Engine/Transmission (1998.5 - 2002) DD2 or DD3's for towing?

[Rob Thomas]

Originally posted by cmckinney

So could you put in DDIII's without worrying to much about a stock clutch?



-CM

Well I didn't say that. My stock clutch didn't last 5 minutes with the Power Max alone, with stock injectors.



Later, Rob

 

[Rob Thomas]

Re: Injectors & emissions?

Originally posted by mchelius

I was just wondering if any of you guys have had any problems getting dd2's or 3's through emissions tests? Do you disconnect your fueling box's?

Emissions tests? We dont' have any stinkin' emissions tests here. Good thing too.



Later, Rob

 

[Heetseeker_1]

Rob,



So am I correct in assuming that it would be no problem to run DD2's with my HO with out melting down? Keep in mind that my turbo is stock. I got off the phone with someone ) ) talking prices for bombing parts this a. m. and that some one was dead against DD2's with an HO with a stock turbo and the True Torque power Module. (High EGT's) I guess I may have to just drive by the guages until I can dig up a coffee can for the turbo mod.



Steve.

 

[Rob Thomas]

Steve,



I haven't used II's, but I do have a HO with the III's and had a stock trubo and no melting, so yes, II's would be no problem. "Drive by the gauges"? Yep, thats why you have them, they're not just to look neat.



Later, Rob

 

[Heetseeker_1]

Crimany Rob!!



You just cost me $600 plus a core charge.







Steve.

 

[MUDDY]

Re: Injectors & emissions?

Originally posted by mchelius

I was just wondering if any of you guys have had any problems getting dd2's or 3's through emissions tests? Do you disconnect your fueling box's?

nice thing about running an edge comp. on 1x1 it defuels at low boost. that gives u no smoke w/ dd2 injectors











heetseeker, with 2s u gotta pay close attention to the pyro towing uphill at high altitude in the eth. i imagine with the 3s youd be watchin the guages closer than the hiway.



just plan on a pdr40. i did to fully appreciate my dd2s/loose wire comp and im a happy boy now

 

[Mark_Kendrick]

It makes for all but no smoke on 3s too. But who wants to drive without smoke

 

[MUDDY]

Originally posted by Mark_Kendrick

It makes for all but no smoke on 3s too. But who wants to drive without smoke

heck,,,,,,certanly not i. i look in the mirror to check my smokeclouds just to get my jollies Oo.

 

[Mopar-muscle]

i got thru emissions in mass ... . they didn't check it .



if you buy any injectors and live in a state that checks emissions , eat the core charge and save your stock injectors or get a comp , it really defuels on 1x1 ???? cool , i just got one i can see me passing da test with bullydog 8's :-laf

 

[Proram]

Inj.

I Know i'm gonna get Crap for this but here i go. I have DD-3's

A drag ufm, Stock turbo and clutch. I tow an 8500 lb prowler regualry on 3/5 and dont go over 1000 deg. 800 is the norm.

as for the clutch I just Blew off a 410 Rwhp /900 Ft lb. at kauffmans on the Dyno jet. So I guess what i'm saying is EVERY ttuck is different, EVERY Driver is Different. Gather all the Options and make your own Choice. Thats how i Learned.



Proram

PS. I Stand fully Behind DD's Stuff!

 

[TNT]

Rob Thomas

So, when you were hauling the 20000, what kind of temps did you have? flat or hills? 55mph, 65mph?



Todd

 

[Rob Thomas]

They were high, but not rediculous, unless I hammerd it, but then who tries a speed record with 20,000#'s? You need to watch the gauges, thats why they're in the truck. My temps @60mph flat ground were 900*, any incline upto 1100-1200*, still in the safe zone, but could bury the gauge at will, but why? If I stayed in direct, I had no EGT issues AT ALL. I can run 60-65 mph in direct with 3. 55's, 315 tires, in the 6-speed.



Like I said, if your hauling backhoes for a living, the III's are prolly not the answer, but you can tow MOST things without trouble.



Later, Rob

 

[jmeehan]

Originally posted by Heetseeker_1

Rob,



So am I correct in assuming that it would be no problem to run DD2's with my HO with out melting down? Keep in mind that my turbo is stock. I got off the phone with someone ) ) talking prices for bombing parts this a. m. and that some one was dead against DD2's with an HO with a stock turbo and the True Torque power Module. (High EGT's) I guess I may have to just drive by the guages until I can dig up a coffee can for the turbo mod.



