Engine/Transmission (1998.5 - 2002) HP from a comp box?

[TN farmer]

I am building a 98. 5 3500 for a dual purpose truck that I can haul loads on the farm (15000#) and also have the ability to be competitive on the pulling track.



I have a chance to buy a edge comp box and want to know what combination I would need w/injectors and if I would have to buy a turbo or not. I am going to get a clutch to hold the power.



What hp with just the box, injectors + box, and is anyone running the drag comp?



I was hoping to get @450 hp with everything on and then be able to turn the box down/off and tow my trailers.



Is this possible?

 

[KatDiesel]

With just only the COMP box you should be able to hang onto your HX35 for a while, just make sure you got the boost level 30 to 34psi. If you were to add injectors then you'll definatly have to consider doing something on the air side (turbo).



Yes your goal is easily obtained. However with the stock turbo it will be quite warm in 5x5 with some 100hp injectors.

 

[marksmith]

I run the drag comp and dd2's along w/ my stock hx35 turbo. IMHO you will not keep the stock clutch for very long if you hook up the wire. But the good news is there are clutch companies that make high quality clutches, the "right" one is like asking which oil is best or which transmission is best. Do the research and You will have PLENTY of reading to help you decide.

I personally run a 13x1. 25 OFE from SouthBend. I had the first one replaced due to slipping and am now in my second one and it too is starting to slip when I am loaded. I have an oddball truck and my TQ peak is very low (1100 at 1700 rpm) and it is not quite rated for that much tq at so low an rpm. So I think I am going to be forced to "climb the ladder" Which clutch I go with or the manufacturer is still undecided. But all in all I know a bunch of people (including myself) that are happy with the SB Clutch. I probably will go with one of their DD street clutches. I hear a 600 HP cap on it. Maybe it will hold what I have.

I tow 10K trailers w/ the box on 1x3 and temps dont go over 1100. That is with boost pressures about 34-37 psi. I dyno'd recently at Piers dyno day and hit 439. 4. I believe that may be a bit high but with my combo I believe me to be a solid 420 HP. If you are looking for 450 I would suggest dd3's and an hx-40 (PDR or Qwikspool)

As far as the Drag Comp, the only difference I am aware of is that it does NOT defuel at 2700 rpms on 5x5. This is only useful IMO if you are racing or pulling. A towing rig would rarely use this feature (WAAAYYYYY to hot for me to pull with on 5x5)



To make a long story short you can use the comp and turn it off when you dont "need" the power (You probably will never have it in the off position ever again) I dont believe you will make your HP mark with just the box and I can't tell you what it will make with the box alone. I say if you have a chance to buy one, then get it. You wont be unhappy with your decision.



If you have any more ??'s Just ask. I am happy to share what knowledge I have.



Take care

Mark

 

[TN farmer]

KatDiesel,



Would using an ats exhaust manifold (mine has a crack) and a larger housing let me run the 35 or do I need to plan on a turbo upgrade?



would you have to wastegate it to limit the boost?

 

[BillGotthelf]

The ATS manifold did not seem to make any difference in my truck. I added it after my PDRHX40 and DDIII's. I had mine ceramic coated and I don't believe I have to worry about it cracking. You will need the turbo upgrade-even with the HX40 I still go over 1550 degrees when I drag race. I will be changing out the HX40 to a KSB1B and some Mach 5's-thebombing bug bites hard.

 

[WadePatton]

Hey Robert, several things to consider, but here's my take on the deal.



Yes, 450 easy with Comp/UFM and DD3's and bigger turbo. Support systems necessary will be 13" clutch (flywheel upgrade deal), supply fuel (I like the Wildcat solution-banjo elimination and berry big lines), cool air (scotty air).



With all that stuff installed you crank up the box for pulls and fords. Then turn it down or off to pull a load--just watch the EGT's and go from there. My truck is VERY civil with just 3's and 34 psi from the OEM turbo. I'll tow with it when I go to the 13", but it barely cracks 1000 unloaded.



