HOLLEY SNIPER EFI
HOLLEY SUPER SNIPER STEALTH 4150 – 650HP – GOLD FINISH
4 Barrel Fuel Injection Conversion – Self-Tuning Kit + Handheld EFI Monitor – Gold Finish
Part # 550-875
The Sniper Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Sniper Stealth 4150 ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower! Did we mention that the Stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications.
Features:
- Bolt on 4150 flange carburetor replacement fit’s a wide range of factory intake manifolds
- Throttle body mounted ECU (Electronic Control Unit) – no extra boxes to mount
- Supports up to 650HP with four 100lb/hr injectors or 1250HP with eight 100lb/hr injectors
- All of the wiring exits below the rear fuel injector cover, for a completely stealth installation
- Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor
- Three programmable 0-5V sensor inputs for oil/fuel/dome or nitrous pressure sensors
- Six programmable ground outputs for controlling external fans, nitrous or boost control solenoids
- One +5v reference output – +5V power supply for 0-5v sensors
- One sensor ground – ground supply for 0-5v sensors
- Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions
- Only 4 wiring connections required! (Battery +, battery – , switched ignition & RPM)
- Requires use of external fuel pressure regulator, Holley PN# 12-886 or equivalent, set to a base pressure of 58.5 PSI
- Integrated ignition timing control improves idle stability, drive-ability, and wide open throttle response
- High resolution full color touchscreen for initial setup, tuning, and gauge displays
- 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!
- Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
- The included Genuine Bosch LSU 4.9 wideband oxygen sensor provides realtime fuel map learn!
- OEM style TPS/IAC and fuel pressure regulator, for years of dependable service
- Included clamp-on oxygen sensor kit for 2.25″ exhaust ensures a leak free oxygen sensor installation, with stainless steel T-bolt clamps and a stainless steel (weldable) oxygen sensor flange
- Also available in black and shiny
| Brand | Holley Sniper EFI |
|---|---|
| CFM | 870 |
| Emission Code | 3 |
| Finish | Classic Gold |
| Flange Style | 4150 |
| Fuel Pressure | 58.5 PSI |
| Height | 3.28″ |
| Injector Size | 100 lb/hr @ 58.5 PSI |
| Inlet / Outlet Size | 3/4-16 Female O-Ring (AN 8) |
| MAP Sensor | 2Bar |
| Max Horsepower Rating | 650 Naturally Aspirated |
| Model | 4150 EFI Conversion Throttle Body |
| Product Type | Sniper Stealth EFI |
| Transmission | 700R4/200R4 |
| Ford C4/C6 | |
| TH350 | |
| UPC | 090127077856 |
| Part Number | 550-875 |
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