Ground Control Coilover Sleeves
 

Im looking at buying these sleeves to mainly lower my car. I am aware that a full coilover setup is way better and worth the money. But! I do not or will not have that kinda money to spend anytime soon lol just married and starting a family:nod: so i searched= nothing. wanted to know if there is any requirments to install them? such as grinding and cutting on the strut? and how well are these springs? lol what i mean is will i be bouncing all over the place? i did the stupid ricer way and cut my springs and OH MY GOD that was shitty and i could not drift for shit!! but the car looked sick. any help or info please or links to somone else who is using ground control.

thanks

in the rear they literally just drop in. in the front since the diameter changes you need a different top spring perch, but i think they come with.

the ride depends on the spring rate you choose, and the shocks you have or decide to go with.

you should call and ask what rate they suggest for the shocks you have or want. plus the rate is going to vary with how you use the car. a street car vs roadrace are going to be different

not trying to be vague, but its probably easier just to call em

cool will do. Really my main concern was to slamm the car and ride pretty damn decent. ill call and ask about the spring rates. when i put them on i plan to put them on the lowest setting but i dont know how low that actually is. does anyone have pics with ground controls? im also running kyb struts. thanks

i daily drive and weekend drifting

I'm not sure 'slamming' a car and ride decent can go in the same sentence, you can lower it a little and still ride fairly smooth, but you keep lowering it and it get's stiffer and stiffer, IE rougher ride

There is more to it then the springs/coils. You're going to need some rear camber adjustment if you wish to get it properly aligned, so you need to figure that into your budget. Without a proper alignment your ride is going to suffer.

Thats true

Pick one...you can't be comfortable in both.
It's either going to be suited for one or the other, or crappy at both.

okay so lower with springs made for lowerring will stiffin me up. cool i dont want to be bouncy. and please assume im not a retard newb. i will adjust my alignment as needed in the front. i love the camber the rear has when lowered. yes it wears the outside of my tires. so what. my question is will ground control get me lower than 1.5 inches or is that all???? cuz if so ill purchase tein springs for 170 that drop 1.5". i want to get whatever will get me lowest. anyone tried ground control? and i pick drifting over daily driving lol i try not to drive inless nessacary. i live a block away from work. thanks for the help so far

I suggest when ever you have the money to upgrade the struts to Koni Yellows if you do get the G/C Sleeves, one of the best combination for a spring/shock combo. I have Teins S-Techs right now on my FC and running stock rims & I have a 3in finger gap & they're ok for DD but wish they were a bit more stiffer, I use to have G/C sleeves on my old Civic & it was good for about a 2in drop & were good for DD & the occasional back road run. Although a Civic isn't a 7 I think it's safe to say they should be a good replacement for cut springs.

Also met some dude that I believe removed the perches of the G/C's and I believe he dropped about 3-4in but that compromised handling but he was only into looks & was installed in a Corolla.

There are alot of people who ride low, drift and are comfortable daily drivers.

With the amount of homework, time and customizing needed to install ground controls and new struts/shocks *+ cash* , I would recommend full coilovers. Alot of adjustments availible. Proper ride height adjustment.

The bouncing comes from the shock/strut not being valved to control the spring and from bouncing off the bump stops. Don't try to throw a stiff spring on the car and keep the stock type struts. You will need a better shock or strut like a Tokico or Koni. The idea of a stiffer spring when lowering the car is to keep it off the bump stops. You have less bump travel to work with so you better have better control of the mass of your car, ie. stiffer spring.

thanks carlos.......... so i leening more towards the ground controls. cut springs are bouncy as hell so the right lowerring spring should be stiffer. dont really car about how i ride around town as long as im low.

I don't think you're quite aware of what Ground-Control does, or is capable of. GC does have some off-the-shelf setups, but it is FULLY customizable. You want to go low? They can set you up with a spring so short you are resting on the bumpstops, or a spring so tall you look like you're ready for the Baja 1000.

