So by doing this, will it bring the injectors back to a "like new" condition?

 

squirrels, question?
The yellow Ford / Bosch 19# design III injectors have 4 holes in the injector.
Spray pattern helps with atomization......I know the jeep guys will swap them out for a little better throttle response and control.

Would the 5.2 benefit from the design III?

 

Very interesting... im going to research this now. I would still like to hear what squirrles has to say.

 

I've heard of that swap too, Ford runs at 39psi, dodge at 49 psi so the 19# injectors would be 23.87lbs in a Dodge. That's a slight boost over stock, so I would imagine you'd run a bit rich. I'd be sure to know the measurements of the stock Dodge injectors and compare to Ford's before you buy.

I've also heard that the 2001 Dakota 4.7L runs an injector that has four pin holes and would be a similar type swap.

Better atomization is always a plus. I don't know if it's worth the 300 bucks, but it can't hurt.

It's probably not as good as an injector flushing that a diesel shop can do, but it a hell of a lot cheaper.

EDIT: that's a 2001 Dakota, not 2002, sorry.

 

I talked to hemifever about this a little with my truck. I had the stock 19lbs. injectors with my 408 and I knew I needed larger injectors. I needed to bump up to atleast 24lbs. I asked him if I wouls get worse gas milage tho and this is what he said (remember he is an sct tunner programmer and has and uses a chassis dyno)

I know that the 2000-2002 rams came with the 24# injectors so I bought some of thoes at a junkyard and ebay cheep. The only thing is I had to buy a wiring harness and cut-solider new connectors to fit the 24#ers. If you have a stock motor without an sct be careful about this mod

 

Jbomb's stuff is exactly right. You don't need bigger injectors unless you have more cubes or more boost then the current injector can squirt at 100% duty cycle. Now, more injector spray holes may increase fuel atomization and result in better economy and/or better throttle response. But is that worth $300? Probably not, unless you need to replace bad injectors or go bigger.

 

The reman ones on ebay are about half that cost or lower.

 

http://witchhunter.com/

 

Hey thanks for that link dakotas ram, good to keep in mind if one day I decide to drop a boatload on some injectors.

 

with stock 24# and the truck already running a good A/F ratio. There is probably no need to swap. The Design IIIs are found in many 4.6 Ford Mod motors. THe 19# Design IIIs are either Yellow or Orange. They are found in many car models. Pick em up at a U-Pull -It yard for 5-10 bucks a piece. Throw em in a Jewelry cleaner with seafoam and place new o-rings on them. Inexpensive mod.

I did this in a 4 cyl Jeep with good results. But those motors run lean from the factory.