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44 Results Found For "ratio"
Showing In Stock Items. Show All 57 Items.
Innovate Air/Fuel Ratio Monitor Accessories
These accessories from Innovate are designed to work with your Innovate air/fuel ratio monitor. They are perfect for upgrading your current monitor or for replacing worn-out components.
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$76.99
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$96.99
Denso Air/Fuel Ratio Sensors
Denso air/fuel ratio sensors (A/F sensors) were developed to measure air-to-fuel ratios under a wider range of driving conditions than oxygen sensors. A/F sensors, also known as wide-band oxygen sensors, send information to the engine management computer to make adjustments based on driving conditions. Their wider range and variable adjustments allow engines to burn fuel more efficiently and produce fewer emissions. As A/F sensor technology has evolved, Denso has been there every step of the way. From the first thimble-type sensors to today's heated, quick-response sensors required to meet ever more stringent emissions regulations, Denso has supplied OEMs with quality components and continues to innovate. Denso helped to develop this important technology and you can rely on Denso First Time Fit A/F sensors. Features and benefits of Denso air/fuel ratio sensors include: * Tarnish-proof platinum electrode provides longer life and maintains accuracy * Quick-response planar zirconia element quickly detects oxygen concentration * Measures air/fuel ratios from approximately 12:1 to 19:1 * Increased performance by mapping air/fuel ratios throughout the RPM range * Lower emissions by optimizing the air/fuel mixture * Reduces fuel consumption and maximizes catalytic converter life * First Time Fit design delivers the right part the first time
( 23 )
$53.99
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$96.99
DIYAutoTune Smart Coils
DIYAutoTune Smart Coils by AMP EFI produce CDI-level spark energy--without a CD ignition module. They're manufactured with a 19 amp IGBT ignitor built in and can be driven with a 5 V logic level output. Normally, you would use Smart Coils for distributor-less ignitions, such as a coil-per-plug application; however they can be fired sequentially or every crank revolution (wasted spark coil per plug). Smart Coil specs: * Minimum voltage output (no load, at recommended dwell): 40,000 V * Output energy: 103 mJ * Spark duration: 2.9 ms * Primary resistance: 0.5 ohms (not directly measurable) * Primary inductance: 4.8 mH (not directly measurable) * Secondary resistance: 8,500 ohms * Secondary inductance: 22.5 H * Turns ratio: 71.1 * Maximum current: 19 amps * Maximum battery voltage: 17 V * Nominal dwell: 3.0 ms * Maximum recommended duty cycle is 40 percent * Requires HEI-type plug wire ends/boots
( 4 )
$71.00
Allstar Performance High Output Coils
Amp up the spark in your race car with these Allstar Performance high output coils. These ignition coils are designed to from the ground up to give you more spark and better reliability, even under racing conditions. Their sturdy housing is epoxy-filled to help protect against vibration, while their extruded aluminum bracket makes mounting easy. These Allstar Performance high output coils come ready to go with all of the mounting hardware, anti-vibration mounting pads, ring terminals, and a high-temperature silicone boot, so you can get your ride up and running and back on the track.
( 1 )
$52.99
Edelbrock Max-Fire Coil On Plug Ignition Coils
Edelbrock Max-Fire Coil On Plug ignition coils are designed with higher resistance for increased energy output at higher rpm, when compared to an OEM coil. They're ideal for use with turbocharged and supercharged applications or engines that have been converted to E85 fuel. The coils are sealed with a high temperature epoxy for shock and vibration resistance—as well as excellent thermal conductivity. The spark plug spring contact is made from stainless steel, with a ferrite lug to reduce EMI/RFI noise; while the boots are molded from a high temperature silicone compound for superior heat resistance up to 550 degrees F. Order the direct bolt-on OEM coil pack recommended for your vehicle.
