Engine/Transmission (1998.5 - 2002) B1, DDIII, & Comp box?

[TN farmer]

My setup is B1 quick spool, ATS manifold, DDIII, Comp box and afe cone filter. My exhaust is 4" downpipe into 5" w/stack.



I wanted to find out if these numbers sound correct?



At WOT empty I have 10 psi on fuel, max 40 psi on boost, and less than 1200 EGT.



I haven't had a chance to pull my gooseneck with it yet but my truck alone is 10K pounds, I thought I might would have more boost.



I am getting a drag comp soon but I was wondering if I could still add more fuel (injecters?) to play with when I am not loaded and then turn the box down to tow 20K pound trailer?



Robert

 

[snowracer69]

Drag Comp will destroy your EGT's... I gurantee it!



Running identical setups, I have a Drag Comp and Denis has the regular one (this is before I went to the M3's listed below, and before we BOTH changed to standard housing) my EGT's climbed faster and higher than his... 200*F to be exact, but that's just where my pyro stops (1650*F) so I don't know what it's really going to. W/ the regular comp I can only hit 1450*F.



This was at 4000' elevation, and at sea-level the EGT's are much more manageble.



To do it again, I probably wouldn't upgrade the Comp... would probably go w/ bigger injectors.



Josh

 

[thejeepdude]

I would also say keep the comp and get the injectors. From what I've heard from people towing, they've gone from DD3's to an EDM 2 (same power rating) and got more torque with less smoke. So by that token, I would think you could run a Mach 3-3. 5 injector, gain some power to play with, and be OK even while towing if you turn the box down... as long as you keep the rev's up enough to spool the B1...

 

[snowracer69]

Your numbers seem to be a little low. I have the exact set up as you do at WOT i will run at 4 psi fuel pressure, after having a new lift pump installed at the dealer. As for EGT they are 1425 at 4000 ft, and at sea level they are 1375. As for boost at 4000 ft i will run 43 lbs and at sea level i will run 46 lbs boost.



Go with the injectors, i have ran josh's box and do not like it. Because it does not seem to give you that much power and will send your EGT through the roof.



Denis

 

[TN farmer]

What is the first thing I need to check as to why my boost #'s are not as high as others?



Do you think I could go with the injectors and a drag comp (I am allready in the process of swaping boxes), or would I not be able to turn the box down enough to tow?



thanks

 

[Bob Wagner]

if you have a wastegated housing, check the pop off pressure

 

[TN farmer]

It's non wastegated.

 

[Bob Wagner]

why let boost pressure be your deciding factor on how much horsepower you need?



your combo should haul ass, if not you have other problems

 

[TN farmer]

Bob, I think you are right the truck would haul ass if it didn't weigh 10K pounds, but I also plan to sled pull with it and I don't think you can ever make enough horsepower.

 

[csevers]

I hate to butt in, but aren't ya going to have a problem finding a class to pulling with a 10k truck?



Craig

 

[RHARVEY]

snowracer69



With your fuel pressure @ WOT ... I would be looking at some way of getting more fuel.

I have a friend that is running EDM Mach 2. 5's with a TST PowerMax 3 with remote that was seeing that kind of pressure. We installed one of those fuel line kits from Rod @ Wildcat and now he cant draw the pressure below 10lbs on level 9 and his foot on the floor. This is all with a stock lift pump.



Rick

 

[snowracer69]

Rick,



Both Denis and I see the almost the same numbers for fuel pressure. I believe he's on LP #2 and I'm on LP #4 now. I was considering going w/ Rod's max-flow kit as everyone who uses it says it's a good BOMB to do and I've only read good results. The downside I see to buying it is that my warranty is up in 6000 miles. I have two good dealers at my current disposal who do not question my other modifications when replacing LP's... if pressure is low, they just slap a new one on. Once my warranty is up, since I won't have this luxury anymore, I may as well go all out and get a FASS system and forget about FP woes all-together.



That is my reasoning behind it... albeit not that sound. I just sold my stock turbo, so that would nearly finance the Max-flow kit, but I have terrible surging problems with my turbo that the TAG is claimed to fix... if you're ever driven a pickup that barks/huffs the turbo on a regular basis, you understand how much more of a priority this is over FP (even though the VP-44 is considerably more $$$ to replace).



Now look what you done... . got me thinkin' 'bout puting bigger fuel lines on again... ... it never ends... .



Josh

 

[WadePatton]

10,000#!? He can run in exhibition with the only double-spooler down here!



Bring it to the dyno we'll see what it's really doing.



The "DRAG" part of the comp --if like my DDUFM "race"--only works on level five. 1-4 defuel normally.

 

[snowracer69]

Wade,



I believe you to be wrong... many people claim that it defuels normally on the other levels, but it doesn't, at least my Drag version doesn't. EGT's still go sky high (well over 1500*F on 3x5) when not on the highest settings.



I will say one thing... there's only a handful of people on this board running over 450 RWHP at high elevation on a regular basis. I look forward to going down to Phoenix and their 1500-1900 ft MSL elevation... I have so much more fun/power there! It really is a different game playing w/ HP at altitude.

 

[Snow man]

I had 48PSI of boost with my dd3s ,drag comp,and large housing B1 turbo. i would think you'd hit 50psi with a tighter ex housing easy.

 

[WadePatton]

Lucas,



My dyno sheets show distinct defueling at 2700 on levels other than 5. Level 5 -any sublevel doesn't show this defueling whereas I had read that 5x5 was the only no-defuel mode. So that was wrong.



I could be wrong. Mine is the DD version and I've been wrong before.



Heat is no issue with mine on 5x, dd3's and a 35 hybrid--oh, but that's empty. That's the beauty of the box--it adjusts so your foot doesn't have to. BUT the foot has the final say so.

 

[BWillard]

My max boost is around 45 pounds with the same setup and Comp on 5x5.

 

[snowracer69]

Wade,



lol... I can tell you're gettin' confused here... you talk to Lucas about the 12valves, I posted first on this thread (Josh) and Denis posted again below that. LOL We all three use the snowracer69 name. Usually it's just Luke and I on the net, but every once in a while Denis jumps in and makes a post.



I've never put my pickup on a dyno, so I don't have any proof that it doesn't de-fuel... . EGT's on the other hand tell me 100% that it doesn't stop fueling at the upper end when not on 5x5. W/ the regular box on 3x5 egts aren't an issue... put that Drag one on there and things are the exact opposite. EGTs are through the roof and they don't stop climbing.



That's just what I've seen though... . results may very, some side-effects do exist, etc... .



I recently switched from the KS housing to a standard housing on my B1 and top end temps don't rise as fast, but they still get there. Also on a flat pull I only see about 42 PSI boost, but the other night w/ a full tank of fuel and 3 people in the pickup, pulling a steep hill w/ box on 5x5 I saw 48 PSI again... I had hit 54 PSI w/ the little housing while down in Phoenix...



Josh

 

[Cumminsman]

robert, we should probably look for a boost leak. maybe a boot or intercooler. you've got a pdr b1-tow manual. i think that it's a little different than the regular ks. later, nick

 

[JR2]

My Drag comp defuels on all levels except 5xX. I know this because on 5x5 I can hit 1500 deg and it keeps pulling. On 4x5 I can fell the power drop at 2700 rpm...



There is the possiblility that a bunch of our boxes are different. I know I have had a couple of Drag Comps in my truck and I have the hottest of the ones I have tried.