The DDUFM and the PE COMP are very flexible, with my direct experience being with the UFM. Contrary to popular belief, the "race" or "drag" version doesn't defuel on any level 5 setting. Not by my dyno charts--but that might be UFM only.



Cross your fingers when you hook up the pump wire. I think it is the early VP-44's that earned them the reputation of being junk. If it survives the first five minutes of Compville, then it might be all right.



Also don't forget to fix the KDP. A lot of us 24v guys don't realize that the KDP existed until sometime in 99.



Beautiful excuse to get an ATS manifold! It should help the flow, but I'd count on a full turbo to go past 400. I think the ATS is more beneficial to for the 12v's.



But heck a 16cm non-wastegated housing is pretty cheap. Slap one on when you do the manifold and see how far you can take it. Somebody will buy it when you're through and you'll have the pyro to drive by.



That's the most important thing. Use that pyrometer and remember that you ALWAYS have the ultimate control over EGT's by lifting that foot--painful as it may be, it's always cheaper than melted pistons.



I highly recommend DD injectors and the PE box-in either trim.



On a more local note: Jackson Diesel is building a *special* monster turbo for Red Arrington--Piston Slapper's dad. That truck is SICK with smoke right now--I drove it last Saturday. You might check with them for custom turbo work.

 

[TN farmer]

Wade what is KDP?



Also don't forget to fix the KDP. A lot of us 24v guys don't realize that the KDP existed until sometime in 99

 

[TN farmer]

Doe this setup sound like it would work:



Edge comp, DD3's, 16cm housing w/ats, pulling clutch

 

[WadePatton]

KDP is the "Killer Dowel Pin". Look under the 12v engine/transmission forum for the "sticky" up top. Short version: It's an assembly dowel under the timing cover. It is not uncommon for them to work loose and fall out. If it does come out it usually gets into the gears and can break the timing cover. Two prevention methods: first is pull the timing cover and use a tab of some sort to hold it in place, the other is to use a "jig" to drill a hole and insert a bolt to block it.



Plenty of reading on here about it. I haven't fixed one yet--but will soon.



The Comp/3's/16/ATS combo should give you the same fuel but more air than I have--provided you have at least a BHAF and 4" or larger exhaust (STACK IT!). That should in the low 400's, but not quite the 475 that DD says that the flow of a HX-40 would provide. You'd still have some unburned fuel--as I have. I make the same power on 5x3 as 5x5 and probably level 4, but I didn't dyno on 4. I just know that I have smoke left over at full boost on 4. BUT with the dial-in capability of the Comp, you can turn it back down for acceptable EGT's while towing.



Sounds good to me.



Personally I'm going with a bigger turbo than the 40. I feel better about the durability of the larger units--and may add more fuel later. The 40 is at its limits with 3's and a Comp.

 

[Piston Slapper]

Originally posted by WadePatton



On a more local note: Jackson Diesel is building a *special* monster turbo for Red Arrington--Piston Slapper's dad. That truck is SICK with smoke right now--I drove it last Saturday. You might check with them for custom turbo work.

Still have a little R&D to do on the turbo. Sounds good, but need to get some hooks on it first. Custom Hybrid, Laser Blasted, Ball Bearinged, Zero Balanced, HX40/50/55 Schwitzer homegrown Arrington special. Hows that for a turbo name?



TN Farmer, There are several serious pullers in West Tn area. Nick from Medon. Red from Trezevant. Several out there building trucks this winter or really beefing there's up for next year. It's true what they say, "You hook, your hooked!"

 

[WadePatton]

Hey Gap, that was Robert in the Duramax at Michigan City. He's experienced at the hook, just going to try it with 6 lil' ole cylinders this time around.

 

[Piston Slapper]

Originally posted by WadePatton

Hey Gap, that was Robert in the Duramax at Michigan City. He's experienced at the hook, just going to try it with 6 lil' ole cylinders this time around.

I remember him! Very impressive truck. Dmax impressed me for sure. Welcome aboard Robert!



