Ground Control faq/video/picture/ideas thread

[miwialex]

I see that there is only an option to make the front suspension double adjustable. Why isn't there an option to make the rear double adjustable as well? Will there ever be an option to have a double adjustable rear?

[SubieNate]

Originally Posted by GC86

You must lose travel as you lower the car. If not, two things will happen: the tires will hit (albeit very rare on FT86) or the suspension will be too soft until whatever bit stops moving over a bump, which gives a bad ride.

This would be like jumping off a building, landing on a giant soft pillow, and then the pillow is so soft you hit the pavement.

Technically speaking, if there is room for the wheel up in the arch and an appropriate roll center adjuster is used, is there any reason you can't have as much or more bump travel as stock but at a lower ride height?

I thought that the main issue with too soft a suspension at a lower ride height was twofold, with the first issue being hitting the bumpstops (lack of sufficient travel for the spring rate chosen) and geometry, e.g. once lowered without a roll center adjuster, the "healthy" portion of the camber curve is smaller, and in some cases non existent because the lowering has gone past the limits of the stock suspension geometry.

I saw a race e30 m3 in which they cut and moved all of the suspension mounting points up further into the chassis to lower the car while maintaining stock travel and geometry. Obviously the majority of us aren't going to go cutting out shock towers up and extending them but I don't see any reason why we can't maintain a good amount of bump travel at a lower ride height with a properly setup system.

Now, in reality, the amount of bump travel used by a stiffer suspension is reduced just by the fact that the springs are stiffer and it takes more to compress them to the same extent, but that doesn't mean it isn't good to have good margins still.

Nathan

[GC86]

Originally Posted by miwialex

I see that there is only an option to make the front suspension double adjustable. Why isn't there an option to make the rear double adjustable as well? Will there ever be an option to have a double adjustable rear?

Definitely yes, the double adjust rear are just not ready yet.

[Jackson]

Originally Posted by GC86

This would be like jumping off a building, landing on a giant soft pillow, and then the pillow is so soft you hit the pavement.

Haha!

[xwd]

Originally Posted by 7thgear

link? was not aware.

It's in the Solo2 rulebook for the last decade or so I think... You can find it online just google for 2012 Solo Rulebook.

[7thgear]

Originally Posted by dwx

It's in the Solo2 rulebook for the last decade or so I think... You can find it online just google for 2012 Solo Rulebook.

13.5

3. Adjustable spring perches are allowed, but the spring loadbearing

surface must be in the same location relative to the shock mounting

points as on

i assume you're refering to this? see

[GC86]

Moved from another thread to here:

Originally Posted by uspspro

What spring rates are you providing when someone orders one of the defined options on website, such as "touring," "aggressive," etc?

At what spring rates, do you recommend using each of the three damper options?

[JoeBoxer]

If i got the coilover conversion now could i add Bilstein's later or would it be better to wait and do it at the same time?

[GC_Adam]

Originally Posted by JoeBoxer

If i got the coilover conversion now could i add Bilstein's later or would it be better to wait and do it at the same time?

Because Bilstein has not released anything in regards to your car I can't say if our current coilover kit would work with them. If your firm on using Bilsteins with the GC coilover kit I would wait for right now.

[JoeBoxer]

I'm not set on bilsteins but would prefer to not use the Koni inserts. I want to keep a factory style upper mount, no camber plates or I would just get your whole kit.

[SubieNate]

You can use koni inserts with stock tophats IIRC.

[JoeBoxer]

Originally Posted by SubieNate

You can use koni inserts with stock tophats IIRC.

Yeah I just don't want inserts I'd prefer a full replacement.

[uspspro]

Originally Posted by GC86

Moved from another thread to here:

Originally Posted by uspspro
What spring rates are you providing when someone orders one of the defined options on website, such as "touring," "aggressive," etc?

At what spring rates, do you recommend using each of the three damper options?

Thanks for moving this, any answers??

[GC_Adam]

Originally Posted by JoeBoxer

I'm not set on bilsteins but would prefer to not use the Koni inserts. I want to keep a factory style upper mount, no camber plates or I would just get your whole kit.

Joe, we also offer a "Street System" for your car that reuses your factory strut/shock mounts. This will include front GC Black strut housings w/Koni (single adjustable only) inserts, GC coilover hardware, Eibach springs, and Koni single adjustable rear shocks. This system is $1349.

I'll be posting some pics in the next couple of days.

Any questions about this call,email, or PM me

Adam