We visited Edelbrock and took note of a particular ’57 Chevy that was sitting in Vic’s Garage with their other, well-known cars. The ’57 recently completed the Hot Rod Power Tour, and Troy Hooker, Inside Sales Manager for Edelbrock, said it made the entire trip without a problem.
On the surface, that wouldn’t surprise us because we all know that Edelbrock builds some pretty awesome machines, and we know they’re built for driving. But there was something different about this Chevy, and when we took a closer look at it we realized that it was sporting a new product that Edelbrock was testing.
Never a company to rest on their laurels, Edelbrock was testing their new E-Street EFI system while on Tour. The yet-to-be-released E-Street EFI System will allow muscle car and street rod owners to replace their carburetor with a complete EFI system that will bolt to your existing manifold. The E-Street EFI system is a no hassle, fuel injection system that you can install by yourself. According to Edelbrock, you don’t need a degree in computer engineering, and you don’t have to use a laptop because it’s self-tuning.
The E-Street EFI comes with everything you need to convert from carburetor to EFI; there’s a wide band O2 sensor that allows you to monitor the air-fuel ratio (AFR) and the four fuel injectors are mounted on the square bore (4150 style) throttle body, which also includes the fuel rails, linkage and all sensors needed for fuel injection.
Troy shared that this system will tune itself, based on parameters that you select from the easy-to-use Bluetooth wireless tablet included with the kit. The fully assembled OE quality wiring harness makes connections a breeze, and the included electronic control unit (ECU) can mount almost anywhere, including the engine compartment.
Using the tablet, start the setup process and answer questions about your car and engine, and let the computer do the rest for you. If you want to tune the EFI a little, for either fuel economy or performance, it can also be done with the tablet.
All of the software needed is already installed and adjustments can be made directly from the tablet. You can control electric radiator fans and air conditioning relays, as well as monitor your performance right from the tablet.
While many EFI systems use a two-wire, narrow band O2 sensor, the E-Street EFI uses a five-wire, wide band O2 sensor to give you full control over your air/fuel ratio. With a narrow band sensor, the only thing your computer cares about is whether you’ve met the target a/f ratio and typically only functions in a normal driving or cruising environment. With a wideband O2 sensor, the readings are typically from 7:1 to 20:1 for the a/f ratio, meaning that the sensor works with the computer at all levels, and that helps the computer to make the proper adjustments. A narrow band sensor won’t communicate to the computer how far away from the target a/f ratio your engine is running, only that it’s not where it should be; a wide band sensor lets the computer know where the a/f ratio is so that the computer can make the proper adjustments.
Wideband O2 Sensor vs. Narrow Band
- Wideband reads 7:1 to 20:1 air/fuel ratio; narrow band only reads target A/F ratio (14.7:1).
- Wideband sends readings and info to computer; narrow band is a ‘yes’ or ‘no’ reading.
- Wideband can sense idle, cruise and full throttle A/F ratio; narrow band senses cruise A/F ratio.
- Wideband can help you tune for performance/economy; narrow band is not for tuning.
Are you an experienced EFI tuner? You can also use your skills to make custom adjustments and tune the EFI even further, giving you complete control of all parameters. If you have one tune that you’d like to use for cruising, another for commuting, and yet another for racing, the tablet will allow you to create and modify unlimited calibrations for your EFI. When you connect with the ECU via a wireless environment, you can make your adjustments from the cockpit or from outside the car. And not only can you tune your EFI with the tablet, but you can also download music using the Bluetooth wireless connection.
Troy told us that the only thing you would need to add is an electric fuel pump – since you will need about 55 psi fuel pressure for the injectors. One thing that Vic Edelbrock, Jr., passed on to us as he was heading out in his Corvette, is the E-Street EFI is self-tuning, meaning that after you set your parameters you can simply start the car and the ECU will do all the work for you and make whatever adjustments are necessary to keep your engine running smoother.
So if you’ve had enough of the cold starting problems and adjustments necessary with carburetors, step up to the E-Street EFI self-tuning fuel injection system in your hot rod or muscle car. And when you put your air cleaner on the throttle body, nobody will be any wiser until they take a closer look at what’s really under the hood. Keep an eye out for it from Edelbrock, and check out the video above for more information.