( 5 )
$53.95
ACDelco GM Genuine Parts Flex Fuel Sensors
ACDelco GM Genuine Parts flex fuel sensors will tell you the composition of your fuel. How much ethanol is in your system? Well, you're about to find out. These sensors measure the ethanol/gasoline ratio of the fuel being used—and then send a signal to your ECM so adjustments can be made for optimum operation of your flexible fuel vehicle. Allow GM Genuine Parts flex fuel sensors to provide the right answers for you to regain reliable, efficient performance.
( 8 )
$70.99
Innovate Oxygen Sensors
Are you running rich or lean? Innovate oxygen sensors will monitor and tell you just what the facts are. These precision sensors collect and feed the data you need to aid in restoring accurate gauging your fuel mixture. They offer replacement Bosch LSU 4.2 and 4.9 sensors for their digital A/F ratio meter and digital wideband gauges. Plus, Innovate wideband systems allow the sensor to be recalibrated for the ultimate in accuracy, maximum performance, and safety!
( 25 )
$89.99
On Sale
MSD Blaster GM Coils
MSD Blaster coils give your GM maximum voltage output! With windings and construction similar to MSD's Blaster 2 coils, these have an increased turns ratio, plus lower primary resistance than your stock coils. The Blasters will work with stock GM coil ignition systems, as well as MSD-equipped cars and trucks. Looking to get a little more output voltage from your GM ignition system? Just bolt in one of these MSD Blaster Coils.
( 88 )
$80.09
$72.08
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$80.55
On Sale
MSD Blaster TFI Coils
MSD Blaster TFI coils powers up your Ford ignition system. With windings and construction similar to MSD's Blaster 2 coils, these coils have an increased turns ratio, plus lower primary resistance than your stock coil. MSD Blaster TFI coils will work with stock TFI ignition systems as well as MSD-equipped cars and trucks. Looking to get a little more output voltage from your Ford ignition system? Just bolt in one of these MSD Blaster TFI coils.
( 144 )
$80.09
$72.08
Summit Racing™ OEM GM Flex Fuel Sensor
Summit Racing™ offers OEM GM flex fuel sensors for a wide range of applications, including many Chevrolet, GMC, Buick, and Cadillac models from 2011 and up. These replacement sensors measure the ethanol/gasoline ratio of the fuel being used—and then send a signal to your ECM so adjustments can be made for optimum operation of your flexible fuel vehicle. The sensors are made from factory materials and specs to ensure proper fit and performance. Ensure the fuel system efficiency you expect; order the model recommended for your vehicle.
Not Yet Reviewed
$79.99
ACDelco GM Genuine Parts Oxygen Sensors
ACDelco GM Genuine Parts oxygen (O2) sensors are special feedback sensors on your vehicle's exhaust system and are GM-recommended replacements for your vehicle's original components. They measure the proportion of oxygen in exhaust gases, then using the measurement, the engine control module (ECM) can adjust the air/fuel ratio to near the optimal value of 14.7:1. At this ratio, engine performance, emissions, and fuel economy are all optimized. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Choose the O2 sensor designed for your vehicle.
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$50.99
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$97.99
FuelTech WB-O2 Sensors
Designed for use with their WB-O2 Nano, Alcohol O2, WB-O2 Datalogger, and WB-O2 Slim products, FuelTech WB-O2 sensors measure the amount of oxygen in your vehicle's exhaust gases. Your engine's computer uses this data to help figure out the current air/fuel ratio. FuelTech also offers an alcohol model designed for high horsepower alcohol combinations, providing high accuracy and low AFR readings. Maintain fuel efficiency and emissions standards with the FuelTech WB-O2 sensor best suited for your application.
