Inside the engine is a conventional oil pump which lubricates all the critical moving parts, but there is also a second oil pump. It’s an oddball design which actually works quite well, and its advantage over mechanical injection pumps like the P7100 is its ability to vary injection timing for a broader power curve. While the Cummins engines of the day used a poppet injector, Ford (technically International) used a design which has seen heavy use in commercial and industrial engines, HEUI, or Hydraulic Electronic Unit Injection. Both were manufactured by Navistar International, but there were several key differences that made the Powerstroke superior to the IDI version, and top of the list was the addition of direct injection. The 7.3-liter Powerstroke is often confused with the 7.3-liter IDI which was used in Ford pickup trucks from 1988 to 1994.
While it was never known to be a racehorse, its reputation was that of being one of the most reliable and overbuilt engines to hit the road in a production truck, but as always, you’ve got to wonder, what breaks when? Well today, we’re gonna find out. To this day, it remains the largest displacement diesel engine ever installed from the factory into a pickup, but the question remains: was bigger truly better? Why hasn’t anyone come close to matching its displacement? The two runners up are the 6.7-liter Cummins and Powerstroke, but those are still 36 cubic inches smaller than the 7.3-liter behemoth. In the early 90’s when Dodge and Chevy were putting mere 5.9- and 6.5-liter diesels into their trucks, Ford raised the bar with its juggernaut powerplant, the 7.3-liter Powerstroke. You’ve heard the phrase “bigger is better” many times in your life, especially when talking about engines. Written By: Lawrence “LT” Tolman 7.3 Powerstroke 1994 To 2003: The Big Block of Diesels Connector - Pins - or Harness not included.Pre-Programmed in Position 7 for Billet Atomizer 325-800 or Precision 500 Lb/Hr Injectors.Two outputs (Ground and 0-5V) can be run to an ECU to datalog any injector faults.8 RGB LEDs indicate proper operation as well as log faults.Injector test fire program for quick troubleshooting while in the field.Eight pre-programmed injector current curves.Eight easily programmable channels for precise injector control.
#99 7.3 INJECTOR DRIVER MODULE INSTALL#
Can be triggered by either negative or positive trigger to ease install in all EFI applications, be it a stock or aftermarket ECU.Engineered specifically to add a secondary set of high peak current injectors when utilizing a Holley EFI Dominator ECU.This module will allow you to expand the capabilities of your current Electronic Fuel Injected Engine, keeping you at the front of the field! Features: The Holley EFI Injector Driver Module will have you in complete control of your fuel injected behemoth, featuring easily programmable injector current curves, injector test fire mode, two datalogger outputs, multiple peak and hold current settings and more. The ultimate solution for methanol burning engines that require a large set of secondary injectors. Introducing the Holley EFI Programmable 8 Channel Injector Driver Module.
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