Home' Australian Automotive Aftermarket Magazine : Australian Automotive Aftermarket E-zine - Annual Performance Guide Contents 52 AUTOMOTIVE AFTERMARKET MAGAZINE PERFORMANCE GUIDE 2013
ZDDP oil additive
available at Kwinana
Western Australian performance shop Kwinana
Performance stocks the new Crow Cams Dura
Cam ZDDP oil additive.
The reduction of zinc and phosphate
additives in passenger car oils and its impact on
the premature wear of cams and lifters have
been well documented in recent years.
A number of products are on the market from
complete fill 'break in' and racing oils to
additives with various levels of zinc phosphate
content with some products priced out of many
Working with oil additive manufacturers,
Crow researched the optimum level of ZDDP for
maximum resistance to scuffing and oil film
break down under the extreme loads of high
performance flat tappet engines in road and race
The new Dura Cam ZDDP Ultra Concentrate
is designed as a one shot oil additive with the
100ml bottle bringing zinc phosphate levels on
five to six litres of engine oil into the maximum
recommended parts per million range.
Priced under $18 a bottle, Dura Cam is great
insurance for any high performance road or race
flat tappet engine.
Kwinana Performance, located at 10
Arkwright Road in Rockingham, is also an
authorised stockist and installer of Aeroflow
The Aeroflow range includes braided hoses,
hose ends and finishers, fittings and adaptors,
fuel systems and engine accessories.
For more information call Kwinana
Performance on 08 9529 3636 or visit
Dual mass flywheels - advocating for better
driveline technology training
Market leader Australian Clutch Services has long been an advocate of industry guided product
While Dual Mass Flywheel (DMF) technology
is certainly nothing new, according to ACS the
accurate assessment of worn or damaged DMFs
has been notably lacking across the clutch
Inaccurate evaluation and misinformation
regarding DMFs has been a source of mistrust
between the repairer and the consumer.
To combat this ACS recommends that all DMF
equipped vehicles are properly assessed at every
clutch replacement, a recommendation that is
backed by the respective dual mass flywheel OE
At the most basic level, a DMF is simply a
driveline dampener, not dissimilar to the one you
would find in a normal clutch disc.
OE manufacturers developed the DMF because a
dampener located in the flywheel allows for a much
wider range of motion than a conventional clutch disc
dampener can, so driveline development engineers
can more accurately control noise, vibration and
Because a DMF performs the work previously
undertaken solely by the clutch disc, it is a wearing
part that should be properly assessed at every gearbox
R&R and replaced as necessary; the ideal time is in conjunction with a new clutch kit.
In the recent past, dual mass flywheels were often spoken about in hushed tones.
It was an expensive and misunderstood product, the domain of luxury and high end European
This is no longer the case and over the last decade, DMFs have entered Australia's mainstream
Stewart Furze, ACS' mechanical engineer in charge of product development, said many vehicle
manufacturers targeting cost consolidation are now using the term 'global platform'.
"The global statistic for us to consider is that up to 70 percent of new vehicles are now equipped
with a DMF," he said.
"Not only is the technology widespread, it has also matured over several decades in both design
"Retaining or replacing the worn component with a new, OE manufactured dual mass flywheel
is still the primary choice for the majority of vehicle owners."
ACS stocks tools for correct assessment and safe fitment of Dual Mass Flywheels and Self
Adjusting Clutches (SACs), and has continued to embrace the latest updates to clutch and flywheel
technology by encouraging the widespread use of these tools.
DMFs can be assessed quickly while they are still mounted to the engine, using the '30 + 2' rule.
If the DMF exceeds 30mm of rotational movement, or 2mm of lateral movement (rock on the
crank), further checking must be done to determine if the flywheel should be replaced.
Many workshops now employ this simple rule of thumb before resorting to the tool for more
accurate assessment if required.
The OE manufacturer developed test tools are available for sale to dealers, European vehicle
specialists and driveline workshops.
ACS also stocks a range of Single Mass Flywheel (SMF) conversion kits developed for specialist
and performance applications where it may not always be appropriate to retain a DMF.
Australian Clutch Services has specialist technical sales staff on hand to discuss the specific
requirements of customer vehicles, to ensure the end user receives the product appropriate to their
vehicle and usage.
For more information visit www.australianclutch.com.au or call 1800 CLUTCH (1800 258 824).
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