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Special
features
of PONCAM
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■Valve
timing adjusted ■Easy
installation ■No
necessary to replace to
the high performance
valve spring ■The
new performance in all
stages ■Extra
ordinal acceleration
performance ■Stable
idle ■Use NVCS ■Great
with 'Drift run' ■Best
with bolt-on turbine |
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Valve
timing is opening and closing
timing of intake and exhaust
valve that are linking to the
piston movement, and
it is expressed with the
crankshaft angle from TDC or BDC
of the piston. When installing
new camshaft, idle stability or
low-mid range torque are
dramatically charged by 1°degree
of valve timing adjustment that
controls overlap or valve
closing timing. Valve timing is
usually adjusted by engine-tuner
who is working on with the test
driver. So as PONCAM, the best
duration timing and the valve
lifts are decided from torque
characteristic and acceleration
data that is based on huge
numbers of tests both on the
bench actual running.
Accordingly, dowel pin is
shifted to the proper position
at the same time.
You'll get the best valve timing
without any adjustment but just
a replacement of the factory
camshaft with PONCAM. |
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| ※Acceleration
G is calculated with
G-sensor that are
attached at front, rear,
left and right side of
the vehicle. As for the
reference, acceleration
G of Formula 1 car is
3G, and of fighter plane
is 6 to 7 G. |
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| Not
to mention that easy
installation of lash adjuster
type, also in the solid type of
RB26 engine, shim adjustment was
almost made unnecessary
according to the super-high
precision of the size of a cam
base circle. |
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No
necessary to replace to the high
performance valve spring |
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the profile design of a
camshaft, we succeeded in
reducing the burden to a valve
spring sharply by enlarging the
acceleration of opening valve,
while compressing the
acceleration of closing valve.
There is no necessity for
exchange of a valve spring, if
stock spring is in a usable
statement at the moment of cam
installation. |
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The
new performance in all stages |
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