2nd Generation Dodge 24 Valve Powertrain

I installed my old 50hp injectors that came out of my old motor, they only had about 10k on them. Anyway something was not right, you could thighten them a little and it would change the way the motor ran, loosen them and it would go back. So I decided to clean up my old original (200k) injectors, that was a hilarious event, first I lost a shim, looked for about a hour and nothing, gave up and decided to swep up the floor and bingo found it. So I get back to the job at hand and now I forgot which one it went in so I just guessed. Decided I better go have them tested, and wow I got it right But they came back and said they are all weak. I am pissed now, I aint paying th…

Checked out mopars video on cleaning injectors and had one question, he did not say anything about having to have the injectors pop tested after cleaning so I'm doubting they need to but I thought I'd ask before taking mine apart. Thanks for your input guys!

I am looking for RV275s and both Vulcan and DAP have them on their site with some differences. Can anyone tell me if these are the same and if so, why the price difference. DAP-The price is $345 and a $100 core charge will be added to that. This also lists as "marine", is that not usable on my truck? It comes with an installation kit, (Injector connecting tube removal tool/nut, copper sealing washers and O-rings for the connector tube). Are those O rings for the cross over tube, is that the same thing? http://dieselautopower.com/bosch-new-injector-rv275-marine-300-40hp-432193635/ Vulcan-$424.99 plus $200 core charge will be added. This doesn't show as marine…

Hey i am new here i am in the middle of swapping my injectors from 7x.012 to stock injectors since i dont think i need that big of injectors on a stock engine and its been having hard start issues the truck has 205k miles and 1,3,4, and 6 Connector tubes look like this and i havnt seen any pictures of them that look this bad just wondering if this is normal? Truck is 01 2500 6spd HO

I was looking at pensacola 50 hp injectors or Diesel Auto power 100 hp injectors any thoughts?

Hey guys - replaced my injectors 1x with ISX holding my hand (where's the "flower" icon ) anyway Thinking of getting rid of my RV275's and going to +75 => +100HP ...... together with hx35/hx40 hybrid. That with my methanol/water kit should bring right at 275->425 HP which is as far I as think I should go without new headstuds/bigger turbo. So thinking a couple things. (1) What you think between full injector replacement or just nozzles ?? (2) Think of these http://www.cumminsperformanceparts.com/cpp-injectors.html + 100HP and http://www.dieselautopower.com/product_p/35-fslash-40%20turbo%20budget.htm or something else in some price point ? I haven';t …

So I've been doing research lately, and had a sneaking suspicion that I had a leak somewhere after my injection pump. After looking hard, sure enough #5 fuel line was slightly wet. I said screw it and ordered an injection seal kit from thoroughbred (I think), and while I was at it I broke all the injectors down, soaked them in naptha, cleaned them more with b12 chemtool, then reassembled according to spec. With the new washers on, I've popped all them in by hand, set the crossover tubes in by hand, and now I'm about to torque the injector hold down clamps. The injectors are sitting higher than normal, is that normal? I figure the new copper washers haven't been seat…

So, I decided to start a new thread on this. My truck has been running like crap since I installed my 100hp ddp injectors. I know they set the pop pressure at 290, which is low. But when it's idling, or driving under light throttle it almost sounds Iike it has a fuel knock. Not sure what is going on, but is there any reason why I can't pull them and set pop pressure to 320? Not sure if this will help or not. They are really smoky, which is the nature of them I guess, but it leaves a slight clearly visible haze even driving under lite throttle, so not sure if there are other underlying issues. Truck does have a airdog 100 and a new vp.

So as I'm chasing down this fuel leak, I was poking around under the hood just to make sure I didn't miss any obvious leaks or that nothing new happened. Well I got to looking more closely at the injector line bolts and it looks like some are threaded on more then others. Here's some pics theres not leaks or wetness anywhere and last I checked, they're pretty tight. Is this normal or should I pull them off and check for something? I don't really want to ignore this, but at the same time, I don't want create a new problem.

