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Camshaft
Synchronises valve timing to
control Negative Supercharging process and enhance
supercharging effect
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Stage 1- 6 uses the
same flat-tappet cam
Negative Supercharging flat-tappet cam features:
- Unique valve timing events that work together
in synch to control the negative supercharging
process and enhance the supercharging effect
- High lift intake profiles that allow more
air to be pulled into the engine by the
substantially reduced pressure in the cylinder
- Early closing intake profiles that trap
the larger volume of air in the cylinder
- Low lift early closing exhaust profiles
that allow the negative pressure in the
header to pull the intake charge into the
cylinder instead of into the exhaust system
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Stage 7 uses roller cam
Due to the high cost of roller cams, Stage 7 only
comes with a roller cam and lifters. The Negative
Supercharging roller cam features the same valve timing
events, synchronised valve timing and low exhaust
lift as the Negative Supercharging flat-tappet cam
but with much higher intake lift. Therefore, the roller
cam may be used with Stage 1-6, but the higher intake
lift of the roller cam requires .080" more piston
to valve clearance.
Negative Supercharging flat-tappet
or roller cam MUST be installed in a critical position
The Negative Supercharging camshaft can NOT be advanced
or retarded to optimise performance like conventional
cams.
For example,
- If the cam is advanced or retarded by more than
2° and no more than 6° from the optimum installed
position, the engine will progressively lose more
power the more the cam is advanced or retarded.
- If the cam is advanced by more than 6° from
the optimum installed position, the engine will
lose even more power.
- If the cam is retarded by more than 6° from
the optimum installed position, the engine will
lose all power.
| Impulse Engine Technology
P/L |
PO Box 986 Randwick NSW 2031 Australia
Ph: (02) 9398 5544
Fax: (02) 9398 5644
International: Ph: +(612) 9398 5544
Fax: +(612) 9398 5644
Email Us
Inventor of Negative Pressure Supercharging
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