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Holley Sniper EFI Self-Tuning Fuel Injection System Black Satin Finish 550-511

Available

$999.95



Product Information

UPC372253607653
Product TypeShipped Product
Number of reviews 0
HOLLEY SNIPER EFI SELF-TUNING FUEL INJECTION SYSTEM
BLACK SATIN FINISH

PART NO. 550-511

HOLLEY SNIPER EFI 550-511 BLACK photo 46109a2c-315a-4ca4-bb5f-396988147630.jpg

HOLLEY SNIPER EFI 550-510 photo 2a14f599-4bbf-4f71-bd15-34acd3cdff86.jpg

File photos. Actual appearance may vary.

This has become a very popular upgrade on many of our engines. For those not wanting to deal with the potential quirks of a carburetor, this is the way to go. Drivability becomes greatly improved over a carb. Startup and warm-up are also greatly improved. Tuning stays spot on. These systems make it very easy to tweak the tuning on your engine to better serve your application. Our engine room crew has found the Holley Sniper system to be a very straightforward setup. Some of our customers have requested the Fitech system, and we find them to be an inferior product in many ways to the Holley Sniper system. The customer service offered by Fitech also has been a very poor experience for us. There is no comparison in the way the two systems function, nor in the way they are set up. The Holley system is 100% made in the USA and that is not the case with the Fitech system. The Holley system has a slightly higher cost, but is well worth it, in our very strong opinion. Our company founder, Skip White, stated that he has no problems with running a carb on a street rod engine, but the ability to tune the engine to perfection and the fact that fuel metering is so perfect with the EFI system has changed how he thinks an engine should receive its fuel and air. The difference in drive between the two is vast, to say the least.


The Holley Sniper EFI self-tuning fuel injection system delivers all the benefits — and none of the hassles. The full-featured throttle body is easy to install, can support a lot of horsepower, and will keep your budget intact. It puts an end to carburetor cold start issues, hesitations, vapor lock, and flooding.

Each Holley Sniper EFI system hits the performance mark with a mounted ECU and an integrated fuel pressure regulator. It’s self-learning (no laptop is needed for set up) and includes a small color touchscreen to help you set up and tweak.

Make your conversion simple, while getting maximum bang for your buck, with a Holley Sniper EFI self-tuning fuel injection system.

HOLLEY SNIPER EFI 550-510 photo 5dee7ec0-3ddb-445d-ac96-88b6830bba81.jpg

File photos. Actual appearance may vary.

Self Tuning

Yes

User Tunable

Yes

Timing Control Compatible

Yes

EGR

No

Transmission Controller Included

No

Injection Style

Throttle body

Metering Style

Speed density

Power Adder Compatible

No

Intake Manifold Included

No

Fuel Rails Included

Yes

Throttle Body Included

Yes

Throttle Body Mounting Flange

4-barrel square bore

Venturi Quantity

4

Venturi Diameter (mm)

42.88mm

Airflow Rate (cfm)

800 cfm

Throttle Body Material

Cast Aluminum

Throttle Body Finish

Satin black

Injectors Included

Yes

Injector Size (lbs/hr)

100 lbs./hr.

Calibration Module Included

Yes

ECM Included

Yes

Wiring Harness Included

Yes

Oxygen Sensor Included

Yes

Fuel Pump Included

No

Fuel Pressure Regulator Included

Yes

Distributor Included

No

MAP Sensor Included

Yes

IAT Sensor Included

Yes

TPS Sensor Included

Yes

IAC Motor Included

Yes

Quantity

Sold as a kit.

Notes

Kit includes 4 injectors and can support up to 650 hp.


Holley Sniper EFI systems feature:

  • Bolt-on carburetor replacement designed to fit single and dual carburetor manifolds
  • Supports up to 650 hp with 4-injectors
  • 4-wire vehicle connection: battery +, battery -, switched ignition, and rpm
  • Integrated ignition timing control and coil driver
  • Color touchscreen for setup and gauge views
  • Calibration Wizard—answer a few questions about your engine and it creates the base map, then starts tuning on its own

        • Official Dyno report on our 383 engine with a Comp Cams .510/525 cam, a single plane intake with 1.5 rockers and a Sniper EFI system.

        383 510/525 w/Sniper dyno photo d3e12515-7073-4219-b9b4-1ed865d8328e.jpg

        383 510/525 w/Sniper graph photo cc053ef5-f860-4661-bd88-26bb925a4eb5.jpg

        We are not responsible for collateral damage caused by the use of this product.

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