I'm having trouble removing the back 3 injector lines. Not from the head but the brackets holding them down on the deck. Do I need to remove the engine lift bracket to do this, because those bolts wont budge. Where exactly are these bolts located that hold down these lines? Thanks

My truck (99, 2x4, auto, quad cab), is fixing to spin 200K & it occurred to me that I have not done any maintenance on the injectors & I was wondering if there is a cleaning/maintenance interval on the injectors. Is there such a thing as injector Maintenance like there is for Gasser injectors (cleaning, flowing, etc)? Yea I know they are different critters, but they do have similarities. thanks Bob

Had DAP rebuild some injectors with 150 nozzles. I got the injectors in a trade that were supposed to be 200's. The numbers on the nozzle are DSLA 150 P 755, and a 77103 with 939 below. It's not a big deal, I was just curious if these were actually 200s. The notes said all 6 old nozzles were leaking anyway.

I just ordered some 100 HP nozzles and picked up some stock injectors for a swap. I can't seem to find any good write ups/instructions for swapping the nozzles, torque specs, tips? Maybe 28 ft-lbs? Seems pretty straight forward but any help would be appreciated, thanks.

I saw somebody post a question about injector nozzles. It would seem that the more you can atomize the fuel when it comes out of the injector the better. I am looking at the Bosch 40 horse or 50 horse injectors. Are the nozzles on these injectors adequate? What increase in hp are the 275 injectors? Not sure what the nomenclature of 275 means here. Is there a reason to save your old injectors? Can they be brought back to life with pop testing and new nozzles?

Injector pop pressure and it's possible affect on mileage is a subject I have not seen discussed on the forum.Does the pop pressure of the injectors affect the atomization of the fuel enough to have a noticeable effect on fuel mileage?I suspect that it does.I'm on the third set of injectors in my truck trying to get a good balance between towing power and economy.I also realize that today's fuel is not as good as the fuel a few years ago.On the stock injectors in 2004 I was getting great mileage. Then I got a set of +80 injectors using the stock ones as exchange. Mileage went way down hill. I have since put in RV275 injectors and gained some of the mileage back but it sti…

In the next couple of weeks I'll be pulling the failing transmission out of my truck for a rebuild, and while its out I want to upgrade the injectors. I'm not looking for anything crazy just a nice towing injector, so between the 50 and 75hp rating. I realize that power all revolves around other mods, but take for example 75 horse injectors. Are they in fact good for at least 75 horse?

Well gang I figure I do a simple little show and tell of the 24V injectors for ya... Here is a stock 24V injector (235 HP) Now lets break it down into pieces... (Body, spring shim. spring, pintle seat, mid-body, pintle, nozzle, collar nut, and the copper shim) Ok some people don't understand how small the nozzle holes are... Here is a 10x Mag of the nozzle tip. With and Without pintle in the nozzle take notice to the upper hole that is the fuel hole. This hole routes the fuel down tip so it can push the pintle back against the spring when the pressure over comes the pop pressure of the spring. Here is the pintle needle... …

I have been wanting to do some reworking of my return line setup (stock 12V setup) and it's just a little weird. Now my question is, do the 24V's have the return for the injectors going straight back to the tank or do they somehow end up back in the inlet side of the VP44? I don't even remember seeing any return line things on the 24V injectors so did I miss something or what? The 12V engine dumps the injector return fuel straight into the fuel filter, so the whole return line setup remains at inlet side pressures. The only return line that has no pressure (goes to the tank) is the one on the P7100 that dumps excess fuel from the lift pump. Basically I want to get ri…

All right, I ordered a new set of RV275 injectors and feed tube o-rings from DAP. They will be here tomorrow. I got all my old injectors pulled today. It was actually fairly easy, I had figured 5 and 6 were going to be a pain but they weren't. I can return my old injectors for a $100 refund but I was thinking about keeping them for a spare set. I decided to go ahead and take one apart tonight, and noticed there were two washers inside the injector above the spring? I've never taken one apart before, but isn't there only supposed to be one washer? Do you think the second washer has something to do with pop pressure? Injectors wore out? Also, just to make sure I hav…

Quick question for you injector experts. If I have read it correctly the “stock” 2002 Dodge truck 24v engine is rated at 235hp and the injectors are 7 x .0079? I have a “stock” industrial 2002 24v engine rated at 260hp and I pulled out 6 x .008 injectors. Can somebody explain to me how the “stock” Dodge truck engine makes less horsepower with larger injectors than the industrial engine does?