What Ground control supplies you with are the adjustable perches. The springs that come with their kits are supplied by Eibach. And no, they are not their "pro-kit" or "sportline" springs. They are the Eibach Racing Spring (ERS) line. here is the 2010 catalog http://performance-suspension.eibach...10-catalog.pdf . You need to look in the "2.5 inch" diameter section. You can get the GC kit with any of those springs.

Also, if you are looking for a good ride, don't forget that the damper is the most important part of that equation. If you dont plan on running good dampers with the springs you will be supplied with in the GC kit, I'd just go with the Tein springs you are gonna buy.

Ground control sells eibach springs, they come in any rate and length you can imagine and some you can't. so lowest setting depends on the length of the spring you choose. if you raise it all the way up on a 7" long spring it'll be higher than all the way up on a 6" long spring.

not true at all. one of the nice things about the rx7 is that even in "full race trim" the springs arent super stiff, and going a little softer doesn't hurt the handling much at all.

we used to run 300 to 350 front and 200-275 in the rear, which handles great, and still rides just fine.

well when i look for springs from ground control they only had two as a option. same sizes but different rates. my question is will the teins or ground controls get me lower? if say i can get any length spring from gc then do you have any suggestions that you know will work? thanks everyone. getting really close to answerring my question. i dont care about ride comfort.

I wasn't referring so much to the spring rates as the ride height.
Street cars suffer a lot of abuse when lowered to race car heights.

I had a ground control setup on my fc. I was able to get a comfortable ride with what I would consider an agressive stance. Pick them up used.

There's a lot of good information here that I wasn't aware of concerning ground control, thanks guys.

cool this was what i was wanting. somone who has used them before. aggressive stance? was that on the lowest setting or did you leave some threads left on the sleeve? any pics? and ive seen use ones and they are asking as much as i can pick them up brand new. free shipping too.

http://performance.importrp.com/grou.../i-150654.aspx

If you would like I actually took them out of the car recently to move them to another project I will send you pics of where they were threaded and the actual spring rate. By aggressive I mean I had the lowest drive hight that could obtain, while maintaining both good stability and control without having the roll over effect on the front end in hard cornering. I have used other products as well, but felt the car was rolling over on the front end in cornering unless I had made them so stiff the ride was uncomfortable. I will get shots of both the front and rear as I had them in the car including the settings on the adjustables if you would like. It took me a long time of testing to get this right.

true!

our honda in my sig would be an example of a car that's unstreetable with the race suspension, its so stiff that bumps just launch the car

i should go measure the car first, but i think the car on the left is running a 7" front spring and an 8" rear (or maybe its 6" and 7") and its all the way UP. the car on the right is stock. the car on the left can go at least 2" lower, but its a street car, and there are bumps on the street

so its simple pick a shorter spring and the car will be lower, pick a longer spring and it will be higher. adjustment range is from the top of the shock body to maybe 3" below that

and yes we have matching FC's, they are both ABS equipped 87 gxl's, built within a month of each other.

j9fd3s so the pic of ur cars...one of them has gc's? is it on its lowest setting? and the bumping, i meany the car giving out and the hitting the ground when i hit a bump. so if its stiff it will throw it in the air, i think thats better. i shouldnt be going over 30mph. and thanks budmanracing. big help. by looking at ur pics it will be a lot easier for me to tune my sleeves. i wont be starting from scratch. thanks everyone. i knew i joined rx7club for a reason. awesome people that have knowledge and share the same passion of rotarys.

the car on the left has gc like stuff and its as HIGH as it will go. the one on the right is stock

nice. well i have good freind thats into hondas and he just did a five lug swap. well he ordered the gc sleeves yesterday for my bbs rims. so 400 dollars for stock fc bbs rims. i didnt complain i just told him i wanted suspension he said done. so next week ill get them and out them on. ill post pics. ill do two pics. one of them all the way down and the other where i find most comfortable and aggressive looking. this is an awesome thread for anyone who will be wonderring about ground controls lol