What exactly is a spring rate kg? I've talked to a guy at Eibach and he does'nt know whta I mean.

What is the stock spring rate on the R and what is a good spring rate to use with Koni yellow adjustable dampers?

What springrates have ap, H&R and Eibachs for the DC2?

Thanks!

 

stock itr springs:

180-240 in the front,

240 in the rear.

i would go with something around 360-380

 

Why is front spring rate 180-240?

How do I know which springs have 260-380, cause there is no info on the spring manufactors hp.

 

i'll give you a hint

H&R's have a spring rate of 360 for the sport itr springs, (1.3 drop), and are 150 shipped right now!

but yes, you are right, spring rates are very hard to come by as the info is out there, but very hard to get to.

if you have a specific pair of springs you are looking at, ask about them. otherwise i would suggest either spoon or H&R's. (since H&R has a specific application for a ITR)

 

Spring rate = kg/mm. Amount of force (or weight) per mm compression.
Stock is about 4 kg/mm. KONIs are adjustable, so a range of spring rates can be used with a KONI. You just have to set it stiffer when the spring is stiffer.

In the US they use lbs/inch I think.
1 kg = 2.2 lbs
1 inch = 25.4 mm
1 kg/mm = 55.88 lbs/inch

Strange that Eibach doesn't know what a spring rate is!!!


[Modified by DutchITR1689, 11:13 AM 6/13/2002]

 

The front spring is 246, the rear is 140-246.

If you look at the stock springs the front ones are linear, where as the rear springs are progressive.

 

are you sure? i thought the front ones were progressive and the rears are linear
figure that would make more sense...

either way, i also thought the progressive ones were 180-240 doesnt really matter though, close enough

now someone help me answer https://honda-tech.com/zerothread?id=207394 ??



[Modified by 00-0187, 5:17 AM 6/13/2002]

 

So, stock is: Front 246/55.88 = 4.4 kg/mm
rear 2.5 - 4.4 kg/mm

H&R : 360/55.88 = 6.4 kg/mm


[Modified by DutchITR1689, 11:21 AM 6/13/2002]

 

I want a brand which is available in Europe, so only Eibach, H&R and ap comes into mind. Also I have only the choice of KW coilover (using Koni dampers), Koni adjustable dampers, Bilstein dampers, H&R coilovers, ap coilover.

A cheap and good combo is IMO Koni shocks and some brand of springs, but when knowing too much it is harder to choose the right parts

What would you do with above Euro-parts?

This is for Streetracing and Autocross!

 

IMO for streetracing and autocross, stock springs should be sufficient.
I think you only need stiffer springs for the track.....

 

so you think tock springs with Koni dampers or stock dampers?

 

I thought you already have aftermarket springs and shocks.

I have stock springs with KONIs. I set the KONIs very stiff (95%) for the track and at 75% for street.

 

No, I have stock dampers with ap springs (rated at 40mm lower)

 

Well then I would say keep the ap springs and put KONIs on them. And adjust the KONIs to match the ap springs!!

 

Go with the Koni or Bilstein coilovers and Eibach springs. Eibach will make you whatever spring rate you want, if I am not mistaken.

 

ttt

even don't know if Koni dampers and lowering springs is a perfect choice

 

Depends on how you want to affect your handling. Stiffer springs may not be as good over bumpy roads but more ideal for smooth/flat surfaces. When you make the rear stiffer you can induce oversteer more easily. If you make the front stiffer then you create more understeer.

Just looking at the stock spring rates tells you that it will understeer more at low speeds, and at higher speeds, when the stiffer coils in the rear come into play, then it will become more neutral. But of course, spring rates aren't everything, you have to take into consideration the sway bars, tire pressure etc.

You can't just slap on any springs and expect it to be better. You might want to look into some full coil overs.


[Modified by Eeepers, 12:35 AM 6/14/2002]

 

Hey, If you have a few min......enjoy https://honda-tech.com/zerothread?id=158822




[Modified by slowassR, 7:58 PM 6/13/2002]