Bang for Buck: ek9 springs/shocks on Em1/Ek4

[DC5.Raven]

either my eyes are playing tricks, but seems it has made the ek9 sit higher lol

spoon looks the goods, but what are there spring rate? Has be stiffer than ek9 spring rate, or else thats not much of an upgrade on a ek9

Yea thats what I thought as well. LOL.

[Alvis]

yep, put it this way it ain't any lower than stock EK9 - but keeping things in perspective from an EK1/4 point of view, the drop would be much more noticeable...

Good question mugen_ctr - to tell you the truth I don't know the spring rates... more research lol!

[DC5.Raven]

According to this:
http://www.springrates.com/catalog/H...ive-Springs-EK

Spoon Progressive Springs provide a 0.8inch drop front and rear.
This is a similar height difference when looking at using EK9 Shocks/Springs vs. Stock EK1 on an EK1.

[Alvis]

spoon looks the goods, but what are there spring rate? Has be stiffer than ek9 spring rate, or else thats not much of an upgrade on a ek9

Ok guys, while maths is not my strong point I've been able to source some spring rates in lbs/in and convert them to kgs/cm so we can see how stock ek and EK9 spring rates compare to Spoon and a variety of other aftermarket springs on the market:

What we can conclude is the Spoon progressive springs are almost twice as hard as stock EKs (EX model), and while they are firmer in the front than CTRs, Spoons are a little softer in the rears.

For 96-00 Civics

Front (kgs/cm)~ Rear (kgs/cm)

96-00 EX 2.9~ 1.4
99-00 Si (EM1) 3.6~ 1.8
CTR 4.3~ 4.3
Spoon Progressive Lowering Springs 6.5~ 5.5

H&R OE 5.0~ 3.4
Eibach ProKit 5.2~ 3.4
H&R Sport 5.9~ 5.0
Eibach Sportline 5.5~ 4.9
Gold-line GL 5.7~ 3.4
Gold-line GPS 4.9~ 2.9
Koni RSK Suspension kit 2.75 - 3.66~ 4.8
Neuspeed SofSports 4.6~ 2.7
Neuspeed Sport 5.0~ 3.2
Neuspeed Race 8.7~ 7.1
Skunk Coilovers -old 7.1~ 5.4
Skunk2 Coilovers - new 8.9~ 7.1
Spoon Full Coilovers 5.4~ 4.3
Spoon Progress Coilovers 6.3~ 4.5
Spoon Progressive Lowering Springs 6.5~ 5.5
Ground Control Coilover 6.8~ 5.0
Tein RA/RE/RS 14.0~ 10.0
Tein HT 20.0~ 8.0
Tein HG 6.5~ 2.3 - 3.5
Tein SS 8.0~ 4.0
Tein Flex 9.0~ 5.0
Tein S. Tech 4.2~ 2.5
Tokico Illumina Kit 4.5~ 2.2
APEX'i WS 8.0~ 3.2
SSR Cup 7.0~ 5.0
SSR S1 8.0~ 8.0

http://www.ek9.org/forum/suspension/...rings-ek9.html


In pounds:

ek9 springs are stiffer, 240lbs front and rear. here is a list of some spring rates from popular springs for 96-00 civics:

For 96-00 Civics (EJ6-8 and EM1 chassis codes)
96-00 EX - 165F/80R (P/P)
99-00 Si (EM1) - 201F/99.8R (P/P)
97, 00-01 ITR - 250F/250R (L/P)
GS-R - 200F/95R (P/P)
CTR - 240/240 (L/P)

H&R OE - 280F/190R (P/P)
Eibach ProKit - 290F/190R (P/P
H&R Sport - 330F/280R (P/P)
Eibach Sportline - 310F/275R (P/P)
Gold-line GL 2.5" drop - 320/190 (P/P)
Gold-line GPS 1.25" drop - 275/160 (P/P)
Koni RSK Suspension kit - 154-205/270 (P/L)
Neuspeed SofSports - 260F/150R (P/P)
Neuspeed Sport - 280F/180R (P/P)
Neuspeed Race - 485F/395R
Skunk Coilovers -old - 400F/300R (L/L) for civic, 500F/400R for integra
Skunk2 Coilovers - new - 500F/400r (L/L)
Spoon Full Coilovers - 300/240
Spoon Progress Coilovers - 350F/250R (P/P)
Spoon Progress Lowering Springs - 320F/200R (P/P)
Ground Control Coilover - 380F/280R (P/P) (this is the standard kit and the springs are mildly progressive).
Tein RA/RE/RS - 783F/559R (L/L)
Tein HT - 1119F/448R (L/L)
Tein HG - 365F/129-196R (L/P)
Tein SS - 448F/224R
Tein Flex - 504F/280R
Tein S. Tech - 235F/140R
Tokico Illumina Kit - 250/123 (P/P)
APEX'i WS - 447f/178r
Suspension Techniques - needed
SSR Cup - 392/280
SSR S1 - 448/448
JIC FLT-A2s - USDM - 504F/336R (L/L)

