KG/MM springs - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

gregshin · 01-10-2002, 10:21 AM

I'm pretty close to ordering them....just wondering if any other springs are good...I'm just a daily driver.

808rps13 · 01-10-2002, 10:57 AM

which springs are you thinking of getting?  the S21, DR21, or DR21 Supersports?  if you're just using them as a daily driver then you might find the DR21 Supersports too stiff.  IMO too stiff for a daily driver (IIRC 4.4kg/front, 3.8kg/rear), then you gonna need to find some well dampened struts/shocks to match up w/ them.

Drifting Ricer · 01-10-2002, 11:06 AM

I will put the s21 tomorrow! The rate is F4.6 R4.0.

gregshin · 01-10-2002, 11:24 AM

ahh fook! there are 3 lines? i think i am getting the S21 i think...not to sure tho.

drift freaq · 01-10-2002, 11:48 AM

either get the KG/MM dampers to go with them or the Tokico HTS's both of which are short stroke dampers designed for uprated springs that lower and stiffen your suspension. KYB AGX's are really good but they are stock travel height. which can induce bump steer if use with lowering springs

**West** · 01-10-2002, 12:00 PM

To figure out what a KG/MM Rating is in LBS/IN just times the KG by 56.

So...

4.4kg/mm = 246 lbs/in
3.8kg/mm = 212 lbs/in

Now IMHO, that is WAAAY to soft. My old 5Zigen Springs were 290/280 and they were just right, but to each his own. I like stiff.

I will be ordering my Zeal B-6's in a custom Spring rate of 6.5 kg/mm Front and 5.5 kg/mm Rear. Which would be 364/308 lbs/in.

HippoSleek · 01-10-2002, 12:29 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from gregshin on 8:21 am on Jan. 10, 2002
I'm pretty close to ordering them....just wondering if any other springs are good...I'm just a daily driver.
</td></tr></table><span id='postcolor'>

Why not Eibach Pro-Kits?  I think they have been universally praised, don't require special dampers, and firm the ride w/o harshness.  

vancouvers14 · 01-10-2002, 12:36 PM

pro-kits are almost exactly the same spring rates as stock.

gregshin · 01-10-2002, 12:40 PM

so ya guys think i should get the Pro kits or KG/MM?A RGH!!! remember imma just a daily driver.

burgy240 · 01-10-2002, 02:01 PM

I got H&R springs for my s14 because I like the stiffness but not to harsh or to low for a daily drive in the north with the potholes and bumps in teh roads.  I love my H&R's.  I got them from the "House of imports" guy on ebay.  I think he is selling a set right now for like $190 or so.  

tnord · 01-10-2002, 02:07 PM

i can't tell you the spring rates for stock springs and prokits, but i do know that my handling is drastically improved after the install, which is all that really matters

BlankFlip · 01-10-2002, 02:28 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from gregshin on 2:40 pm on Jan. 10, 2002
so ya guys think i should get the Pro kits or KG/MM?A RGH!!! remember imma just a daily driver.
</td></tr></table><span id='postcolor'>
i've got intrax spring w/ a 2.0 inch drop cuz mine is a daily driver 2. they ride really really good for the drop, but i want something REALLY STIFF.

01-10-2002, 10:21 AM	#1
gregshin Zilvia Junkie Join Date: Aug 2001 Posts: 338 Trader Rating: (0) Feedback Score: 0 reviews	I'm pretty close to ordering them....just wondering if any other springs are good...I'm just a daily driver.

01-10-2002, 10:57 AM	#2
808rps13 Leaky Injector Join Date: Nov 2001 Posts: 88 Trader Rating: (0) Feedback Score: 0 reviews	which springs are you thinking of getting?  the S21, DR21, or DR21 Supersports?  if you're just using them as a daily driver then you might find the DR21 Supersports too stiff.  IMO too stiff for a daily driver (IIRC 4.4kg/front, 3.8kg/rear), then you gonna need to find some well dampened struts/shocks to match up w/ them.

