Injector Nozzle Upgrade?

[daboostcreep]

For those of us who would prefer to keep our perfectly good working injectors in that condition is a nozzle upgrade an option? I noticed both DIY and Diesel Care sell nozzle upgrades. Diesel Care says you can get 100hp from their nozzle upgrade which to me seems it can be a simple and somewhat worry free upgrade. Im a bit leary of pulling injectors apart or for that matter having them pulled apart. Can anyone comment on possible power gains from nozzles, and if nozzles make a difference enough that the current HPOP wont be able to keep up making it a moot point?

[Soaggydogg]

If you have a 99+ truck you have split shots and I would not put nozzles on them without making them single shots. The HPOP won't keep up in stock form let alone modified.

If you have perfectly good working injectors doesn't mean they will be once
you tear them apart and replace the nozzles.

I would make them single shots before replacing the nozzles.

[strokin_early_99]

You can not make an additional 100hp by taking a stock AD injector and put different nozzles on it. Like Soggy said, That is how a 160-180cc single shot injector is made from and that adds 30-50hp. Performance Injectors for 7.3L Ford Power Strokes

You need a set of modified A codes to make 100hp over stock.

All the above info is for single shots, of course.

[daboostcreep]

I want power/reliability with as little invested as possible (don't we all)

Im thinking rebuild the turbo with a fresh wicked wheel, and non wastegated 1.0 A/R exhaust housing.

Also get my stock early 99 injectors 120cc converted to stage 1 (160cc single shots no nozzle upgrade) $700 range vs. $1200 range. PS truck is needing glow plugs so it only makes sense to do something with the injectors when I crack it open.

I guess the big question is will the single shot conversion make a big enough difference that the upgraded nozzles arent really all that necessary? Ideally I would upgrade at the most to a 17* HPOP but only if necessary.

I already have turboback, 6.0IC, Water Meth, intake, TW chip, John Wood valve body, crossover hose, and Dino Fuel Alternatives kackle cure kit (poor mans regulated return)

[CoalRollinRoosterCruiser]

What year is your truck?

[Soaggydogg]

Originally Posted by itsaleftlanething

What year is your truck?

I am guessing but...

Originally Posted by daboostcreep

...Also get my stock early 99 injectors...

Early 1999

[CoalRollinRoosterCruiser]

Originally Posted by Soaggydogg

I am guessing but...






Early 1999

Can't believe i missed that.

[Soaggydogg]

Originally Posted by daboostcreep

I want power/reliability with as little invested as possible (don't we all)

Im thinking rebuild the turbo with a fresh wicked wheel, and non wastegated 1.0 A/R exhaust housing.

Also get my stock early 99 injectors 120cc converted to stage 1 (160cc single shots no nozzle upgrade) $700 range vs. $1200 range. PS truck is needing glow plugs so it only makes sense to do something with the injectors when I crack it open.

I guess the big question is will the single shot conversion make a big enough difference that the upgraded nozzles arent really all that necessary? Ideally I would upgrade at the most to a 17* HPOP but only if necessary.

I already have turboback, 6.0IC, Water Meth, intake, TW chip, John Wood valve body, crossover hose, and Dino Fuel Alternatives kackle cure kit (poor mans regulated return)

If you want to talk turbocharger open another thread so we don't blow this off topic.


I don't think everyone needs big oil but at minimum you want a good/new 17* HPOP. I did big oil on my Ex with stock injectors and didn't notice that big of a difference. I have since change my stock AD's out to singles stock nozzles and didn't notice that big of a difference. However, my 95 has went from 90cc injectors to stage 1's/160cc to 235cc hybrids. So the truck is lighter and alot faster than the heavier Excursion.

[daboostcreep]

Seems like splits to singles with no nozzle upgrade with an extra 40cc of fuel in these trucks should account for a decent amount of noticeable power. Look at the diff between stock AA's and AB's (90cc vs. 120cc). 30cc seemingly makes a world of difference in every way. As well as from what people say the diff from AB's to AD's (120cc vs. 140cc) is very obvious in stock trim and thats only 20cc (half my proposed upgrade to singles without nozzle upgrade)

[CSIPSD]

Originally Posted by daboostcreep

Seems like splits to singles with no nozzle upgrade with an extra 40cc of fuel in these trucks should account for a decent amount of noticeable power. Look at the diff between stock AA's and AB's (90cc vs. 120cc). 30cc seemingly makes a world of difference in every way. As well as from what people say the diff from AB's to AD's (120cc vs. 140cc) is very obvious in stock trim and thats only 20cc (half my proposed upgrade to singles without nozzle upgrade)

Anyone that told you there was a SOP differance in power from AB's to AD's is lieing.

And the problem with going from AA's to AB's or AD's is HPO volume. You will loose HP and gain smoke throwing a set of AD's in a truck built for AA's without adding a 17 degree pump...

Single shot is the only way to go.