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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Out of stock
RACEPAK V-Net Fuel Flow Meter Module
Racepak
Retail: $310.95$275.95Monitoring pressure to evaluate your fuel system will only give you half of the picture. To know the exact status of how it is affecting your engine you must also know the fuel volume. Use this...RAC-230-VM-FLOWRetail: $310.95$275.95 -
RACEPAK V-Net Infrared Temperature Sensor 0-400°F
Racepak
Retail: $701.95$623.95These infrared sensors are used to monitor temperatures where contact cannot be made with the item being monitored. In racing, they are commonly used to monitor temperatures across the face of a...RAC-220-VP-IR-T-200Retail: $701.95$623.95 -
Out of stock
RACEPAK V-Net Pressure Module, 5v
Racepak
Retail: $224.95$199.95V-Net Module Only, Pressure, 5 volt.This replacement V-Net module is used to monitor a variety of pressures. This is the same module as used with our analog and digital sensor/module combination...RAC-230-VM-PT-5VRetail: $224.95$199.95 -
RACEPAK V-Net Shift Light/Event Module
Racepak
Retail: $350.95$311.95The Shift Light Module allows you to use any LED-style light (300 milliamp maximum) as a fully-programmable, stand-alone shift light. By accessing the engine RPM off of the V-Net you can program up...RAC-230-VM-SHIFTLTERetail: $350.95$311.95 -
RACEPAK V-Net Sportsman/ IQ3D/G2X Shock Travel Module
Racepak
Retail: $393.95$349.95The ability to monitor, record and review high resolution shock data is now available for Racepak's Sportsman, IQ3 Drag, and G2X data loggers. The new 500Hz V-Net Shock Travel Module provides:• Plug...RAC-230-VM-4ANA7HSRetail: $393.95$349.95 -
Out of stock
RACEPAK V-Net Tee Cable, 18"
Racepak
Retail: $119.95$105.95Tee cables allow the user to "branch off" the main V-Net cable, to access V-Net sensors and modules that are out of reach of the main V-Net cable.V-Net modules and Interface modules, although similar...RAC-280-CA-VM-T018Retail: $119.95$105.95 -
RACEPAK V-Net Tee Cable, 36"
Racepak
Retail: $116.95$103.95Tee cables allow the user to "branch off" the main V-Net cable, to access V-Net sensors and modules that are out of reach of the main V-Net cable.V-Net modules and Interface modules, although similar...RAC-280-CA-VM-T036Retail: $116.95$103.95 -
RACEPAK V-Net Tee Cable, 9"
Racepak
Retail: $119.95$105.95Tee cables allow the user to "branch off" the main V-Net cable, to access V-Net sensors and modules that are out of reach of the main V-Net cable.V-Net modules and Interface modules, although similar...RAC-280-CA-VM-T009Retail: $119.95$105.95 -
RACEPAK V-Net Terminator Cap, Female
Racepak
Retail: $35.92$31.93V-Net modules and Interface modules, although similar in construction and appearance, are very different in the functions they perform. It is important that components designed for one system not be...RAC-280-CA-VM-TCAPFRetail: $35.92$31.93 -
RACEPAK V-Net Terminator Cap, Male
Racepak
Retail: $35.04$31.15V-Net modules and Interface modules, although similar in construction and appearance, are very different in the functions they perform. It is important that components designed for one system not be...RAC-280-CA-VM-TCAPMRetail: $35.04$31.15 -
RACEPAK V-Net to Smartwire Tee Cable, 18"
Racepak
Retail: $99.95$88.25This cable allows users to connect a Smartwire to their V-Net sensors and/or data logger. This cable allows the SmartWire unit to share information from your Racepak V-Net system to further enhance...RAC-280-CA-BN-T18Retail: $99.95$88.25 -
RACEPAK V-Net to Smartwire Tee Cable, 36"
Racepak
Retail: $99.95$88.25This cable allows users to connect a Smartwire to their V-Net sensors and/or data logger. This cable allows the SmartWire unit to share information from your Racepak V-Net system to further enhance...RAC-280-CA-BN-T36Retail: $99.95$88.25 -
RACEPAK V-Net to Smartwire Tee Cable, 9"
Racepak
