what are the oem spring rates?

Supergoji · 01-01-2010, 02:35 PM

i searched around and didn't find any numbers.
what are the 370z spring rates and what are the 370z nismo rates?

klubbheads · 06-10-2010, 02:42 PM

anyone know the answer?

tjlazer · 06-10-2010, 03:17 PM

I was just going to post asking this question. I want to know what the OEM spring rates are in comparison to Eibach and H&R Springs.....

Supergoji · 06-15-2010, 01:52 AM

Bump

Da.Menace · 06-15-2010, 08:44 PM

Nismo Spring Rates (Rates taken from Nissan Japan, based on part # E3110-1EA00, except for lb/in which was converted from N/mm * 5.7099):
F:79.0 N/mm (8.1 kgf/mm) (451 lbs/in)
R:89.0 N/mm (9.1 kgf/mm) (508 lbs/in)

Normal Spring Rates (Reverse calculated, Nismo was advertised to have 15% more in Front, 10% more in Rear. May not be exactly accurate but close enough)
F: 68.7 N/mm (7.1 kgf/mm) (392 lbs/in)
R: 77.3 N/mm (7.9 kgf/mm) (441 lbs/in)

Plz + rep if this helped you!!

-------------
Edit: Found this via Google for OE rates

FRONT:
OE rate: Linear 74 N/mm (422 lbs/in)

REAR:
OE rate: Linear 79 N/mm (450 lbs/in)

tbonesteak · 06-16-2010, 03:23 AM

oh wow good stuff man. So the RSR that tjlazer's gonna tackle is quite a bit stiffer.....hm....wonder how daily friendly the RSRs are gonna be at that stiffness especially it being linear.

Supergoji · 06-16-2010, 09:58 AM

wow that makes my stock suspension rates look SOFT.

kenchan · 06-16-2010, 04:45 PM

for street i think they look about right. wat the base can improve on is higher damp rate, imo.

tbonesteak · 06-17-2010, 01:44 AM

Quote:

Originally Posted by Supergoji

wow that makes my stock suspension rates look SOFT.

what is your stock suspension rate?

Supergoji · 07-04-2010, 10:15 PM

156 Front lbs/in 2.8kg/mm
134 rear lbs/in 2.4kg/mm

right now i have eibach springs and kyb adjustables
.8 inch drop all around, they are progressive

Front 185-250lbs/in (3.3-4.5kg/mm)
Rear 145-200lbs/in (2.6-3.6kg/mm)

4 way adjustable valving Front
8 way adjustable valving Rear

i want to upgrade to powertrix ultralight coilovers: Front 8kg/mm (447lbs/in), Rear 6Kg/mm (335lbs/in)

normally when you want to dial out understeer you want to make the springs harder in the rear, but dude to the less weight int he rear idk how that would affect the handling.

kenchan · 07-06-2010, 01:01 PM

Quote:

Originally Posted by Supergoji

156 Front lbs/in 2.8kg/mm
134 rear lbs/in 2.4kg/mm

right now i have eibach springs and kyb adjustables
.8 inch drop all around, they are progressive

Front 185-250lbs/in (3.3-4.5kg/mm)
Rear 145-200lbs/in (2.6-3.6kg/mm)

thats softer than my HondaFit's setup.

tbonesteak · 07-07-2010, 11:35 AM

one of the many factors making the fit suchhhh a fun car to drive i guess. love that thing.

kenchan · 07-07-2010, 12:13 PM

Quote:

Originally Posted by tbonesteak

one of the many factors making the fit suchhhh a fun car to drive i guess. love that thing.

yah, i run enduratech coilovers on mine.

super smooth, super handling without trying... (downside...super slow

).

klubbheads · 09-02-2010, 12:52 PM

good stuff Da.Menace

NISMOFO · 09-13-2010, 01:42 PM

Yeah, I've been wondering the stock rates as well.

01-01-2010, 02:35 PM	#1 (permalink)
Supergoji Enthusiast Member Join Date: Dec 2008 Location: Westchester NY Age: 36 Posts: 311 Drives: Z32tt / Supra tt Rep Power: 257	what are the oem spring rates? i searched around and didn't find any numbers. what are the 370z spring rates and what are the 370z nismo rates?

06-10-2010, 02:42 PM	#2 (permalink)
klubbheads Base Member Join Date: Jan 2009 Location: North Hollywood, CA Posts: 221 Drives: Very slow Nismo 370 Rep Power: 16	anyone know the answer? __________________ g35driver OG.