I was the white 2wd who couldn't pull it!

 

[CumminsDZL]

Hey Wade, when did you make the new purchase. Give us some details on the '95.

 

[TN farmer]

Thanks for the welcome even though I still own the Dmax.



I like pulling the chevy (kinda like being the underdog) but I wasn't comfortable pulling my daily driver.



I feel like I am going back to school to learn how to upgrade this 24V, it's just going to take more than a box, intake, & exhaust like my chevy has.



But I am excited about building my Dodge I think everyone needs to have a truck with twin stacks, just wouldn't look right on the chevy cause there is no smoke rolling out.



Robert

 

[Ryan]

I am running an Edge Comp and Bully Dog 4 injectors. With the stock turbo driving the truck empty and doing a hard accel I could push the EGTs to 1400 and they would have kept climbing if I didn't let out. I have since upgraded my turbo to a Hybrid HX55/50/40 that I got from JR Adkins. It bolts directly to the factory manifold. The highest EGT I have seen with it is 1350 with the pedal shoved to the floor while climbing a steep hill, it is waste gated and set at 40psi right now, stock head gasket, and will clear up all of the smoke.



I do not know what my HP # is, I have not had a chance to dyno the truck since the new turbo was installed.

 

[Piston Slapper]

Originally posted by Ryan

... will clear up all of the smoke.

You know what that means, You don't have enough fuel!!



Robert, Alot of Hp junkies here for sure! Always somebody here to talk you into something you need ! 24 valves are easier for the fact that you can plug a box up to it. 450+ HP with a decent box and decent injectors. Then a bottle to get here spool'n quicker, which you wouldn't know nut'n about that... Real easy to get to 500 HP. It's the once you cross that 50 Lbs of boost/head gasket issue. Then, because you got it apart, O-ring/Fire Ring, head port, and cam. Now, while you got the Exhaust housing off, you might as well put on a big one. Be nice now to bolt that "Big" turbo on while we got it apart. Now that we got more air, we can get them super duper shower head injectors. Just like that little bunny, the bomb bug keeps going and going... .

 

[TN farmer]

Piston Slapper said



"Then a bottle, which you wouldn't know nut'n about that... "



My chevy has been said to have drugs every since I beat every Ford and most of the Dodges. I wish I had known that night in MS at the pull I would have left the hood up all night for everyone to inspect. I run a single box I bought from Nick that is 125hp,

AFE, 4" exhaust and this yields 375 rwhp/ 800 tq.



Robert

 

[Piston Slapper]

Just picking at ya man! The DMax does well regardless. Enjoy meeting ya. We'll be back at Michigan City again. I don't think I'll be pulling it again with my 2 wheeler but dad will be there with the 95 that looks like Nicks again. When been wrenching on it preparing for the showdown.



Any help with your new found we'll be glad to asisst. That nick is a stinker ain't he? We got to soot him good the other day. He was on his way to my dads house in his silver truck and dad passed him and blow smoke on him!! Gotta love them stacks!!

 

[Snow man]

Robert, I suugest you replace the turbo,I would spend any money on a 16 housing. At 450hp you simply need more air. An HX40 or KS B1 would be my choice. if you had the money Id get the b1. By running the stock turbo you are going to see high egts which hurr engien life,and towing you will have to wacth the guage like a hawk and back out of it on hills. I recommend KSB1drag comp,and DD superemntal injectors. from my experience the supermentals do not smokeny more than dd3s,the EGTS are very close,but the make a little more power.

 

[WadePatton]

Originally posted by CumminsDZL

Hey Wade, when did you make the new purchase. Give us some details on the '95.

More of an acquisition--it's Pop's truck, but he bought a car, and doesn't drive it anymore--of course next time he drives the truck he might not want to give it back. We're building it for local pulls and farm chores.



Details: 160-pumped auto, 3. 54, Club Cab with plans for bigger injectors, turbo housing, and timing adjustment next.



Now working on the boring stuff like fuel sender, gauges, etc.