Engine/Transmission (1998.5 - 2002) injector box combo

[Cowboy Medic]

I am very much leaning towards gettin the RV275 injectors and an edge comp box. I will of course be getting the gauges as well. My decision is mostly based on the different things I have read here. I really like the controls and mounting options for the comp, and will be planning on the triple pillar mount for the gauges.



1. What kind of power can I expect roughly?



2. any other injectors and why? my understanding

with the 275's is they are really good for towing and the EGT's should be an almost non-factor, which is something I really like the idea of.



3. My understanding with the comp is that on lower settings I can supplement my pulling power but will have to be a little more aware of EGT's and then when I am empty I should have plenty of power to play with. Am I pretty well correct on this?

 

[BIG BOB]

I have a Drag Comp and BDIII's. While towing my 28' travel trailer up steep mountains, I can turn off my comp and run with my foot to the floor and only reach 1200 pre-turbo.



I would go with at least BDII's or DDII's.

 

[HVAC]

III's

I agree with BB. I tow with III's and have no problem with egt's towing 10,500 lbs. Injectors produce a wide powerband with a solid 80 horse improvement or better in the case of the III's. We even see 1mpg to 1. 5mpg mileage improvements sometimes. You can pick up a boost module cheap and stop right there if your on a tight budget. That's all you need to tow your boat or whatever IMO.

 

[jwilliams3]

1. About 325-350hp at the ground w/275's and Comp.

2. You can tow with bigger injectors but 80hp is about all I would go (so you can still use the box to some extent).

3. Yes, you are correct.



I would also advise a heat shield on your stock turbo (larry b's),

this will help with egt's during the summer months to isolate heat from re-entering the intake system.



--Justin

 

[LSMITH]

I will third the recommendation for the stage III injectors. By the time you get even close to the same amount of power out of a wire tap box EGT is getting scary. Level 3 injectors are PLENTY of power for any and all towing and you don't need thousands of dollars in mods to use the power. You will have more useable power while towing with the DD3's than you will with the 275's and a Comp.

 

[TURBOs4LIFE]

I'll 4th the DDIII's! I just installed mine and love them! I am glad I made the right choice. Woooohoooooo I just got my PDR-HX40 installed today... . Man what a difference... . Sorry I just had to tell someone!Oo. Oo. Oo.

 

[jwinnie]

I installed DD II's about a month ago and noticed no difference in egt's while towing my 7k trailer at normal speeds. very nice power but if I could do it again I would go for the III's. I should have listened to you guys Hey, at least you can say I told you so!!!

 

[csevers]

just dynoed

275" injectors comp on 5x5 k and n in stock box and turbo to tail 4inch exhaust got 361hp max same with 3x3 on box 317hp more that I know what to do with but I want more? go figure!



check sig

 

[MikeR]

Instead of installing 275's and a big fueling box, I would recommend big injectors and a small timing box box, which is the same as what the others above me are saying.



Why?

At this power level, bigger injectors do not casue strain on your injector pump, neither does a timing box. Egt's won't me much different than now. Better driving manners.



Big fueling boxes tap into the pump solenoid and are hard in injection pumps. Egt's will be higher.

I dont know if you're ready to buy a new cluch yet, but the big box is going to destroy your stock clutch almost immediately... you can get at least get a few more miles left out of it with the other power combo.



-Mike

 

[Diesel Freak]

Originally posted by MikeR

Instead of installing 275's and a big fueling box, I would recommend big injectors and a small timing box box, which is the same as what the others above me are saying.



Why?

At this power level, bigger injectors do not casue strain on your injector pump, neither does a timing box. Egt's won't me much different than now. Better driving manners.



Big fueling boxes tap into the pump solenoid and are hard in injection pumps. Egt's will be higher.

I dont know if you're ready to buy a new cluch yet, but the big box is going to destroy your stock clutch almost immediately... you can get at least get a few more miles left out of it with the other power combo.



-Mike

Mike hit the nail on the head!



I am running DDIII's and a timing box. I have more power than I could ever safely use while towing..... and no EGT problems!

 

[JTroiano]

Don't waste time and money. Get the DD3's and the comp now. You will not regret it!!!

JonT

 

[JLinder]

I HAD an EZ and DD II's for a short while. Pretty impressive, but I got bored with it soon and opted for a Comp box. Results? I dyno'd 435 hp in Spokane, and I've towed 16,700 lb with comp on level 1x3 and had no problems with EGT's. Granted, I did keep an eye on the pyro and did have to back out once. But that was a 9% grade hill for several miles, and I was pulling at 60 mph. Backed down to 55 mph and it cooled off enough. This was on a 95 + deg. day.



I also have a 4" exhaust and an AFE mega cannon.



All depends on what you're looking for. If you aren't the type to always want more, then the EZ and some DD III's should do the trick. If not, then BOMBS AWAY!

