Eibach Pro Kit too Low/Stiff - Other Options?
#1
Eibach Pro Kit too Low/Stiff - Other Options?
I have a G35 coupe with Eibach Pro kit springs and Tokico blues. Also Kinetix front camber arms and Eibach rear camber kit.
I have had this setup for less than 2,000 miles and I really don't like it. I live in Michigan and the roads suck. Its too rough and it feels under-damped. When I hit big dips or humps in the road I feel like my head is going to hit the ceiling. the rear especially feels under damped.
The car is also a little lower than I would like. Driveways can be quite a challenge sometimes. I would like it to be about 1/2" higher. Don't get me wrong - it looks great with the stance, but at the end of the day if you don't like driving it whats the point?
So what are some other springs that I might like better? Tein H tech?
I have had this setup for less than 2,000 miles and I really don't like it. I live in Michigan and the roads suck. Its too rough and it feels under-damped. When I hit big dips or humps in the road I feel like my head is going to hit the ceiling. the rear especially feels under damped.
The car is also a little lower than I would like. Driveways can be quite a challenge sometimes. I would like it to be about 1/2" higher. Don't get me wrong - it looks great with the stance, but at the end of the day if you don't like driving it whats the point?
So what are some other springs that I might like better? Tein H tech?
#5
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iTrader: (30)
Here's a list of aftermarket springs
Eibach 350Z Pro-Kit progressive springs 1”/1”
Spring rates in LBS initial/final front 296/384 initial/final rear 316/421
Eibach 350Z Sportline progressive springs 1.2"/1.2"
F: 239/400 R: 257/435
RSR 350Z linear springs .6”/.6”
Spring rates in LBS 345/417
Hotchkis 350Z Linear springs .6”/.8”
Spring rates in lbs 340/330
Tein S-tech 350Z springs .7“.6“ (fronts are slightly progressive, rears are linear)
Spring rates in LBS 386/402 (estimated front intial rate is 327lbs)
Tein H-tech 350z linear springs .3”/.2”
Spring rates in LBS 358/375
Progress Technology progressive springs 1.0”/1.0”
Spring rates in LBS 425/385 (final rates only, softer intial front progressive rate unknown)
Tokico D-spec shock & spring package
350Z - DSK512 - 375f/375r - Linear Springs 1"/1.5"
Tanabe GF210 Series 350Z progressive springs 1”/1.2”
Spring rates in LBS 336/375 (only peak rates are published, softer initial progressive rates unknown) IMO, I'd pick Eibach Pro-kit over this spring.
Tanabe NF210 Series 350Z progressive springs 1.2”/1.2” higher
Spring rates in LBS 314/353
Oem spring stiffness on a 1.2” drop, not a choice I would make
Skunk2 350Z progressive springs 1.3”/1”
Spring rate in LBS 238/381 237/395
Swift 350Z linear springs .8”/.6” drop on 350Z,
Spring rates in LBS 336/364
Swift 350Z Spec-R progressive springs 1.2”/1”
Spring rates in LBS intial/final Front: 291/392 Rear: 280/448
Vogtland 350z progressive springs 1”/1”
Spring rates in LBS initial/final front 257/354 initial/final rear 285/422
Kg/mm springs 350Z DR21 super sport 15mm drop
Spring rates in lbs initial/final front 246/398 initial/final rear 252/409
Kg/mm DRacing progressive springs 1.2”/1.2”
Spring rates in LBS initial/final front 252/454 initial/final rear 252/482 rear
Espelir 350Z progressive springs 10mm drop F&R
386/515 (softer initial progressive rates are unknown)
Most often purchased by owners chasing spring rate specs. But this spring is also often resold when they fail to deliver on the promise those specs were supposed to delivery. Not a bid surprise, they are progressive, not linear.
