Here is a new product that we are carrying now . Well will be selling them for $275 for all NASIOC members With FREE SHIPPING in the continental US . Here is a little run down from NGKs site .............
NGK Spark Plugs is introducing its new Powerdex AFX Wideband Air-Fuel Ratio Monitor for the performance aftermarket. This product meets the increasing demand in the market for precision air-fuel ratio monitoring tools.
Traditionally these types of tools commanded price tags that could only be justified by professional race teams and engine specialists. As technology advanced, many low-cost air-fuel ratio products emerged. Some used actual wideband sensors while others simply read OE style narrowband oxygen sensor signals and attempted to convert them to linear readouts….often with marginal success.
With the AFX, NGK now offers the most affordable wideband system to date. A flexible and rugged system complete with everything needed to get you tuning. The kit comes with a digital display control module, 13’ wiring harness, wideband air-fuel ratio sensor, exhaust boss and plug, and a comprehensive tuning manual. The tuning manual includes installation instructions and contains a detailed guide to performance air-fuel ratio tuning.
The AFX measures and displays air-fuel ratio (AFR) from 9.00 to 16.00. It demonstrates superb response and accuracy within 0.1 AFR. The air-fuel ratio information can then be utilized by the user to make fuel delivery adjustments to the vehicle’s carburetor, mechanical fuel injection, or programmable electronic fuel injection system. The desired air-fuel ratio can be achieved depending on the performance requirements of the engine or race application. This is an exceptionally useful tool for carbureted engines, where there is a lot of freedom in tuning as well as a great need for proper adjustment.
Powerdex AFX Air-Fuel Ratio Monitor
Q: There are many wideband systems on the market today. What makes NGK’s better than the competitors’?
A: NGK has long been the world leader in exhaust gas sensor technology with its NTK brand oxygen sensors. Who better to create a wideband controller than the company who is the authority on wideband sensors? The benefit of the AFX comes from the many years and millions of dollars of NGK sensor research and development. Our system utilizes that technology. Don't be misled by competitors' claims of knowing the ins and outs of wideband sensor technology, or even some who simply manipulate narrow band sensor signals and call that air-fuel ratio monitoring. The AFX is a true wideband system that is rugged, versatile, and simple to use. It eliminates the guesswork from carburetor and fuel injection tuning and can save you valuable time and money. The AFX is an affordable, easy to use system that is packed with years of NGK sensor technology.
Q: What is included in the kit?
A: The AFX comes with everything you need to start tuning:
Digital display controller
13’ wiring harness
Exhaust boss & plug
Comprehensive air-fuel ratio tuning manual
Q: What is the range of measurement for the AFX?
A: The AFX has a range of measurement of 9.00:1 to 16.00:1 for gasoline. It is a precision tool that is accurate within 0.1 AFR.
Q: Does the AFX have an analog output?
A: Yes, t he AFX has a 0 ~ 5V, linear analog output for AFR that can be used as an input to an engine controller or data acquisition system. The analog output signal wire is yellow and is attached to terminal position 3 of the connector that plugs into the controller. The analog output ground wire is brown and is attached to terminal position 4 of the same connector. The output wires are each 12" long and are hidden inside the mesh sleeve. To access the wires, gently pull them out of the sleeve. An output of 0V means 9.00:1 AFR and an output of 5V means 16.00:1 AFR. When the sensor is in air, the analog output will be pinned at 5V (since the AFR of air is infinity).
Mathematically: AFR = 1.4 x Vout + 9 .0
Q: Is the AFX compatible with leaded fuel?
A: Yes. The AFX welcomes tuning using leaded race fuels. Note however that the sensor deteriorates faster with leaded fuels than with unleaded fuels. The AFX's proprietary calibration procedure helps extend the sensor's usable life and maintains accuracy throughout that lifetime.
Q: How long of a life can I expect from the sensor?
A: The AFX has been designed to extend the AFR sensor’s life as long as possible. However, since sensor life depends on sensor operating conditions, it impossible to predict sensor life without knowing the conditions under which the AFR sensor was used. Therefore, the AFR sensor should be considered an expendable part; a cost of tuning, just like gasoline and your time. Some tuners will never kill a sensor. Some tuners will kill two sensors a race season. You may use the AFX as a constant AFR monitoring tool, but keep in mind that this will consume the sensor faster. If you are not using the sensor to tune the engine, we generally recommend you take it out. It may be a good idea to keep a backup sensor on hand if you tune constantly or if you tune at the track.
Q: Is the AFX compatible with fuels other than gasoline?
A: Yes. The AFX will work with commonly used race fuels like methanol. The display will simply show AFR on a gasoline scale (using 14.57:1 as stoichiometry) even though the fuel used may have different properties (stoichiometry for methanol is approximately 6.5:1). As long as you understand this, interpreting the values should be easy. Also keep in mind that the properties of methanol may make it easier for thermal shock to occur to the sensor, possibly shortening its life. Please use care when deciding sensor mounting location.
Q: What is the warranty on the AFX?
A: NGK Spark Plugs (U.S.A.), Inc. warrants that the products, which it sells to the Distributor, seller, reseller, or customer, shall be free from defects in workmanship and materials within a period of sixty (60) days from the delivery thereof to the aforementioned parties. This does not apply to products that have been modified, altered, abused, damaged during transit, or subjected to conditions in excess of their intended environment. Due to the nature of the product, there is no warranty on AFR sensor life.
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