 

[Cowboy Medic]

all right, so if I go with the DDIII's do I have to have the timing box right away, in order to use them. Part of what I am looking at is I was thinking of doing the injectors at christmas and then the comp next summer. but I do want to do things right. This truck belonged to my dad before he passed away so it is important to me that I not step too far out of line. I want to be driving this truck many, many years from now. A new clutch is anticipated so that is not an issue, I have the BHAF and will probably just straight pipe the exhaust. I have the 4. 10 gears and actually like them very much as I run the 235/85 tires and it gets me a good mix for empty and loaded. I had originally been planning on the EZ but I really liked the idea of the in the cab adjustability of the comp. I have no desire to go beyond this with different turbo or extensive mods. To be honest I might get just injectors and never go to the box. This truck already does better than anything else I have ever owned. I know you will hear the guys saying you will want more, but I work full time on an ambulance and I am routinely cleaning up the mess people leave when they start treating the road like a race track, so for me this is strictly about being able to hit the interstate and get a load moving maybe smoke a little at some idiot riding my tail, I have no need or desire to be doing a 110 down the interstate. Thanks for the replies so far and I hope maybe what I said will help fine tune the direction I need to go.

 

[ToolManTimTaylor]

ya see I went at it in a entirely different way. (We won't mention the Banks kit I had on for a year loved it but) I wanted more.

Along with my Volant , 4 inch exhaust I started with the Van Aken (got my timing sorted and imediately changed the trucks behaivior) Yahoo



Then DD1's and Dtt trans Yeeahoo.



Loved the DD1's buut.



Peirs hx 35 superturbo. Whew All riight.



Naah I need more Blue Chip Fmc Prem. WoW!



Need more ... DD3's good gawd



More still Pdr hx 40 Ewwkaay I think I am done



NOPE! Oo.



But I went at it the WRONG way. I realize you don't wanna go in the direction of turbos and whatnot. I built backwards in the beginning and then got rollin' right. Timing first in my honest oppinion. Air , then fuel.



I test drove 'round Smoking like a champ just my dd3's Blue chip off , VA unplugged and granted I have a 93% converter that is Tight as He!! to beginwith (Kinda like your manual) and she was a pig and a half. Just the VA plugged in helped tremendously.



So Yeah I say DD3's all the way and a Timing box of sorts. Then when ya want to Rip it up get a comp , Blue chip , Edge , whathave ya. because they can be Stacked.

I'm just babbling nevermind.

 

[jwilliams3]

I agree with the statement above,

Injectors just dont cut it with out a timing box (EdgeEZ or VanAaken).



So, if you really want to stay conservative go with 275's and an Edge EZ.



--Justin

 

[LSMITH]

I am running DD3's RIGHT NOW with no timing box, it is awesome. Power is not as touchy, cruise control works a lot better, smoke is WAY down, EGTs are well in check, and wet roads are not cause for concern nearly as much. DD3's on their own are downright impressive, DD1's need a timing box to set them off. I have about 12K miles on the DD3's, 10K with the VA hooked up and about 2K now with no timing box.



If you add just the DD3's and no box (you HAVE to have a boost module with DD3's though) it will blow your mind. Basically the same power as DD1's and an EZ, but oh so smooth. Driveability is awesome, smoke is not an issue at all. The clutch you have will likely live quite a while as you have stated you are not a hotrodder. The massive torque that eats automatics and clutches will not show up until you have the RPM to tame it a little.



When you get the urge for a little more you can add a timing box, and it will wow you again. The current rage for the comp and the like has timing boxes reasonably priced too.



I really wish I would have gone for the big injectors first. Back in the day the DD3's were considered wild outrageous smokers. 275's or DD1's and a timing box was the rage as there was only the blue box or the power edge if I remember correctly for big boxes and you had to be out of control to have one of those LOL. The turbo and intake options we have now were not available, so you had EGT trouble period if you went with a big box. I have spent a lot of money and tried a lot of whiz bang gottahavits over the last couple years listening to the "this box is the greatest" guys. Big injectors is where it is at for me. Smooth USEABLE power sure is nice.



BTW, the DD3's have not hurt my fuel economy at all unless I rag on it either.

 

[Chipstien]

Another DD3 believer. I have the Comp also but the only time it is on is when I am playing. For everyday driving you will not need any more and EGT's are a non-issue. Then if you want more you can go with the Comp at a later date.

 

[BIG BOB]

If you just get injectors now and no box, you will need to get a Pratical Solutions Boost fooler to increase your boost the get the most out of your injectors.

 

[SOOT]

I put DDII's in my Mom's truck (see sig) and with out a boost fooler I could not get past about 2700 RPM's in 4th and 5th:{ Then I put in a boost fooler and now it will run all the way to redline without a hint of defuelingOo.