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1. This all that you will need to get electronic fuel injection installed, up and running in your carbureted rig. E-street EFI can be ordered with a few different fuel systems depending on your needs.
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2. The main parts of the E-street EFI kit (PN 3600) includes the throttle body with all sensors attached and pressure tested fuel lines, complete wiring harness, processor and Android tablet with all the software preloaded. Charger and mounts for the Tablet are also in the box.
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3. The Universal EFI Sump fuel system is ideal for our situation. We had a low pressure fuel system worth keeping and we wanted whatever fuel pump we got, up and out of harms way. Being a dedicated trail rig means crazy off camber hills and rough roads were in the future, both situations the sumps takes in stride. All the hose, fittings, filters and wiring needed come with the kit. You can also order the 3605 sump kit by itself to retrofit other high pressure system needs.
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4. The defiant, untrainable carburetor is hiding from its impending expulsion. We started by removing it, the filter and rubber fuel lines.
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5. We wanted to get the fuel sump system mocked up first. Included in the kit are fuel line adapters to go from steel line to rubber. Use a proper tubing cutter to avoid getting metal filings in your fuel system. A clear low-pressure fuel filter was mounted in an easy to see location.
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6. The sump tank itself has mounting bosses in the back and brackets to hold the tank in place. Make sure your location allows the tank to sit vertically and avoid excessive heat, that’s really the only stipulations.
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7. Our tank sits nicely in the inner fender away from heat and possible damage.
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8. The high-pressure fuel lines could now be run and the fuel filter mounted in an easy to reach location.
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9. The included Russel fuel line uses barbed AN fittings that require some elbow grease to get together. With the hose clamped in the vice, we used a little petroleum jelly on the barbs and a heat gun to get them together. No hose clamps and no leaks.
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10. With the fuel system complete, it was time for the throttle body. Fuel pressure, air temp, throttle position and manifold vacuum sensors are all built in. We only had to hook up the fuel and vacuum lines, as well as our throttle cable.
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11. The electrical portion was next on our install list. All the plugs used are weather pack style, are labeled and can only go to one location. You will need to splice into your ignition system for a tack signal and install the included coolant temperature sensor.
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12. Keep the harness away from areas that could damage the wiring either by being pinched or burnt. Other then what is included, the system requires a constant 12V power wire, a ground, a switched 12V lead and a tach signal in order for it to run.
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13. Because the computers electronics are not sealed from the elements, they got mounted to the inside of the firewall. The main harness is pretty long, but make sure you have enough cable length before you go drilling holes just in case.
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14. The Bosch O2 sensor comes with a weld in bung and should be mounted as close to the exhaust collector as possible. If you don’t have a welder, a plug is included so you can run down to a local shop to get it burnt in place before you begin.
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15. Edelbrock’s new filters on Spectre’s 4-inch intake plenum setup ensure clean incoming air for years to come.
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16. After going through our “to do” checklist and making sure the system was ready to go, we broke out the included Android tablet and answered a few simple questions to get the engine up and running. Follow the prompts and within minutes you’ll be turning the key forgetting what a “choke” ever was. Having the tablet be wireless makes fine tuning much easier then tripping over wires while under the hood.
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17. The tablet comes with a few different displays depending on what you want to use it for. After the initial setup, you never need to see it again if you choose. In our case, we use it to keep an eye on engine vitals as the sensors are much more reliable then our factory units.
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18. Extra features can be found in the advanced setup page and adjusted on the fly. We like the built in cooling fan controller and the idle adjustment switch is perfect when running the engine driven on board air setup. Custom fuel maps and tunes can be loaded if you have a special application.
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Pro-Flo Filters
Edelbrocks new Pro-Flo filters with Pro-Charge strip.
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Universal Intake System
Spectre’s universal intake system was an easy choice from Summit Racing’s online catalogue.
Story and photos by Bryan Irons
Converting from carburetion to electronic fuel injection is a no-brainer and has been on our “must have” list for years. Until recently, making the change involved custom tuning, fuel map changes and constant adjustments, possibly a computer science degree. Ain’t nobody got time for that! The advent of Edelbrocks E-Street self-tuning EFI had us salivating at the dream of hearing the old Carb hit the bottom of a dumpster. What a beautiful sound it would be.
