Suspension & Brakes Theory, alignment, spring rates....

[DC2R] GC + KONI Yellow, Spring Rates?

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Old Apr 7, 2008 | 05:58 PM
  #1  
choiboi's Avatar
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Default [DC2R] GC + KONI Yellow, Spring Rates?

Hi All,

I'm about to purchase a set of Ground Control coilover sleeves, Koni yellows and top hats for my AUDM 2000 Honda Integra Type R (DC2R).

I plan on driving the car on the street mainly with 1-2 trackdays a year. So I need something that rides near stock.

Doing abit of research I have found the stock dc2r rates to be:

Front: 246 lb/in | 4.4 kg/mm
Rear: 140 to 246 lb/in | 2.5 to 4.4 kg/mm (progressive)

I only want to drop the car 15mm on my GC setup as practicality is a major concern of mine (Australian roads are really sh*t!!).

I'm thinking of running:

Front: 300 lb/in | 5.5 kg/mm
Rear: 250 lb/in | 4.3 kg/kmm

Your thoughts on this? I don't want to compromise handling for comfort either.

Anyone with a DC2R and the same setup have any recommendations?

Thanks in advance,
David
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Old Apr 7, 2008 | 07:08 PM
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egsleepercivic's Avatar
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if it were my car I would go with at least 350 front and rear, i have 380f and 330 rear on hatch but its lighter than the type r. I am only lowered like 1.5in max, it's stiffer than stock but its comfortable on the street , also keep in mind the stock rates on my car are lower than yours

hope this helps...some
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Old Apr 8, 2008 | 02:47 AM
  #3  
choiboi's Avatar
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Default Re: (egsleepercivic)

Why do you run same rates front and rear? are there any advantages of it?
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Old Apr 8, 2008 | 09:10 AM
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Default Re: (choiboi)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by choiboi &raquo;</TD></TR><TR><TD CLASS="quote">Why do you run same rates front and rear? are there any advantages of it?</TD></TR></TABLE>
more over steer and a more neutral feeling

i run 350/250 on my ls. this is a very comfortable setup if you set the dampening to full soft. setting it to full stiff, the car will be somewhat stiff. i think GC recommends 380 in the front to compensate for the heavy front of our cars. the stiffer the rear is, the stiffer overall your car will be.
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Old Apr 8, 2008 | 11:32 AM
  #5  
egsleepercivic's Avatar
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stock type r I believe is 250f and 250r, keeping the rates the same front and rear would prevent you from upsetting the balance that the car has from the factory, I went with a lower rate in the rear so I could get a more comfortable ride on the street
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Old Apr 8, 2008 | 12:11 PM
  #6  
choiboi's Avatar
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Default Re: (egsleepercivic)

Thanks for the reply guys!

Torque-Correct GC recommends:
Rate: F-380 R-250 | F-6.8 kg/mm R-4.5 kg/mm
Drop: F&R- .75-3.5

egsleeper, you are right. However the rear is progressive. I'm aiming for neutral, inragards to handling.

I think I might go with GC's recommendations.
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Old Apr 8, 2008 | 03:10 PM
  #7  
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Default Re: (choiboi)

i have 450/350 rear. I actually enjoy riding in other peoples car. lol.
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Old Apr 9, 2008 | 12:30 PM
  #8  
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Default Re: (sirg-vtec)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sirg-vtec &raquo;</TD></TR><TR><TD CLASS="quote">i have 450/350 rear. I actually enjoy riding in other peoples car. lol. </TD></TR></TABLE>

those were the rates i was looking at getting what is wrong with them are they stiff and do you have alot of under steer or over steer i will be having a 22mm rear sway i dont know if you have that or not
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