Saw the pdf version of an article from TDR 48 on one website. They tested about 10 different brands of tuners/modules to figure out how they worked and see what they were capable of. On their graph of EGT's vs HP, they divided these modules up by how they worked - pressure only, pressure and timing, duration and timing. But except for the TST module, they didn't identify which modules were pressure only, which were pressure and timing, etc.
Could anyone give me a quick rundown, by brand and using the pressure/timing/duration classifications above, as to how the different modules/tuners operate? TST they identified in the article as duration/timing, Banks Six Gun and Diesel Power Digi CR I've figured out as pressure/timing/duration, but the ones such as Dr Performance Predator I'm still pretty much in the dark.
Specific vehicle I'm looking at is a stock '04 Dodge 2500 Quad Cab 4X4 w/ Auto transmission, Common Rail (305 HP, pre-'04. 5). Belongs to a friend in Rock Springs WY. He has a long commute to work, and a long move to TX in the next couple of weeks, and diesel prices are killing him. He's on a tight budget, and as kind of an early Christmas present I said "I'll buy if you'll fly" as far as getting some type of module/tuner to help out on MPG and towing his toyhauler down to Texas. Hey, we're both retired Navy, known him for 25 years and was best man at the wedding, and his 6 year old son calls me "Uncle Mitch", how can I not help out?
Basially, we're looking for the most bang for the buck MPG wise, and something that's not going to cause inadvertent damage to his otherwise stock truck. By asking about how the different modules work, I'm trying to make sure that we don't end up with some cheap fly by night module that just jacks up fuel pressure to the point it lifts his fuel pressure relief and puts his truck out of commission, it would put him under financially. HP and torque increases aren't a consideration here, primary are price, fuel economy, vehicle reliability, works with an all stock vehicle, and ease of installation (3 weeks until the move to Texas, he doesn't have time to install a mega kit).
Also, both of us own Jeep Liberty CRD's, so whatever proves out on the Cummins brand wise will probably also end up on those as well.
Could anyone give me a quick rundown, by brand and using the pressure/timing/duration classifications above, as to how the different modules/tuners operate? TST they identified in the article as duration/timing, Banks Six Gun and Diesel Power Digi CR I've figured out as pressure/timing/duration, but the ones such as Dr Performance Predator I'm still pretty much in the dark.
Specific vehicle I'm looking at is a stock '04 Dodge 2500 Quad Cab 4X4 w/ Auto transmission, Common Rail (305 HP, pre-'04. 5). Belongs to a friend in Rock Springs WY. He has a long commute to work, and a long move to TX in the next couple of weeks, and diesel prices are killing him. He's on a tight budget, and as kind of an early Christmas present I said "I'll buy if you'll fly" as far as getting some type of module/tuner to help out on MPG and towing his toyhauler down to Texas. Hey, we're both retired Navy, known him for 25 years and was best man at the wedding, and his 6 year old son calls me "Uncle Mitch", how can I not help out?

Basially, we're looking for the most bang for the buck MPG wise, and something that's not going to cause inadvertent damage to his otherwise stock truck. By asking about how the different modules work, I'm trying to make sure that we don't end up with some cheap fly by night module that just jacks up fuel pressure to the point it lifts his fuel pressure relief and puts his truck out of commission, it would put him under financially. HP and torque increases aren't a consideration here, primary are price, fuel economy, vehicle reliability, works with an all stock vehicle, and ease of installation (3 weeks until the move to Texas, he doesn't have time to install a mega kit).
Also, both of us own Jeep Liberty CRD's, so whatever proves out on the Cummins brand wise will probably also end up on those as well.