Our test mule “Stinky Jeep” has had some pretty drastic changes made to the 304 AMC V-8 under the hood during its time with us. Camshaft, induction, ignition and exhaust were all upgraded with very noticeable results. But the addition of Edelbrocks E-street EFI has made the biggest difference in performance and drivability by far. Getting the setup was as easy as clicking online at Summit Racings website for everything needed to step into the modern age.
Installing the entire system took us under eight leisurely hours in the shop and required no extra parts other than what was included in the kit. The main components in our box of trinkets consisted of: the throttle body that replaced the 4150 style four-barrel carburetor, the computer, a well labeled and organized wiring harness and a wireless android tablet that is used for setup and monitoring the system. The tablet communicates via Bluetooth to the main computer so that changes can be made on the fly, or you can monitor what’s going on under the hood. The tablet is only needed for setup, but with the unreliable 30-year-old gauges adorning the dash, it’ll stick around for a while.
The original low-pressure fuel system was still in good shape making Edelbrocks new returnless universal EFI sump fuel kit, the smart choice. It uses the existing fuel system as a lift pump to a small remote sump tank with a built in high-pressure pump that will now act as the EFI fuel feed and regulator. For an off-road rig that will see extreme angles and rough roads, this is ideal. The small tank is always kept topped up allowing fuel to be available at all times and situations even if it cannot be drawn out of the main tank for a short period of time. The system also saves you from having to drop your fuel tank for modifications, or mounting a noisy external pump to be subject to the elements.
After completing the work of getting the system in, it was really nice to hear the engine fire on the first try. Basic information like engine displacement, ignition type, camshaft profile and idle RPM were the only answers needed to get us rolling. Walking around the rig with the tablet in hand watching the computer learn and react was pretty impressive compared to the old days of fuel maps and flashing chips. A built in dual fan control is just one of the added functions the E-street can perform. The system also allows you to manually adjust set points like air/fuel ratios and digital accelerator pump action if you feel you need to adjust them manually.
The self tuning system does have a bit of a learning curve and will take some driving to get to know your engine, so plan on a tank or two of fuel for the computer to work out all the kinks. After an hour of leisurely driving around we felt confident enough in the E-Street’s learning abilities thus far for some gnarly off-road angles and full throttle attacks in the dirt.
Having the V-8 mill not only stay running, but hold an idle while almost on it’s side was a big change from its carbureted days. Rough roads at high speeds used to slosh fuel down the engines throat and stall out, not anymore. All the time we were still able to monitor the motors vitals at a glance and feel the snappy throttle response. Elevation, humidity and temperature changes are all taken in stride and the fuel maps are constantly being updated.
After having driven “Stinky Jeep” in its antiquated carbureted state, it’s nice to be able to get in on a cold morning, turn the key and have it fire up first try. The system we chose is rated for up to 600 HP, meaning that if we choose to upgrade in the engine department further, the system will be able to adapt. Edelbrock took the right direction with the E-street by utilizing components that can easily be sourced and have a track record for reliability; commonly found relays, Bosch 18mm O2 sensor, AN fuel line fittings and more will ensure our E-street EFI will be running for years to come.
Edelbrock Pro-Flo Air Filters
To cap off the E-street EFI install, a Speed by Spectre (PN# 796) 4-inch dual plenum intake system was ordered in from Summit Racing so that fresh cool air could be ducted into engine. Capping the dual intakes is a pair of Edelbrocks new washable Pro-Flo filters. Available in a multitude of sizes and colors, the small 4-inch long versions in black were chosen for their compact size while still able to flow WAY more air than our 304 could ever engulf. Stainless band clamps and a clean plating job really show the quality put into these filters. Another bonus is the small section of bright white filter media in each unit so you can easily tell if it’s time for a cleaning.
Edelbrock www.edelbrock.com
Summit Racing Equipment www.summitracing.com
Spectre www.spectreperformance.com