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ENGINE INTERNALS
VCM Performance is
in an expansion phase and plans on offering an exciting new
range of internal engine components in the near future. Even
if you don’t think we have a product, call to check.
Timing Chains
Rollmaster Timing
Chain Sets
Competitively priced double row timing chains sets to suit
LS1, LS2 and LS3.
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Valve Springs
VCM Performance proudly offers PAC Racing Spring upgrades
for all LS1, LS2, L76, L98, LS3 and LS7 engine
configurations.
PAC is a premier North American valve spring manufacturer
supplying product for use in all forms of motorsport
including NASCAR, Le Mans, Drag Racing, Marine, Motorcycle,
etc; the company kicking off product development using
cutting edge technology in material and processing which has
ensured their springs excel in all forms of racing. From PAC
proprietary alloy PAC alloy, to PAC-enhanced processing to
continued development of further materials and processing,
PAC racing springs provide a competitive edge in everything
from street to the racing arena.
PAC Racing’s attention to detail with spring design and
manufacture is second to none for all applications from
15,000rpm motorcycle engines, to 10,000rpm NASCAR combos all
the way down to 7500rpm LS1s.
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Performance Camshafts
A camshaft upgrade is one of best Bang for your Buck
upgrades available for the LS Commodore range, and we are
both passionate and excited about being able to offer
Commodore owners and tuners alike, tested and proven cam
grinds designed to meet most needs.
This said we no not offer any radical ramp rate camshafts
due to an inherent design that literally smashes valves
trains over time. It is our preference that we only offer
camshafts that deliver the best possible performance,
without and bad side effects including poor idle and vastly
increased wear rates.
For example, we do not believe that an extra 10 kilowatts in
the top end is worth the cost of regular valve train
rebuilds.
VCM Performance has and continues to undertake a rigorous
development program with a camshaft range to suit the entire
LS engine range. With significant input achieved by using
our own development mules (includes a VE SS sedan, VE
Calais, supercharged 408 powered CV8 Monaro and ‘bolt-on’
GTO) we have been able to design camshafts that – in a word
– work!
Over the past couple of years VCM Performance has supplied
hundreds of camshafts and valve spring packages for
applications ranging from mild 270 rwkW 5.7’s, all the way
to twin turbocharged large cube strokers developing in
excess of 820 kilowatts (1100hp).
Reliability, repeatability, longevity and accuracy are
paramount with valve train design and manufacture, and it is
here that VCM Performance takes no chances. Cam and spring
failures simply do not occur.
CAM SPECS
Note:
New cam profiles are added on a regular basis. Please
contact us if you have a specific requirement.
VCM 300KW RPM
RANGE 1500-6400
Stock replacement factory 300KW camshaft.
VCM9
High lift short duration cam. Great mid range and superior
top end power. Requires valve spring upgrade.
VCM2 RPM
RANGE 2000-6500
Great all round performance. Strong torque through rev
range. Likes higher rocker ratio.
VCM10 RPM
RANGE 2000-6700
Performance street use. Very strong-mid range & top end
power. Requires valve spring upgrade.
VCM11 RPM
RANGE 2200-6800
Split duration cam for performance street use. Strong mid
range & high RPM power. Requires valve spring upgrade.
VCM12 RPM
RANGE 2200-6800
Performance street/strip use. Aggressive lobe design
delivers very strong-mid range & top end power. Requires
valve spring upgrade.
VCM3 RPM
RANGE 2500-6800
Split duration cam for performance street use. Strong mid
range & high RPM power. Requires valve spring upgrade.
VCM7 RPM
RANGE 2500-7000
Tough street strip cam. Strong upper mid range & top end
power. Requires min 3.9:1 diff ratio & valve spring upgrade.
VCM13 RPM
RANGE 3000-7200
Strong street strip cam. Suit modified engines with
increased comp ratio. Must use ovate wire double valve
springs for maximum results.
TURBO, BLOWER & NITROUS
VCM15 RPM
RANGE 1800-6800+
High lift short duration intake lobe design delivers very
strong bottom end, mid range & top end power. Requires valve
spring upgrade.
VCM5 SC RPM
RANGE 2200-7000+
Performance street use. Very strong mid range and high end
performance improvement. Requires valve spring upgrade.
VCM5 RPM
RANGE 2400-7000+
Street / strip use. Strong mid range & top end power.
Requires valve spring upgrade.
VCM16 RPM
RANGE 2600-7200+
Street / strip use. Strong upper mid range & top end power.
Must use ovate wire double valve springs.
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