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

PIC spring rate feedback!

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Old Oct 4, 2007 | 08:05 PM
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gsr x civic's Avatar
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Default PIC spring rate feedback!

hey guys. i've read nothing but good things about PIC. so i'm going for them.

one thing. i've been researching and it seems like PIC doesn't make custom spring rates. they already have specifically designed spring rates for your application.

i was looking at the 10k/8k spring rate selects. but god damn 560 / 448 is ******* stiff.

what i'm wondering is, will PIC make custom spring rates upon request? if not, which setup is not only good for dd, but road race events?

if i was able to customize my spring rates, i was thinking 460 / 380.

any advice that can point me in the right direction is greatly appreciated.
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Old Oct 4, 2007 | 08:23 PM
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vdub08's Avatar
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Default Re: PIC spring rate feedback! (gsr x civic)

yea i was thinking the exact same thing, i'm throwing down for the apex before xmas for my DD and 10k/8k does seem pretty stiff. so i dont know. feedback would be nice
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Old Oct 4, 2007 | 08:30 PM
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Default Re: PIC spring rate feedback! (vdub08)

you can't have comfort for dd, and good setup for track days.
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Old Oct 4, 2007 | 08:56 PM
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Default Re: PIC spring rate feedback! (slammed_93_hatch)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slammed_93_hatch &raquo;</TD></TR><TR><TD CLASS="quote">you can't have comfort for dd, and good setup for track days.</TD></TR></TABLE>

yeah. i know. i actually dont give a expletive about comfort. lol. what i meant to say, is it okay for the car / springs etc? going over like bumps and ****.

what about like lost shock travel and spring load and ****? what is all of that anyway?
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Old Oct 4, 2007 | 09:50 PM
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With a seperate preload and ride height adjustment you will not lose suspension travel unless you slam your ride. Then you risk the possibility of smacking your front upper control arms on the upper shock tower mounts.

PIC can give you custom rates upon request. I believe the lowest rate they offer is 6k with a matched damper. 10/8 is stiff but tolerable for a daily driver in my opinion. It certainly is not the most compliant and comfortable ride, but it is worth the trade off in handling performance. If I were to do it over I would go with something a little more mild from PIC, 8f/6r, but I do not regret my purchase and certainly enjoy the performance of this product. Currently I am running the 10/8 "Selects". Some comments about my setup can be found here.

https://honda-tech.com/zerothread?id=2085886
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Old Oct 4, 2007 | 09:57 PM
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yea..my friend just told me about PIC, he said they're pretty good...have anyone here tried it out yet?
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Old Oct 5, 2007 | 12:24 AM
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Default Re: (wootiewoot)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wootiewoot &raquo;</TD></TR><TR><TD CLASS="quote">yea..my friend just told me about PIC, he said they're pretty good...have anyone here tried it out yet?</TD></TR></TABLE>

you're obviously not reading any of the posts above are you?
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Old Oct 5, 2007 | 08:23 AM
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Default Re: (Stoich EG2)

lewl i was thinking the same thing.

but i didn't want to call him out like a bitch because i too need help in this topic.
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Old Oct 5, 2007 | 08:36 AM
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the 10k/8k setup is not soft, but it's nto as stiff as you think it would be. You can go with the 8k/6k (446/335) if you're worried about the 10/8 being too stiff.

if you'd like a test ride on an EG with the 10/8 setup, hit me up. I'm sure we can setup something. Or you can try factory5, they usually have a car there with PICs on it.
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Old Oct 5, 2007 | 09:19 AM
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Default Re: PIC spring rate feedback! (gsr x civic)

What you listed comes out to roughly 8kg/mm and 7kg/mm. How'd you come up those numbers in to begin with?

