Springs for OEM ride height

BettyZ · 09-28-2019, 04:29 PM

Turns out the stock Nismo springs do not fit - at all - with the SPL rear mid-links. So, I need new springs with an ID of 2.5". I would like to retain OEM ride height. Car is used for "spirited" street driving. Any thoughts?

And yes, I know the answer is likely somewhere on the forum. Humor me.

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Spooler · 09-28-2019, 04:46 PM

Quote:

Originally Posted by BettyZ

Turns out the stock Nismo springs do not fit - at all - with the SPL rear mid-links. So, I need new springs with an ID of 2.5". I would like to retain OEM ride height. Car is used for "spirited" street driving. Any thoughts?

And yes, I know the answer is likely somewhere on the forum. Humor me.

Sent from my SM-G955U using Tapatalk

Look in my Aragosta thread, I would suggest 10kg/mm 7in. Swift springs that are 65mm, from what I remember. You can get them from Kamispeed. If you were going lower, I would recommend the 6 in. spring.

OptionZero · 09-28-2019, 05:20 PM

SPL themselves can get you Swift Springs. They stock some, if they dont have it, they'll drop ship from Swift directly

7 inches for OEM ride height

6 inches for serious people

BettyZ · 09-28-2019, 05:41 PM

Thanks to all. May be a stupid question but is it necessary to replace all four?

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Spooler · 09-28-2019, 06:26 PM

Quote:

Originally Posted by BettyZ

Thanks to all. May be a stupid question but is it necessary to replace all four?

Sent from my SM-G955U using Tapatalk

No just the rears. Stock springs are around 9kg/mm for the Nismo. The spring rates are posted around here somewhere for the Nismo rear springs. You may want to wait and put the midlinks on when you get coilovers.

BettyZ · 09-28-2019, 09:25 PM

Quote:

Originally Posted by Spooler

No just the rears. Stock springs are around 9kg/mm for the Nismo. The spring rates are posted around here somewhere for the Nismo rear springs. You may want to wait and put the midlinks on when you get coilovers.

Thanks! What issues might arise with rear 10kg/mm Swift springs and front stock Nismo coilovers?

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Jhill · 09-29-2019, 02:17 AM

Ok so first off it sounds like you have stock Nismo suspension? If so then swift coil over springs are not going to fit the front so your only going to be buying 2 and try to keep them as close to oem rate as possible. If you go to stiffer rear rates than stock then you’ll be inducing oversteer.

BettyZ · 09-30-2019, 10:51 PM

Quote:

Originally Posted by Jhill

Ok so first off it sounds like you have stock Nismo suspension? If so then swift coil over springs are not going to fit the front so your only going to be buying 2 and try to keep them as close to oem rate as possible. If you go to stiffer rear rates than stock then you’ll be inducing oversteer.

I have stock Nismo front coilovers and rear struts. Eibach front and rear sways. Ordered the 10k rear Swifts. Z is at stock height w Contis on stock Nismo 19's. Does it sound like I'm going to have an oversteer problem and should go ahead and pull the trigger on coilovers now? I'd prefer not to, but I can if necessary.

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OptionZero · 09-30-2019, 11:47 PM

until you get SPL front upper control arms, you will always have an understeer problem

Spooler · 10-01-2019, 12:11 AM

Quote:

Originally Posted by OptionZero

until you get SPL front upper control arms, you will always have an understeer problem

FUCA yeah.....

BettyZ · 10-01-2019, 12:14 AM

SPL FUCAs, rear camber, rear traction, and rear mid-link are all in. Still gonna be an issue?

Spooler · 10-01-2019, 12:34 AM

Quote:

Originally Posted by BettyZ

SPL FUCAs, rear camber, rear traction, and rear mid-link are all in. Still gonna be an issue?

Noop, not that I see.

OptionZero · 10-01-2019, 01:33 AM

an alignment to get to -3 front camber

i don't really understand the thought process behind all the SPL stuff and the OEM spring/shocks, but . . . whatever, i guess?

