravspec.
Thanks Mark!
I just wanted to say that the drop is perfect for me. The car is well balanced and it's cornering is much sharper, with less roll. With the tein and the EIbach I feel like they lose a little bit of the ISF feel. But these springs feels like it was a good step forward for my vehicle. If your looking for a performance oriented spring with a drop this in my opinion is the way to go.
Here are the installed pics.
If there are any other users post up your feedback.
#2
I just wanted to say that the drop is perfect for me. The car is well balanced and it's cornering is much sharper, with less roll. With the tein and the EIbach I feel like they lose a little bit of the ISF feel. But these springs feels like it was a good step forward for my vehicle. If your looking for a performance oriented spring with a drop this in my opinion is the way to go.
Any specs F R on the actual drop?
#4
Driver School Candidate
Thread Starter
I have owned Tein springs but I went back to stock and I have a buddy that has Eibachs on his.
Advertised drop on this kit is 1inch in the front and .6 in the rear.
Spring rate for it is 9kg in the front and 8kg in the rear.
The ride is very smooth. All the inconsistencies in the road are absorbed by the spring, so I can safely say that these springs are more compliant than stock. The springs are firmer, there is less roll, and it doesn't bottom out at all. If I were to compare to Eibach or Tein though I would have to say that Those 2 springs feel boatier (if thats a word). The main reason for this is because I believe it is because like I said earlier, teins rates are waaay soft, and Eibachs are progressive. You will immediately feel that the Swifts are much more planted.
My friend agrees that the Swift springs rides better than the Eibachs.
I'm extremely happy with them so far, Im not going to lie I am pretty picky about these suspension tidbits for my cars. I can safely say I reccomend these springs. I will be autocrossing this weekend. So I will let you know how they do performance-wise.
BTW. Juanca that picture looks sick. Are you holding down your brakes while your driving in that picture?
Advertised drop on this kit is 1inch in the front and .6 in the rear.
Spring rate for it is 9kg in the front and 8kg in the rear.
The ride is very smooth. All the inconsistencies in the road are absorbed by the spring, so I can safely say that these springs are more compliant than stock. The springs are firmer, there is less roll, and it doesn't bottom out at all. If I were to compare to Eibach or Tein though I would have to say that Those 2 springs feel boatier (if thats a word). The main reason for this is because I believe it is because like I said earlier, teins rates are waaay soft, and Eibachs are progressive. You will immediately feel that the Swifts are much more planted.
My friend agrees that the Swift springs rides better than the Eibachs.
I'm extremely happy with them so far, Im not going to lie I am pretty picky about these suspension tidbits for my cars. I can safely say I reccomend these springs. I will be autocrossing this weekend. So I will let you know how they do performance-wise.
BTW. Juanca that picture looks sick. Are you holding down your brakes while your driving in that picture?
Last edited by cfls; 11-18-10 at 09:07 AM.
#5
Lexus Champion
Thanks very much for the review! I didn't even know Swift had a set out for the F, this is awesome information, very helpful and gives F owners another spring option! Glad to hear you're enjoying the ride
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#8
Rookie
iTrader: (15)
Swift springs are awesome. Unlike many companies who put out lowering springs so you can 'slam' your car, Swift actually cares about retaining good ride quality and improving handling (slamming the car is not the way to go). They would never release a product without thoroughly testing their springs (on the track), which is why they don't have a long list of applications, unlike other brands out there who wind coils just for the sake of getting them on the market.
I replaced my stock springs on my coilovers with 1kg/mm stiffer springs and not only did I get less body roll, but the ride was smoother thanks to its superior ability to be compliant over bumps.
I replaced my stock springs on my coilovers with 1kg/mm stiffer springs and not only did I get less body roll, but the ride was smoother thanks to its superior ability to be compliant over bumps.
#9
Former Sponsor
iTrader: (8)
hey cfls, thanks for the post and write up. Yes Swift spring is one of the best in the market mainly because of their consistency on their spring rate.
These are full linear, non-progressive, which is what you need on lowering spring / non coil over setup.
For more info and pics, see here
https://www.clublexus.com/forums/clu...ml#post5941913
These are full linear, non-progressive, which is what you need on lowering spring / non coil over setup.
For more info and pics, see here
https://www.clublexus.com/forums/clu...ml#post5941913
#11
Tech Info Resource
iTrader: (2)
hey cfls, thanks for the post and write up. Yes Swift spring is one of the best in the market mainly because of their consistency on their spring rate.
These are full linear, non-progressive, which is what you need on lowering spring / non coil over setup.
For more info and pics, see here
https://www.clublexus.com/forums/clu...ml#post5941913
These are full linear, non-progressive, which is what you need on lowering spring / non coil over setup.
For more info and pics, see here
https://www.clublexus.com/forums/clu...ml#post5941913
#12
Driver School Candidate
Thread Starter
step linear is the actual term for it.
The portion that looks progressive acts like a helper spring. So when the shock fully decompresses (going up a driveway, jacking up the car, or cornering really hard) the spring doesnt play. The progressive end fully collapses with the weight of the car.
So yes it is a linear spring.
The portion that looks progressive acts like a helper spring. So when the shock fully decompresses (going up a driveway, jacking up the car, or cornering really hard) the spring doesnt play. The progressive end fully collapses with the weight of the car.
So yes it is a linear spring.
#14
Tech Info Resource
iTrader: (2)
step linear is the actual term for it.
The portion that looks progressive acts like a helper spring. So when the shock fully decompresses (going up a driveway, jacking up the car, or cornering really hard) the spring doesnt play. The progressive end fully collapses with the weight of the car.
So yes it is a linear spring.
The portion that looks progressive acts like a helper spring. So when the shock fully decompresses (going up a driveway, jacking up the car, or cornering really hard) the spring doesnt play. The progressive end fully collapses with the weight of the car.
So yes it is a linear spring.
They may work just fine - I'm not disparaging their ability to control wheel motion, but they surely aren't linear as advertised.
"Step linear" sounds like some new term from the marketing department. It does not describe what the springs do. Many years ago these were correctly marketed as "dual rate" springs.
#15
Driver School Candidate
Thread Starter
http://www.tuninglinx.com/html/suspension-springs.html
Its not a marketing term buddy.
2 distinct rate is called a step linear spring.
A helper spring also has rate in it. So if a coilover has a helper spring until that helper spring is compressed it is also considered a step linear rate.
A progressive spring progresses from one rate to another. A step linear rate has one spring rate until it is fully compressed and then the second spring rate kicks in.
The reason why it is advertised as a linear spring is because the spring rate of the spring mounted on the vehicle would be a linear rate, because the secondary rate is already fully compressed.
Its not a marketing term buddy.
2 distinct rate is called a step linear spring.
A helper spring also has rate in it. So if a coilover has a helper spring until that helper spring is compressed it is also considered a step linear rate.
A progressive spring progresses from one rate to another. A step linear rate has one spring rate until it is fully compressed and then the second spring rate kicks in.
The reason why it is advertised as a linear spring is because the spring rate of the spring mounted on the vehicle would be a linear rate, because the secondary rate is already fully compressed.