More PWR with a BOX or Injectors?

[andrewkoperdak]

I was about to buy a EZ box but then started thinking, maybe injectors would be the best buy for the buck. I am stock with the exception of gauges (boost,egt, fuel). With a standard box I see that I can get about 60 hp. What do you get with a better set of injectors. I don't plan on going on a bombing spree so this mod will probably be my only mod. I have a standard output 5. 9 with 5 spd and I pull my 5th at around 6000 lbs. We have plenty of hills and mountains out here in CA. So a little extra pwr would be nice. Just want to know if I really need to spend 650 greenbacks to have a lil bit more umph.

 

[Bob Wagner]

go for the box

Best buy dollar for dollar would be Edge Comp Box or DD equiv.

 

[fj40charles]

Just remember that Bombing is an addiction. Once you start, you'll want more and more..... I'd go with the PE comp or DDUFM just in case you want more later... .



Charles

 

[jkern]

i was at a truck pull the other day, and pulled against a truck that was real close to mine... stock engine, drive train, etc. same size tires, and close to the same weight. the only real difference was that he had "big" injectors with no other mods, and i have only the fueling box. long story short is that he beat me by 40 feet and pulled in a higher gear than me too.



-jeremy

 

[Jetpilot]

I would recommend the Power Edge Comp... . This gives you the best of both worlds (so to speak). You can run the box on level one and have an EZ or turn it up and have and EZ plus addtional fueling. As far as "bang for the buck" it would be hard to beat.



Good luck,



Doug

 

[LSMITH]

Dollar for dollar the injectors and boxes (Comp and DD3's) are pretty close in horsepower, 120 vs 100. Torque is another story, the injectors will gain you maybe 200 lb/ft and the box will be well over 300. The injectors are lots easier on the drivetrain, trannies, clutches and axles. The box hits HARD lower in the RPM, so it is harder on components but it feels stronger when it comes in harder and lower. The other thing you will not hear many of these guys tell you when they are saying the comp is the ticket is that EGT with the comp in level 3 is gonna be hot, and it only gets hotter from there. Towing it is not useable power in the higher levels. Your stock turbo will support all of the power from 100HP injectors unless towing heavy and hard, even then you will not have to lift often from EGT. For useable towing power buy the injectors, for horsing around hotrodding get the box. If your wallet can take it get both and have ALL the fun. If you only do one get the injectors. MHO, hope it helps.

 

[BillGotthelf]

I like the TST powermax. Its got ten levels and tops out at about 130 more hp. I got injectors (275's) first and do most of my driving with the tst box at 0 until I need it and then I go to 9. Oo.

 

[Archive]

I'll agree I think the box would be better, but up to U. . for the price the Edge Comp or DD box would be better than the EZ and you will have inside control. (or you can look to another brand. ) If you go with the injectors you will need to buy a boost module, as the injectors will be able to put up more boost, and might get a little warm without the added air. . But there have been some cheap used Boost Modules for sale in the classifieds. . (also check there for a box too. . there have been some EZ for a fair price on there too, if the year is not correct give Edge a call and they can fix you up. . ) Good Luck

Bryan

 

[juicedcummins]

I would say the box is the way to go because you can remove it easily for a trip to DC. Or for some reason you sell your truck you can get back some of the $ spent on the mod without the time and labour of pulling injectors.

Can't go wrong with EDGE products as a rule they have a good line and seem to stand behind their products.

 

[Diesel Freak]

If you want useable power, go with injectors. Boxes that give over 100 HP more also have higher EGT than a set of stage III injectors, on the same vehicle. Boxes inject the fuel later in the power cycle than larger injectors. The result of this is higher EGT for the same power level.



and another thing, the only boxes that leave no "physical" trace that they were on the truck are CPC type boxes, and they are only good for abput 40 peak horsepower on an otherwise stock truck. All others will leave a nick on the pump wire.

 

[StakeMan]

IMO, if you tow, go with either the EZ or VA and Stage 1 or Stage 2 injecotrs. If you don't tow go with the PE Comp. Then when the bomb bug really gets in your blood. You'll be half way there.

