Pilot Injection

[SickStroke6.0]

Been looking at FICM Tuning recently, and supposedly Bill can tune it to have the old pilot injection feature back in our trucks. I loved it when mine had it, but is there any ill effects on the engine, specifically the injectors?

[SickStroke6.0]

[harley1rocker]

Originally Posted by SickStroke6.0

they got rid of it because it idled like crap...i think,if i remember correctly...thats the ill effect im thinkin of

[PGreenSVT]

Yeah, well you are firing the injectors more often so i guess that is more wear and tear on the injectors and firing them twice per cycle instead of once I expect would shear the oil twice as fast.

My understanding is Ford got rid of it because oil couldn't fill the injector fast enough to fire right twice a cycle. I suppose a 5w30 would help that significantly as well as the shearing issue.

[pizza pig]

good question, not sure; i dont see why it isnt possible. It would be nice to have a quieter idle.... but i like my diesels loud, my brothers duramax doesnt even sound like its running next to mine

Mitch, dont you think a regulated return or an airdog would be a necessity for PI?

[PGreenSVT]

Originally Posted by harley1rocker

they got rid of it because it idled like crap...i think,if i remember correctly...thats the ill effect im thinkin of

Yeah, see my statement above. That's why it idled like crap.

[PGreenSVT]

It's easier to do pilot injection when your piezo injectors are capable of firing 5 times/cycle.

[SickStroke6.0]

Originally Posted by PGreenSVT

Yeah, well you are firing the injectors more often so i guess that is more wear and tear on the injectors and firing them twice per cycle instead of once I expect would shear the oil twice as fast.

My understanding is Ford got rid of it because oil couldn't fill the injector fast enough to fire right twice a cycle. I suppose a 5w30 would help that significantly as well as the shearing issue.

I see. Well I'm switching to Rotella T5 10W30, would that help?

Originally Posted by PGreenSVT

It's easier to do pilot injection when your piezo injectors are capable of firing 5 times/cycle.

And so if I swapped oils, and added an AirDog 2 then I could technically run it safely?