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Warranty:
BC offer a 12 month warranty with all of their coilovers apart from the RM and ER series which have a limited use warranty. They are so confident with the quality that they now offer an extended warranty for $100 meaning they will be covered for 24 months!
Nitrogen pressurised dampers:
When you work a damper hard on track or on high speed bumpy roads
you can cause the oil to aerate and cavitation can occour. This causes
foaming which effectively reduces the oils viscosity and so reduces the
units damping effect. High quality oil goes a long way to help reduce
this problem but BC Racing go one step further and pressurise the
dampers with nitrogen. The nitrogen exerts a pressure on a floating
piston which in turn exerts a permanent pressure on the oil dramatically
reducing aeration and so improving the consistency and quality of the
damping. The pressurised nitrogen also adds an additional element of
effective spring rate to the damper unit.
Corrosion protection:
The damper units are black chromed steel to give superb durability
even through the darkest of European winters. The aluminium components
(top mounts, locking collars etc) are anodised and the steel lower
mounts go through an electrophoretic disposition process followed by
powder coating. A random selection of steel components (brackets,
dampers, screws etc) are put through a salt spray test once a month to
check the quality of the protective processes and that anti corrosive
properties are kept at the highest possible standard.
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High quality coil springs:
BC Racing coilovers only use the highest quality steel for their
spring manufacturer. They are produced from SAE9254 high strength
durable cold wound steel.
The springs are compression tested through over 500,000 cycles with less that 5% deformation.
High quality oil:
BC Racing dampers use a sophisticated shim stack design and high
quality oil to consistently control the compression and rebound speed of
the damper rod even under the most extreme conditions.
As the vehicles travels over rough ground the compression and
rebound motion of the damper rod heats the oil. Poor quality dampers
use cheap oil whose characteristics alter with varying temperatures.
Its vital that high quality oil is used that can maintain consistent
viscosity under a wide temperature operating range. Once the oil start
to degrade, its properties change leading to damping changes leading to
changes in the vehicles handling characteristics.
BC Racing ensures that only high quality oil is used so that
damping rates are maintained not only for the moment in hand (i.e.
whilst out for a back road blast on or track) but that long term
longevity is maximised with oil that doesn't degrade quickly over time
thus extending the dampers operating life significantly.
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Pillowball upper mount
Camber adjustable top mounts
Aluminium top plates
30 way adjustable damping
Adjustable spring platform
Height adjustment via bottom mount to retain full damper travel
Dust boot to protect damper seals
* some features are dependent on model
The V1 series coilovers use a large 44mm diameter piston in a 50mm diameter damper body to maximise oil capacity.
As the damper unit opearates the oil contained within heats up.
The viscosity of oil changes as its temperature varies which can lead to
changes in the damping characteristic of the unit.
BC Racing only use a very high quality oil with their coilovers
but go that extra mile to maximise performance and build their V1 range
with a large 50mm diameter damper body. This increases the capacity of
the unit which increases the volume of oil contained which in turn
reduces the peak temperature and so significantly improves damper
performance.
Ride height is determined by the position of the coilover bottom
mount. The mount can be wound up and down the damper body to give a
full range of adjustment from near standard ride height to so low it
wouldn’t be drivable on the road.
Because ride height is determined by an adjustable bottom mount
rather than spring platform you retain full damper travel regardless of
the ride height run.
V1 coilovers feature 30 way damping adjustment that combines both
rebound and compression in one adjuster for simplicity and ease of use.
This adjustable facility allows you to fine tune the vehicle to meet
the relevant conditions.
By tweaking front and rear damping you can adjust the way the car
handles. Increasing damping force on the rear relative to the front, for
example, will start moving the vehicle into a more oversteer orientated
stance.
If you want to go drag racing in a rear wheel drive car then you
want the back of the car to squat off the line to maximise weight
transfer to the rear and therefore onto the rear tyres. This maximises
traction and helps prevent wheel spin. To achieve this you would soften
the rear dampers to allow faster compression. If you had the rear
dampers set to hard, as you might run the car on a race track, then the
car would be less inclined to squat so traction would be reduced.