 

[Roger rodbolt]

LSMITH has it right!!

Originally posted by LSMITH

Dollar for dollar the injectors and boxes (Comp and DD3's) are pretty close in horsepower, 120 vs 100. Torque is another story, the injectors will gain you maybe 200 lb/ft and the box will be well over 300. The injectors are lots easier on the drivetrain, trannies, clutches and axles. The box hits HARD lower in the RPM, so it is harder on components but it feels stronger when it comes in harder and lower. The other thing you will not hear many of these guys tell you when they are saying the comp is the ticket is that EGT with the comp in level 3 is gonna be hot, and it only gets hotter from there. Towing it is not useable power in the higher levels. Your stock turbo will support all of the power from 100HP injectors unless towing heavy and hard, even then you will not have to lift often from EGT. For useable towing power buy the injectors, for horsing around hotrodding get the box. If your wallet can take it get both and have ALL the fun. If you only do one get the injectors. MHO, hope it helps.

AKoperdak,

Please reread the above wisdom from LSMITH. I've experimented with many mod's and combo mod's and totally agree with the above quote... ... ... well said.

 

[Wheaties]

AKoperdak, you didn't mention whether you have an ETH or an ETC. There's some good advice here from other members, but no one has mentioned that the ETH seems to respond a little better to injectors while the ETC gets a bigger gain from the box.



Matt

 

[rspinks]

Has anybody tried just 275's and a boost elbow/fooler on an ETH? As I understand the ETH has slightly hotter timing and/or fueling but smaller injectors than the ETC, so I'm thinking of 275's first (with boost controls) and then a fueling box once I have enough in reserve for a clutch.



For that matter would it make any difference to swap ETC injectors into an ETH?

 

[Mallory]

Will the box give better fuel economy? Also if you just install injectors will the fuel be cut when the boost goes over stock?

 

[BillGotthelf]

Mallory from what I have observed the bigger injectors keep fuel mileage about the same and when I turn on box my mileage drops. I lead footed it around with just the bigger injectors and I get the same mileage I did with stock injectors but I got 0-60 times . 5 seconds faster than stock. (215 vs. 275)

 

[Diesel Freak]

when I first started bombing, I had 275's and a PS boost module on my ETH. I dyno'd at 233 HP to the wheels. It is a good towing combo.



I have heard that 275's are good for 42 RWHP on an ETH. I am not sure if this is true since I never dyno'd my truck when it was stock.



A gain in guel milage is relative to the driving habits of the driver... . if you bomb and you keep your driving habits the same, you "may" see an improvement. If you constantly use the extra power, you milage will suffer

 

[Floor It]

I have a 01 ETH,with the edge-ez box I made 251 hp and 609 tq. After that I put in RV injectors and then dynoed at may-maddness and now it made 322hp ETH's do make more power with injectors than ETC's but I was shocked at a 71 hp increase. I'm gonna dyno at the same dyno that i made the 251hp# and see what is says. Injectors are really great for the ETH's

 

[MikeR]

I always recommend a set of 100hp injectors over a 100hp box.



The boxes are nice since they are adjustable. But boxes cause way high egt's compared to a set of stage 3 injectors and electronics are programmed to kick in and kick out the fuel at certain boost and rpm levels.



Injectors are much smoother during shifts(5spd or 6spd), egt's are not much higher over a stock engine(more useable for towing), and the added power is constant throughout the entire rpm and boost band.



Yes, you will have to purchase a boost module with the injectors if you install injectors as a stand alone hp mod, but they're cheap to find used and easy to sell of if you decide to go with a box later.

 

[PRout]

Either way, you need to get the TIMING ADVANCED.



Thats the ticket for free power for the same mpg's & lower egt's.



If you use a box, make sure it has the timing advance feature (EZ, comp, VA , whatever).



Larger injectors give the affect of increasing timing, but its not enough to lower egt's much.



Its pretty hard to go wrong w/ DD2's, an edge EZ (or preferrably VA for better low rpm pull w/ slightly more smoke), BHAF air cleaner, remove the muffler, and keep the resonator. You'd be in sweet city! Would be one of the best running trucks around.