01-10-2002, 11:06 AM	#3
Drifting Ricer Zilvia Addict Join Date: Nov 2001 Location: Boston MA Posts: 608 Trader Rating: (0) Feedback Score: 0 reviews	I will put the s21 tomorrow! The rate is F4.6 R4.0.

01-10-2002, 11:24 AM	#4
gregshin Zilvia Junkie Join Date: Aug 2001 Posts: 338 Trader Rating: (0) Feedback Score: 0 reviews	ahh fook! there are 3 lines? i think i am getting the S21 i think...not to sure tho.

01-10-2002, 11:48 AM	#5
drift freaq R.I.P. Aya, always love Join Date: Nov 2001 Location: Los Feliz/Hollywood Posts: 18,562 Trader Rating: (215) Rides Gallery: drift freaq Feedback Score: 215 reviews	either get the KG/MM dampers to go with them or the Tokico HTS's both of which are short stroke dampers designed for uprated springs that lower and stiffen your suspension. KYB AGX's are really good but they are stock travel height. which can induce bump steer if use with lowering springs

01-10-2002, 12:00 PM	#6
West OMNOMNOMNOM Join Date: Dec 2000 Location: Denver, CO Age: 43 Posts: 6,456 Trader Rating: (0) Rides Gallery: West Feedback Score: 0 reviews	To figure out what a KG/MM Rating is in LBS/IN just times the KG by 56. So... 4.4kg/mm = 246 lbs/in 3.8kg/mm = 212 lbs/in Now IMHO, that is WAAAY to soft. My old 5Zigen Springs were 290/280 and they were just right, but to each his own. I like stiff. I will be ordering my Zeal B-6's in a custom Spring rate of 6.5 kg/mm Front and 5.5 kg/mm Rear. Which would be 364/308 lbs/in.

01-10-2002, 12:29 PM	#7
HippoSleek Nissanaholic! Join Date: Aug 2001 Location: elsewhere Posts: 2,081 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from gregshin on 8:21 am on Jan. 10, 2002 I'm pretty close to ordering them....just wondering if any other springs are good...I'm just a daily driver. </td></tr></table><span id='postcolor'> Why not Eibach Pro-Kits?  I think they have been universally praised, don't require special dampers, and firm the ride w/o harshness.

01-10-2002, 12:36 PM	#8
vancouvers14 Zilvia Addict Join Date: Jul 2001 Posts: 868 Trader Rating: (0) Feedback Score: 0 reviews	pro-kits are almost exactly the same spring rates as stock.

01-10-2002, 12:40 PM	#9
gregshin Zilvia Junkie Join Date: Aug 2001 Posts: 338 Trader Rating: (0) Feedback Score: 0 reviews	so ya guys think i should get the Pro kits or KG/MM?A RGH!!! remember imma just a daily driver.

01-10-2002, 02:01 PM	#10
burgy240 Nissanaholic! Join Date: Oct 2001 Location: Tampa Age: 48 Posts: 2,151 Trader Rating: (2) Feedback Score: 2 reviews	I got H&R springs for my s14 because I like the stiffness but not to harsh or to low for a daily drive in the north with the potholes and bumps in teh roads.  I love my H&R's.  I got them from the "House of imports" guy on ebay.  I think he is selling a set right now for like $190 or so.

01-10-2002, 02:07 PM	#11
tnord Nissanaholic! Join Date: Dec 2001 Posts: 1,975 Trader Rating: (0) Feedback Score: 0 reviews	i can't tell you the spring rates for stock springs and prokits, but i do know that my handling is drastically improved after the install, which is all that really matters

01-10-2002, 02:28 PM	#12
BlankFlip Nissanaholic! Join Date: Oct 2001 Location: The Future Posts: 1,627 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from gregshin on 2:40 pm on Jan. 10, 2002 so ya guys think i should get the Pro kits or KG/MM?A RGH!!! remember imma just a daily driver. </td></tr></table><span id='postcolor'> i've got intrax spring w/ a 2.0 inch drop cuz mine is a daily driver 2. they ride really really good for the drop, but i want something REALLY STIFF.