Installing an electronic fuel injection system is one of the best upgrades for a performance car. Options such as the Holley Sniper 2 EFI can boost your vehicle’s power and fuel efficiency. Correct installation is absolutely vital to getting the most out of your new EFI system. Before you buy your kit and get to work, you’ll want to make sure you understand the process. Keep reading for five tips that can help make your EFI installation go smoothly.
First and Foremost: RTFM
Before you begin your project, your first step is reading and understanding the instructions that came with your kit. This may seem obvious, but it’s critical to know the steps involved in the process. The instructions may also provide helpful information in case you get stuck or run into unexpected issues during installation.
Schedule Enough Time for Your Project
Depending on your workspace, knowledge, and comfort level, it may take at least a full day to install your kit. More experienced auto enthusiasts may be able to complete this project within a few hours. Either way, you want to take your time, understand what you’re doing, and avoid rushing through the process.
Pay Attention to Your Wiring
For most kits, you will need to connect the proper wires to the battery positive and grounds, the tachometer signal, and a switched 12-volt source. The 12-volt source should be a true ignition source: in other words, active when the ignition key is turned, the engine cranks, and the engine runs. Your kit’s instructions should include additional details about proper wiring schematics.
Mount the Oxygen Sensor Correctly
Make sure you properly mount the O2 sensor. Your kit should include an oxygen sensor. You’ll want to place it around six to eight inches after the merge point in the header collector. There should also be between 18 and 24 inches of exhaust pipe length after the sensor’s placement. This is an especially salient point if you’ve already installed a custom exhaust, so take measurements if needed to ensure you mount the sensor in an optimal location.
Install the Fuel Pump in the Right Place
Proper fuel pump placement is key to getting the most out of your EFI. For the system to work correctly, the fuel pump must be gravity-fed. Electric fuel pumps push fuel instead of pulling it like mechanical pumps, so gravity is needed for priming and delivery. Tom Kise of Holley recommends placing the pump inlet at or below the bottom of the tank and as close to the tank as possible. This position ensures that it has enough gravity for priming and delivery. Installing an EFI kit can be an extensive process depending on the type of vehicle you have and your experience level. Auto enthusiasts with intermediate to advanced mechanical skills should be able to complete this project without much difficulty. Whether sourcing an EFI kit, a short block engine, or other supplies, shopping at a reputable aftermarket performance parts retailer ensures that you receive the quality, value, and support you need.
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