Thermocouple Head Temp Assembly

The RACEPAK Thermocouple Head Temp Assembly (part number 800-TC-HT-ASM) is a precision exhaust gas temperature (EGT) probe engineered for cylinder head monitoring in performance and racing applications. This single-unit thermocouple sensor delivers real-time temperature data from the combustion chamber exhaust path, enabling engine tuners and performance technicians to detect lean conditions, detonation risk, and thermal stress before they cause damage.

The assembly features a 12-inch wire lead that integrates with RACEPAK data acquisition systems, allowing direct sensor input to telemetry displays and logging equipment. The compact head-mounted design places the probe directly in the high-temperature EGT stream, providing the fast thermal response critical for tuning high-rpm engines where millisecond-level temperature swings indicate critical conditions. The 0.08 lb weight and minimal physical footprint ensure installation flexibility without adding significant mass or creating installation complications on tight engine bays.

This sensor is standard equipment in professional motorsports environments—drag racing, road racing, and high-performance street applications—where tuners require cylinder-specific temperature feedback to optimize fuel maps and ignition timing. Engine builders use cylinder head thermocouple probes to validate cam timing, port flow, and fuel mixture across the full rev range. The 12-inch lead length accommodates most engine bay layouts while maintaining signal integrity to the acquisition module.

RACEPAK's thermocouple assemblies are widely adopted in professional tuning shops and race teams because they deliver accurate, repeatable EGT data without the noise and latency that plague lower-cost probes. Compatible with RACEPAK IQ3 and RaceCapture data systems, this head temp assembly is a critical component for anyone building or tuning a high-performance or racing engine where margin-of-error is measured in air-fuel ratio points and ignition degrees.