Ground Control, Spring Rates, yes i searched...

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Old Mar 15, 2004 | 09:46 AM
  #1  
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Default Ground Control, Spring Rates, yes i searched...

yes i have searched the for the topic. yes i have searched for spring rates, yes i have contacted GC themselves, and yes i have found alot of answers....

with that out of the way...

I contacted GC today to find out what would be the best overall spring rate for my CRX with a b series. from what i was told i should go with the 350f and can go with a 450r with a good size sway bar.

now i was told by a few people that the 350 is a little soft up front with a b series and to go a little higher...but not how high i should go.

what i'm looking for is the best overall spring rate #s from people that have used MANY different systems and how they felt about it. i also want to know what systems you all used and wheels/tire combo. list off what you do... street/strip/autox ... and thats about that.

personally i'm thinking that i'll just bump up the spring rates up front to about 400f/450r and see how that works for me. i'll be using my system for mostly street, but i want to hit as many drag/autox events as possible this summer. SO i will need a good system to start with. im using KYB AGX struts because thats what i could afford.

list it off...

keep the topic up for CRX / EF CIVIC ONLY.

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Old Mar 15, 2004 | 10:28 AM
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Default Re: Ground Control, Spring Rates, yes i searched... (mansonclubpuir)

well I'm going to run 375lb springs up front on my B18C1 CRX cuz thats what I had in there already. I run track events. I think that this might be a little soft. I think your 400lbs will be better
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Old Mar 15, 2004 | 10:32 AM
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Default Re: Ground Control, Spring Rates, yes i searched... (mansonclubpuir)

Go here....

http://www.redshiftmotorsports.com/ChrisTech.htm

Best info ever!

-Jake
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Old Mar 15, 2004 | 11:39 AM
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Default Re: Ground Control, Spring Rates, yes i searched... (Superhatch)

i ended up calling GC again and after reading that resource and doing some more searches i ended up getting a 375f and 450r plus i'll be picking up a 22mm sway bar for the rear ... im not too sure on the front sway bar yet.

keep the setups coming.
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Old Mar 15, 2004 | 12:41 PM
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Default Re: Ground Control, Spring Rates, yes i searched... (mansonclubpuir)

Mike, I wouldn't use the KYB AGXs with the Ground Controls. The AGXs just cannot handle those spring rates.

IM me if you want me to explain more.
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Old Mar 26, 2004 | 12:03 PM
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Default Re: Ground Control, Spring Rates, yes i searched... (mansonclubpuir)

hey i have a 92 da with everything behind the backseats gutted, i want to do suspension but i dont knwo what to get ive been reading up on ground control coilovers,, im goingot by tower bars adn a cpillar bar with a rear lower tie bar, and eventually buy 2 recaro seats, waht spring rates should i run for a good stiff right for, an agressive ride and soem track time on the weekends, and what shocks are good and stiff ?? please help haah
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Old Mar 29, 2004 | 10:37 AM
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Default Re: Ground Control, Spring Rates, yes i searched... (Theb20Da)

well after driving on my GC/AGX combo for about a week now i would say the 375f and the 450r from ground control is stiff and satisfying. as far as the KYB AGX struts im happy with them for now, but they will blow by the end of the summer im sure of it. they can not handle spring rates higher than 50% over stock which mine are. i need koni yellows revalved inorder to make this suspension work better.

overall its much better than i thought it was going to be.

Theb20da... search like crazy for spring rates. check more in the auto x road racing forum. there is alot of good info to research there. hope this post could have been some help.
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Old Mar 29, 2004 | 11:49 AM
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Default Re: Ground Control, Spring Rates, yes i searched... (mansonclubpuir)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mansonclubpuir &raquo;</TD></TR><TR><TD CLASS="quote"> i need koni yellows revalved inorder to make this suspension work better.</TD></TR></TABLE>

Mike, off the shelf Koni Yellows with those springs should be fine. No need to revalve them.
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Old Mar 29, 2004 | 12:21 PM
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Default Re: Ground Control, Spring Rates, yes i searched... (mansonclubpuir)

when i got mine they told me 400fr and 300r.......i eventually took them off because i am not a fan of coilover sleeves, i now roll on progress auto swap springs
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Old Mar 29, 2004 | 12:46 PM
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well right know im running 350/450 spring rates with stock front bar and ST rear bar and koni yellow's. in my opinion the the 350's are to soft if i was you i would upgrade to a 400 in the front. im going to do the 450's soon and do 500 in the rear cause the sway bar. but that will be in a few months.

but the best way to get the setting that you want. "cause not every one likes the same ride" would be to put the 400's in and if you dont like them take them out and go up some more! there really not to expensive. IMO but that all depends on your funds!
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Old Mar 29, 2004 | 03:40 PM
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Default Re: Ground Control, Spring Rates, yes i searched... (mansonclubpuir)

i was going with drop zone and they say 450 front 350 back. should i switch them and run 450 in back and 350 in front. i have a 91 hb.
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Old Mar 29, 2004 | 04:11 PM
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Default Re: Ground Control, Spring Rates, yes i searched... (splinter51)

I ran 450r and 350f with Koni yellows and I found the 450r too stiff for street; I've switched them around for this year but I haven't had a chance to try them yet.

