Nismo VS Sport Package Springs, Struts and Shocks

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	#3 (permalink)
Jhill Track Member Join Date: Mar 2016 Location: San jose Posts: 846 Drives: 2013 370z sport Rep Power: 3384	[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.