H&R sport progressive springs 350Z 1.3”/1” drop
Spring rates in LBS 370/400 (peak rates only, softer initial rates are unknown)
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Old 05-21-2011, 10:12 AM #4
Eibach 350Z Pro-Kit progressive springs 1”/1”
Spring rates in LBS initial/final front 296/384 initial/final rear 316/421
Eibach 350Z Sportline progressive springs 1.2"/1.2"
F: 239/400 R: 257/435
RSR 350Z linear springs .6”/.6”
Spring rates in LBS 345/417
Hotchkis 350Z Linear springs .6”/.8”
Spring rates in lbs 340/330
Tein S-tech 350Z springs .7“.6“ (fronts are slightly progressive, rears are linear)
Spring rates in LBS 386/402 (estimated front intial rate is 327lbs)
Tein H-tech 350z linear springs .3”/.2”
Spring rates in LBS 358/375
Progress Technology progressive springs 1.0”/1.0”
Spring rates in LBS 425/385 (final rates only, softer intial front progressive rate unknown)
Tokico D-spec shock & spring package
350Z - DSK512 - 375f/375r - Linear Springs 1"/1.5"
Tanabe GF210 Series 350Z progressive springs 1”/1.2”
Spring rates in LBS 336/375 (only peak rates are published, softer initial progressive rates unknown) IMO, I'd pick Eibach Pro-kit over this spring.
Tanabe NF210 Series 350Z progressive springs 1.2”/1.2” higher
Spring rates in LBS 314/353
Oem spring stiffness on a 1.2” drop, not a choice I would make
Skunk2 350Z progressive springs 1.3”/1”
Spring rate in LBS 238/381 237/395
Swift 350Z linear springs .8”/.6” drop on 350Z,
Spring rates in LBS 336/364
Swift 350Z Spec-R progressive springs 1.2”/1”
Spring rates in LBS intial/final Front: 291/392 Rear: 280/448
Vogtland 350z progressive springs 1”/1”
Spring rates in LBS initial/final front 257/354 initial/final rear 285/422
Kg/mm springs 350Z DR21 super sport 15mm drop
Spring rates in lbs initial/final front 246/398 initial/final rear 252/409
Kg/mm DRacing progressive springs 1.2”/1.2”
Spring rates in LBS initial/final front 252/454 initial/final rear 252/482 rear
Espelir 350Z progressive springs 10mm drop F&R
386/515 (softer initial progressive rates are unknown)
Most often purchased by owners chasing spring rate specs. But this spring is also often resold when they fail to deliver on the promise those specs were supposed to delivery. Not a bid surprise, they are progressive, not linear.
H&R sport progressive springs 350Z 1.3”/1” drop
Spring rates in LBS 370/400 (peak rates only, softer initial rates are unknown)
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Old 05-21-2011, 10:12 AM #4
#6
Registered User
iTrader: (1)
I have a G35 coupe with Eibach Pro kit springs and Tokico blues. Also Kinetix front camber arms and Eibach rear camber kit.
I have had this setup for less than 2,000 miles and I really don't like it. I live in Michigan and the roads suck. Its too rough and it feels under-damped. When I hit big dips or humps in the road I feel like my head is going to hit the ceiling. the rear especially feels under damped.
The car is also a little lower than I would like. Driveways can be quite a challenge sometimes. I would like it to be about 1/2" higher. Don't get me wrong - it looks great with the stance, but at the end of the day if you don't like driving it whats the point?
So what are some other springs that I might like better? Tein H tech?
I have had this setup for less than 2,000 miles and I really don't like it. I live in Michigan and the roads suck. Its too rough and it feels under-damped. When I hit big dips or humps in the road I feel like my head is going to hit the ceiling. the rear especially feels under damped.
The car is also a little lower than I would like. Driveways can be quite a challenge sometimes. I would like it to be about 1/2" higher. Don't get me wrong - it looks great with the stance, but at the end of the day if you don't like driving it whats the point?
So what are some other springs that I might like better? Tein H tech?
Personally, I just picked up a set of Nismo S Tune shocks and springs..they only drop you around 1/2-3/4" and is an awsome set up. Yes...expensive, but I got em slightly used at half price.
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#11
New Member
iTrader: (10)
I have a G35 coupe with Eibach Pro kit springs and Tokico blues. Also Kinetix front camber arms and Eibach rear camber kit.
I have had this setup for less than 2,000 miles and I really don't like it. I live in Michigan and the roads suck. Its too rough and it feels under-damped. When I hit big dips or humps in the road I feel like my head is going to hit the ceiling. the rear especially feels under damped.
