GoundControl Coilovers

[primera man]

At least you could use it as a "ironing board" if N.A.S.A dont want it...LOL

[G-Forces]

Oh believe me he some hassled pretty bad at Saltfest this year. I talked to him and he seemed pretty embarassed by it. Not to mention he's probably heard it all before.

[G-Forces]

Originally posted by Nismoboy1
wow nice stuff bump, makes me kinda wish I had a p10 sometimes, they make more stuff you guys lol but i guess i'll stick to what i got

Nismoboy, he doesn't have anything that you can't get for the P11. I'm ordering up a Zex light flywheel today when they open. I'll pair it up with my ACT street/strip clutch I've got already.

[Nismoboy1]

tru tru, i guess it's just a matter of looking around it just seems like theirs more stuff, thats all...

g-force - let us know how it turns out after you install it, DAMN MY AUTOMATIC :zx11pisse

[P10DET]

Installing the Ground Control set-up is easier than installing conventional springs since no spring compressor is needed for installation. If you are using parts from your old suspension, you will need a spring compressor to take that apart.

The rears are very easy. You don't need to remove the rear deck, just the rear seat and that only takes about 5 minutes.

I'm running 340/275 and find it a bit bouncy with the dampers (AGX) at 2/2, but it worked well on the track at Summit Point (Jefferson Circuit). I found the car to ride better than stock (honest) with the car loaded for the trip from Houston to DC.

I think later this year I'll move the 275 to the front and try some 200 in the rear. Since I only do lapping events once a year (SE-R convention - otherwise I race a Sentra SE-R in SCCA ITS) I don't care so much about track set-up. We'll see how the lower rates work out. I think it should be close, but I'm concerned about bottoming. I have a feeling that something like 300/225 may work out best.

Oh, and don't use the lame o-rings GC supplies. Use lame duct tape wrapped around the strut shaft until the collar barely slides on. Then smear the duct tape with RTV and install the collars. This will give you a no clatter set-up.

Geo

[serguy]

Kind Turd wrote:
>Installing the Ground Control set-up is easier than installing >conventional springs since no spring compressor is needed for >installation. If you are using parts from your old suspension, >you will need a spring compressor to take that apart.

My recommendation on this is, purchase the stock rear upper mounts (on P10 anyways), it's like $60 or so for both, then all you need to do is bolt them on, and you're ready to install the suspension. you just unbolt the stock stuff, put it in the garage and bolt in the new AGX/GC setup. I've already helped two other G20 owners do this exact process.. they were happy. (Justin?) ;-)

>I think later this year I'll move the 275 to the front and try some >200 in the rear. Since I only do lapping events once a year (SE->R convention - otherwise I race a Sentra SE-R in SCCA ITS) I >don't care so much about track set-up. We'll see how the lower >rates work out. I think it should be close, but I'm concerned >about bottoming. I have a feeling that something like 300/225 >may work out best.

yeah, I'll mention the bottoming to you *again*.. man you can't weigh much less than me!; -) So I'm sure you'll be bottoming. But that's just IMO.. I could be wrong?

>Oh, and don't use the lame o-rings GC supplies. Use lame duct >tape wrapped around the strut shaft until the collar barely >slides on. Then smear the duct tape with RTV and install the >collars. This will give you a no clatter set-up.

This method works GREAT.. I was there with Mike and Rob when they tried it the first time.. I mentioned Ken's comment about using a spacer and then silconing it in.. then Rob said "hey, what about duct tape as a spacer".. ;-) It works like a charm though.. Rob and Mike are pretty inovative..

Laters.

[P10DET]

Originally posted by serguy
yeah, I'll mention the bottoming to you *again*.. man you can't weigh much less than me!; -) So I'm sure you'll be bottoming. But that's just IMO.. I could be wrong?
[/b]

Well, other than running over a forklift fork in the freeway, I haven't bottomed yet, including when my car was fully ladened traveling to the convention. Of course it was the rear that was carrying the extra weight. I want to try it since it only involves buying one set of springs. It's easily changed back.