06-10-2010, 03:17 PM	#3 (permalink)
tjlazer A True Z Fanatic Join Date: Dec 2009 Location: Tacoma Age: 53 Posts: 2,496 Drives: Z34, R35 Rep Power: 20	I was just going to post asking this question. I want to know what the OEM spring rates are in comparison to Eibach and H&R Springs..... __________________ 2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV

06-15-2010, 08:44 PM	#5 (permalink)
Da.Menace Track Member Join Date: Apr 2010 Location: Canada Posts: 698 Drives: people crazy Rep Power: 16	Nismo Spring Rates (Rates taken from Nissan Japan, based on part # E3110-1EA00, except for lb/in which was converted from N/mm * 5.7099): F:79.0 N/mm (8.1 kgf/mm) (451 lbs/in) R:89.0 N/mm (9.1 kgf/mm) (508 lbs/in) Normal Spring Rates (Reverse calculated, Nismo was advertised to have 15% more in Front, 10% more in Rear. May not be exactly accurate but close enough) F: 68.7 N/mm (7.1 kgf/mm) (392 lbs/in) R: 77.3 N/mm (7.9 kgf/mm) (441 lbs/in) Plz + rep if this helped you!! ------------- Edit: Found this via Google for OE rates FRONT: OE rate: Linear 74 N/mm (422 lbs/in) REAR: OE rate: Linear 79 N/mm (450 lbs/in) 370Zsteve, 2011 Nismo#91 and 2sl0w like this. __________________ Brembo :: H&R :: KW :: SPC :: Stillen Last edited by Da.Menace; 06-15-2010 at 08:58 PM.

07-04-2010, 10:15 PM	#10 (permalink)
Supergoji Enthusiast Member Join Date: Dec 2008 Location: Westchester NY Age: 36 Posts: 311 Drives: Z32tt / Supra tt Rep Power: 257	156 Front lbs/in 2.8kg/mm 134 rear lbs/in 2.4kg/mm right now i have eibach springs and kyb adjustables .8 inch drop all around, they are progressive Front 185-250lbs/in (3.3-4.5kg/mm) Rear 145-200lbs/in (2.6-3.6kg/mm) 4 way adjustable valving Front 8 way adjustable valving Rear i want to upgrade to powertrix ultralight coilovers: Front 8kg/mm (447lbs/in), Rear 6Kg/mm (335lbs/in) normally when you want to dial out understeer you want to make the springs harder in the rear, but dude to the less weight int he rear idk how that would affect the handling. Last edited by Supergoji; 07-04-2010 at 10:19 PM.

06-15-2010, 01:52 AM	#4 (permalink)
Supergoji Enthusiast Member Join Date: Dec 2008 Location: Westchester NY Age: 36 Posts: 311 Drives: Z32tt / Supra tt Rep Power: 257	Bump

06-16-2010, 03:23 AM	#6 (permalink)
tbonesteak Track Member Join Date: Mar 2009 Location: Socal Posts: 914 Drives: MY09 MB 6MT Rep Power: 375	oh wow good stuff man. So the RSR that tjlazer's gonna tackle is quite a bit stiffer.....hm....wonder how daily friendly the RSRs are gonna be at that stiffness especially it being linear.

06-16-2010, 09:58 AM	#7 (permalink)
Supergoji Enthusiast Member Join Date: Dec 2008 Location: Westchester NY Age: 36 Posts: 311 Drives: Z32tt / Supra tt Rep Power: 257	wow that makes my stock suspension rates look SOFT.

06-16-2010, 04:45 PM	#8 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	for street i think they look about right. wat the base can improve on is higher damp rate, imo.

07-07-2010, 11:35 AM	#12 (permalink)
tbonesteak Track Member Join Date: Mar 2009 Location: Socal Posts: 914 Drives: MY09 MB 6MT Rep Power: 375	one of the many factors making the fit suchhhh a fun car to drive i guess. love that thing.

09-02-2010, 12:52 PM	#14 (permalink)
klubbheads Base Member Join Date: Jan 2009 Location: North Hollywood, CA Posts: 221 Drives: Very slow Nismo 370 Rep Power: 16	good stuff Da.Menace __________________ g35driver OG.

09-13-2010, 01:42 PM	#15 (permalink)
NISMOFO Enthusiast Member Join Date: Jan 2009 Location: McKinney, TX Posts: 269 Drives: 370Z Rep Power: 16	Yeah, I've been wondering the stock rates as well.

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