Steve.

Steve,

That sounds like someone I was talking to when I bought my TTPM last month. I'd have to guess it's the same someone. I've done my research though and I'm going with DD 2's when I can afford them. First I need to move my EGT probe pre-turbo.

 

[Gary - K7GLD]

"You need to watch the gauges, thats why they're in the truck"



And right there is a basic difference in bombing philosophy - at least as far as PRACTICAL power application in TOWING situations is concerned!



I bomb my truck to get maximum, realistic, and MAINTAINABLE towing performance (for ME!) - that is, performance I can run all-out, 24/7, and THEN use the guages only for OCCASIONAL monitoring, not trying to drive with one eye on the road, while fearfully watching the guages lest I melt something down...



What good are mods, planned for rather constant daily use, if you are so close to the "edge" that the guages must be considered an absolute MUST, if the motor is to live? I have an oil pressure guage, coolent and fuel guage too - but don't feel that I must constantly keep an eye on them lest I run outta gas or oil - they are for occasional monitoring - not constant monitoring - and for that matter, what good are towing mods so extensive, that you CAN'T keep the hammer down, for fear of component failure?



I know - it's an INDIVIDUAL preference thing - I use my guages too - but I don't create a condition to the point THEY dictate my driving habits...



Different strokes...

 

[Heetseeker_1]

85CJ,



I'm with you. The DD2's are going to give my HO the performance I expect out of my truck. Now, I just have to find a good price on them and bite the bullet.



Gary,



You bring up a good point about the limits and boundries of bombing. Though my experience and knowledge of these cummins powered trucks is still in the incipient phase of a Bomber, your comments about 'different strokes' reminds me of a constant umong us bombers. We are different, but have one thing in common... . The cummins powered dodge.



I look at bombers as people who fit several different levels of the disease...





Level one: Truck for towing, minor truck improvements, minor engine mods, 'personalized' their truck.



Level two: Truck for occasional towing, moderate truck improvements, 250-350 hp, defends the cummins dodge to the grave...



Level three: Truck for occasional towing, major truck improvments, 350-450 hp, major knowledge base improvements over level two, their truck is part of the 'family' with birthdays too.



Level four: 450 hp and above, sick with the bombing disease, friends look at them and say, "what has happened to you?" May include racers and sled pullers.



I think i'm going to stay with the Practical and Maintainable level and watch the gauges.



Steve -- level 2 junkie

 

[WadePatton]

scary thing

is that a few $ can move one up the scale as quick as anything.



Like, I still _need_ bigger injectors/turbo/exhaust/ and bed liner for my truck.



But with a few dollars more--I'd build a second CTD--Weekend Warrior for fun and occasional sled pulling. You know something with 4-wheel drive and 500+HP or so and big stacks.



So where do I score?



Oh and if anybody has decided to change injector size, PM me. I might replace my stockers.

 

[Gary - K7GLD]

I certainly agree ther are various significant levels of "bombing fever" - as employed by various members here - some are pretty impressive!



I only made my point since THIS thread was specifically aimed at towing use - and the demand upon a truck used for towing are frequently different and more demanding than stoplite-to-stoplite applications - heavy loads up long steep grades don't neccesarily place high instantaneous shock loads on an engine and drivetrain, but DO keep rather high, SUSTAINED loads on them that sometimes may be even more damaging... A quarter mile drag run that might provide 1700 degrees EGT for mere seconds, is likely far less concern than a 10 mile grade that keeps the EGT at 1300 for the whole 10 minutes - and especially if done very often...



It's worth considering when add-on power is applied - the planned APPLICATION has substantial impact upon a "reasonable" choice...

 

[GTop]

I'm running a TTPM with DDII's. When towing i'm grossing just over 17,000 pounds for the truck and trailer. I have to set my TTPM on timimg only when towing to manage EGT's on the long hills. With it set on timing only EGT's arent an issue. Running empty I dont have an EGT problem at all no matter how hard I run it. I'm hoping a turbo and 4 inch exhaust will let me tow with the TTPM on the most aggresive setting. With this combo I dynoed 350/830.