This Holley Terminator X universal MPFI kit provides plug-and-play fuel and spark control for domestic V8 engines, such as conventional pushrod Chevrolet and Chrysler engines, with EV1 injectors. The ECU uses real-time fuel learn, high-impedance injector drivers, an integrated 1-bar MAP sensor and 4 programmable inputs and outputs, and it comes loaded with base maps for common V8 combinations. Holley packages this version with a Bluetooth module as its display and interface.
Key Features:
- Plug-and-play engine control for domestic V8 engines, such as conventional pushrod Chevrolet and Chrysler engines
- Universal MPFI main harness and EV1 injector harness included
- Real-time fuel map learn takes the guesswork out of tuning the base fuel table
- High-impedance injector drivers power Holley EFI injectors and most stock injectors (low-impedance injectors are not supported)
- Bosch LSU 4.9 wideband oxygen sensor relays air/fuel ratio data to the ECU for accurate readings and tuning control
- Built-in 1-bar MAP sensor; on boosted applications it can be disabled in favor of an external MAP sensor, and the harness includes a terminated connector for it
- MAP sensor vacuum hose adapters included (1/8, 1/4 and 3/16 in.)
- Plug-and-play ignition capability with Dual Sync and HyperSpark distributors (HyperSpark requires adapter 558-323)
- 4 programmable inputs (12V, ground, 5V and frequency) for items such as pressure sensors, nitrous activation triggers or a trans brake
- Boost control by time, gear, RPM and speed, with boost safeties
- Single-channel nitrous control, wet or dry, progressive or non-progressive, with rich/lean safeties and a closed-loop AFR target
- Advanced tables (four 1D, one 1D per-gear, four 2D and one 2D per-gear) for custom strategies such as a flex fuel offset or a fuel or oil pressure safety
- On-board diagnostic LEDs for ECU power, engine run, wideband status, TPS calibration, crank signal and cam signal
- Compact ECU mounts almost anywhere (diagnostic LEDs must face up)
- Plug-and-play compatible with Holley EFI gauges, shift lights, modules and digital/pro dashes (Holley P/Ns 553-106, 553-111 and 553-112)
- Free Holley EFI tuning software gives advanced users full laptop access
Specifications:
- Application: Universal domestic V8 (multi-port injection)
- Ignition Type: Universal
- Injector Connector: Jetronic/Minitimer (Bosch EV1)
- Transmission Control: None
- MAP Sensor: 1-bar, internal
- Display/Interface: Bluetooth Module
- Part Number: 550-936-B
Terminator X ECUs are designed to be mounted with the diagnostic LEDs facing up.
FAQ
What engines does the 550-936-B kit fit?
Domestic V8 engines, such as conventional pushrod Chevrolet and Chrysler engines, set up for multi-port injection with EV1 injectors.
What distributors does it work with?
It offers plug-and-play ignition capability with Dual Sync and HyperSpark distributors; HyperSpark distributors require adapter 558-323.
Can it run boost?
Yes. The internal 1-bar MAP sensor can be disabled in favor of an external MAP sensor, the harness has the connector terminated, and the ECU offers boost control by time, gear, RPM and speed.
What display comes with the 550-936-B?
Holley lists this bundle with a Bluetooth module. The free Terminator X software also allows full laptop tuning.
Does it control the transmission?
No. Holley lists this kit without transmission control.