Retail: $83.95$74.55This cable allows users to connect a Smartwire to their V-Net sensors and/or data logger. This cable allows the SmartWire unit to share information from your Racepak V-Net system to further enhance...RAC-280-CA-BN-T09Retail: $83.95$74.55 -
RACEPAK V-Net Voltage Module, 0-5v Input, 12v Output
Racepak
Retail: $250.95$222.95This V-Net module allows users to monitor any analog sensor (travel, pressure, etc.) that utilizes 12 volt power. This analog function module has been programmed for general usage, and has not been...RAC-230-VM-AN-12VRetail: $250.95$222.95 -
RACEPAK V-Net Voltage Module, 0-5v Input, 5v Output
Racepak
Retail: $250.95$222.95This V-Net module allows users to monitor any analog sensor (travel, pressure, etc.) that utilizes 5 volt power. This analog function module has been programmed for general usage, and has not been...RAC-230-VM-AN-5VRetail: $250.95$222.95 -
RACEPAK V300 Mounting Bracket, 1-5/8" Tube
Racepak
Retail: $202.95$179.95Mounting a Racepak data logger is easy with these lightweight, billet aluminum mounting brackets. These brackets are designed to clamp firmly around a chassis tube and provide a pre-drilled and...RAC-800-MB-V300-162Retail: $202.95$179.95 -
RACEPAK V300 Programming Cable, 25'
Racepak
Retail: $168.95$149.95This 25' serial programming cable features a 9-pin serial connector on one end, with a 25-pin connector on the other, allowing users to program, download and perform telemetry sessions with their...RAC-280-CA-SR-V300Retail: $168.95$149.95 -
RACEPAK V300SD Data Logger Universal Kit, Easy Access
Racepak
Retail: $2,137.95$1,899.95V300SD Universal 20ft Harness. Commonly used for Pro Stock, Pro Modified, Sportsman drag race classes and Land Speed. Comes with DataLink software. The new Racepak V300SD Easy Access Data Loggers...RAC-200-KT-V300SD2GRetail: $2,137.95$1,899.95 -
RACEPAK V300SD/V500SD Harness, Power, RPM, Battery Ignition
Racepak
Retail: $506.95$449.95RPM & Power harness for your V300/V300SD/V500/V500SD. This harness provides the necessary connections for:• Engine RPM• Driveshaft RPM• Clutch RPM• Record Button• Power Connects to the 'RPM' port of...RAC-280-CA-HARNPDCBRetail: $506.95$449.95 -
RACEPAK V500SD Data Logger Door Car Kit, Serialized
Racepak
Retail: $3,037.95$2,699.95V500SD with Door Car Harness, data logger commonly used for Pro Stock, Pro Modified and many Sportsman classes. Comes with DataLink V5 software. The new Racepak V500SD Securitized Data Loggers...RAC-200-KT-V500SD1SRetail: $3,037.95$2,699.95 -
RACEPAK Vacuum/Boost Remote Pressure Sensor, 30" HG
Racepak
Retail: $299.95$265.95The small size and ruggedness of these ‘PT-type’ pressure transducers make them ideal for the measurement of pressure directly at the source. The transducer requires 5 volt DC power and provides a .5...RAC-810-PT-VBRetail: $299.95$265.95 -
RACEPAK Water Temperature V-Net Module with Sensor, 0-300°F
Racepak
Retail: $310.95$275.95Temperature, Water, 0-300°F.This V-Net module allows you to measure engine coolant temperature, 0-300°F. Comes with a 72” lead. For a function to be monitored on the V-Net the signal from that...RAC-220-VP-TR-WATERRetail: $310.95$275.95 -
RACEPAK Wheel Speed Sensor, 3-Pin, 3/8" dia.
Racepak
Retail: $286.95$254.95This speed sensor is commonly used to detect either Drive Shaft (ring gear) RPM or Front Wheel RPM. This sensor has a 3/8" fine thread pitch and is triggered using ferrous (steel) material.RAC-800-SS-MSC-3Retail: $286.95$254.95 -
RACEPAK Wheelie Bar Load Cell
Racepak
Retail: $506.95$449.95Used for measuring the load pressure on the wheelie bars during launch. Requires V-Net Module and Sensor. 5/8" shank.RAC-800-SN-WBLOADRetail: $506.95$449.95 -
RACEPAK Wheelie Bar Pressure V-Net Module with Sensor, Right, 0-5000 PSI
Racepak
Retail: $418.95$371.95Pressure, Wheelie Bar, Right, 0-5000 PSI.Wheelie bar pressure is useful when trying to determine whether or not the chassis is "unloading" when launching. Used in conjunction with the Racepak wheelie...RAC-220-VP-PT-WBR5KRetail: $418.95$371.95 -
RACEPAK Zero Crossing TDC Sensor, 3-Pin, 3/8" dia.
