Passenger
Cars - Daily Drivers
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Passenger
Cars - Daily Drivers |
THE BENEFITS OF EVANS NPG+ COOLANT FOR PASSENGER CAR ENGINES
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INCREASES POWER | |
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PROTECTS FROM BOIL-OVER | |
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IMPROVES FUEL ECONOMY | |
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DOES NOT DEVELOP HIGH PRESSURE | |
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ELIMINATES SYSTEM SCALING | |
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ELIMINATES CORROSION | |
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REDUCES DETONATION | |
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ELIMINATES PUMP CAVITATION | |
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REDUCES EMISSIONS | |
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LENGTHENS LIFE OF ENGINE | |
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EXTENDS RADIATOR LIFE | |
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LIFE OF ENGINE COOLANT - 500,000 MILES | |
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LENGTHENS LIFE OF COOLANT PUMP | |
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PROLONGS HOSE LIFE | |
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LOWERS MAINTENANCE COST | |
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LESS ENGINE NOISE | |
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REDUCED TOXICITY |
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REDUCES WARRANTY COSTS | |
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OFFERS THERMAL MANAGEMENT FLEXIBILITY | |
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MAKES POSSIBLE SMALLER, LIGHTER ENGINES | |
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PERMITS USE MAGNESIUM ENGINES | |
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OFFERS POSSIBILITY OF SMALLER RADIATOR OPENINGS | |
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ALLOWS ALTERNATE LOCATIONS FOR RADIATOR | |
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ENABLES CHOICES FOR FRONT-END PACKAGING |
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EVANS NPG+™ COOLING is a new technology, a system initially developed for cooling race engines to reliably increase power. It does that and much more. It's a racing-tested engine cooling breakthrough! The technology is centered on a revolutionary non-water-based coolant. In addition to our own race teams and testing programs, EVANS waterless coolant technology has been proven in many different racing vehicles, street machines, and trucks. EVANS NPG+ is used in 2000 HP drag cars, cross country vintage racers big block modified cars. EVANS NPG+ has solved cooling problems in all makes of motorcycles including exotic high horsepower racing bikes to 1500cc, 6 cylinder touring bikes. NPG+ is just as beneficial to street machines of all types as it is to these high performance applications. It was through this rigorous testing and racing that we realized the enormous potential to solve the many "common" issues experienced with automobiles of all makes.
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EVANS
NPG+™ Coolant Ends Coolant Maintenance & Expense - Run
Longer - Run Safer - Never Overheat! |
Engines have the capacity of operating at much higher efficiencies, leading to greater power production. Limits on engines are imposed by water-based coolants because the boiling point is too low. Low boiling point coolants all-too-easily produce vapor in the cooling system. There is localized boiling of coolant that produces water vapor that cannot condense. When there is vapor in the coolant jacket, there is an interruption of the heat transfer. The vapor blankets hot spots, reducing heat transfer and causing the temperature at those locations to spike, resulting in destructive detonation and pre-ignition. In most applications, EVANS NPG+ coolant alone will improve fuel economy and reduce emissions by keeping metal temperatures under control. The non-failure operating temperature range of an engine using EVANS NPG+ is broadened, virtually adding a reserve cooling system capacity that is not available with water-based coolants.
Water-based coolants lose their ability to absorb heat from hot spots in the combustion chambers when water vapor is present that blankets the surface, leading to high metal temperature spikes well above critical levels. The result is loss of power from detonation or component structural failure from pre-ignition in the form of piston damage, head gasket failure, and/or warped or cracked heads.
Water-based coolant is operated near its boiling point. Cylinder liner cavitation erosion is caused by vibration-induced high frequency pressure changes at the metal-coolant interface. Coolant, near its boiling point, makes vapor bubbles that abruptly collapse against the metal surface, causing erosion of the metal. As EVANS NPG+ Coolant contains no water and is not operated near its boiling point, cavitation erosion is prevented.
The boiling point of EVANS NPG+ Coolant is 375 degrees F. The coolant is normally controlled at conventional temperatures but functions perfectly well at higher temperatures, even at temperatures considerably higher than the boiling point of conventional coolants. Detonation and pre-ignition are kept under control by better control of metal temperatures at hot locations. Consequently, engines cooled with NPG+ are less likely to pre-ignite or detonate and may be adjusted for improved efficiency and power. Engines controlled by knock sensors (as is common) will automatically respond to the absence of knock and operate with greater efficiency and durability.
EVANS
NPG+ ™ COOLANT
USES NO WATER AND DOES NOT BECOME PRESSURIZED BY VAPOR!
EVANS NPG+ Coolant is a blend of glycols with particular additives that do not require water to remain in solution. As it remains substantially vapor free in the coolant jacket, liquid-to-metal contact is maintained regardless of coolant temperature or engine load. By bathing the entire coolant jacket with vapor-less coolant 100% of the time, metal temperatures are controlled to such an extent that critical levels of detonation and pre-ignition are never reached. Because EVANS NPG+ boils at 375 degrees F, the need for high pressure in the cooling system is eliminated. The only pressure generated in an NPG+ cooling system is due to the expansion of liquid, never by the formation of vapor. Consequently the build-up of pressure in a system using NPG+ is typically in the range of just 2 to 7 psig and gasket seals, hose connections, and even the radiator core, are under less stress and operate safer and longer.
This is a simple outline of a few general cooling system benefits / engine enhancements that our systems can provide. For a more detailed and specific outline of our system along with the increases in cooling system / engine performance you can expect to gain, please read the data in our technical info pages. For more benefits and descriptions see our benefits pages.
For competition engines that are pushed to excess - into extremes, Evans has a wide range of NPG+ optimized components from high flow coolant pumps to NPG+ enhanced radiators. For maximum engine performance and protection under these excessive conditions, no other existing cooling system will operate with greater efficiency or provide greater engine protection! Most of our NPG+ optimized components can be viewed in our catalog page.
For an in-depth discussion of the problems with current cooling systems and how Evans NPG solves these issues, please read our narrative in the NPG benefits page.
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