Aftermarket Spring Rates

Shocks, springs, sway bars, coliovers, bushings, brakes, wheels, tires - This is the place to discuss G-Series suspension modifications!
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Joined: Tue Oct 05, 2004 10:26 am
Car: 06 G35 Coupe 6MT
95 Maxima SE 5MT
Location: Springfield, MO

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I'll be looking into lowering springs for my G35 before too long, I don't need any kind of major drop, just a bit lower than stock, but I want to keep the spring rates as close to stock as possible. So far I haven't been able to find much info on the rates for most of the popular aftermarket springs, or even the stock ones for that matter. The car is an 06 G35 6MT with the sport package. Can anyone point me in the right direction?


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RED_DET
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Car: 2004 6 speed G35 Sedan, 2011 G37x, 1992 Nissan Sentra SE-R SR20DET, C7Z06
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Notes: STech Springs
Manufacturer: TEIN
Ride Height (R): -0.9in (-23mm)
Spring Rate (F): 358lbs/in (6.4kgf/mm)
Ride Height (F): -1.2in (-30mm)
Spring Rate (R): 274lbs/in (4.9kgf/mm)

Notes: HTech Springs
Manufacturer: TEIN
Ride Height (F): -1.4in (-34.5mm)
Spring Rate (R): 263lbs/in (4.7kgf/mm)
Spring Rate (F): 324lbs/in (5.8kgf/mm)
Ride Height (R): -0.7in (-17mm)

Notes: Pro Kit Springs
Manufacturer: Eibach
Front Lowering: 1.1in
Rear Lowering: 1.0in
Spring rates in LBS initial/final front 229/337 initial/final rear 274/463

Oem linear springs
G35 coupes 2005/2006 with oem 19’s only
350Z 2004.5 to 2008 (revised suspension)
Front:314 Rear:427

Whenever you are ready to pull the trigger, let me know and I will take care of you.

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Posts: 1345
Joined: Tue Oct 05, 2004 10:26 am
Car: 06 G35 Coupe 6MT
95 Maxima SE 5MT
Location: Springfield, MO

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Good stuff, thanks! Looks like the Eibachs are the closest to what I'm looking for. Might be interested to see how the Pro Kit's compare to the Sportline's as far as the rates go, seems kind of backwards that the Sportline springs are the more aggressive of the two. Would you happen to have any info on those as well?

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RED_DET
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Posts: 6613
Joined: Tue May 13, 2003 5:07 pm
Car: 2004 6 speed G35 Sedan, 2011 G37x, 1992 Nissan Sentra SE-R SR20DET, C7Z06
Location: Louisville, KY
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Notes: Sportline Springs
Manufacturer: Eibach
Front Lowering: 1.6in
Rear Lowering: 1.4in
F: 239/400 R: 257/435

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Posts: 1345
Joined: Tue Oct 05, 2004 10:26 am
Car: 06 G35 Coupe 6MT
95 Maxima SE 5MT
Location: Springfield, MO

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Awesome thanks!


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