Engine/Transmission (1998.5 - 2002) Rv injectors

[Silver Bullet Ram]

I've seen 275hp and 300hp. Do they no longer make 275 injectors? What all do I need to do this swap as far as parts go? Best place to buy them?



Gary

 

[gonehuntingagain]

It seems like everyone on E-bay calls them "300's" even though they are still the same old RV 275 injectors.



Pier's still lists them as 275's on his site

http://www.piersdiesel.com/DodgeInjectors.htm

 

[sstockton]

I just put a set in last night, the "300's" I don't know if they are any different than the 275's but I'm happy with them. I get mine from Scott Goff in Utah, -- email address removed -- is his email, give him a shout, I got mine for 295 shipped to my door, with no core charge. I ordered them tuesday and they showed up thursday morning, so I'm happy with that. The swap is pretty easy. I will say this though, I'm used to 12v. And made the mistake of pulling my injector lines all the way off, kind of a pain in the ***, but it gives you a little more room to work (I guess). Doing another set next week in a buddy's truck, I don't think it will take more than an hour and a half. So far I'm pretty happy. Definitely noticed a difference. The truck makes a little smoke now, with it set on stage 5.

 

[Silver Bullet Ram]

Sstockton, are your new injectors Bosch?

 

[Beach]

I heard from TST that the 275 and 300 are the same thing. Some people call them 300 for a selling point. No difference!

 

[C.Solomon]

I just installed a set of 275RV's yesterday. I am very pleased aswell.

I noticed also that some people call them 300's and I have no clue why.

It is my understanding that is will make a stock 215 or 235 hp pickup 275 hp hence the name 275's.

 

[Silver Bullet Ram]

next question will my stock auto handle them?

 

[rluft]

I have them in my truck for 50k miles along with a fueling box and my transmission has held up. I will admit that I have felt the transmission slip when pulling the trailer and I am sure the life of the transmission has been shortened. Also, I don't make a habit of racing around town and abusing the transmission.

The injectors should come ready to install, you may get some orings for the injector tubes in case they get damaged.

 

[wtfd6]

my trans didnt last long after i installed them. i wish i had gone bigger now though. i wish i had gone with dd3's. but anyway, the 275's are ok. they didnt make that big of a difference.

mark

 

[jrobinson2]

They are the same injector, they call them 275 or 300's because they are used in the 275hp RV engines and the 300hp emergency vehicle engines



Dyno graph is here Diesel Dynamics 275 comparison

 

[sstockton]

Sstockton, are your new injectors Bosch?

Yes, Mine are bosch. I don't know about fuel milage gains, but we'll see. I'm happy so far. no problems, no rough idle, I'm happy. I'll go bigger when I do twins. I think they'll be good for towing.

Sean

 

[Mark Craig]

Silver Bullet Ram,



They are the same item, part ends in 635 if it's a true Bosch part etc. It's one of the best mods with an EZ or Van Aaken box or even a Comp. They really shine when you tow with them. We have been sellong them for years and have great results etc. They are NEW not remaned so no cores are required at all.



Mark @ DPPI

 

[McDowra]

Yep I have 235,000 miles on mine. They definately are nice upgrade



shameless plug of 275-300hp injector



Tim

 

[FastEddie]

I just had 275's installed at Oregon Fuel Injection last week along with an AFE intake and 4" exhaust. They called the 275's a "Marine" injector. Probably the same as the "RV" application. What was immediately noticable was smoother idle and smoother acceleration over stock injectors with an Edge EZ. So far I am happy with them and look forward towing.

 

[Silver Bullet Ram]

Are they giving you better fuel mileage? Will my stock auto handle them? I was thinking of backing it up with superchips?

 

[FastEddie]

Injector upgrade domino effect

I need more time to figure out my fuel mileage change if any with 275's. I will know better after a trip to Indiana in mid-March. I have a 5-speed NV4500 and the stock clutch would not safely handle the increased HP combined with heavy towing over 8,000#. I went with a SBC Con-O clutch upgarde on mine to keep the stock clutch smoothness since the truck is my daily driver. All I know about the Auto Trans is they tend to become troublesome over time with the CTD and bombing just accelerates things, literally and figuratively! The 275 injectors perform better with a performance box which leads to the necessity of intake/exhaust/gauge/trans upgrades etc. for everything to work together.

 

[Murle]

Get a Smarty to go with those 275's and you will not be sorry. The superchips and EZ's are old hat... . Smarty is the way to go.

 

[Silver Bullet Ram]

Ok, what is a smarty? That is a new word for me. Do you think I need the new manifolds too? My auto has a 120,000 miles on it, shifts fine as a long as I don't beat on it. I don't tow much.



Gary

 

[sstockton]

Smarty is the new ECM programmer made by Marco at Madselectronics. IT can change your stock ECM to what the catcher was, as well as many other things. I'm looking forward to trying one out in the next couple of months. Anyways, it seems to be the way to go. If I were you, I would install an exhaust and gauges on your truck as well. With my 275's and a Drag Comp, I can hit 1500*, that is running a 4inch and an intake as well. Right now, I'm part way through my first tank on these injectors. I haven't calculated anything out yet, but based on the gauge and the Trip, I seem to be doing a bit better. I should fill up by this weekend, in which case I'll repost with results.



Also, looking forward to towing with them. And I'm gonna turn my box off next tank, and see how it does with just the injectors.

Sean

 

[Silver Bullet Ram]

That marco isn't that the guy who took your old ecm and programmed it and sent it back to you?