If you're looking for better diesel fuel economy, more horsepower, and a diesel torque boost, an Adrenaline HPOP 7.3 upgrade might be the "unicorn" you're after.
DHD has written extensively about 7.3 HPOP Upgrades, HPOP leaks, and HPOP R&R procedures. Now let's go deeper with a down and dirty 7.3 HPOP solution that's one of the best upgrades you can give your 7.3 Powerstroke.
Dieselsite describes it as a "Higher-Volume High Pressure Oil Pump with mounting gasket and o-rings"
Wanna know where those gaskets and o-rings go? Get the full details on how to remove and replace the 7.3 Powerstroke HPOP.
Dieselsite says the warranty "...covers anything short of abuse, tampering and obvious physical damage caused by you. Warranties are VOID on any pump that has been tampered with."
Bottom line — don't mess with it, just install it.
And, "YOU CAN SEND ANY YEAR 7.3L 1994-2003 FOR A CORE."
The Adrenaline HPOP 7.3 works with the following 7.3 injectors:
The 7.3 Adrenaline will fit 1994-2003 7.3 diesel Powerstrokes. However, there are two flavors/options to choose from and you have to specify which one fits your truck.
You've got a couple of fitting thread options that effect the price of the Adrenaline.
Given that over-torquing 7.3 HPOP fittings can ruin the entire high pressure oil pump and cause it to have to be refurbished again, you should at least be aware that the threads are ... "sensitive." (i.e. the o-rings on the fittings are what make the seal to the HPOP and NOT cranking down on the fittings with a crowbar!)
Dieselsite's Adrenaline HPOP upgrade is a "bolt-on heavy-duty refurbished 7.3 HPOP replacement." As such, the many reviews and reports I researched suggest you may get the following benefits:
Bear in mind, it's tough to get performance boosts out of upgraded, higher flow, injectors if you don't upgrade your 7.3 HPOP. In Dieselsite's own words "The bigger the injector - the more power gains."
Though the Adrenaline 7.3 HPOP upgrades are rebuilt and tested to exacting specs, every installation—every truck—is different. The reports and reviews I researched reported the following:
And though these are by no means scientifically, lab-tested results, every review points to happy 7.3 Powerstroke owners, reviving their tired and multi-hundred-thousand-mile diesels with a new Adrenaline HPOP at the core of their fuel delivery system.
And that ain't bad.
A new Adrenaline HPOP for your 7.3 is a great place to start!
Here's a fun video, testing a 7.3 with an Adrenaline HPOP on a 1/4 mile drag strip. The guy spitting as the truck passes by seals it. "That dog will hunt, right there!"
If you want to get down into the details of the 7.3 Powertroke HPOP as well as the HEUI fuel delivery system, here are our top articles on the 7.3 HPOP.
7.3 Powerstroke OIL CHANGE and CAPACITY Secrets
7.3 Powerstroke INJECTORS – Ultimate Buyer’s Guide