Not Yet Reviewed
$99.00
Denso Oxygen Sensors
Oxygen sensors, also known as Lambda sensors or O2 sensors, are among the most sensitive and critical components on your car's engine. They monitor the air/fuel mixture under idle, moderate acceleration, and cruise conditions. Oxygen sensors have a smaller range of limits in detecting and adjusting the difference from an optimum air/fuel ratio than the newer wide range air/fuel sensors (A/F sensors). Today's engines may use as many as four oxygen sensors to monitor exhaust gas oxygen content and catalytic converter efficiency. In order to perform these functions properly, Denso oxygen sensors adhere to strict OE standards within incredibly close tolerances. A malfunctioning or incorrectly calibrated oxygen sensor can hurt drivability and illuminate the check engine light, resulting in costly and time-consuming repairs. Denso First Time Fit oxygen sensors are designed to meet those tolerances and more. Key features and benefits of Denso Oxygen Sensors include: * Robotic laser welds * Porous PTFE filters block efficiency-robbing contaminants * Double-protection covers maintain proper temperature for quicker response times and protect ceramic elements from silicone and lead fouling * Rugged, watertight stainless steel housings resist corrosion and contamination * Aluminum oxide trap layers keep silicone and lead out, preventing damage to the platinum electrode * Refined zirconia elements improves sensor response * Superior design maximizes engine performance while reducing fuel consumption and harmful emissions * First Time Fit design delivers the right part the first time
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$50.99
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$99.99
On Sale
Holley Sniper EFI Canister Style Ignition Coils
New for the Holley Sniper EFI product line is a factory replacement Sniper EFI canister-style ignition coil. This ignition coil is potted with a premium-grade epoxy, making it perfect for high-vibration environments—and it can be mounted in any direction, even if it's horizontal, vertical, or upside down. "No oil" means "no failure" for multiple mounting positions. The Sniper EFI canister coil is perfect for anyone wanting to upgrade their ignition system, while maintaining a factory look under the hood. Features: * Metal canister is epoxy filled to protect the internal coil windings from high-vibration applications * Improved output coil for electronic ignitions, and MSD ignitions (ballast resistor required for points) * 100:1 turns ratio and lower primary resistance produce high-voltage output
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$64.65
$58.19
On Sale
ACCEL SuperStock Ignition Coils
ACCEL SuperStock coils are excellent high-performance coils. They're designed with optimized low resistance and a high turns ratio, for higher energy output. This also results in quicker starts, improved throttle response, and more high-rpm power.
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$65.89
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$81.05
$50.67
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$72.95
Delphi Throttle Position Sensors
Are you experiencing hard starts, stalling issues, rough idle, or hearing a slight pinging within your engine? Don't panic. It may be related to a bad throttle position sensor. Delphi throttle position sensors are designed to sense throttle movement and change of position. They also regulate various engine and vehicle operations, including spark timing, air and fuel ratio, torque converter lockup, air conditioning, and idle speeds. With that said, throttle position sensors are an important component, and if your existing sensor seems to have gone bad, just swap it out for a new one from Delphi.
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$52.99
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$89.99
Bosch Premium Universal Type Oxygen Sensors
Worn-out sensors can cause engine performance problems and premature catalytic converter damage. Bosch premium universal type oxygen sensors with OE SmartLink produce precise output in proportion to the air/fuel ratio, due to a sophisticated sensing element. These premium sensors also use a patented connector system, which allows them to be added to an existing OE sensor harness. Keeping a properly functioning oxygen sensor in your vehicle saves money on fuel cost and is good for the environment, too!
