06+ Civic Si 2/4dr Spring Rates and Drop Guide

[ReddemonSI]

Originally Posted by Jardiniboy

I'd go with the eibach prokit. If an inch is not low enough then my second vote would be the Tein S-tech.

thanks

[zumnsi]

does anyone have any pics of the cars after installing the new springs, I want to buy new springs but i cant figure out which is the best choice, it seems like spring rates are pretty close, so i have the feeling that it may come down to the look of the car after install. if anyone has the eibach prokit on the coupe its the way im leaning, could you post a pick or two,
thanks..

[TdotSi]

Calling Honda parts right now.........on hold...........the spring rates areeeeeee................(he's looking........have some patience).......oh wait, he may not be able to tell me..............still looking........(the system is slow, give me one second).......okkkkk...........still holding...............damn, he doesnt have the info, the honda tech line may be able to help me, but he's gotta call me back.

[TdotSi]

He called back, gave me the tech line, techline wont talk to me as I'm not from a dealership, was told to call customer relations, was told by them they will look into it.

[padded]

so, basically only two people understand why this thread is pointless?

[hym]

this what i was search for

but >>> what is better
Eibach pro kit or Eibach sportlines

i'v ex sedan

and thanx alot

[honda93]

Originally Posted by 02SilverSiHB

so the mugen has a lower spring rate than stock FG2/FA5 springs???

I'm not going through all these posts, but it is typical Japanese fashion (regarding car setup > street cars or race cars) to run softer shock and spring rates in the rear than the front... Much like a RWD car is set up actually.

People wanted a JDM setup in America, and so they got what they wished for... Be careful what you wish for.

Anthony "Mario" Crea
NNJR-SCCA

[honda93]

Originally Posted by aki

I made a file of the different shocks' spring rate and dampening, might as well share ones not already on here:

LX/EX Sedan: 140/145 lbs/in

LX/EX Coupe: 170/200 lbs/in

Don't forget, all non-Si Coupes are now running the non-Si Sedan rear springs for 2008; so the number for the rear spring on 2008+ cars drops from 200 lbs./in to 145-150 lbs./in

Anthony "Mario" Crea
NNJR-SCCA

[Holland]

looking at all the data...neuspeed race spring with a koni yellow shocks if they ever come out.....thats what you will find on my car at willows springs...hehhehe

[simons2k]

Originally Posted by rwc

according to honda.com

coupe: 2886 lbs, 61/39
sedan: 2945 lbs, 60/40

I need to be clear with these #s. Does this represent the weight of the cars and front/rear weight balance?

[LucasBlack]

yes....the curb weight, then the weight ratios.

[rhythmkid31]

wow great info. this definitely helps me.

[GreyK20]

how bout some price now

[pgFA]

Tanabe have the application for the DF210 springs for FG2/FA5

FG2: ////0.9 / 1.0//// - ////3.4 / 4.1////
FA5: ////1.3 / 1.1//// - ////3.4 / 4.1////

Est 10%-15% spring rate raise.

[BTRobertson]

I've got a question that I'm not sure is answered here or another thread. Will springs help a factory suspension perform better, or is it simply for lowering and appearance? I know a lower stance will help handling a bit, but will a spring kit purchased alone help handling or is mostly for aesthetics? Thanks!

[Jardiniboy]

Originally Posted by BTRobertson

I've got a question that I'm not sure is answered here or another thread. Will springs help a factory suspension perform better, or is it simply for lowering and appearance? I know a lower stance will help handling a bit, but will a spring kit purchased alone help handling or is mostly for aesthetics? Thanks!

Most of the aftermarket springs are mostly for a drop. Hardly for performance. Two springs I would get for performance is the progress and eibach pro-kit, but I would recommend getting aftermarket shocks to pair it up. But if you want something good that will not burn a whole in your wallet, get the HFP suspension. They're designed for performance with a little drop.

[wiganda]

can anyone explain what progressive and linear mean?

[BTRobertson]

Originally Posted by Jardiniboy

Most of the aftermarket springs are mostly for a drop. Hardly for performance. Two springs I would get for performance is the progress and eibach pro-kit, but I would recommend getting aftermarket shocks to pair it up. But if you want something good that will not burn a whole in your wallet, get the HFP suspension. They're designed for performance with a little drop.

Yeah, I'm looking for more of a drop than the HFP suspension offers though. I was thinking of getting the Tein Basic coil-overs, but the SS kit offers 16 dampening settings that you can control with their EDFC electronics. If I'm going to go for a full overhaul on the suspension, I'm going to do it right.

I was looking at the Skunk2 spring kit to lower the car by 1.5" F and 1.4" R - it's extremely cost-effective.

[LucasBlack]

Originally Posted by wiganda

can anyone explain what progressive and linear mean?

progressive rate springs means that the spring rate changes throughout the compression of the spring. this is typically done so that the springs tend to react more casually when drving less aggressively, yet will provide a higher, more responsive spring rate, when the car is pushed harder.

linear rate means that the springs have a single spring rate, no matter where in the compression range. this is typically better for more performance-minded suspension setups, because the shocks can be appropriately valved in accordance with the provided spring rate.

- with progressive rate springs, since the rate changes, it becomes more difficult to properly valve the shocks/dampers to compliment the spring rate.

[LucasBlack]

Originally Posted by BTRobertson

If I'm going to go for a full overhaul on the suspension, I'm going to do it right.

please read the stickies...