Product Attribute:
Brand Name:Audi spark plug
Type:A4 Spark Plug 1.8L 92KW ENGINE
Function:Auto spark plug
Applicationt:
Europe, Asia, Japanese vehicles etc
Production Description:
Spark plug is a device in the engine of a motor vehicle, which produces electric sparks to make the petrol burn.The role of the spark plug ignition coil high-voltage pulses generated by the introduction of the combustion chamber, ignition spark generated by the electrode mixture, combustion is completed.
General information about Iridium spark plugs.
Iridium is an extremely hard metallic element, related to platinum, which is thought to occur on earth primarily due to an enormous meteor impact millions of years ago. Other than it's hardness, the main property which makes Iridium attractive as an electrode material for spark plugs is its extremely high melting point (almost 2,500 deg C).
Since late in the 20th century Iridium has been used in alloy form as material of choice for construction of Spark plug and industrial igniter electrodes. Pure Iridium is difficult to work with, very brittle and does not have great electrical conductivity hence alloys are used to give the best combination of these properties. An Iridium alloy electrode is able to deliver good conductivity and extreme hardness. The result is that an Iridium electrode can be manufactured with an extremely small diameter, when compared to a traditional copper or even a platinum tipped electrode, without compromising the useful life of the electrode or spark plug. The narrow diameter concentrates the electrical charge and therefore a much lower voltage is required to jump the spark gap. This is beneficial in several ways:
A lower voltage is required, this reduces load on a vehicle's ignition system (less strain = less chance of failure)
A larger gap can be supported without increasing load on the ignition system (Larger gap = larger spark = more efficient combustion)
A more precise spark every time, delivered in the correct position and with the correct timing (More efficient combustion)
Assuming a suitable Iridium plug is available, benefits you are most likely to see are:
Improved throttle response
Improved economy (though this depends largely on how much you enjoy the improved throttle response!)
Increased plug service life (Depending on design, an Iridium plug could last up to ten times the life of a standard plug with little reduction in efficiency over the plug's lifespan)
Increased engine power (Don't expect to double your horsepower but a 1 - 3% increase is possible)
Improved (reduced) emissions.
Will an Iridium spark plug be beneficial for my particular engine?
This is very subjective. The vast majority of vehicles/engines will benefit from replacing a standard spark plug with an Iridium spark plug. Most benefit will result if:
There is a very close Iridium spark plug match for your standard spark plug (i.e. overall design is very similar)
The standard spark plug you are replacing is a basic copper plug (the Iridium plug will then be a more significant upgrade)
The engine has a large cylinder capacity and a large number of cylinders
Least benefit will be realized if:
There is no close match for your standard spark plug, it isn't worth compromising plug design purely to use an Iridium plug type.
The standard plugs are already a performance or enhanced design. Some standard (Original Equipment) plugs are Iridium or fine wire platinum types, these may already provide the ultimate performance and service life for your particular engine. Fitting an aftermarket Iridium plug may actually result in a drop in performance and service life.
Denso Iridium Power Plugs
This is Denso's 'basic' performance Iridium spark plug range. Tried and trusted by performance enthusiasts worldwide. A traditional ground electrode is teamed with Denso's ultra fine 0.4mm Iridium alloy centre electrode to provide excellent performance. Service life for normally aspirated engines can be up to 30,000 miles but we would expect plugs to be past their best by this time, 20,000 miles is a more practical target and replacing after a shorter interval may provide greater savings in fuel economy.
There are a wide variety of designs and heat ranges from 14 (very warm) to 34 (extremely cold) in some designs. We keep the vast majority of designs and heat ranges in stock.
DENSO IRIDIUM TOUGH features :
Ø Denso Iridium Power global performances.
Ø 0.4mm diameter Iridium Center electrode.
Ø Platinum chip on ground electrode.
Ø Last 100 000km (5 times the classic spark plugs on normal use).
Ø Less fuel consumption (Up to 5%).
Ø Better acceleration / More stability from ignition.
Ø More reaction from the engine.
Ø Cleaner combustion / Less unburned fuel.
Ø Optimized compressions.
Ø Horsepower slightly increased.
DENSO IRIDIUM POWER advantages :
- Reduce fuel consumption.
- More Horsepower.
- Higher Compressions.
- Better combustion / Less unburned fuel.
- More stability at idle / Less vibrations.
- Easier cold start.
- Better accelerations.
- 2 to 3 times more lifetime than classic spark plugs.
- Patented DENSO U-Groove system.
- Better resistance to high temperatures and corrosion.
- Slightly better performances than 0.6mm diameter Iridium spark plugs (NGK / OWS / OBX / Champion).