Nissan 370Z Forum - View Single Post - I think I am regretting my spring selection

GSS138 · 12-10-2013, 05:05 PM

Personally, yes. WO aero 14k is kinda stiff. The OEM setup has a wheel rate of about 167 in the front and 146 in the rear.That calculates out to a a ride frequency of about 1 with a 15% difference front/rear.

14K frontis 300+ wheel rate and a >=2.0 Hz ride frequency which is definitely above or at the upper limits of where a non aero sedan type car should be.

as a general guideline:
 0.5 - 1.5 Hz for passenger cars
 1.5 - 2.0 Hz for sedan racecars and moderate downforce formula cars
 3.0 - 5.0+ Hz for high downforce racecars

So unless you have a pretty significant splitter, you might want to tone it down.(Or buy a splitter!)

Check this link out
http://www.optimumg.com/docs/Springs...Tech_Tip_1.pdf

12-10-2013, 05:05 PM	#2 (permalink)
GSS138 Track Member Join Date: Mar 2013 Location: Mission Viejo, CA Posts: 769 Drives: '12 370Z 6M Sport Rep Power: 13	Personally, yes. WO aero 14k is kinda stiff. The OEM setup has a wheel rate of about 167 in the front and 146 in the rear.That calculates out to a a ride frequency of about 1 with a 15% difference front/rear. 14K frontis 300+ wheel rate and a >=2.0 Hz ride frequency which is definitely above or at the upper limits of where a non aero sedan type car should be. as a general guideline:  0.5 - 1.5 Hz for passenger cars  1.5 - 2.0 Hz for sedan racecars and moderate downforce formula cars  3.0 - 5.0+ Hz for high downforce racecars So unless you have a pretty significant splitter, you might want to tone it down.(Or buy a splitter!) Check this link out http://www.optimumg.com/docs/Springs...Tech_Tip_1.pdf __________________ Current Mods: Vorpal Weapon +5.