Conversely, if you want to go drifting and are finding it hard to
break traction and are having problems with understeer then making the
rear dampers harder will help reduce traction whilst making the front
dampers softer will give greater front traction. This will make the
rear of the car looser whilst minimising understeer thus altering the
vehicles handling characteristics more towards drift than drag, road or
track.
Many of the BC Racing V1 coilovers come with pillowball upper mounts.
The mount itself is made from aluminium alloy, anodised and then bead
blasted to give a high quality, durable finish.
The pillowballs themselves are of Japanese manufacture and their
solid nature eliminates any flex or play associated with the standard
rubber mounts so improving response and handling.
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| BR Series Street and Circuit Coilover
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Pillowball upper mount
Camber adjustable top mounts
Aluminium top plates
30 way adjustable damping
Adjustable spring platform
Height adjustment via bottom mount to retain full damper travel
Bearing mounted upper front spring platform
Dust boot to protect damper seals
* some features are dependent on model
The BR series coilovers use a large 44mm diameter piston in a 53mm diameter damper body to maximise oil capacity.
As the damper unit opearates the oil contained within heats
up. The viscosity of oil changes as its temperature varies which can
lead to changes in the damping characteristic of the unit.
BC Racing only use a very high quality oil with their
coilovers but go that extra mile to maximise performance and build
their BR range with a large 53mm diameter damper body. This increases
the capacity of the unit which increases the volume of oil contained
which in turn reduces the peak temperature and so significantly
improves damper performance.
Corner weight adjustment:
The lower spring platform of the BC Racing coilovers are
adjustable. This allows the car to be set up for corner weighting to
achieve perfect balance and ensures that maximum tyre efficiency is
achieved.
Ride height is determined by the position of the coilover
bottom mount. The mount can be wound up and down the damper body to
give a full range of adjustment from near standard ride height to so
low it wouldn’t be drivable on the road.
Damping adjustment:
BR
coilovers feature 30 way damping adjustment that combines both rebound
and compression in one adjuster for simplicity and ease of use. This
adjustable facility allows you to fine tune the vehicle to meet the
relevant conditions.
Pillowball (rose joint) upper mount:
Many of the BC Racing BR coilovers come with pillowball upper
mounts. The mount itself is made from aluminium alloy, anodised and
then bead blasted to give a high quality, durable finish.
The pillowballs themselves are of Japanese manufacture and
their solid nature eliminates any flex or play associated with the
standard rubber mounts so improving response and handling.
Camber adjustment:
If its possible to include camber adjustment on your vehicle
then the BC Racing coilovers automatically include camber adjustable
aluminium pillowball top mounts. These feature the same high quality
Japanese manufactured pillowball but give the added benefit of an
adjustable top mount that allows camber to be set to suit your needs be
it road, track or drift.
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| RM Series Inverted Coilover
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Inverted monotube damper bodies
Pillowball upper mount
Camber adjustable top mounts
Aluminium top plates
30 way adjustable damping
Adjustable spring platform
Height adjustment via bottom mount to retain full damper travel
Bearing mounted upper front spring platform
Dust boot to protect damper seals
* some features are dependent on model
Inverted damper:
The BC Racing RM series feature high quality damping
adjustable monotube inverted dampers at the front or front and rear,
depending on vehicle. Inverting the damper unit brings with it a number
of advantages.
Reduced unsprung weight:
Unsprung weight is reduced by moving the oil and gas reservoir
way from the hub and attaching it to the shell. Unsprung weight is
vital to a cars performance as a lighter wheel and hub assembly which
readily moves in response to road bumps will have more grip when
tracking over an imperfect road. A high unsprung weight can lead to
wheel hop over bumpy ground and will reduce the quality of the ride and
also ultimate handling as anything that impairs the suspension
ability to maintain contact between road and tyre will be of detriment
to the cars performance.
Reduced heat transfer to the gas and oil reservoir:
By inverting the oil and gas reservoir the oil and gas is moved
away from the hub assembly, this reduces the amount of conducted heat
being transferred from the braking system to the hub then to the damper
and then on to the gas and oil. By keeping the gas and oil
temperatures down BC Racing RM coilovers keep damping rates more
consistant resulting in better performing suspension and ultimately
allowing you to corner faster, which is the bottom line.