The car is also a little lower than I would like. Driveways can be quite a challenge sometimes. I would like it to be about 1/2" higher. Don't get me wrong - it looks great with the stance, but at the end of the day if you don't like driving it whats the point?
So what are some other springs that I might like better? Tein H tech?
I have had this setup for less than 2,000 miles and I really don't like it. I live in Michigan and the roads suck. Its too rough and it feels under-damped. When I hit big dips or humps in the road I feel like my head is going to hit the ceiling. the rear especially feels under damped.
The car is also a little lower than I would like. Driveways can be quite a challenge sometimes. I would like it to be about 1/2" higher. Don't get me wrong - it looks great with the stance, but at the end of the day if you don't like driving it whats the point?
So what are some other springs that I might like better? Tein H tech?
Eibach G35 Coupe progressive springs 1.1”/1” drop on G35 coupe
Spring rates in LBS initial/final front 229/337 initial/final rear 274/463
Eibach 350Z progressive springs 1”/1” drop* on 350Z G35 drops will be higher
Spring rates in LBS initial/final front 296/384 initial/final rear 316/421
Based on what you want I would pull the Eibach springs and go with the Tein 350Z H-tech's. Because you have a G coupe you'll get a .8"/.7" drop
Tein H-tech 350z linear springs .3”/.2” drop on 350Z
Same spring when installed on G35 coupe .8"/.7" drop
Spring rates in LBS 358/375
Curious, what settings are you running your D-specs on right now? And what are your thoughts about what happened when you tried turning them up or down?
#12
New Member
iTrader: (10)
Tein G35 H-tech and S-tech are way softer then oem. They are progressive in the front, but not in the rear. (350Z Tein H-tech springs are linear front and rear btw)
Cut and dry this is the bottom line fact reguarding G35 coupe oem spring rates
2003-2007 G35 coupe delivered on oem 17 or 18 inch wheels
314/342 ("sport tuned")
2005-2007 G35 coupe delivered on oem 19 inch wheels (sport suspension)
314/427
http://g35driver.com/forums/brakes-s...w-updates.html
#13
Thanks for all of the input guys. The 350Z H-techs seem like a good one to try next.
Other opinions are welcome!
#15
Registered User
iTrader: (7)
Does a spring rate translate into the stiffness of the ride?
IE: (per above) Hotchkis spring rates are 340/330 and Tein s-techs are 386/402. Does that mean Hotchkis will give a softer ride? (given both springs are installed on oem shocks).
Edit: I did some research and saw that the oem rates are 314/427 for 2004.5 and up. Can anyone confirm this info?
IE: (per above) Hotchkis spring rates are 340/330 and Tein s-techs are 386/402. Does that mean Hotchkis will give a softer ride? (given both springs are installed on oem shocks).
Edit: I did some research and saw that the oem rates are 314/427 for 2004.5 and up. Can anyone confirm this info?
Last edited by JMS71585; 09-22-2011 at 11:15 AM.
#16
Registered User
iTrader: (1)
i just installed the pro kits on my 05 and i believe that the spring rates for the pro kit is actually lower then the OEM springs under normal load and under heavy load it's basically the same as OEM. I'm running stock shocks and realistically speaking if someone had secretly replaced my OEMs with the Pro kit in the middle of the night and i just got in the car the next morning and drove to work....i wouldn't be able to tell they were swapped out
and i'm actually thinking the car is maybe 1/2" too high still, the front has about a 1 finger gap and the rear has about a 1.5 finger gap.
and i'm actually thinking the car is maybe 1/2" too high still, the front has about a 1 finger gap and the rear has about a 1.5 finger gap.
#17
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Does a spring rate translate into the stiffness of the ride?
IE: (per above) Hotchkis spring rates are 340/330 and Tein s-techs are 386/402. Does that mean Hotchkis will give a softer ride? (given both springs are installed on oem shocks).
Edit: I did some research and saw that the oem rates are 314/427 for 2004.5 and up. Can anyone confirm this info?
IE: (per above) Hotchkis spring rates are 340/330 and Tein s-techs are 386/402. Does that mean Hotchkis will give a softer ride? (given both springs are installed on oem shocks).
Edit: I did some research and saw that the oem rates are 314/427 for 2004.5 and up. Can anyone confirm this info?
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