Electrical, Ignition & Data Systems
Power your race car and monitor its performance with premium electrical, ignition, and data systems from Quarter-Max. We carry high-performance racing batteries, custom wiring harnesses, switch panels, advanced ignition controls, and complete data acquisition systems to keep you completely dialed in at the track.
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Air Solenoid Valves & Air Switches
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Batteries & Accessories
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Delay Boxes, Dial Boards & Timers
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FuelTech USA
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Gauges
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MSD Ignition
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LED Lights
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Racepak & Data Systems
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Radio Communications & Mounts
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Starters & Accessories
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Switch Panels & Wiring Supplies
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Weather Stations
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RaceAir Cloud Weather Station with Texting, Wing & Paging
Computech
$2,939.95The RaceAir Cloud Racing Weather Station is the most accurate and comprehensive trailer weather station on the market. Computech gives you every weather variable you need including sunlight intensity...COMP-3315$2,939.95 -
RaceAir Pro Weather Station
Computech
$787.45The RaceAir Pro Competition Weather Analyzer is Computechs top of the line all-in-one electronic drag racing weather station. It utilizes highly precise digital sensors to detect even the smallest...COMP-1000$787.45 -
RaceAir Weather Station
Computech
$734.95The portable RaceAir handheld racing weather station utilizes the same digital sensors as the RaceAir Pro but without the extra calculations and formulas. It features automatic air sampling with an...COMP-3000$734.95 -
RACEPAK 1/4" Stinger EGT Thermocouple, 18"
Racepak
Retail: $157.95$139.95Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. Supercharged and turbocharged engines use EGT sensors rather than air/fuel sensors due to the volume of...RAC-800-TC-S4-18Retail: $157.95$139.95 -
RACEPAK 1/4" Stinger EGT Thermocouple, 23"
Racepak
Retail: $157.95$139.95Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. Supercharged and turbocharged engines use EGT sensors rather than air/fuel sensors due to the volume of...RAC-800-TC-S4-23Retail: $157.95$139.95 -
RACEPAK 1/4" Stinger EGT Thermocouple, 28"
Racepak
Retail: $157.95$139.95Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. Supercharged and turbocharged engines use EGT sensors rather than air/fuel sensors due to the volume of...RAC-800-TC-S4-28Retail: $157.95$139.95 -
RACEPAK 1/4" Stinger EGT Thermocouple, 32"
Racepak
Retail: $157.95$139.95Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. Supercharged and turbocharged engines use EGT sensors rather than air/fuel sensors due to the volume of...RAC-800-TC-S4-32Retail: $157.95$139.95 -
RACEPAK 1/4" Stinger EGT Thermocouple, 36"
Racepak
Retail: $157.95$139.95Exhaust Gas Temperature is a critical indicator of the performance of a typical racing engine. Supercharged and turbocharged engines use EGT sensors rather than air/fuel sensors due to the volume of...RAC-800-TC-S4-36Retail: $157.95$139.95 -
RACEPAK 1/8" NPT Hose Extension
Racepak
Retail: $51.50$45.78This 4" long braided steel line comes with 1/8 NPT male and female ends and can minimize harmful vibrations to a pressure or vacuum sensor.RAC-810-XP-HOSEEXTRetail: $51.50$45.78 -
RACEPAK 2-Pin Molex Connector Kit
Racepak
Retail: $17.49$15.55This replacement connector can repair a damaged cable, V-Net module or sensor that connects to Racepak's Molex 2-pin connectors. Includes both male and female connectors, extra pins and sockets and...RAC-810-CN-MOL2Retail: $17.49$15.55 -
RACEPAK 3-Pin Molex Connector Kit
Racepak
Retail: $14.33$12.74This replacement connector can repair a damaged cable, V-Net module or sensor that connects to our Molex 3-pin connectors. Includes both male and female connectors, extra pins and sockets and...RAC-800-CN-MOL3Retail: $14.33$12.74 -
RACEPAK 3/16" Manifold Temperature Thermocouple
Racepak
Retail: $191.95$169.95This exposed tip Type-K thermocouple reacts quickly to changing temperatures in manifold plenum. Must be used with the appropriate thermocouple amplifier module. Probes measures 12” in length...RAC-800-TC-MT-ASMRetail: $191.95$169.95 -
RACEPAK 4 Channel Wideband Controller, Cylinders 1, 3, 5, 7
Racepak
