"Around the point that the intake tract is constricted, fuel is injected under pressure, allowing it to take maximum advantage of the air speed. In the converging tract manifold, most of the fuel that falls out of suspension as the wall is constricted is picked back up and put into suspension instead of being pushed along the walls.
"Fuel supplied into the nozzle of an EFI Hilborn injector can be as high as 60 lbs psi, allowing the injector to spray the fuel in a fan pattern. It also allows a consistently smaller-sized droplet, which is much more consistent than that of a booster. Therefore, the airspeed will not dictate the size of the droplet, which in turn allows the fuel to mix in better proportion with the air, providing improved engine efficiency and therefore making more power.
The Hilborn injection systems...
The Hilborn injection systems utilize a Carabine ECU that doesn't require a laptop to tune. It doesn't require a MAP, MAF, or O2 sensor either, and it is quite easy to install. The fuel curve is pre-programmed at the factory and simple tuning requires only a screwdriver. The Carabine ECU uses wide-open throttle, part throttle, and light throttle inputs for fuel management; there are also inputs for idle quality, cold start, and accelerator pump. A rev limiter is provided for those who require one, and optional altitude and air charge temperature sensors are available. It's the perfect answer for those unsure about a laptop system.
"Since a Hilborn injector does not require a bowl for fuel storage, it is an ideal system for any application that will create excessive fuel slosh, as in road race and autocross applications.
"Separation caused by the fuel crashing into the plenum floor is eliminated due to the individual throat design of the Hilborn injector. Also important is the reversion in which one cylinder has no effect on the other cylinders. This allows each cylinder to act on its own, greatly improving the engine's ability to produce equal power from the fresh intake charge each cylinder receives on the intake stroke. Since each cylinder has its own throat, the line of sight to the intake valve is improved, resulting in a straighter shot for the air/fuel mixture. The fewer turns the mixture has to make, the more the fuel stays in suspension, providing enhanced distribution into each cylinder.
"The Hilborn injector has numerous advantages over carbureted systems. A carburetor requires a correctly sized venturi for its application in order to pull fuel out of the booster. However, the Hilborn, with its injected fuel, can maximize airflow potential by removing the restriction associated with the booster while enlarging the throat diameter, allowing maximum breathing for the engine.
"This increase in throat size does not impede low-speed engine performance but enhances throttle response and engine acceleration. This allows for maximum engine rpm output without sacrificing low speed performance."
For maximum power, razor sharp throttle response, street-friendly drivability, and respectable fuel mileage, it's quite apparent that the Hilborn fuel injector is the right choice-and besides that, it looks awesome.