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Old Oct 5, 2007 | 11:25 AM
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Default Re: PIC spring rate feedback! (PIC Performance)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PIC Performance &raquo;</TD></TR><TR><TD CLASS="quote">What you listed comes out to roughly 8kg/mm and 7kg/mm. How'd you come up those numbers in to begin with?
</TD></TR></TABLE>

that was originally my plan to be around 8k/7k F/R. i thought 6k may be too soft and promote more oversteer.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Relic1 &raquo;</TD></TR><TR><TD CLASS="quote">the 10k/8k setup is not soft, but it's nto as stiff as you think it would be. You can go with the 8k/6k (446/335) if you're worried about the 10/8 being too stiff.
if you'd like a test ride on an EG with the 10/8 setup, hit me up. I'm sure we can setup something. Or you can try factory5, they usually have a car there with PICs on it. </TD></TR></TABLE>

you're on MWIR and you chipped my friend's ecu (luis' 4g63 elntra. lol)
what else do you have on your car suspension wise?
a test ride would be great if you could.
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Old Oct 5, 2007 | 12:45 PM
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Default Re: PIC spring rate feedback! (gsr x civic)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gsr x civic &raquo;</TD></TR><TR><TD CLASS="quote">

that was originally my plan to be around 8k/7k F/R. i thought 6k may be too soft and promote more oversteer.



you're on MWIR and you chipped my friend's ecu (luis' 4g63 elntra. lol)
what else do you have on your car suspension wise?
a test ride would be great if you could. </TD></TR></TABLE>
8/6 would balance out nice, but it depends on what else you have done to the car.

also... you have PM.
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Old Oct 5, 2007 | 01:18 PM
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Default Re: PIC spring rate feedback! (Relic1)

I have a set of 10k/8k Apex coilovers and they are most definatly bearable for daily driving... I love them but my brother thinks they're too stiff at times... my mom even thinks my car rides fine lol... and Guam_CiviC619 you have a crazy suspension set up one day I wanna do that to my car.
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Old Oct 5, 2007 | 01:28 PM
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Default Re: PIC spring rate feedback! (gsr x civic)

a softer rear end would be less likely to oversteer actually.
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Old Oct 5, 2007 | 05:04 PM
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a 10/8 combo is good for DD and occasional track drive( for sure it's too soft on track i think).
don't just look at spring rate consider it's stiff or soft, it's the shocks that made you feels comfort.
I ran showa coilover with 16/18 spring and it's feels like stock when doing fast bump
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Old Oct 5, 2007 | 05:27 PM
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Default Re: (frozenb)

PIC
what kind of shocks do you use?
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Old Oct 5, 2007 | 06:16 PM
  #17  
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Default Re: (gsr x civic)

What do you mean by "kind"?
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Old Oct 5, 2007 | 06:19 PM
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Default Re: (frozenb)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by frozenb &raquo;</TD></TR><TR><TD CLASS="quote">a 10/8 combo is good for DD and occasional track drive( for sure it's too soft on track i think).
don't just look at spring rate consider it's stiff or soft, it's the shocks that made you feels comfort.
I ran showa coilover with 16/18 spring and it's feels like stock when doing fast bump</TD></TR></TABLE>

I hardly ever recommend coilovers for a straight daily driver, none of our applications are designed for street cars. And plenty of people have tracked on our P2's (10k/8k). Others, with other suspension, track on much less. 10k/8k is hardly too soft for track use.

Spring rate is the one of the largest factors in determining a car's ride quality, that is not the job of the shocks. They affect ride quality, but only when severely over/under-damped.
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Old Oct 6, 2007 | 04:06 AM
  #19  
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Default Re: (PIC Performance)

im running the 10k/8k everyday on the street. they are pretty stiff. hitting sharp bumps/cracks in the road will hurt your back. but the car does handle really well.

but you do get used to them after a month or so and you learn to drive slower and avoid the bumps and cracks on the roads.

if you are worried about ride qualitly then go for the 8k/6k setup. im sure those are much more street friendly and still perfom well.
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Old Oct 6, 2007 | 07:09 AM
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Default Re: (non-VTEC)

no i already have yellow gc's and 460 / 380 rates. they're WAYYY too soft IMO. i'm selling them to my friend once i get the selects.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PIC Performance &raquo;</TD></TR><TR><TD CLASS="quote">
Spring rate is the one of the largest factors in determining a car's ride quality, that is not the job of the shocks. They affect ride quality, but only when severely over/under-damped. </TD></TR></TABLE>

when severly under / over damped? how are you able to determine this? is it easily felt?
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Old Oct 6, 2007 | 07:40 AM
  #21  
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Default Re: (gsr x civic)

Yes its pretty easy to notice. Either way the car rides like crap, but more so when it's over-damped. Meaning, the spring is too soft / the shock is valved too stiffly for the spring. In the most extreme example, replace the shock with a solid steel tube and imagine how that would affect the ride and performance. Under-damping is the opposite.
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