Geo

[jburnham]

I have a '91 P10 with AGXs/stock springs which was a little too jiggly. I wouldn't say it was too stiff, it's almost like the AGXs aren't sufficiently dampened for the rebound at the full stock height/extension of the struts. I am hoping that the soft springs, lowered about 1" will give a nice ride and still handle well.

I am already dreading removing the rear deck to do the backs. I messed up my headliner when I put in rear speakers trying to do it and I am expecting that I will only make it worse this weekend. Here's fair warning for when I eventually sell my car - I am a miserable monkey when it comes to cars. Speaking of which, what do you think about putting a little silicone caulk/sealant on top of the duct tape before I put the sleeves on? It would be a minor PITA to remove the sleeves if the AGXs wear out before the car goes to heaven, but it will be really quiet. Is there any reason the sleeve would need to move on the shaft of the strut?

[P10DET]

Originally posted by jburnham
I am already dreading removing the rear deck to do the backs. I messed up my headliner when I put in rear speakers trying to do it and I am expecting that I will only make it worse this weekend. Here's fair warning for when I eventually sell my car - I am a miserable monkey when it comes to cars. Speaking of which, what do you think about putting a little silicone caulk/sealant on top of the duct tape before I put the sleeves on? It would be a minor PITA to remove the sleeves if the AGXs wear out before the car goes to heaven, but it will be really quiet. Is there any reason the sleeve would need to move on the shaft of the strut?

There is no need to remove the rear deck. Remove the rear seat instead.

I slathered some RTV the duct tape before sliding on the sleeves. Then I put some around the top after the sleeves were installed.

I imagine it would be a bear to remove the sleeves, but with patience, I'm sure it can be done.

[u4ikstilz]

are the AGX's supposed to be adjustable in the front and rear?? i just got mine yesterday and it looks like only the rears are. did i get ripped off?

[jburnham]

4 way adjustable up front (on the top of the strut - under the hood using the included tiny screwdriver) and 8 way adjustable on the rears from underneath.

[Beige4dr]

I'm in the process of installing my Ground Controls today. I started with the rears. I removed everything and dissassembled the AGX/stock springs. I ground the lip off the strut so I could slide the sleeve on and it doesn't seem to fit. I kept grinding until I was sure that it wasn't the lip but the sleeve seems to be a hair too small for the body of the strut. I looked inside the sleeve and the inside diameter is a little bigger on the top (based on the lettering on the pre-installed perch). I flipped it over and put the perch on facing the other way (now the lettering is still right side up). It slides on to where the sleeve inner diameter gets smaller. It feels like there is a little spring tension when I am tightening the top nut at the end of the strut, but not enough to prevent perch adjustment. I lower the car back down and....

It's raised about 2 inches over stock in back!

The sleeve must need to slide all the way down to where the old perch was. I re-checked the sleeves for the front -they are the same. I look at the side of the box and it says "For '91/Stock". I am wondering if the strut body for AGX's is different than stock and I need a different sleeve? I guess I am headed back out to take everything apart again.

Any suggestions appreciated - particularly answers:

Is the sleeve supposed to slide down to the old spring perch?

Do I need a different sleeve for AGXs versus stock?

Thanks,
Jim

[drockg20]

Hey guys I work for NASA also i forgot i had a big wing too!

[b-b00gie]

Originally posted by Beige4dr


Do I need a different sleeve for AGXs versus stock?

Thanks,
Jim

Yep, I believe with the GC's you need to specify what brand of shocks you're using... Koni, GAB, KYB, etc...

[Beige4dr]

Third try was the charm. Ground Control overnighted a third set of sleeves which I installed Friday night. Things are good - now comes the fun stuff of trying all of the possible combinations of AGX and GC settings to get it right for daily use.