Retail: $1,799.95$1,599.954 Channel Controller, Cylinders 1, 3, 5, 7 (For use on 1, 3, 5, 7 cylinder bank of V8, i.e. GM & Mopar) Racepak has an excellent selection of A/F controllers and sensors created specifically for...RAC-220-VM-AF4-1357Retail: $1,799.95$1,599.95 -
RACEPAK 4 Channel Wideband Controller, Cylinders 2, 4, 6, 8
Racepak
Retail: $1,799.95$1,599.954 Channel Controller, Cylinders 2, 4, 6, 8(For use on 2, 4, 6, 8 cylinder bank of V8, i.e. GM & Mopar) Racepak has an excellent selection of A/F controllers and sensors created specifically for...RAC-220-VM-AF4-2468Retail: $1,799.95$1,599.95 -
RACEPAK 8 Magnet Split Collar, 1.875" ID
Racepak
Retail: $168.95$149.958 Magnet Split Collar, 1.875" ID. Racepak's 8-magnet collars are perfect for automatic-equipped vehicles. These collars assist in picking up driveshaft RPM sooner than a conventional 2-magnet collar.RAC-800-CL-8M-1875Retail: $168.95$149.95 -
RACEPAK 8 Magnet Split Collar, 2.125" ID
Racepak
Retail: $168.95$149.958 Magnet Split Collar, 2.125" ID. Racepak's 8-magnet collars are perfect for automatic-equipped vehicles. These collars assist in picking up driveshaft RPM sooner than a conventional 2-magnet collar.RAC-800-CL-8M-2125Retail: $168.95$149.95 -
RACEPAK 8 Magnet Split Collar, 2.187" ID
Racepak
Retail: $168.95$149.958 Magnet Split Collar, 2.187" ID. Racepak's 8-magnet collars are perfect for automatic-equipped vehicles. These collars assist in picking up driveshaft RPM sooner than a conventional 2-magnet collar.RAC-800-CL-8M-2187Retail: $168.95$149.95 -
RACEPAK Air Fuel Sensor
Racepak
Retail: $155.95$137.95Air/Fuel Sensor Only (new style, for 220-VM-AF-series). Racepak has an excellent selection of A/F controllers and sensors created specifically for tuning race engines. Each of these 2 and 4 channel...RAC-810-SN-AFAMPRetail: $155.95$137.95 -
RACEPAK Air Fuel Sensor Weldment & Plug
Racepak
Retail: $14.32$8.27Weldment and plug for Racepak Air Fuel sensors.RAC-810-TX-AFWLDPRetail: $14.32$8.27 -
RACEPAK Air Temperature V-Net Module with Sensor, 0-300°F
Racepak
Retail: $310.95$275.95Temperature, Air, 0-300°F.This V-Net module allows you to measure air temperature, 0-300°F. Comes with a 72” lead. For a function to be monitored on the V-Net the signal from that function must pass...RAC-220-VP-TR-AIRRetail: $310.95$275.95 -
RACEPAK Brake Pressure V-Net Module with Sensor, 0-1500 PSI
Racepak
Retail: $418.95$371.95Pressure, Brakes, 0-1500 PSI.Brake pressure is important to monitor to ensure the driver leaves with the proper amount of brake pressure. These V-Net pressure sensors and modules plug in to your...RAC-220-VP-PT-B1500Retail: $418.95$371.95 -
RACEPAK Clutch RPM Module with Sensor
Racepak
Retail: $467.95$415.95This V-Net module and sensor allow units with a clutch RPM pickup on the harness to add clutch (input shaft) RPM monitoring to determine both clutch slip and transmission slip. Comes with...RAC-220-VP-CL-1Retail: $467.95$415.95 -
RACEPAK Clutch RPM Sensor, 3-Pin, 3/8" dia.
Racepak
Retail: $281.95$249.95Zero Crossing RPM Sensor, 3-Pin 3/8” dia. This non-powered sensor is designed for monitoring magnetic pulses. It must be used with an RPM input designed for a zero crossing sensor. This speed sensor...RAC-800-SS-ZX-3Retail: $281.95$249.95 -
RACEPAK Cylinder Head Temperature V-Net Module with Sensor, Left, 0-600°F
Racepak
Retail: $449.95$399.95Temperature, Cylinder Head, Left, 0-600°F.This V-Net module allows you to measure cylinder head temperature, 0-600°F. Comes with a 36” lead. For a function to be monitored on the V-Net the signal...RAC-220-VP-TC-HEADLRetail: $449.95$399.95 -
RACEPAK Cylinder Head Temperature V-Net Module with Sensor, Right, 0-600°F
Racepak
Retail: $449.95$399.95Temperature, Cylinder Head, Right, 0-600°F.This V-Net module allows you to measure cylinder head temperature, 0-600°F. Comes with a 36” lead. For a function to be monitored on the V-Net the signal...RAC-220-VP-TC-HEADRRetail: $449.95$399.95 -
Out of stock
RACEPAK Door Car Front Shock Travel Kit, 0-4"
Racepak
Retail: $1,743.95$1,549.95The name of the game in racing is traction, and keeping your tires firmly planted under all track conditions and surface abnormalities have become a science. Monitoring suspension deflection through...RAC-280-KT-DSHKTRVFRetail: $1,743.95$1,549.95 -
RACEPAK Door Car Rear Shock Travel Kit, 0-8"
Racepak
Retail: $1,631.95$1,449.95The name of the game in racing is traction, and keeping your tires firmly planted under all track conditions and surface abnormalities have become a science. Monitoring suspension deflection through...RAC-280-KT-DSHKTRVRRetail: $1,631.95$1,449.95 -
RACEPAK Drag Smartwire Power Control Module
Racepak
Retail: $2,699.95$2,399.95The Racepak Drag SmartWire serves as a drag vehicle's power distribution center. Solid state design eliminates traditional fue panels, breakers and relays while reducing wiring complexity and weight...RAC-500-KT-SWDRAGRetail: $2,699.95$2,399.95 -
RACEPAK Driveshaft RPM Sensor, 2-Pin, 5/16" dia.
