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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?

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Old 01-01-2010, 01:35 PM   #1 (permalink)
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Default 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?
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Old 06-10-2010, 01:42 PM   #2 (permalink)
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anyone know the answer?
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Old 06-10-2010, 02:17 PM   #3 (permalink)
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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.....
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Old 06-15-2010, 12:52 AM   #4 (permalink)
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Old 06-15-2010, 07:44 PM   #5 (permalink)
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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.
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Old 06-16-2010, 02:23 AM   #6 (permalink)
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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.
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Old 06-16-2010, 08:58 AM   #7 (permalink)
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wow that makes my stock suspension rates look SOFT.
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Old 06-16-2010, 03:45 PM   #8 (permalink)
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for street i think they look about right. wat the base can improve on is higher damp rate, imo.
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Old 06-17-2010, 12:44 AM   #9 (permalink)
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Originally Posted by Supergoji View Post
wow that makes my stock suspension rates look SOFT.
what is your stock suspension rate?
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Old 07-04-2010, 09:15 PM   #10 (permalink)
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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 09:19 PM.
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Old 07-06-2010, 12:01 PM   #11 (permalink)
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Quote:
Originally Posted by Supergoji View Post
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.
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Old 07-07-2010, 10:35 AM   #12 (permalink)
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one of the many factors making the fit suchhhh a fun car to drive i guess. love that thing.
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Old 07-07-2010, 11:13 AM   #13 (permalink)
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Quote:
Originally Posted by tbonesteak View Post
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 ).
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Old 09-02-2010, 11:52 AM   #14 (permalink)
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good stuff Da.Menace
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Old 09-13-2010, 12:42 PM   #15 (permalink)
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Yeah, I've been wondering the stock rates as well.
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