Billet External Injector Mount - Short

Having high mount injectors can enable torque and horspower gains by cooling the intake air  resulting in a denser more oxygen rich inlet charge.

NOTE: Must be used with Sequential ECU to ensure there is no *Fuel Reversion (Standoff).

* Although the air column entering your engine should only move towards each cylinder, there is a short period of time when the column comes to a stop, and then on some engine combinations, reverses direction for a very short period of time.

Fuel Reversion or Standoff, may occur during the time when the air column is moving away from the cylinder.

If the injector is open during this period, any fuel leaving the injector nozzle will be pushed away from the cylinder.  If you have injectors sitting above the Ram Tube, and Reversion or Standoff occurs, this fuel may then be deposited on the inside of an air box, or anywhere nearby around the engine bay.

This is definitely a bad situation.

To ensure this does not occur, injectors placed outside of intake runners must only be opened as the air is being drawn into the engine.  To achieve this effect, you must use an ECU capable of pulsing injectors placed outside of your intake runners sequentially with the injector end time finishing prior to the valve closing.