Ballenger AFR500 – Air Fuel Ratio Monitor Kit with Production Grade NTK Sensor
The Ballenger Motorsports AFR500 makes wideband O2 measurement with top-of-the-line equipment available to enthusiasts and tuners for the first time. Air fuel ratio offers important feedback for tuners to finetune parameters to achieve maximum power and efficiency from their engine.
The AFR500 Air Fuel Ratio Monitor offers a range of true wideband sensors from low cost options to lab grade sensors. The AFR500 is capable of reading air fuel ratio values from 9.0:1 to 16.0:1 (0.62-1.1λ) for standard range or 6.0:1 to 20.0:1 (0.411-1.373λ) for wide range with a resolution of 0.1 to provide excellent resolution in the tuning range of most performance vehicles. The Ballenger Motorsports AFR500 utilizes sensitive Nernst style, pump & reference cell based sensors that can detect a wide range of oxygen concentrations in order to properly interpret air fuel ratio in a variety of combustion environments.
The Ballenger Motorsports AFR500 offers a linear analog output to be used as an input to engine control systems, gauges or data acquisition systems. The output varies from 9:1 at 0v to 16:1 at 5v for the standard range or 6:1 at 0v to 20:1 at 5v for the wide range.
The AFR500 Kit includes:
- Large, bright digital display controller (~3.4in x 2.7in x 1.3in)
- 13 ft or 7ft wiring harness with sealed connections
- Bosch LSU 4.9 wideband oxygen sensor (NTK Sensor options available, as well as the Bosch 4.2)
- Weld in steel exhaust boss & plug
- Mounting Velcro
- Comprehensive Installation, troubleshooting & tuning manual
- 0-5 volt Analog Output Signal
- 11-28 volt Input Power (24v system capable)
- Compatibility with most aftermarket ECUs
- Compatibility with popular tuning systems like HPTuners & SCT
- NTK production grade sensor
- Gasoline / Petrol (leaded or unleaded)
- Alcohol (Methanol)
- Ethanol (E100, E85, E20, E15, E10, etc)
- Flex Fuels
- Compressed Natural Gas (CNG)
- Liquefied Petroleum Gas (LPG)
- Many other combustible fuels
Where should my wideband oxygen sensor be installed for best performance?
If you’re using a sniffer and going to put the wideband sensor in one of the tailpipes, use an inner one with the exhaust valves open. You can also install your wideband in place of one of the rear narrow band sensors if you are running catless downpipes and already have the related rear oxygen sensor DTCs disabled in your tune. The best solution of all is to have an exhaust shop weld an additional bung (included) in place for the wideband.