Lowering Springs Comparisons

onzedge · 01-23-2016, 12:25 PM

Quote:

Originally Posted by Trips

Hey Folks,

I've been putting this list together as much as possible.

WE have a lot of NEW and existing members who ask about lowering springs, And so I hope this will help since this will be primarily for spec comparison.

I need for folks to let me know what more is available with specs of course so I could include them to the list as this will be stickied for easy reference.

Stock.................................................. ...Drops...........................................Spring Rates

OEM Stock Springs.................................................. ...........................FRONT: 7.5K REAR: 8.0K

OEM Nismo Springs.................................................. ...........................FRONT: 8.1K REAR: 9.1K

Aftermarket Springs

Ark GT-S Lowering Springs...............FRONT: 1.4'' REAR: 1.2''.........................FRONT: 9.5K REAR: 10.7K

Ark GT-F Lowering Springs...............FRONT:1.4'' REAR: 1.0''.........................FRONT: 9.5K REAR: 10.7K

Eibach Pro Kit Lowering Springs........FRONT: 0.9'' REAR: 0.8''........................FRONT: 8.6K REAR: 9.5K

Tein Lowering Springs .....................FRONT: 0.9'' REAR: 0.7".........................FRONT: 8.5K REAR: 9.4K

Tanabe TGF150 Lowering Springs .....FRONT: 0.8'' REAR: 1.0''.........................FRONT: 8.8K REAR: 9.1K

Tanabe TNF150 Lowering Springs .....FRONT: 0.8'' REAR: 1.0''.........................FRONT: 5.9K REAR: 6.8K

H&R Sport Spring Lowering Springs ..FRONT: 1.3" REAR: 1.0".........................FRONT:? REAR:?

Swift Spec-R Lowering Springs .........FRONT: 1.2'' REAR: 1.0''........................FRONT: 10K REAR: 10.5K

Megan Lowering Springs ..................FRONT: 1.5'' REAR: 1.5''........................FRONT:? REAR:?..

Ti2000 RS-R Lowering Springs ..........FRONT: 0.6'' REAR: 0.6''........................FRONT: 8.1K REAR: 8.8K

370nellez · 03-23-2016, 11:59 AM

is megan really 1.5 drop?

i thought the lowest was ark gt s? could someone clarify thanks..

on a side note i was thinking of lowering my 2013 z on stock rays wheels on ark gt s (if that is the lowest drop) was wondering if i would need any other parts to make my alignment perfect. also after reading these comments would like to get spacers..

Breadz · 03-28-2016, 07:31 PM

Before and after with swift springs ,been on for about a week
need to take a better picture of the after but this will do for now
Top picture=stock and bottom=swifts

Thanks to kamispeed

/Angelo350Z/ · 04-10-2016, 11:24 AM

Ark GT-S

I recently switched from Swift to Ark GT-S springs. I loved the Swift springs, they just didn't lower the car enough for me. The Ark GT-S springs, on the other hand, just gives the Z a more menacing stance. With that said, my car's too low that I managed to destroy the front aero diffuser, left and right air guides, as well as bend both of my FI canisters in 48 hours. My car can literally scrape on a burrito. I'm switching to coilovers.

wheysted32 · 04-10-2016, 07:42 PM

Quote:

Originally Posted by /Angelo350Z/

Ark GT-S

I recently switched from Swift to Ark GT-S springs. I loved the Swift springs, they just didn't lower the car enough for me. The Ark GT-S springs, on the other hand, just gives the Z a more menacing stance. With that said, my car's too low that I managed to destroy the front aero diffuser, left and right air guides, as well as bend both of my FI canisters in 48 hours. My car can literally scrape on a burrito. I'm switching to coilovers.

I want your wheels.

