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Tightening up the suspension.

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Old 09-18-2014, 07:27 AM
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Default Tightening up the suspension.

I want to upgrade my suspension,problem is my budget is limited.
Here are the 3 main components,that I'm looking for
-ground control springs + koni yellows
-energy suspension full bushing kit
-traction bar?
The car is a stripped out civic eg6,It's mainly street used with the occasional track event.
My current suspension consist of worn out stock bushes,koni yellows with eibach lowering springs,and the stock EG6 sway bars.
What spring rates do you think I should use? I was thinking about 10kg front and 8 rear? I don't care about the ride comfort,I like the suspension stiff.All I'm interested in is good handling.
Also do you have any opinions on those springs http://www.ebay.com/itm/390930394877?_trksid=p2055119.m1438.l2648&ssPageName=STRK%3AMEBIDX%3AITA lot cheaper than ground control,but can you get custom spring rates?

I choose the energy bushings for only one reason,they are 135 bucks....I don't know much about them,I've never used them,but they seem to be the best option in that price range?

Traction bar,again I've never used that thing.Seems like a simple design,that works! I've read some reviews,and people seem happy with them.I like the fact,that they pretty much eliminate wheel hop.
If I decide to get a traction bar,it looks like I have 2 choices
Ebay crap one- http://www.ebay.com/itm/121435629435?_trksid=p2055119.m1438.l2648&ssPageName=STRK%3AMEBIDX%3AITOr the 2 times more expensive hardrace one- Hardrace Traction Bar Kit - 92-00 Civic / 94-01 Integra - JDM Honda Parts USA
The design is pretty straight forward,so I guess the only difference between them is that the hardrace one is better made ? Has anyone used the ebay one,any opinios?
I'll probably upgrade the sway bars too,with stock ek9 ones-26mm front and 22 rear.But this will happen later on.
Old 09-18-2014, 09:31 AM
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Default Re: Tightening up the suspension.

Just get your current koni struts revalved. Ground control "coilover" springs are made by eibach. Take your car to the local autocross events and learn about your car first. Unless your bushings are bad there's no need to get new ones.
Old 09-18-2014, 10:11 AM
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Default Re: Tightening up the suspension.

Matrix coilovers are no different than the standard eBay coils. don't bother wasting your money. Suspension components are not something I would skimp out on.
Old 09-18-2014, 11:10 AM
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Default Re: Tightening up the suspension.

I live in Bulgaria,there's nobody who can revalve them here + they were 7+ years old (they were on the car when I bought it)And in terrible condition. I already sold them and replaced them with new ones.The Eibach springs are WAY too soft,I definitely want something a lot stiffer.Bushings are bad,as I mentioned before.All of the components mentioned above will be replaced,they needed to be replaced a long time ago,I just didn't have the money.So matrix are out of the question.What do you think on the spring rates ? Are they a good choice? My car is a million miles away from me right now,so I cannot test anything. :D I've done my testing and kinda have an idea what I want and need.I just need help on the details.
Thanks guys
Old 09-18-2014, 12:07 PM
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Default Re: Tightening up the suspension.

If I were looking for custom spring rates I'd go with Ground Control. I'd also order the complete package from them so they can send appropriately valved shocks for whatever spring rates you want. You'd probably be able to send them back to GC and get them revalved in whatever specs you need if you ever needed them changed, as well as order different spring rates if you find it's too hard or soft.
Old 09-18-2014, 01:10 PM
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Default Re: Tightening up the suspension.

Ground Control does not make or service (revalve) Koni dampers. I'm not even sure they make Advance Design (their house brand high end dampers) anymore. That being said, I believe Koni is a Dutch brand and surely there is a European service center for them if you wanted to go that route.

Skip the traction bar especially if you are going to cheap out on it. An I modified car works better than a car modified with sub-par parts... every time.
Old 09-18-2014, 02:05 PM
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Default Re: Tightening up the suspension.

So I guess the traction bar is out of the question.In my country I can get the koni's even cheaper then you get them here,since it's a European company.But the choice of coilovers is very limited,basically you can only get the cheap ebay ****.And If i buy ground control and get the 10kg front and 8kg rear will the stock of the shelf koni handle it ? I've read somewhere that 10 kg springs is very near the limit.And if go that route I want my suspension to last,thats a lot of money for me and I don't wanna blow a shock in 3 months.Also I'd rather save the hassle needed for revalving,I gotta send them to a different coutry,pay shipping and wait for them for 1+ months...Basically,I want to get the ground control coilovers from the states,take it with me back home and buy the struts from there,because they are a lot cheaper.I'm just not too sure on the spring rates.
Old 09-19-2014, 12:07 PM
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Default Re: Tightening up the suspension.