BettyZ · 10-01-2019, 06:52 AM

Quote:

Originally Posted by OptionZero

an alignment to get to -3 front camber

i don't really understand the thought process behind all the SPL stuff and the OEM spring/shocks, but . . . whatever, i guess?

One step at a time.

I really enjoy your bedside manner btw. I bet you're a pediatrician

Rusty · 10-03-2019, 11:04 PM

Hey Betty. When you get the SPL upper arms. Set you alignment to -2 camber, +6 caster, 1/16" toe in for the front. The rear -1.75 camber, and toe at 1/16" in. You'll get plenty of grip without wearing the inside of your tires out. Going to -3 camber on the front for a street car is just plain f!@king stupid. That's a track setting that you will no where get close to using on the street.

09-28-2019, 04:29 PM	#1 (permalink)
BettyZ A True Z Fanatic Join Date: Aug 2018 Location: Chicagoland Age: 37 Posts: 5,261 Drives: A Garage Queen Rep Power: 2684371	Springs for OEM ride height Turns out the stock Nismo springs do not fit - at all - with the SPL rear mid-links. So, I need new springs with an ID of 2.5". I would like to retain OEM ride height. Car is used for "spirited" street driving. Any thoughts? And yes, I know the answer is likely somewhere on the forum. Humor me. Sent from my SM-G955U using Tapatalk __________________ '14 MB Nismo \| Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs. Betty Mods

09-28-2019, 05:20 PM	#3 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,225 Drives: 15 370Z Nismo 6MT Rep Power: 214100	SPL themselves can get you Swift Springs. They stock some, if they dont have it, they'll drop ship from Swift directly 7 inches for OEM ride height 6 inches for serious people BettyZ likes this. __________________ OptionZero Build Thread

09-28-2019, 05:41 PM	#4 (permalink)
BettyZ A True Z Fanatic Join Date: Aug 2018 Location: Chicagoland Age: 37 Posts: 5,261 Drives: A Garage Queen Rep Power: 2684371	Thanks to all. May be a stupid question but is it necessary to replace all four? Sent from my SM-G955U using Tapatalk __________________ '14 MB Nismo \| Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs. Betty Mods

09-29-2019, 02:17 AM	#7 (permalink)
Jhill Track Member Join Date: Mar 2016 Location: San jose Posts: 854 Drives: 2013 370z sport Rep Power: 3384	Ok so first off it sounds like you have stock Nismo suspension? If so then swift coil over springs are not going to fit the front so your only going to be buying 2 and try to keep them as close to oem rate as possible. If you go to stiffer rear rates than stock then you’ll be inducing oversteer. BettyZ likes this.

09-30-2019, 11:47 PM	#9 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,225 Drives: 15 370Z Nismo 6MT Rep Power: 214100	until you get SPL front upper control arms, you will always have an understeer problem BettyZ likes this. __________________ OptionZero Build Thread

10-01-2019, 12:14 AM	#11 (permalink)
BettyZ A True Z Fanatic Join Date: Aug 2018 Location: Chicagoland Age: 37 Posts: 5,261 Drives: A Garage Queen Rep Power: 2684371	SPL FUCAs, rear camber, rear traction, and rear mid-link are all in. Still gonna be an issue? redondoaveb likes this. __________________ '14 MB Nismo \| Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs. Betty Mods

10-01-2019, 01:33 AM	#13 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,225 Drives: 15 370Z Nismo 6MT Rep Power: 214100	an alignment to get to -3 front camber i don't really understand the thought process behind all the SPL stuff and the OEM spring/shocks, but . . . whatever, i guess? BettyZ likes this. __________________ OptionZero Build Thread

10-03-2019, 11:04 PM	#15 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,185 Drives: 2011 Nismo GM 6M Rep Power: 2684437	Hey Betty. When you get the SPL upper arms. Set you alignment to -2 camber, +6 caster, 1/16" toe in for the front. The rear -1.75 camber, and toe at 1/16" in. You'll get plenty of grip without wearing the inside of your tires out. Going to -3 camber on the front for a street car is just plain f!@king stupid. That's a track setting that you will no where get close to using on the street. ZontheRocks and BettyZ like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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