Apparently everyone forgot about the 10/11-hole Dragon Fire and Dragon Flow injectors from almost 20yrs ago.
Weston, I feel like you and I used to be close friends back in the day. Over time I guess we have grown apart.
I too remember when II pushed their 10 hole injectors, and I have personally seen the sloppy wet mess they created at idle and lack of power vs smoke output on the top end. So I too wrote off adding more holes to injectors as a possible solution or worthy R&D venture. However, as a true enthusiast with access to a dyno and legitimate business budget for R&D, I bought a set of DDP's "new pilot technology" and started testing... expecting them to suck...
I'm here to tell you, on my dyno, we have racked up hundreds of hours testing this new injection nozzle technology and it legitimately is better in everything we've tested from stock to 1000 rwhp.... covering 95% of the street trucks. It worked so well in-fact, that I had to have it for my customers. If you look closely at my website, you'll see that Power Driven carries DDP products a "direct competitor", but their injectors performed incredibly well in testing.
Over time, DDP agreed to make custom nozzles for me that were my own recipe; different from DDP's offerings and thus the Power Jet was born. So although the nozzles are made on the same machines in North Idaho, the hole sizes, angles, honing, etc.
are all different. Thankfully DDP is a team player and they are willing to share their nozzle manufacturing expertise with "the competition". I'm no wizard, it took several nozzle revisions and a ton of dyno testing to come up with the current Stage 2 Power Jet which I would agree is the best street injector for a 450 to 900 HP 12v Cummins bar none. The newest DDP 4's are a little better when going for more than 900 HP as we've pushed them to just over 1200 HP.
Pilot orifice is a made up term, pilot injection is a complete separate injection event. The nozzle pictured below has been running in a large cubic inch Detroit since 2017, just didn't have any cool names for it.
View attachment 79034
The fact that Detroit uses the same technology
"since" 2017 should be a strong indicator that it demands further investigation and testing on these 25 year old trucks.... Weston, I don't want more competition in this premium multi-hole injector market so I'm okay reading your negative opinions. However, as an advocate for pushing diesel technology forward, you really should give "pilot jet technology" a closer look, especially for your street customers.
If you look closely at my website, we do not "yet" offer Power Jets for the 1500 HP race truck crowd because we have not completed testing. I can't say for a surety if Power Jet technology will be better in maximum HP applications, but its been such an improvement on the 1000 HP and less applications, I'm going to continue testing in the greater than 1000 HP environment.
So many will ask, why does it work for Detroit Diesel, DDP, and Power Driven but not for Industrial Injection, or anyone else in the Midwest that may or may not have tested multiple holes? The answer lies within the ratio of hole size between main orifices and secondary orifices. And the post EDM honing process(s) that require different size and type media to appropriately hone the different orifice size for optimal K factor.
(10) holes at 0.009" did not test well for street 12mm or 13mm p7100 pumps. So far, 10 total holes has never worked better than fewer holes. Conversely, 5 identical sized holes has never worked better than 6 or more holes with different sizes.
Why are these injectors so expensive? The nozzles start as blanks, and run through the EDM, then the hone, then back to the EDM, and finally back through the honing process.
I've built my personal performance reputation on being heavily focused on bang for the buck and inexpensive DIY mods to extract performance on a budget. Power Jets are not targeted at maximum fuel per dollar spent, they are targeted as the best injector for a given power level because they run cooler, cleaner, and make more power.
[ame="http://www.youtube.com/watch?v=0mELgMNMgEc"]Power Jet Fuel Injector Development | 12v Cummins Dyno Test | Power Driven Diesel - YouTube[/ame]