Sent from my SM-N920V using Tapatalk

ChopsZ · 06-22-2017, 09:26 PM

Quote:

Originally Posted by /Angelo350Z/

I recently switched from Swift to Ark GT-S springs. I loved the Swift springs, they just didn't lower the car enough for me. The Ark GT-S springs, on the other hand, just gives the Z a more menacing stance. With that said, my car's too low that I managed to destroy the front aero diffuser, left and right air guides, as well as bend both of my FI canisters in 48 hours. My car can literally scrape on a burrito. I'm switching to coilovers.

This doesn't make sense to me...

Swift = 1.2" F - 1.0" R
Ark GT-S = 1.4" F - 1.2" R

That's less than a 1/4" difference front and rear going from Swift to Ark. That's like the thickness of an iPhone. How can only dropping that much more all of a sudden cause you to scrape everywhere and damage mufflers?

When I had my '91 Miata, I had it lowered on coilovers, 1.75" front and 1.5" rear. That car sat a lot lower than a Z on Ark springs and I didn't bottom out and scrape on stuff with it at all. The only issue I had was a little scrubbing on full lock in the front.

Not arguing, just trying to understand that post.

MaysEffect · 07-10-2017, 11:48 AM

Quote:

Originally Posted by ChopsZ

This doesn't make sense to me...

Swift = 1.2" F - 1.0" R
Ark GT-S = 1.4" F - 1.2" R

That's less than a 1/4" difference front and rear going from Swift to Ark. That's like the thickness of an iPhone. How can only dropping that much more all of a sudden cause you to scrape everywhere and damage mufflers?

Not arguing, just trying to understand that post.

Although the static ride height difference may be negligible, the spring rate at those heights may have a difference in excess of 50-250ib/in.

A softer spring will allow more ride undulation. Given the fact they are both dual rate progressive springs, the length and transitional rates could be massively different.

*** After further research, the swift spring actually is the stiffer overall spring. The coil diameter is larger and has a higher rate for the tighter wind coils "dead coils". The transitional rate between soft and stiffer would probably be smaller overall. So even though the ARK srpings sits a marginal amount higher, the spring travel is greater. Which ark springs is said person talking about though? Gt-s or Gt-f?

03-28-2016, 07:31 PM	#3 (permalink)
Breadz Base Member Join Date: Jan 2015 Location: Clovis Cali Posts: 240 Drives: 12 370z sport 6mt GM Rep Power: 12	Before and after with swift springs ,been on for about a week need to take a better picture of the after but this will do for now Top picture=stock and bottom=swifts Thanks to kamispeed KamiSpeed, Memphis370Z and BoneZ like this. __________________ Fast Intentions Non res CF, CF Duckbill, Stillen G3, Fujimura Diffuser, Swift Springs, 180 Headlights, Forgestar F14Bronze Last edited by Breadz; 03-29-2016 at 02:35 PM.

04-10-2016, 11:24 AM	#4 (permalink)
/Angelo350Z/ A True Z Fanatic Join Date: Feb 2013 Location: Germany Posts: 2,230 Drives: Z34 \| MK7 \| F82 Rep Power: 3662	Ark GT-S I recently switched from Swift to Ark GT-S springs. I loved the Swift springs, they just didn't lower the car enough for me. The Ark GT-S springs, on the other hand, just gives the Z a more menacing stance. With that said, my car's too low that I managed to destroy the front aero diffuser, left and right air guides, as well as bend both of my FI canisters in 48 hours. My car can literally scrape on a burrito. I'm switching to coilovers. Boomzig likes this. __________________ 2013 MB NISSAN 370Z SPORT

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03-23-2016, 11:59 AM	#2 (permalink)
370nellez Base Member Join Date: Dec 2014 Location: San Francisco, Ca Posts: 28 Drives: 2013 Nissan 370 Rep Power: 12	is megan really 1.5 drop? i thought the lowest was ark gt s? could someone clarify thanks.. on a side note i was thinking of lowering my 2013 z on stock rays wheels on ark gt s (if that is the lowest drop) was wondering if i would need any other parts to make my alignment perfect. also after reading these comments would like to get spacers..