Nismo VS Sport Package Springs, Struts and Shocks

tzwilliam · 01-15-2015, 06:26 PM

Quote:

Originally Posted by kenchan

nismo springs on a base? will lift your car in the front especially. someone already tried that and ended up running swifts.

Going from Base+Sport Package to Base+Nismo from what I've read the ride height will be lowered 0.4", is this true?

Zoren 370 · 01-15-2015, 05:21 PM

Quote:

Originally Posted by tzwilliam

Is this a mod worth doing?

My suggestion is go drive a nismo and see if you like the stiffness the nismo brings then you should be able to answer your own question.

You will be the one driving your Z not us.

Whats comfortable with me might not be so with you.

Imo my coilovers made me feel Im driving a sports car.

Jordo! · 01-15-2015, 03:47 PM

Sort of -- they are stiffer and perform better, but really, the major advantage is that they are inexpensive.

If you want better than OEM on a budget, go for it. If you have a little cash to play with, I say pass on coilovers and get a set of Koni yellows plus swift springs.

victorofhavoc · 01-15-2015, 05:05 PM

Quote:

Originally Posted by Jordo!

Sort of -- they are stiffer and perform better, but really, the major advantage is that they are inexpensive.

If you want better than OEM on a budget, go for it. If you have a little cash to play with, I say pass on coilovers and get a set of Koni yellows plus swift springs.

I agree, but from a performance standpoint i'd never get swift springs. They're great for lowering your height while keeping the ride comfy and not blowing your stock strut, but they are progressive springs, and progressive springs are terrible for performance because they're not linear. With hard driving you'll get snap under and over steer. Either keep the stock springs or go to stiffer non-progressive springs...but that's for performance only. if you want a drop that's a different story

Read T · 01-15-2015, 05:07 PM

Quote:

Originally Posted by victorofhavoc

I agree, but from a performance standpoint i'd never get swift springs. They're great for lowering your height while keeping the ride comfy and not blowing your stock strut, but they are progressive springs, and progressive springs are terrible for performance because they're not linear. With hard driving you'll get snap under and over steer. Either keep the stock springs or go to stiffer non-progressive springs...but that's for performance only. if you want a drop that's a different story

If you are just after a drop, take 3/4 a coil off the springs

victorofhavoc · 01-15-2015, 05:10 PM

Quote:

Originally Posted by Read T

If you are just after a drop, take 3/4 a coil off the springs

HAHAHA! In true Honda style!

nis350 · 01-15-2015, 06:14 PM

FYI... Swift springs are linear and not progressive. IMO, they are probably one of the better after-market springs. There is plenty of info out there.

Quote:

Originally Posted by victorofhavoc

I agree, but from a performance standpoint i'd never get swift springs. They're great for lowering your height while keeping the ride comfy and not blowing your stock strut, but they are progressive springs, and progressive springs are terrible for performance because they're not linear. With hard driving you'll get snap under and over steer. Either keep the stock springs or go to stiffer non-progressive springs...but that's for performance only. if you want a drop that's a different story

Read T · 01-15-2015, 04:56 PM

OEM base: ?
OEM base + sport: black spring and strut
Nismo 370Z: red spring, silver strut
Nismo S-Tune: red spring, silver strut
Nismo 370 RC: "nissan genuine"

As far as I can see it, these would be the different suspension setups. I am not sure if the valving is the same for USDM v Euro v JDM cars, or if the suspension was changed at all over the years. Also not sure if the Nismo S-Tune is the same as the Nismo 370Z. Also It would be awesome to find out the valving and spring rates for the different OEM components.

FWIW I replaced my sport package suspension with used parts (still lower mileage than mine) form a Nismo 370Z. Ride is much stiffer and more responsive. No change in height.

ValidusVentus · 01-16-2015, 04:06 PM

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.

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 · 01-16-2015, 07:36 PM

The Swift type R springs are linear springs. see post #177 in the following link. This person (CFZ) has a detail review of the springs on this site as well.

SWIFT Springs in Production

Anyway, linear or not, just get what you feel is best for your driving style. I have Swift and like it.

Quote:

Originally Posted by ValidusVentus

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.

ValidusVentus · 01-16-2015, 04:12 PM

You can get a lot of grip out of the 370z stock setup. I've had the OEM dampers put on a shock dyno and tested. They have good characteristics. They might not be the stiffest and best feeling, but they are great for their purpose, make grip on bumpy roads while keeping the driver a bit comfortable.

01-15-2015, 03:47 PM	#3 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Sort of -- they are stiffer and perform better, but really, the major advantage is that they are inexpensive. If you want better than OEM on a budget, go for it. If you have a little cash to play with, I say pass on coilovers and get a set of Koni yellows plus swift springs. UNKNOWN_370, danegrey, Zoren 370 and 2 others like this. __________________ Enjoy it. Destroy it.

01-15-2015, 04:56 PM	#8 (permalink)
Read T A True Z Fanatic Join Date: May 2012 Location: Raleigh, NC Posts: 1,046 Drives: 11 Nissan 370z BC 6M Rep Power: 18	OEM base: ? OEM base + sport: black spring and strut Nismo 370Z: red spring, silver strut Nismo S-Tune: red spring, silver strut Nismo 370 RC: "nissan genuine" As far as I can see it, these would be the different suspension setups. I am not sure if the valving is the same for USDM v Euro v JDM cars, or if the suspension was changed at all over the years. Also not sure if the Nismo S-Tune is the same as the Nismo 370Z. Also It would be awesome to find out the valving and spring rates for the different OEM components. FWIW I replaced my sport package suspension with used parts (still lower mileage than mine) form a Nismo 370Z. Ride is much stiffer and more responsive. No change in height. danegrey likes this. __________________ 2011 Nissan 370z Black Cherry Sport Pkg - Daily Driver, , 1960 Morgan +4 fun car, 1986 BMW 325ES, 1998 M3 and 1996 Spec Miata - Race Cars SUPPORT TEAM WINSOME RACING - WRL, CHUMP, LEMONS Last edited by Read T; 01-15-2015 at 04:59 PM.

01-16-2015, 04:06 PM	#9 (permalink)
ValidusVentus Enthusiast Member Join Date: Jun 2011 Location: Washington State Posts: 400 Drives: #18 Z34 Rep Power: 23	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. Jordo! likes this. __________________ Mods: Dedicated caged track car, lots of things. \|\|\| Valkyrie Autosport \|\|\| Last edited by ValidusVentus; 01-16-2015 at 04:13 PM.

01-16-2015, 04:12 PM	#15 (permalink)
ValidusVentus Enthusiast Member Join Date: Jun 2011 Location: Washington State Posts: 400 Drives: #18 Z34 Rep Power: 23	You can get a lot of grip out of the 370z stock setup. I've had the OEM dampers put on a shock dyno and tested. They have good characteristics. They might not be the stiffest and best feeling, but they are great for their purpose, make grip on bumpy roads while keeping the driver a bit comfortable. carlitos_370z likes this. __________________ Mods: Dedicated caged track car, lots of things. \|\|\| Valkyrie Autosport \|\|\|

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03-21-2017, 07:32 PM	#13 (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.