Reduced flex:
The large 42mm damper rod and inverted design gives the
inverted damper units much greater strength and resistance to side
loadings. By reducing flex the RM inverted units lead to more consistent steering geometry resulting in more predictable and
responsive handling.
Corner weight adjustment:
The lower spring platform of the BC Racing coilovers are
adjustable. This allows the car to be set up for corner weighting to
achieve perfect balance and ensures that maximum tyre efficiency is
achieved.
Ride height is determined by the position of the coilover
bottom mount. The mount can be wound up and down the damper body to
give a full range of adjustment from near standard ride height to so
low it wouldn’t be drivable on the road. Because ride height is determined by an adjustable bottom
mount rather than spring platform you retain full damper travel
regardless of the ride height run.
Damping adjustment:
The RM Series coilovers feature 30 way damping adjustment that
combines both rebound and compression in one adjuster for simplicity
and ease of use.
Pillowball (rose joint) upper mount:
Many of the BC Racing RM coilovers come with pillowball upper
mounts. The pillowballs themselves are of Japanese manufacture and
their solid nature eliminates any flex or play associated with the
standard rubber mounts so improving response and handling.
If its possible to include camber adjustment on your vehicle
then the BC Racing coilovers automatically include camber adjustable
aluminium pillowball top mounts. These feature the same high quality
Japanese manufactured pillowball but give the added benefit of an
adjustable top mount that allows camber to be set to suit your needs be
it track or drift. * Street use has a limited warranty of 6 months due to harsh road conditions and build specifications to suit smooth tracks. (track use only - Limited warranty)
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| External Reservoir ER Series
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BC Racings premium flagship coilovers are the external reservoir ER
Series with separate compression and rebound damping adjustment. The
ER Series coilovers bring with them the high quality and unique
features seen on the BR and RM type but have the additional benefit of
external reservoirs and the ability to allow the end user to
individually adjust and set compression and rebound damping rates.
External reservoir
The external reservoir ER Series coilovers allow BC Racing to
increase the oil capacity of the damper unit. The additional oil
capacity reduces peak oil temperatures which decreases variations in
damping rates due to oil viscosity changes. The reduction in damping
rate variations improves handling and ultimate on road and track
performance.
Separate compression and rebound damping adjustment
By
separating the adjustment for damping compression and rebound the ER
Series allows you to dial the vehicle in to your exact needs. When
braking hard whilst approaching a corner you want the car to transfer
weight to the front tyres to maximise grip for the braking effort and
also to allow you to trail brake into the corner without the car
understeering.
As you start to lift off the brakes on corner entry you don’t
want the suspension to snap back up too quickly as this will remove the
loading from the front tyres too quickly and lead to understeer. As
soon as the car starts to understeer you need to wind off the steering
lock to reduce the work effort applied to the tyres to allow them to
regain traction. This slows the vehicles ultimate speed.
The compression damping adjustment allows you to fine tune the
way the car rolls onto its front tyres during braking and the separate
rebound adjustment allows you to fine tune the way the car responds as
you come off the brakes to enter the corner proper and keep the front
end hooked up. This allows you to get back on the power sooner and
maximise corner exit speed. Corner exit speed is vital because this
determines your maximum speed achieved down the next straight.
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Here is some of our commonly sought after models, if your car isn't listed below don't think that we won't be able to help you - BC Racing have an extensive range of coilovers for many makes and models. Please click on the file below for the complete range to find your car
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| For the added piece of mind, all BC Racing Coilovers come with a 12 month warranty. If you have any problems within this time, contact us immediately and we will happily resolve it for you. Warranty may be void if spring rates or other changes are made after purchase.
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Information and images sourced from www.bc-racing.com.au and www.justjap.com
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![Click to enlarge](javascript:imagePopup("images/bcsuspensionkit-01.jpg","bcsuspensionkit01jpg",520,399) "Click to enlarge")
![Click to enlarge](javascript:imagePopup("images/bcbrset.jpg","bcbrsetjpg",452,349) "Click to enlarge")
![Click to enlarge](javascript:imagePopup("images/bcrmset.jpg","bcrmsetjpg",520,399) "Click to enlarge")
![Click to enlarge](javascript:imagePopup("images/bcerset.jpg","bcersetjpg",520,399) "Click to enlarge")