|
|
|
|
|
|
| Product |
|
SKU |
|
Price |
|
|
Ground Control - E21 S/A Coilover Kit (Complete Package)
|
|
|
GC-SACK-E21 |
|
$1,550.00
$1,499.95
|
|
|
|
Engine Type: 4 cyl and 6cyl models
Chassis Type: All E21 (inc 320, 323, 320/6, etc)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Ground Control coilover kit for the BMW E21 is
your ticket to serious handling performance!
Provided here is a comprehensive package to finally upgrade your
E21 and get the true street or track performance you have been
craving...
After some persuading, we got Ground Control to bring back their
unique E21 kit, and now at a better price than ever...
Customer seeking to transform their E21 into optimal performance
machines have found that even the popular H&R + Bilstein setup
is maybe not as sporty as they desire: high ride height leaves
wheel gap, low spring rates can't keep up with today's higher grip
tires, ride height is not adjustable to suit the drivers
needs...
OK for most street cars, but if your looking to get the most out of
your E21 than this is probably not what you were looking for.
The Ground Control package for these BMWs is a proven
winner:
We recommend this kit for the customer that wants the best looking
ride height and stance, spring rates on demand, height
adjustability, and most importantly: high function for performance
driving.
If you plan on Autocorossing, or doing serious Drivers School days
with your E21, coilovers are a must. A koni based solution means
that if you select mils spring rates, your car will look great and
ride fantastically too! You may call or email us to find out what
spring rates are best for your needs.
VAC Tech's Tip:
As the E21 chassis isn't as ridged as the later E30 3-series, and
is lighter; we recommend keeping the spring rates a bit lower than
one might expect. This will keep ride quality a bit better and keep
the tires contact patch connected to the pavement for higher grip
levels and better cornering.
- The complete GC kit for the E21
includes:
- GC E21 Front Camber Plates
- GC E21 Rear shock mounts, (lifetime warranty)
- GC Bump Stops for all four dampers
- GC Easy to change billet height-adjustment collars and
adjusters
- Eibach Linear Springs, in your rate of choice (lifetime
warranty)
- Coilover compatible special stroke Koni Front strut
inserts
- Coilover compatible special length Koni Rear shocks
- Available for ALL E21 Models, but please specify in box
above.
- If you cannot decide on a spring rate, you may specify your
general outline of use of your car in this box as well.
| |
Popular Spring Rate
Combos |
| Controlled & Comfortable |
300 lbs/in Front
250 lbs/in Rear |
| Sporty Street Use |
350 lbs/in Front
300 lbs/in Rear |
Hard Street &
Track day |
440 lbs/in Front
350 lbs/in Rear |
| Mostly Track |
500 lbs/in Front
440 or 500 lbs/in Rear |
Install Notes: Pro install recommended, assembly and
welding are required by the end user for E21 coilovers.
For
those who want the ultimate Ground Control setup, GC can will
reinforce mounting points, installing spring perches/ sleeves,
assemble nad and powder coat your struts casings (as seen in the
photo) for $225 (select this option above, this service
requires your strut housings to be mailed in)
*Image is example only, E21 suspension does require assembly and
professional install is highly recommended.*
(4) dampers ([2] front strut
inserts, [2] rear shocks)
Ground Control valved Koni Front dampers:
Sport Strut inserts that offer extremely controlled body movement.
Awesome modern technology for durability and street or track ready
performance.
Ground Control valved Koni Rear shocks:
Aids in putting power to the ground and offers consistent body
control. Tuned to dial the car to your liking, Koni shocks offer
excellent traction in this regard
Ground Control Height adjustment:
Ground Control Threaded Sleeves
This system is designed to eliminate
stress risers caused by machining notches into the strut housing.
Unlike other companies that claim superiority by cutting threads
into a critical component of the suspension, Ground Control uses
engineering common sense to maximize the strength of the
suspension.
Ground Control Adjustable Spring Perch: A unique design, that uses
an allen head bolt to clamp the single threaded perch into the
correct position. No secondary pieces are needed to "jam" the
threaded perch into position. This method of clamping onto the
threads also prevents sand, grit, and water from getting into the
threads, which is a common problem with jam nuts.
Pair (2) front Camber
Plates:
Ground Control Racing Camber / Caster Plates More camber adjustment
than stock, caster adjustment, aircraft bearings, engraved with
calibrated degrees, with stainless steel reinforcement. Every
component is anodized or plated, including fasteners. Adds extra
travel to avoid excessive bottoming out, this is a very well
engineered product. The stainless steel reinforcement prevents
electrolysis between the steel fender and the aluminum camber
plate.
Camber and caster are separately adjustable by sliding the mounts,
without removing any components from the car. The priority of this
design is to allow fast, repeatable alignment changes at the
track.
The Ground Control camber plates feature two sets of bearings, a
proprietary bearing, made to our specs by Aurora in the USA, which
allows for articulation of the shock shaft. This spherical bearing
is very understressed, as the Ground Control design does NOT
support the weight of the car on the spherical bearing. Instead,
the weight of the car is supported by a completely separate
articulating needle bearing, which is also manufactured for Ground
Control in the USA.
4 Eibach ERS springs, (not pro-kit), with a race OR street
spring rate:
Eibach Springs Any spring rate is available. Eibach springs are
made on German machines both in the USA and in Germany, however all
Eibach springs have a lifetime guarantee against sagging, rate
change, or any manufacturing or material failure. Lifetime
guarantee. Compare.
(4) Ground Control bump stops (made in Germany):
Ground Control Bump Stop We do not just ask you to reuse your stock
bump. The stock bump stop is designed for stock suspension. GC
provide a bump stop designed to work with their suspension. These
are specialty foam, same quality as OE BMW parts, but made to our
specs in Germany.
2 Rear ride height adjusters:
Ground Control Rear Ride Height Adjustment Kit Billet aluminum
threaded adjusters press onto the top of the rear control arm.
(2) Rear Upper Shock Mounts:
A unique to Ground Control
heavy duty design for great feel and control along with streetable
comfort if needed. Reduced fatigue to chassis shock mounting points
and better response from your suspension. 6061 aluminum and GC's
lifetime guarantee.
CUSTOMER REVIEWS
There are currently no reviews of this
product.
Submit a Review
|
The
Your Shopping Cart
is currently empty
|
