15-10-2016, 03:59 PM
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HOW IT WORKS
What is NPS?
What is NPS about?
How NPS works compared to standard and race engines
Operating Principles of NPS
Basic description of parts and processes that work together to produce NPS
Combination of parts and processes that work together to produce NPS
HTCSI combustion compared to HCCI combustion
Working prototype engines
Negative pressure produces the SAME force as positive pressure
Vacuum or boost is the result of high pressure forcing itself into low pressure environment
How internal combustion engines and superchargers actually work
What is Negative Pressure Supercharging about?
Negative Pressure Supercharging is about making mechanically simple carbureted or fuel injected street engines produce...
•
More torque and horsepower from idle to 4500 rpm using low octane fuel
•
Faster acceleration
•
More towing power
•
More fuel economy
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Lower emissions
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Lower maintenance
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Lower running costs
...than today's mechanically complex high rpm wonder engines.
For more details see What is NPS? and Performance Improvements
Negative Pressure Supercharging is NOT about...
• making street engines rev higher to produce more peak horsepower
• using supercharger air pumps to produce more peak horsepower
• making street engines more mechanically complex
Negative Pressure Supercharging is NOT about making street engines rev higher to produce more peak horsepower because the drawback with high rpm engines is they...
• DO NOT produce the wide range of performance improvements produced by Negative Pressure Supercharging
• Cost more than Negative Pressure Supercharging
• Reduce driveability, towing power, fuel economy, idle quality and manifold vacuum
• Produce poor low rpm torque which produces poor low speed acceleration
• Increase emissions, maintenance and running costs
• Must use high octane fuel or expensive high octane fuel additives
• Must use many expensive and heavy duty parts to handle the higher horsepower
• Must use race parts or mechanically complex systems to produce respectable low speed acceleration such as...
• 4-6 speed transmissions
• 4-5:1 diff ratios
• 4000-5000 rpm high stall converters
• Long intake manifolds
• Variable intake manifolds
• Roller cams
• Variable valve timing
• Variable valve lift
• Must use expensive pollution control systems to reduce the much higher emissions they produce such as...
• Catalytic converters
• Exhaust gas recirculation
• Vacuum (smog) pumps
• Secondary air injection
• Computers
• Fuel injection
Negative Pressure Supercharging is NOT about using supercharger air pumps to produce more peak horsepower because the drawback with air pumps for street applications is they...
• DO NOT produce the wide range of performance improvements produced by Negative Pressure Supercharging
• Cost 3 times more than Negative Pressure Supercharging
• Reduce fuel economy
• Increase emissions, maintenance and running costs
• Require the engine to use high octane fuel or expensive high octane fuel additives
• Require the engine to use many expensive and heavy duty parts to handle the higher horsepower
• Require the engine to use expensive pollution control systems to reduce the much higher emissions they produce such as...
• Catalytic converters
• Exhaust gas recirculation
• Vacuum (smog) pumps
• Secondary air injection
• Computers
• Fuel injection
Negative Pressure Supercharging is NOT about making street engines more mechanically complex because the drawback with mechanically complex systems* is they...
• DO NOT produce the wide range of performance improvements produced by Negative Pressure Supercharging
• Cost 2 times more than Negative Pressure Supercharging
• Produce only small improvements in power, fuel economy or emissions with each system which require making engines more and more mechanically comple