Yep, straight off the DD site.
Injectors- DDx = Diesel Dynamics and power level.
BDx = Bully Dog and power level.
Marine 300, 275RV, 370's are Bosch designations with the 300 and 370's being 12v injectors.
The DD power levels are 1,2,3, then "mentals" as in super, dooper, and mega--or something like that. DD injectors are extrude honed and the #3 is the largest "street" injector. The Mental series is for racing/pulling and drug use--nitrous and propane, but there are a few on the street.
The BD injectors run from 1-8 I think. That's about all I know about them.
EDM is another injector term you'll here. It is "electro? discharge machining" Metal is removed by an process involving electricity. Don M. is one of the big names in that field--find him at DTR. Extrude honed injectors are "opened up" with an abrasive compound sorta like sandblasting.
"Big injectors" are opened up internally to flow more fuel. This has to be done very precisely to keep fuel atomization proper. IOW -if they don't spray the fuel don't burn.
But injectors are only part of the story, the 160hp pumps might need some internal mods to feed the bigger ones. All things in balance makes a better truck.
I say pick a power level and the appropriate injector and build to it. I just installed the DD3's (100hp increase from stock), and with my DD fueling module, MUST go to a larger turbo to use the upper levels of power. I also have to upgrade the fuel supply system and will probably work on getting cooler air into the system.
If you're going to upgrade the clutch or transmission then the stock turbo should handle about 350 or so RWHP. The stock clutch typically gives up around 300. With a turbo/exhaust, injectors, fueling mods, and clutch/transmission work you can go 425-500 before headwork, cam, and secret recipes have to be considered.
I'm going for 475.
My clutch and exhaust have already been addressed.
Check out the "configurator" at DD. You don't have to follow it absolutely, but it's a real good jumping off point.
HTH