BTW I'm using Tom's motorsports coilovers, they're copies of the GC, and I love them. The only thing I had to do was replace the hex screw in the collars, they were too short. This coilovers are only like $50 on ebay too.
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Old Mar 30, 2004 | 06:22 AM
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ok to me having a higher spring rate in the REAR rather then the front makes absolutely no sense at all........where is most of the weight IN THE FRONT, so why oh why would you have softer springs up front?
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Old Mar 30, 2004 | 06:46 AM
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Default Re: (temp)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by temp &raquo;</TD></TR><TR><TD CLASS="quote">ok to me having a higher spring rate in the REAR rather then the front makes absolutely no sense at all........where is most of the weight IN THE FRONT, so why oh why would you have softer springs up front?</TD></TR></TABLE>

People put higher rates in the rear because it makes the car more neutral. Easiest way to put it is: the stiffer end of the car is the end that decides where you go. Having stiff springs up front and soft in the rear is how it comes from the factory and you end up understeering everywhere. You can solve this with a thicker rear sway bar but then you end up with the possibility of damaging the rear subframe because the springs are too light. This is mainly for people interested in auto-x or road racing, not daily driving although some people do prefer the more neutral handling in their day to day affairs as well.
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Old Mar 30, 2004 | 08:53 AM
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Default Re: (Dave421)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dave421 &raquo;</TD></TR><TR><TD CLASS="quote">

People put higher rates in the rear because it makes the car more neutral. Easiest way to put it is: the stiffer end of the car is the end that decides where you go. Having stiff springs up front and soft in the rear is how it comes from the factory and you end up understeering everywhere. You can solve this with a thicker rear sway bar but then you end up with the possibility of damaging the rear subframe because the springs are too light. This is mainly for people interested in auto-x or road racing, not daily driving although some people do prefer the more neutral handling in their day to day affairs as well.</TD></TR></TABLE>


then why not even out the rates and have them the same front and rear?
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Old Mar 30, 2004 | 12:48 PM
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Default Re: (temp)

do you think 450 on rear is to stiff for hb. or would i be better off with 350. i have integra swaybar on back if that makes a diff.
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Old Mar 31, 2004 | 05:04 PM
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Default Re: (splinter51)

does anyone know what stock spring rates are?
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Old Mar 31, 2004 | 06:42 PM
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Default Re: (splinter51)

I run 400front and 450 rear in my hatch. And this is the same spring rates we run on our autox race car that won nationals last year and came in 2nd this year. I drive my car everyday and it rides smooth and comfortablely. Just run the koni's on a quarter turn soft and you will be fine. If you have any questions just click my sig and call the shop my boss he will be more then happy enough to give you advice and suggestions for you.
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Old Apr 2, 2004 | 12:43 PM
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Default Re: (goforbroke)

so are these coil over rates any good? 440/330

https://honda-tech.com/zerothread?id=817412


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Old Apr 2, 2004 | 12:55 PM
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Default Re: (thrty8street)

I also use GC and Koni's, (in fact all the ED's at our shop do with varying rates ) with rates 400 f and 600 r with ots konis, the car is stiff but so inspiring at the same time. I also have a full energy suspension setup. One of our full interior shop ED hatches runs the same rates as I do, but stock bushings with a B16 and it is awesome.
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Old Apr 2, 2004 | 12:58 PM
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Default Re: (hondahans)

what is the advantage of running stiffer in the Rear than in the front?
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Old Apr 2, 2004 | 01:47 PM
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Default Re: (thrty8street)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thrty8street &raquo;</TD></TR><TR><TD CLASS="quote">what is the advantage of running stiffer in the Rear than in the front?</TD></TR></TABLE>

Makes the car understeer less, gives the front tires more grip relative to the rear. Changes the entire balance of the car.


Alex
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Old Apr 2, 2004 | 02:35 PM
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Default Re: (thrty8street)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thrty8street &raquo;</TD></TR><TR><TD CLASS="quote">so are these coil over rates any good? 440/330

https://honda-tech.com/zerothread?id=817412


</TD></TR></TABLE>


up
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Old Apr 2, 2004 | 03:46 PM
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Default Re: (Quik89Si)

after some research i found my rates to be 400/250. is that terribly bad?
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Old Apr 2, 2004 | 03:47 PM
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Default Re: (GSRCRXsi)

sorry they are GC coilovers
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