Need help on the spring rates,guys.Gotta order soon.
Old 09-19-2014, 05:38 PM
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Default Re: Tightening up the suspension.

Stock Koni yellows can handle like 450-500lbs. Your spine will want less than that with stock koni yellows if you're street driving it.

10k is about 560lbs.

I would also recommend rear bias rates if you're tracking the car at all. 6k front 8k rear, for example. I ran 6k/7k on stock koni yellows on my ITR. It went faster than much more "prepped" FWD hondas that I got on track with....granted it was an ITR.

Comfort is decent with koni yellows if you don't plan to lower more than about 2-2.5"...given that you don't go overboard on spring rates.
Old 09-19-2014, 06:05 PM
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Default Re: Tightening up the suspension.

I'm planing a drop in about 2.5 inches,no more that that.I'm not worried about comfort,I'm used to the ride being bouncy.I just don't wanna bottom out.And for the track use,I'm not too sure.I've been to the track once and all I know is I need stiffer suspension.As I said I'm in the US for a limited period of time and once I go home,there's no such thing as ''decent coiolvers'' so basically I need to blindly buy a set of springs from the US...Can you explain rear bias to me? I know I'm a pain in the ***,but...
Thus far I understood,I probably don't wanna go over 8 KG up front and for the rear ? Isn't 6kg F and 8 kg R gonna be too soft ?
Old 09-19-2014, 07:11 PM
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Default Re: Tightening up the suspension.

Too soft for what?

Conversions you can use:
-Kg/mm to LB/IN. LB/in= (NUMBER IN KG) * 55.88. example 8k x 55.8= 446lb/in
-LB/in to KG/mm. Kg/mm = (NUMBER IN LB) / 55.8. example 500lb / 55.8 = 8.96kg/mm

-Not worried about comfort? You don't want to go much lower than about 2-2.5'' for sake of suspension travel then.

-Blindly buy springs? Ground control. Pick some rates. I'd recommend 6k/7k or 6k/8k. Stiffer rear springs. Switch them around if you don't like it.

Front bias springs usually create a more manageable understeer situation. And they ride better.

Rear biased rates will get you to either neutral steer or over steer depending on how heavy of a bias you put in. The more rear bias you put in, the more agressively the car will ride...till you put too much of a bias in it becomes kind of annoying and skatey. Examples of what I mean: 6k/10k is heavy rear bias. 6k/7k is lightly rear biased.

OR:

Keep it simple and buy a ready-made coilover system. Buddy club N+ or Tein Street Basis are decent systems for under $1k. The car will understeer with either one of them becasue of the front bias on the spring rates.
Old 09-19-2014, 07:27 PM
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Default Re: Tightening up the suspension.

Thank you.Things are much clearer now. I think I'll go 6/8 and as you said and switch them around to see how it is.Tre reason I choose koni + GC is mainly because I can get the GC for about 350 $ and the konis for about 300-350$ so ~600$ for a brand new coilover suspension.I'll look into some.And to see if I got it straight,if I want to reduce understeer as much as possible,best thing to do is get more rear bias,but don't over do it?
Old 09-19-2014, 08:50 PM
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Default Re: Tightening up the suspension.

Yeah, 6k/7k or 6k/8k is pretty reasonable rear bias. Not too sketchy/hoppy and nice, easy willingness to rotate.
Old 09-19-2014, 08:55 PM
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Default Re: Tightening up the suspension.

Thanks,man.I'm ordering this Monday.
And about the traction bar ? Either get a quality one or don't bother getting one at all ?
Old 09-19-2014, 08:59 PM
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Default Re: Tightening up the suspension.

I'm not too versed on traction bars. They're useful for drag racing launches.

For what it's worth...I would skip the poly bushings and use a hardrace rubber kit. Poly bushings tend to wear quickly and I hated the way they ride.
Old 09-20-2014, 06:04 AM
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Default Re: Tightening up the suspension.

If you are upgrading the front compliance bushings (you said you are), the traction bar is somewhat redundant and more likely to cause some binding.
Old 09-20-2014, 12:42 PM
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Default Re: Tightening up the suspension.

Hardrace is too expensive for me.I'm gonna stick with hyperflex,you can't go wrong for 135 buckes...If by chance they last more than a year I'll be happy.Traction bar is defo of the list now.Just waiting for a response from ground control to see what we can work out with them.Meanwhile If someone is selling some good coiolvers for a decent price,PM me.
Thank you guys.
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