Ground Control coilover sleeves - discussion

[20-CG5-01]

When I was searching for my suspensions, I pmed all the GC + Koni vendors from Honda-tech and Dan@assultech had the best price, this was about a year ago though. It did take about a month for my suspensions to get delivered though because they said they didnt have many of my spring rates for the accord in stock.

On the springs they can come in metric or english, good thing for me the metric was in front and rears were in English. I'm a 4cyl so your spring rates might be a little stiffer in the front, I'm not sure though.

Here are my rates.

Front = 200.64.77
Rears = 800.250.300

There is a formula to make metric to english, its on a site somewhere lol.

Found it.

The conversion from Metric to English is (/25.4, /25.4, x5.7)

Example: 200.64.58 (Metric) = 800.250.300 (SAE) = 8 inch spring thats 2.5 inches in diamiter and rated at 300 Lbs/inch

8" , 2.5" , 330 lb/inch

 

[RedRyder]

Bump...getting ready to buy.

Steven, I know you said if you could do it over again you would have gotten custom rates. Why is that? And what do you have now, I mean are the factory rates 12k front and 8k rear? I also read somewhere you wish you could have gotten 7" springs instead of 8". Is that just because you'd like to be able to go even lower?

For my setup:
I won't be tucking tire, and I'm leaving the fenders as is. The tires will basically be flush with the fenders front and rear, and I want barely a finger gap. Are the default rates stiff enough that the fender won't rub on the tire when I hit a normal dip/bump in the road? That's the big question here.

I am at 25.25 F and 25.5 R now. I pretty much don't want to go lower than 24.75, because that will yield maybe half a finger gap for me. Basically want a functional setup with little finger gap, but stiff enough springs that the fender won't make contact with the tire unless I hit a big dip/bump.

 

[truWarier02]

Default rates are 8K front 6K rear. And the shorter the springs, the lower you will be able to go. That's why you hear about people cutting their springs, which is, of course, not a smart option.

I think spring rates of 12K/10K would be ideal for your situation, considering that you won't be modding your fenders. But I can't 100% guarantee that you won't rub occasionally though, even given the stiffer rates. If anything, you should at least relocate your rear bumper tabs as that's the area where you'll more than likely rub.

Hope that helps a bit.

 

[20-CG5-01]

Bump...getting ready to buy.

Steven, I know you said if you could do it over again you would have gotten custom rates. Why is that? And what do you have now, I mean are the factory rates 12k front and 8k rear? I also read somewhere you wish you could have gotten 7" springs instead of 8". Is that just because you'd like to be able to go even lower?

For my setup:
I won't be tucking tire, and I'm leaving the fenders as is. The tires will basically be flush with the fenders front and rear, and I want barely a finger gap. Are the default rates stiff enough that the fender won't rub on the tire when I hit a normal dip/bump in the road? That's the big question here.

I am at 25.25 F and 25.5 R now. I pretty much don't want to go lower than 24.75, because that will yield maybe half a finger gap for me. Basically want a functional setup with little finger gap, but stiff enough springs that the fender won't make contact with the tire unless I hit a big dip/bump.

The roads i take to work everyday isn't bad, but when it does it bounces a little. You'll be fine with 800.250.XXX if you dont want to go lower than 24". Your tire won't hit your fender walls at all. Im at 23.25" all around atm and want to go atleast another .5" in the front. My rears can, but not my fronts because they are at the lowest setting. If you are kinda weary of 8kg in front get 10kg front and 8kg rears.

My spring reads...
800.250.440 front (8kg)
800.250.300 rears (6kg)

Default rates are 8kg/6kg. If I had a chance to buy it again it would be...

700.250.550 front (approx 11.4-12kg)
800.250.440 rears (8kg)

You should stay with 8" springs if don't want to go lower than 23.5" in the front.

