how about an HE351ve ??
Well now, I actually have NO idea how to specifically answer your question, as I am NOT a turbo guru, and have not even yet completed the HE351cw to HE351VE (ie VGT from a 6. 7L CTD) that I am gathering parts for on my truck,
HOWEVER, all that being said, I DO know that the HE351VE VGT (variable geometry turbo) from the 6. 7L trucks, offers MUCH faster spool-up then the stock turbo on a 3rd gen truck simply beciuase of the variable nozzle technology they incorporate but they ALSO provide an exhaust brake function, based on the same tech.
AND NOW, Fleece performance has just announced that they will soon release one of their standalone VGT controllers that will seamlessly integrate with the 12 valve CTD, using MAP and boost readings to control spool-up. These units will ALSO be customizable with USB upgradeable, realtime software that will run on a windows based laptop which, from my understanding, will also allow the user to custom tune the software for their specific truck AND fueling mods.
While certainly others have modified and installed the HE251VE turbo on both 2nd and 3rd gen trucks, Fleece has very much pioneered the field in standalone electroinic control of the HE351VE turbo. They have had their products available for a couple years now and most everyone who uses one (both on 2nd and 3rd gen trucks) praises the set-up for its ease of install and functionality.
MORE INFO... you can buy an HE351ve VGT takeoff from ebay or other forum classifieds for approximately $200 TO $400 depending on coinditon and mileage and parts included, and then add the cost of the $650 Fleece controller, and perhaps some other costs with other needed install parts (ie exhaust manifold, flange adapter, or IC tubes or gaskets or whatever), but pretty much for around $1200 max, you can have a faster spooling, better flowing, Cummins designed, Holeset built VGT turbo that comes off the newer Ram trucks on your older Ram truck... AND YOU GET AN EXHAUST BRAKE to boot... ( sorry... I get VERY excited about this subject, and can't wait to get it done on my truck. . I already have the turbo andmanifold, but still need to buy the controller sometime this winter when I have time and hopefully money) to insatll everything.
OK here is the link to the video showing the Fleece prototype 12v controller--
Fleece HE351VE Standalone Turbo Controller - YouTube
You'll have to contact Fleece themselves for more info
Like i said earlier, I am not at all sure if this is the right tubo for your truck and mods, but I owuld guess at the very least it would be worth looking into, particularly if you have any need or use for an exhaust brake. OF course, I also need to point out that if you have an AT instead of manual in your truck , you would also need some sort of standalone TC controller to make full use of the EB function of the HE351ve turbo.
OK. . help that helps a little. :-laf