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Ksport GT lowering springs

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Old 07-10-2011, 12:32 PM
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SouthrnComfortZ
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Default Ksport GT lowering springs

Ok, I found a new set of these springs for $99 shipped! So I couldn't pass that deal up for a 1.2" drop all around. But I looked in the lowering spring thread and didn't see anyone with these. Hope thats not bad lol. I just want to know if anyone else is lowered on these springs, if you had pictures and what do you think about them?


Thank you for any help
Justin
Old 07-10-2011, 12:54 PM
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JaE35z
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the eibach sportlines advertise the same drop
Old 07-10-2011, 02:38 PM
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davidv
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One of our sponsers will soon be here to tell you about your poor choice. And the sponsor will have a product that will better fit your needs. Price too low to mention of course.

Last edited by davidv; 07-10-2011 at 02:41 PM.
Old 07-10-2011, 05:47 PM
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SouthrnComfortZ
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I really dont think anyone could beat 99 bucks shipped. Yea I looked at the sportlines but I needed something now for IA and these fit my budget. If they aren't good I plan on switching out later on and going with koni yellow shock/ lower spring combo.
Old 07-10-2011, 08:38 PM
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SouthrnComfortZ
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Dang 223 views and 2 people had something to say. That can't be good lol. Well I guess I'll test them and write a review about them. They make great coilovers so I would think there springs should be good too. I can't find any spring rates on them either so maybe I'll get that tested too.
Old 07-13-2011, 09:51 AM
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Gsedan35
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"They make great coilovers"

With the above comment, I wouldn't be surprised if you bought them without knowing the spring rates. That would be a mistake.

Spring rate matters, you have several 1" - 1.2" drop choices on the market, a few of them I can eliminate based on spring rate alone.

Oem spring rate 2003-2004
314/342

Oem spring rate 2004.5+
314/427


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

Progress Technology progressive springs 1.0”/1.0”
Spring rates in LBS 425/385 (final rates only, softer initial front progressive rate unknown)

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)

Tanabe NF210 Series 350Z progressive springs 1.2”/1.2” higher
Spring rates in LBS 314/353

Skunk2 350Z progressive springs 1.3”/1”
Spring rate in LBS 238/381 237/395

Swift 350Z Spec-R progressive springs 1.2”/1”
Spring rates in LBS initial/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 DRacing progressive springs 1.2”/1.2”
Spring rates in LBS initial/final front 252/454 initial/final rear 252/482 rear

Whiteline 350Z linear springs (control)
Spring rate 365 LBS Drop: .8"-1"
Spring rate 445LBS Drop: 1"-1.2"
(sold as 2 front springs and 2 rear springs don‘t ask me why)

H&R sport progressive springs 350Z 1.3”/1” drop
Spring rates in LBS 370/400 (peak rates only, softer initial rates are unknown)

Tokico D-spec shock & spring package
350Z - DSK512 - 375f/375r - Linear Springs 1"/1.5" (springs only are available for sale without the shocks)

Last edited by Gsedan35; 07-13-2011 at 10:04 AM.
Old 07-13-2011, 10:14 AM
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The Ksport springs aren't a bad choice if you just want to drop the car. My roommate actually has them on his E46 and the ride is pretty good on OEM shocks. The car does handle a bit better as well.

Ksport GT lowering spring rates for the Z are around 5.5kg/mm in the front and 6.25kg/mm in the rear. Can't remember exact numbers right now, but I know that they're very close to what I listed.
Old 07-14-2011, 12:52 PM
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SouthrnComfortZ
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VividRacing- Thank you very much, they should be here Friday or Saturday.

Gsedan35- Yea I'm not planning on tracking the Z so any spring rate more aggressive then stock and gives me the drop I want then the springs will be perfect. No I didn't know the rates thats why I asked.
Old 07-24-2011, 08:40 PM
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shipping took forever but I finally got the springs in the mail on Thursday and put them on my car Friday.
Ride- The ride is very smooth yet a little stiffer than stock for sure.
Stance- The rear came down pretty nice already because I did the fronts last so jacking the car up from the front put all the weight on the rear for an hour. The front is still settling.

I will post pictures in a few days when it settles a little more. Is the darker silver on 03 not called silverstone? I was looking for touch up paint at auto zone and they had what I'm almost positive was my car color but called something else.
Old 07-24-2011, 11:56 PM
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SE5spd
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If you don't plan on tracking the car then why do you plan on getting Koni shocks / spring combo later?

Btw I had these exact springs on my maxima and THEY SUCKED!
Old 07-25-2011, 08:29 AM
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Vivid Racing
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I'm glad you're happy with your purchase! $99 shipped is a good price, but PM me next time. I'm sure we could have matched that.

Did you cut your bump stops?
Old 07-25-2011, 08:41 AM
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Gsedan35
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Originally Posted by SouthrnComfortZ
VividRacing- Thank you very much, they should be here Friday or Saturday.

Gsedan35- Yea I'm not planning on tracking the Z so any spring rate more aggressive then stock and gives me the drop I want then the springs will be perfect. No I didn't know the rates thats why I asked.
But if vivid is correct with the springs he's mentioning, the springs are softer then oem. The Z does not have boat loads of shock stroke, dropping on less then oem spring stiffness is not a good idea. Not saying you'd want them sky high either.

Based on the numbers vivid gave.
308/350

For your sake, I hope those numbers are wrong.

But if your like all reviews posted on this site, I'm sure you'll say they're perfect and great. Until a few months from now you pull them and resell to get something that actually works. Sorry couldn't resist
Old 07-25-2011, 10:08 AM
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Originally Posted by SE5spd
If you don't plan on tracking the car then why do you plan on getting Koni shocks / spring combo later?

Btw I had these exact springs on my maxima and THEY SUCKED!
Because I had koni yellows on my prelude and loved them. The stock shocks wont last long so I'll get the koni's. And if I don't end up liking the ksport springs I'll switch to sportlines.
Old 07-25-2011, 11:39 AM
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JaE35z
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post those pics
Old 01-30-2012, 09:20 AM
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dmorrow
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VividRacing,

PM Me. I'm looking for about a 1" drop all around, not really wanting any more but if you have something slightly more thats better priced/ better suited for a 03 350z let me know.
I'm wanting to stay close to 100 as well. No more than 150.
Get me a deal together and we`ll talk
Old 01-30-2012, 10:19 AM
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Originally Posted by dmorrow
VividRacing,

PM Me. I'm looking for about a 1" drop all around, not really wanting any more but if you have something slightly more thats better priced/ better suited for a 03 350z let me know.
I'm wanting to stay close to 100 as well. No more than 150.
Get me a deal together and we`ll talk
I'll PM you shortly! Thanks!
Old 02-23-2012, 02:56 PM
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taywan
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vivid...
lmk what good springs you have also. id prob go 1.25" lower.
zip is 29680
thx.
Old 02-23-2012, 05:16 PM
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Originally Posted by Vivid Racing
The Ksport springs aren't a bad choice if you just want to drop the car. My roommate actually has them on his E46 and the ride is pretty good on OEM shocks. The car does handle a bit better as well.

Ksport GT lowering spring rates for the Z are around 5.5kg/mm in the front and 6.25kg/mm in the rear. Can't remember exact numbers right now, but I know that they're very close to what I listed.
Care to define how you quantify "car does handle a bit better.."?
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