Even with default rates my control arm has never hit my anything even with big unexpected dips. But remember, you also do have a bigger motor than i do in the front so i would recommend 10kg fronts for your satisfaction. Plus even if the rates are a little to stiff, you can always adjust your Koni back to a softer setting.

 

[Mikey]

Yay. Can't wait to see how the 12/8 setup turns out. You'll be the guinea pig, lol. If I like the way yours sits, ill follow suit. The above post have me curious though. Stock rates of 8/6 seem a bit much for my tastes. 12 seems a bit much too, so I'll wait and see how yours turns out. If I don't go with 12/8, I might even go 10/8. All just depends.

 

[20-CG5-01]

For you V6 owners, I would recommend atleast 10kg on the safe side even if you don't plan on slamming the ride.

 

[99accord boi]

whether or not u rub on hard dips depends on ur spring rate AND the dampening setting on ur koni because dampening plays a bigger role then spring rate wen it comes to hitting dips stiffer springs help with initial squat wen making turns
i know this because i went from 10kg to 15kg swift springs on my type 2's and i still hit control arms everywhere i used to just not as hard as i used to

 

[Mikey]

For you V6 owners, I would recommend atleast 10kg on the safe side even if you don't plan on slamming the ride.

Front or rear?

 

[SykVSyx]

I may end up going a different route altogether now, after some discussions with fellow member's.

The suggestion for Chris to go 12/10 was what Ken recommended for me because of my audio setup in the back. Chris, not sure that you would need the back end that stiff, but if you carry alot of stuff/passengers, then that would make sense.

 

[RedRyder]

Thanks for the feedback guys, this is great. Sorry I have so many questions, I just don't want to buy 12k and wish I'd gotten 10k or vice versa. I want to do this right the first time.

I think spring rates of 12K/10K would be ideal for your situation, considering that you won't be modding your fenders. But I can't 100% guarantee that you won't rub occasionally though, even given the stiffer rates. If anything, you should at least relocate your rear bumper tabs as that's the area where you'll more than likely rub.

Thanks Davis. Do you think a 10k in front is too soft for what I’m planning to do?

The roads i take to work everyday isn't bad, but when it does it bounces a little. You'll be fine with 800.250.XXX if you dont want to go lower than 24". Your tire won't hit your fender walls at all. Im at 23.25" all around atm and want to go atleast another .5" in the front. My rears can, but not my fronts because they are at the lowest setting. If you are kinda weary of 8kg in front get 10kg front and 8kg rears.

By fender walls you mean the part of the fender that people roll, correct?

Default rates are 8kg/6kg. If I had a chance to buy it again it would be...

700.250.550 front (approx 11.4-12kg)
800.250.440 rears (8kg)

Why is it that you would prefer to have 12k in front?

Even with default rates my control arm has never hit my anything even with big unexpected dips. But remember, you also do have a bigger motor than i do in the front so i would recommend 10kg fronts for your satisfaction. Plus even if the rates are a little to stiff, you can always adjust your Koni back to a softer setting.

Alright it sounds like 8k is good for the rear, if I won’t rub with .25”-.5” of gap (except on big dips/bumps obviously). I do not have a system and do not plan on getting one. And I rarely let anyone in the back seat.

For the front, I am leaning toward 10k. But I just want to make sure that the suspension travel will not be such that the tire will hit the fender under normal driving. I guess maybe the Koni dampening plays a big role here and I’m forgetting that.

Do you think 12k is excessive for what I'm trying to do?

whether or not u rub on hard dips depends on ur spring rate AND the dampening setting on ur koni because dampening plays a bigger role then spring rate wen it comes to hitting dips stiffer springs help with initial squat wen making turns
i know this because i went from 10kg to 15kg swift springs on my type 2's and i still hit control arms everywhere i used to just not as hard as i used to

Right now I have the Koni’s turned 1.5 turns front and back, and I think they turn a total of 2 turns.

How big was the difference going from 10kg to 15kg?