Nismo VS Sport Package Springs, Struts and Shocks

victorofhavoc · 01-16-2015, 04:23 PM

Quote:

Originally Posted by nis350

You are obviously making assumption that the Swift springs are progressive and they are not. You're making statements without the fact and experience.

There are many people here have Swift springs and like them.

'Performance' is very subjective, but if you are referring to pure tracking duty, I doubt that any after-market springs with stock shocks are good enough. You probably have to spent tons of cash and replace most of the suspension components and 'TUNE' it according to the type of track.

All of the after market springs such as Swift is for those who want improvements over the OEM's with fairly low cost and Swift is one of the better one for that purpose.

Yeah I don't support any aftermarket spring without proper dampening for any racing/performance driving whatsoever. Experience I have plenty of, and I've seen the swift springs everyone has (type r) in person and they are definitely progressive.

Edit: meant that most people have, not everyone.

Read the post below:

Quote:

Originally Posted by ValidusVentus

I think if you can grab the nismo springs and dampers as a package for around 500 bucks and then pair them with adjustable anti roll bars it will be money well spent. Yes you can pick up cheap 3000000 way adjustable damping "coilover" kits for a little over 1k but who knows what the adjusters truly do and you likely don't need them anyway. Koni yellows are not a bad option but I personally couldn't tell you what range of spring they were designed to dampen. Perhaps Koni will , and you can pair them up accordingly. And just to clear up a debate here. Swift makes both progressive (Type R) springs as well as linear (Swift Race Springs) for the 370. You can tell them apart visually with a glance.

I agree with you there. For 4-500 that would be a solid deal.

I thought the swift race springs were standard fit for 3 different coilover sizes only? Do they make a linear spring that fits the stock suspension? have a link by chance?

UNKNOWN_370 · 03-20-2017, 10:10 PM

Quote:

Originally Posted by victorofhavoc

Yeah I don't support any aftermarket spring without proper dampening for any racing/performance driving whatsoever. Experience I have plenty of, and I've seen the swift springs everyone has (type r) in person and they are definitely progressive.

Edit: meant that most people have, not everyone.

Read the post below:

I agree with you there. For 4-500 that would be a solid deal.

I thought the swift race springs were standard fit for 3 different coilover sizes only? Do they make a linear spring that fits the stock suspension? have a link by chance?

Thread resurrection cuz this was annoying me!!

I have swift springs.... YOU'RE WRONG!!

THey're linear....

https://www.kamispeed.com/Swift-Spec...swf.4n905r.htm

They are designed for track use....

Swift Springs USA

Two pages of a pointless debate cuz these facts are everywhere.

Fact: Linear

Opinion: They're progressive.

s2krazyyy · 03-21-2017, 01:08 PM

Quote:

Originally Posted by UNKNOWN_370

Thread resurrection cuz this was annoying me!!

I have swift springs.... YOU'RE WRONG!!

THey're linear....

https://www.kamispeed.com/Swift-Spec...swf.4n905r.htm

They are designed for track use....

Swift Springs USA

Two pages of a pointless debate cuz these facts are everywhere.

Fact: Linear

Opinion: They're progressive.

Would like someone to chime in on this. By definition of a progressive spring vs linear, the swifts sure do look like the text book definition of a progressive spring. Not saying you are wrong but a linear spring is suppose to have a constant rate which the swifts dont have, but the company says its linear... im confused.

Jhill · 03-21-2017, 07:32 PM

[QUOTE=s2krazyyy;3630230]Would like someone to chime in on this. By definition of a progressive spring vs linear, the swifts sure do look like the text book definition of a progressive spring. Not saying you are wrong but a linear spring is suppose to have a constant rate which the swifts dont have, but the company says its linear... im confused

It probably depends on how you are counting. What swift is most likely doing is running the initial coils very soft and collapsing instantly and then once compressed it will be a 10k rate from there, just as if you had a 10k linear spring and then helper springs underneath.

So if your counting the rate from full extension then yes it's progressive just as a helper and main setup overall rate would be progressive. If your counting after initial sag (ride height) then it may be linear, just as a helper and main setup would be.

Really someone needs to put them on a spring tester and test the rate after the "drop/helper coils" have fully compressed to truly verify they are linear.

nis350 · 03-21-2017, 11:44 PM

Quote:

Originally Posted by Jhill

What swift is most likely doing is running the initial coils very soft and collapsing instantly and then once compressed it will be a 10k rate from there, just as if you had a 10k linear spring

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03-21-2017, 07:32 PM	#4 (permalink)
Jhill Track Member Join Date: Mar 2016 Location: San jose Posts: 854 Drives: 2013 370z sport Rep Power: 3385	[QUOTE=s2krazyyy;3630230]Would like someone to chime in on this. By definition of a progressive spring vs linear, the swifts sure do look like the text book definition of a progressive spring. Not saying you are wrong but a linear spring is suppose to have a constant rate which the swifts dont have, but the company says its linear... im confused It probably depends on how you are counting. What swift is most likely doing is running the initial coils very soft and collapsing instantly and then once compressed it will be a 10k rate from there, just as if you had a 10k linear spring and then helper springs underneath. So if your counting the rate from full extension then yes it's progressive just as a helper and main setup overall rate would be progressive. If your counting after initial sag (ride height) then it may be linear, just as a helper and main setup would be. Really someone needs to put them on a spring tester and test the rate after the "drop/helper coils" have fully compressed to truly verify they are linear.