First off in new to the forum. I have an 86 F250 6.9 4x4 c6. With a gearvendor on it probably getting a turbo soon. My question is though I now aftermarket parts are few and far between but does anyone make nozzles not injectors but nozzles with a better spray pattern to atomize the fuel better?

 

Read Racin's "project smogie" build thread, last few pages have excellent discussion of injector nozzles, pop pressure and spray pattern. Whole thread has awesome performance info, worth the read. PM him for parts sources etc. Welcome to the forum!

https://www.ford-trucks.com/forums/1...idi-build.html

 

as far as i know, nozzles aren't usually sold by themselves, its the whole injector. if yours aren't atomizing well enough, its probably because the injectors and the IP are just worn out.

 

Thanks for the info. That truck is sick... I think mines due for a build . Also I figured no one made just nozzles but thought I'd ask

 

if you don't already know, you can buy a whole set of injectors for 2-300 bucks, so if doing just nozzles is a cost cutting goal, forget it. it its a fine-tuning performance goal, follow the link posted right above my post above

 

No its not so much cost cutting I was just trying to get a little more power really. Thinking that if the fuel atomized better it would help a little. Also i was thinking of finding some 7mm 5.9 12v nozzles the are the same size with a better spray. Just the 5.9 nozzles are slightly longer. have to see if they have a different application were they are shorter. Stupid ideas I know but I had a 6.9 nozzle and a 5.9 and that was the only difference

 

Spray pattern is not very important in an IDI that mixes air and fuel in precombustion chamber cups. If you want more power you will have to turbo it. Depending on how far you want to go with it, you may need an upgraded IP, intercooler and cam grind... and head studs to hold it all together. But bottom line is if you are not happy with current power output you need to get some kind of turbo kit in there before you tackle anything else. Your stock pump and sticks can already deliver more fuel than you have oxygen for. That's your bottle neck. Period. Get more air=turbo...

 

well, it would be wise to start by getting the timing set properly, as thats one of the most neglected things on these engines it seems. doing so requires the ferret timing adapter, which runs you 2-300 depending on where you buy. once its timed right, it'll be making all the power it can for the airflow it has. any more power requires a turbo
remember f834, the OP is new around here and hasn't read a hundred threads about timing like you and i have

 

Good point Josh, I made the assumption that since he was wanting to tweak injector internals that he was beyond timing, but not necessarily so... especially with all the mis-information and crack pot timing "methods" out there. Definitely important to have that right! Huge power killer if it's out of time...

 

That is true. Thats how I got the truck in the first place the injection pump gear was a tooth off and the truck wouldn't run. Oh and the truck is getting a turbo I'm putting a first gen powerstroke turbo on it. The ones that only built about 10 psi.

 

If youre familiar with cummaparts, that would be even more reason to go with an hx35. Going to treat you alot better than that 1.1 ar non gated garret

 

^^^That...^^^

Powerstroke turbos are not very good on an IDI. Even if you have one that won't cost you anything, it's probably not worth the hassle of making it fit on your truck. Holset turbos are fairly affordable and available and work well if you can fabricate the pipes and oil lines (not any harder than retro fitting a PSD turbo). There are some good threads on this forum of what others have done.

 

i would say the hx35 is way easier to retrofit to our trucks purely because of there 360 degree housings...that right there makes for ease of installation and i love mine...

 

My turbo is going to be a remote mount turbo under the bed so mounting is not an issue really

 

In that case. Really dont use the stroke turbo, it would never spool lol. Since you have all the room why not a VGT? Theyre cheap if you can find em. Personally im not a big fan of remote mount, which is why i went with the hx35