- Allows for easy adjustment of ride height and corner weights. (1 turn is
equal to 1/8 of an inch change in ride height)
- Allows for lighter weight K-member, control arms and other front end
components to be used reducing both unsprung weight and overall vehicle
- Decreases motion ratio (how much the spring moves in relation to tire
- More predictable spring action.
- Griggs coil over hardware components are made in USA from the finest
aircraft quality aluminum, and sleeve is hard anodized for durability.
- A Torrington thrust bearing at the top provides friction free steering in
spite of spring load applied to the camber plate.
Coil-overs perform two primary functions: Reducing the unsprung weight (the
coil-over springs are lighter do to there more outboard location) and it allows for
the infinite adjustment to ride height.
Secondary benefits are decreasing the suspensions motion ratio, the expression of
how much the spring moves in relation to how much the tire moves. By
relocating the spring outboard to the strut in the front, or to the shock in the
rear, and employing high quality materials, lighter weight and lower rate springs
and spring seats and load supports can be used with increased roll control. This
results in a far better performance package.
We use Koni shocks almost exclusivley for these reasons:
- Steel Bodied with removable Coil over hardweare
- High Pressure, Rebound adjustable so you can adjust ride quality or transitional handling charackteristics as needed
- Requires little to no service over an almost indefinite lifespan.
- Griggs race winning custom valving
The two most important elements in a performance chassis are the tires and shocks
(or struts). Dampers are a better term as their primary purpose is to dampen
motion of the suspension movement of the chassis. So far only Koni provides
the quality and performance we demand of dampers to be included in a GR40 Kit.
And then in units that we have custom built to our specifications.
Proven by over 50 years of international competition including Formula One, and
the only part of our GR40 systems not made in the US, The Dutch company is owned by
the US conglomerate, ITT automotive group. Griggs Racing has worked closely
with Koni in developing shocks and struts over the years that do exactly as required
in delivering a serious performing chassis while improving handling, traction, ride
quality, tire life, and safety. Also, they last virtually forever with very
little service required. Koni’s are an investment you will have for a
very long time. They are not “throw away units”.
Most replacement shock offerings usually “feel” pretty good upon
installation, but after a short time their “low speed” characteristics
degrade with subsequent handling degradation. Plus all other aftermarket units
available are made with inadequate low speed damping, or digression, especially on
compression (bump or jounce). The adjustability of your Konis is easy, if you
follow our instructions. All but the struts are shipped pre adjusted on our
shock dyno and most customers never need to adjust them to attain the ride quality
or race winning performance they desire.
Most Griggs Racing standard offerings for GR40 Mustangs are not found in the Koni
catalog under Mustang. These shocks are derivatives of the Koni oval track
program and the struts are originally from the Koni showroom stock racing program.
With valving perfected to suit our standards, and the win record of GR40 cars to
prove the point, these are a necessary step to tuning any Mustang chassis to
Dual Adjustable rears (and SLA front DA shocks) are usually for
track cars. They have a more digressive compression curve and simple on car
adjustability of rebound makes them the serious club racer’s choice. The
lighter aluminum body reduces unsprung weight for better handling and the special
valving is a big improvement in corner exit adhesion. Dual adjustable shocks
are an excellent choice for use on the rear of serious drag cars.
Single adjustable shocks came in various fixed compression valvings with
Soft – Street use when the best ride is the