Racepak
Retail: $281.95$249.95Zero Crossing TDC Sensor, 3-Pin 3/8" dia. This speed sensor is used to pick up Top Dead Center (TDC) on the front hub of the engine. It is designed specifically for use with MSD-style crank trigger...RAC-800-SS-TDC-3Retail: $281.95$249.95 -
Racetrac 3-Conductor, Motorola
Racing Electronics
$215.24High quality, American made stock car style (3-conductor) car harness, designed for use with select Motorola twin-pin radio models.RACI-RT4302$215.24 -
Radio Box - Heavy Duty Neoprene
Racing Electronics
$31.49Durable neoprene radio box to properly secure a two-way radio in a racecar. Includes foam inserts and heavy duty tie wraps to assist in mounting.RACI-RB-3$31.49 -
S-Series 16-Volt AGM Battery
XS Power
$429.99Specifications:• 16V• Max Amps: 2,000A• CA: 500A• Reserve Capacity: 50 minutes• Weight: 30.5 lbs• Dimensions: 10.24" L x 7.20" H x 6.75" WPROP 65 WARNING: This product can expose you to chemicals...XSP-S1600$429.99 -
SB175 Standard Housing, Red
$18.89This is a Standard Housing (SB175) compatible with a Shell Size 175. Its robust construction and clear dimensions make it ideal for secure and reliable power connections. Key FeaturesProduct...QM-610002-1R$18.89 -
Shark Fin UHF Radio Antenna
Retail: $60.89$49.99Antenex Laird Black Phantom Elite Antenna. Frequency Range 806-866. Gain 3 dB. Bandwidth 20 MHz. Power (watts) 100. Whip Material ABS Plastic Whip Length 3.4" Base NMO Style Mount. On door cars...QM-610055Retail: $60.89$49.99 -
Single Plug Battery Charge Kit, Large
$54.59Single Plug Battery Charge Kit, LargeSingle-piece connector design makes these kits a breeze to install! Includes handle and replaceable contacts. Wire not included.Use with our Single Plug Battery...QM-214127$54.59 -
Single Plug Battery Charge Kit, Small
$30.44Single Plug Battery Charge Kit, SmallSingle-piece connector design makes these kits a breeze to install! Includes handle and replaceable contacts. Wire not included.Use with our Single Plug Battery...QM-214153$30.44 -
Speedwire Solid-State Battery Disconnect 300/500
Speedwire Systems
$499.99Engineered for the uncompromising demands of professional racing, the Speedwire Solid-State Battery Disconnect (or Isolator) represents the pinnacle of electrical safety and performance. Unlike...QM-610109$499.99 -
Speedwire Systems Rear Battery Shut Off Button & Mounting Plate Kit
Speedwire Systems
$119.99Upgrade your race car’s safety system with the ultimate lightweight solution from Quarter-Max. The Speedwire Systems Rear Battery Shut Off Button is a professional-grade, electrical alternative to...SPW-BSO-1$119.99 -
Super Duty Complete Wiring Kit
K&R
$702.45K&R's "SUPER DUTY" Complete Wire Kit has been the leading choice of most all the major chassis shops. And for good reason - its simple, bullet-proof reliable, and complete, all at a great price...K&R-SD-SPD-CI$702.45 -
Ultra Lightweight 2 Gauge Battery Cable
$3.56This ultra lightweight 2 gauge battery cable exceeds the industry CEA-2015 cabling standards. Features:• Designed to be super flexible• Easy to use in any installation• 10% Oxygen Free Copper• 90%...QM-610060 | QM-610060B$3.56 -
Ultra Lightweight 8 Gauge Battery Cable
$1.35This ultra lightweight 8 gauge battery cable features a 735 strand count in a special soft-touch PVC casing.Features:• Designed to be super flexible• Easy to use in any installation• 10% Oxygen Free...QM-610061 | QM-610061B$1.35 -
Velcro Mount Push To Talk Switch
Racing Electronics
$104.99Velcro mount (platinum) push-to-talk switch with hook-and-loop closure mount.RACI-RE703$104.99 -
Voltage Step-Down Module
XS Power
$249.99This Voltage Step-Down Module is designed to work with automotive 16V, DC electrical systems with or without alternators. Many electrical components benefit from higher voltage, but some more...XSP-993$249.99