Home » Brand Line Card » Sniper Deltaforce
Regardless of what some people may claim, it is
impossible to properly tune a fuel injection system on a modified engine
without some means of exhaust gas analysis. Sniper offers the
AF-5000 as a low cost alternative to expensive systems.
Conventional (narrow-band) exhaust gas oxygen
sensors have been widely used in automotive applications since 1981.
Conventional sensors have one to four wires and can only sense air/fuel
ratio over a relatively narrow 14.5 to 15.0 range. They are intended to be
used with 3-way catalytic converters that require operation near the
stoichiometric* point (14.7 air/fuel ratio). The range of narrow-band
sensors is inadequate for performance tuning. While originally developed
for lab and specialized automotive applications, wide-band sensors are
ideal for tuning. The 5-wire Bosch LSU 4.2 sensor used with the
AF-5000 operates over a range of 10.3 to infinite air/fuel ratio.
The AF-5000 features built-in data logging. This data logging capability
greatly facilitates engine tuning and diagnosis of driveability issues.
The AF-5000 can store data up to 2 hours of operation. You can use our
WEGO Log software to download and display this data on a chart
recorder type screen.
Available data includes:
1) AFR (air/fuel ratio)
3) 0-5V analog.
Sniper AF-5000 AFR features include:
air/fuel ratio metering system with built-in data logging. Includes
WEGO II Wide-Band Exhaust Gas Oxygen Sensor Interface, Bosch LSU4.2
5-wire wide-band oxygen sensor, 18x1.5mm weld nut for mounting sensor on
exhaust pipe, and software on CDROM
tuning aid for all carbureted and fuel injected engines displays AFR
(air/fuel ratio) and logs over 2 hours data including AFR, engine RPM,
and a spare 0-5V analog input for sensors such as throttle position or
Can be used
for on-road or dyno testing.
automotive, motorcycle, and other small engine applications.
accurate with less than ï¿½0.10 AFR error over 10.3 - 19.5 AFR range.
free-air calibration procedure corrects for sensor aging effects.
display with backlight provides great readability in all conditions
ranging from bright sunlight to total darkness.
size: 3.7"L x 1.7"W x 0.75"H.
* Stoichiometric Ratio- The
ratio at which all available fuel is combined with oxygen during the
combustion process. This theoretically ideal ratio produces minimum
emissions, however maximum power is achieved at an AFR 10-15% richer than
stoichiometric, while maximum efficiency is achieved at an AFR 3-5% leaner
than stoichiometric (depending on many engine variables).
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