Racepak
Retail: $188.95$167.95This speed sensor is commonly used to detect driveshaft RPM or wheel RPM. This plastic sensor has a 5/16" fine thread pitch and is triggered using magnets. Works with the following Racepak data...RAC-800-SS-PRO-5Retail: $188.95$167.95 -
RACEPAK Driveshaft RPM Sensor, 3-Pin, 5/16" dia.
Racepak
Retail: $250.95$222.95This speed sensor is commonly used to detect Drive Shaft RPM or Wheel RPM. This metal sensor has a 5/16" fine thread pitch and is triggered using magnets. Works with the following Racepak data...RAC-800-SS-MSC-5Retail: $250.95$222.95 -
Out of stock
RACEPAK Driveshaft Sensor Mount Bracket
Racepak
Retail: $46.74$41.55This driveshaft bracket allows you to fasten your Racepak driveshaft sensor to a 9" center section. Fits all 5/16" sensors and features slotted mount for easy adjustment.RAC-800-MB-SS-5Retail: $46.74$41.55 -
Retail: $15.74$13.99 -
RACEPAK Emergency Kit
Racepak
Retail: $224.95$199.95The Racepak Emergency Kit (REK) contains essential spare components that any racer who depends on a Racepak system should keep handy. In the heat of battle at the track, it’s easy to misplace...RAC-890-DR-REKRetail: $224.95$199.95 -
RACEPAK Fluid Temperature Sensor, 0-300°F
Racepak
Retail: $107.95$95.89This sensor is commonly used to measure the temperature of fluids such as water or engine and transmission oil where the temperature does not exceed 300°F.RAC-810-TR-300Retail: $107.95$95.89 -
RACEPAK Fuel Carburetor Pressure V-Net Module with Sensor, 0-15 PSI
Racepak
Retail: $418.95$371.95Pressure, Fuel, Carburetor, 0-15 PSI.Monitoring your regulated (carburetor) fuel pressure is important to ensure your normally-aspirated motor is receiving the right amount of fuel. These V-Net...RAC-220-VP-PT-CP15Retail: $418.95$371.95 -
RACEPAK Fuel Nozzle Pressure V-Net Module with Sensor, 0-300 PSI
Racepak
Retail: $418.95$371.95Pressure, Fuel, Nozzle, 0-300 PSI.On a supercharged application, it's important to monitor your fuel pressure after the barrel valve. These nozzle pressure modules and sensors allow you to do just...RAC-220-VP-PT-NP300Retail: $418.95$371.95 -
RACEPAK Fuel Pump Pressure V-Net Module with Sensor, 0-150 PSI
Racepak
Retail: $418.95$371.95Pressure, Fuel, Pump, 0-150 PSI.Monitoring fuel pump pressure is the best way to keep stay on top of your fuel system, and will alert you if you have a problem with your fuel delivery system. These...RAC-220-VP-PT-PP150Retail: $418.95$371.95 -
RACEPAK Fuel Pump Pressure V-Net Module with Sensor, 0-300 PSI
Racepak
Retail: $418.95$371.95Pressure, Fuel, Pump, 0-300 PSI.Monitoring fuel pump pressure is the best way to keep stay on top of your fuel system, and will alert you if you have a problem with your fuel delivery system. These...RAC-220-VP-PT-PP300Retail: $418.95$371.95 -
RACEPAK Fuel Pump Pressure V-Net Module with Sensor, 0-75 PSI
Racepak
Retail: $418.95$371.95Pressure, Fuel, Pump, 0-75 PSI.Monitoring fuel pump pressure is the best way to keep stay on top of your fuel system, and will alert you if you have a problem with your fuel delivery system. These...RAC-220-VP-PT-PP075Retail: $418.95$371.95 -
RACEPAK Head Temperature Thermocouple
Racepak
Retail: $188.95$167.95This thermocouple-type sensor monitors the temperature of the metal, not the coolant. The ring-style probe has a 12" long cable that is terminated with a two pin male miniature connector.RAC-800-TC-HT-ASMRetail: $188.95$167.95