[Alvis]

Good morning lads,

I've received a quote from the NZ performance website FortyOne Automotive (didn't get a reply from other one) and they've come back with a really good price on Spoon Sports Progressive Springs for EK Civic:

$341 + either one of the following shipping options (was quoted to Wollongong, NSW):

AU$129 - EMS Air 1-2 weeks
AU$119 - SAL Air 2-3 weeks
AU$70 - Japan Post Ocean 3-6 weeks

So you can get these springs to your door in about a month for a little over $400. Not bad at all

http://www.fortyone.co.nz/tabs.php


I think I'm going to go for it - would I need someone to install the springs for me or is it something you can do yourself/need special tools?

[DC5.Raven]

Ok guys, while maths is not my strong point I've been able to source some spring rates in lbs/in and convert them to kgs/cm so we can see how stock ek and EK9 spring rates compare to Spoon and a variety of other aftermarket springs on the market:

What we can conclude is the Spoon progressive springs are almost twice as hard as stock EKs (EX model), and while they are firmer in the front than CTRs, Spoons are a little softer in the rears.

For 96-00 Civics

Front (kgs/cm)~ Rear (kgs/cm)

96-00 EX 2.9~ 1.4
99-00 Si (EM1) 3.6~ 1.8
CTR 4.3~ 4.3
Spoon Progress Lowering Springs 5.7~ 3.6

H&R OE 5.0~ 3.4
Eibach ProKit 5.2~ 3.4
H&R Sport 5.9~ 5.0
Eibach Sportline 5.5~ 4.9
Gold-line GL 5.7~ 3.4
Gold-line GPS 4.9~ 2.9
Koni RSK Suspension kit 2.75 - 3.66~ 4.8
Neuspeed SofSports 4.6~ 2.7
Neuspeed Sport 5.0~ 3.2
Neuspeed Race 8.7~ 7.1
Skunk Coilovers -old 7.1~ 5.4
Skunk2 Coilovers - new 8.9~ 7.1
Spoon Full Coilovers 5.4~ 4.3
Spoon Progress Coilovers 6.3~ 4.5
Spoon Progress Lowering Springs 5.7~ 3.6
Ground Control Coilover 6.8~ 5.0
Tein RA/RE/RS 14.0~ 10.0
Tein HT 20.0~ 8.0
Tein HG 6.5~ 2.3 - 3.5
Tein SS 8.0~ 4.0
Tein Flex 9.0~ 5.0
Tein S. Tech 4.2~ 2.5
Tokico Illumina Kit 4.5~ 2.2
APEX'i WS 8.0~ 3.2
SSR Cup 7.0~ 5.0
SSR S1 8.0~ 8.0

http://www.ek9.org/forum/suspension/...rings-ek9.html

Very nice info there!

[mugen_ctr]

wow...Very nice figures... i always thought ctr had stiffer springs than 4.3, but any stiffer will compromise ride comfort i guess

[Alvis]

Does Spoon 6.5 front compared to CTR 4.3 front equate to much difference in terms of ride comfort?

[BlitZ]

not massive, but the CTR will be more comfortable.
But if im paying money, i would get the Spoon..

actually.. fark them all get the eibach sportlines

[Alvis]

yeh, it's pretty hard to find EK9 suspension in Oz - think there is one going for $450 and would most likely need to be re gassed (if it can) and springs probably at the end of their life anyway + you don't know what you're buying, past life etc etc so might end up spending more which is a bit pointless... so agree better to get brand new

[Alvis]

A really really good article/tips on buying suspension presented in a light and easy way to understand. Highly recommended.

http://www.superhonda.com/forum/f27/...allows-212488/

[Mikecivic78]

I think I'm going to go for it - would I need someone to install the springs for me or is it something you can do yourself/need special tools?

You can do it yourself with a mate. Tricky (and dangerous part) is separating springs and shocks. There are heaps of DIYs out there. All 1996-00 Civics are the same.

Thanks for all the replies guys. Keep the info coming.