Search for parts here
Press & drag to view
Holley EFIPart 550-1074Made in US
Product Details
⭐
Key Features
8 Injectors - 800-1500 HP
The Terminator X Stealth 4150 2x4 EFI systems from Holley features 8, 100LB/HR Fuel Injectors capable of supporting up to 1500 HP naturally aspirated or 1250 HP on forced induction applications. The Terminator X ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower.
8 Injectors - 800-1500 HP
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
- OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service
- Plug and play compatible with multiple Holley EFI accessories including our gauges, shift lights, various modules, and digital and pro dashes (Holley P/N's 553-106, 553-111, and 553-112)
- Bolt on 2x4 4150 Flange Carburetor Replacement
- Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
- Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
- Integrated ignition timing control
- Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
- External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as Holley part # 12-886
- High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
- Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
- Internal 1bar MAP sensor, built into the Terminator X ECU
📖
About this product
8 Injectors - 800-1500 HP
📋
Product Specifications
Accelerometer Support
Yes
Air Metering Style
Mass Air Flow and Speed Density
Automotive Item Grade
Performance
Boost Control
Yes
Brand
Holley EFI
California Proposition 65 Chemical Name
1
California Proposition 65 Required
Yes
CAN-BUS Support
Yes
Category
Air and Fuel Delivery
Cfm
950
Coil Per Cylinder Ignition Support
Yes
Color
Shiny
Country
US
Datalogging Support
Yes
Distributor Included
No
Dry Nitrous Control
Yes
E85 Support
No
EGT Support
Yes
Emission Code
3
Finish
Shiny
Flange Size
4150
Flange Style
Squarebore
Forced Induction Support
Yes
Fuel Filter Included
No
Fuel Hose Included
No
Fuel Injection Type
Sequential and Batch Fire
Fuel Injectors Included
Yes
Fuel Pressure Regulator Included
No
Fuel Pressure
58.5 PSI
Fuel Pump Flow Rating
N/A
Fuel Pump Included
No
Fuel Pump Type
N/A
Grade Type
Performance
Handheld Included
Yes
HTS Code
8409915085
Idle Air Control Motor Included
Yes
Ignition Timing Control
Yes
Ignition Type
Universal
Individual Cylinder Fuel Corrections
No
Injector Size
100 lb/hr @ 58.5 PSI
Inlet / Outlet Size
6AN
Intake Manifold Included
No
Knock Retard Support
Yes
MAP Sensor
1
Max Horsepower Rating
1500+
Multi-Stage Nitrous Control
Yes
Part Type
Fuel Injection Conversion Kit
Product Type
EFI System
Progressive Nitrous Control
Yes
Prop 65 Yes/No
Yes
Self-Tuning
Yes
Terminator LS Options
Fuel
Throttle Body Finish
Polished
Throttle Body Material
Aluminum
Throttle Bore
1.75 in.
Throttle Position Sensor Included
Yes
Traction Control Support
Yes
User-Tuneable
Yes
Warning
California Proposition 65
Warranty
Manufacturer's Limited 90 Day Warranty
Wet Nitrous Control
Yes
🛡️
Warranty & Compliance
Warranty
Manufacturer's Limited 90 Day Warranty
Country of Origin
US
⚠ Prop 65 Warning
Yes
1
Emissions Code
3
HS Code
8409915085
📐
Dimensions & Shipping
Product Dimensions
26.7 × 14.9 × 9.9 in
Shipping Dimensions
26.7 × 14.9 × 9.9 in
Weight
9752 g (9.75 kg)