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$66.99
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$76.99
Aeromotive VaporWorx Fuel Pressure Sensors
Aeromotive VaporWorx fuel pressure sensors are exclusively for use with all VaporWorx PWM (Pulse Width Modification) kits that require a fuel pressure sensor. Efficient energy management is one of the main goals in the automotive industry, regulating actuators by (PWM), which is a widespread means of improving efficiency. PWM fuel pressure sensors are used to precisely control the speed of a fuel pump by rapidly turning the power on and off in varying durations, allowing the engine to receive the exact amount of fuel needed based on driving conditions. This ultimately improves fuel efficiency and reduces unnecessary wear on the pump by only running it at full power when required; essentially acting like a "throttle" for the fuel pump. Select the sensor for your application. Key points of PWM fuel pressure sensors: * Dynamic fuel pressure control—unlike traditional systems, PWM allows the fuel pressure to adjust rapidly depending on engine load, throttle position, and other factors, ensuring optimal fuel delivery at all times * Reduced power consumption—by only running the fuel pump at the necessary speed, PWM significantly reduces the power draw from the battery, improving fuel economy * Lower noise levels—operating the fuel pump at variable speeds with PWM helps minimize noise generated by the pump * Returnless fuel systems—PWM is often used in modern "returnless" fuel systems, where the excess fuel is not returned to the tank, simplifying fuel system design How it works: -- Signal from the ECU: The engine control unit (ECU) sends a PWM signal to the fuel pump controller, which determines the duty cycle (the ratio of "on" time to "off" time) based on engine conditions -- Pump speed control: The controller uses the PWM signal to rapidly switch the power to the fuel pump, effectively adjusting its speed -- Feedback loop: A fuel pressure sensor monitors the actual fuel pressure and sends this information back to the ECU, allowing for fine-tuning of the PWM signal to maintain desired pressure
Not Yet Reviewed
$68.95
ACDelco Gold Oxygen Sensors
ACDelco Gold oxygen sensors are high-quality replacements for many vehicles on the road today. They are special feedback sensors on your vehicles exhaust system, measuring the proportion of oxygen in the exhaust gases. Using this measurement the engine management computer can then adjust the air/fuel ratio to achieve optimized fuel economy, performance, and emissions. Order the model recommended for your application.
Not Yet Reviewed
$59.99
Holstein Parts Vehicle Speed Sensors
Vehicle speed sensors measure wheel speeds and provide this information to the vehicles ECU (Electronic Control Unit). The ECU then calculates ignition timing, transmission shift points, and air/fuel ratios for the vehicle. Data from the Vehicle Speed Sensor is also used in cruise control systems to maintain a constant speed. Holstein Parts focuses on using only the highest quality materials, manufactured to exacting standards for an aftermarket product that is truly built to match or exceed the OE part. Holstein Parts vehicle speed sensors line has superior coverage for domestic and import applications.
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$50.99
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$97.99
On Sale
Crown Automotive Oxygen Sensors
Crown Automotive oxygen sensors make modern electronic fuel injection and emission control possible. They help determine—in real time—if the air/fuel ratio of a combustion engine is rich or lean. If your sensor functions fail and testing confirms that your unit is faulty, simply order the Crown replacement compatible with your Jeep, Chrysler, Plymouth, or Dodge vehicle. These components are assembled from the finest grade materials and are always field-tested to ensure quality performance.
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$55.99
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$108.99
$50.39
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$98.09
Sierra Marine Flame-Thrower Ignition Coils
Sierra Marine Flame-Thrower ignition coils upgrade stock coils to something with more wallop! They are 1.5 ohm, with oil-filled canisters, which keep their low-resistance windings secure and cool for reliable long-term performance. Features: * Low resistance and improved turn ratios * Produces the higher voltage needed to run larger spark plug gaps * Added power and better fuel economy * More windings maximize energy and reliability over the full rpm range * Fits existing brackets for easy installation
Not Yet Reviewed
$73.99
Clearance
Motorvation Stage 1 Computer Chips/Modules
These Stage 1 performance chips/modules from Motorvation will improve the performance of your car or truck with very little work. Perfect for vehicles with little or no modifications, they're programmed for power increases under hard throttle conditions such as towing and wide-open throttle. They offer a full range of DST programming for the air/fuel ratio, ignition advance, and transmission. They are also fully track and dyno-tested to ensure the most possible power without affecting drivability or fuel economy.
Not Yet Reviewed
$107.99
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$109.99
$73.50
AiM Sports Jackshaft Sensors
How fast does your jackshaft spin? You won't know until you get connected with AiM Sports jackshaft sensors. These sensors will provide precise numbers to help keep your junior dragster on track for winning performance. Gathering data from the jackshaft collar, the magneto resistive sensors plug into your MyChron to assist in calculating wheel speed in mph (jackshaft rpm and final drive ratio). Develop an accurate spin on the data you need with AiM Sports jackshaft sensors.
Not Yet Reviewed
$85.00
