LMM: bigger injector experiences???

[Kappa9012]

Need your opinions and experiences.

I have 60% over exergy injectors and my balance rates are all pretty tight so I don't suspect the injectors, but I need your opinions.

First for the easy question, for everyone running hogged out injectors is your DIC very close on fuel burn after it was retuned?

second, and the more important question, over all the smoke is extremely manageable, but as the temperatures have warmed up I notice a pretty good haze at idle. So how much smoke is expected? Am I being to picky to think at idle it should be clean with these injectors?

 

[2005LLY]

My DIC is always a little lower on fuel mileage and I too have noticed a lot more of a haze at idle

 

[catman3126]

Who tuned for your injectors? what pressure is it running at idle to take the smoke away you will need to run higher pressure to atomize the fuel with the bigger injectors. what egt's are you seeing?

 

[2005LLY]

My rail pressure at idle is 8900-9000 psi, and my egts are 1500-1600

 

[hondarider552]

That's a lot of rail at idle.. Mine idles at 6200

 

[Harbin_22]

Mine does not haze at idle but stink a bit with my MFE 60%. My rail is at 45 MPA. My mileage is fairly close if I drive normal, but if I am in it a lot, it shows less mpg then I am really getting

 

[Ne-max]

Mine has a slight haze also. Will have to check rail pressure at idle tomorrow

 

[blk smoke lb7]

Mine haze at idle


I can make the town disappear at wot till the turbos light

 

[BLKLMM]

That's a lot of rail at idle.. Mine idles at 6200

U don't wanna know mine

 

[Kappa9012]

lol lets not get it twisted, at wot she'll smoke, but with a stock bottom end she's not blowing balls out like some, but once the tubros light it's not bad. I haven't logged it yet to see what kind of rail it's running at idle, but it holds rail pretty tight at WOT.

How far off is your DIC? I'm in the 15% neighborhood, and I've been trying to keep my foot out of it to see if it's my driving or something else.

 

[S Phinney]

Mine run cleaner than stock with 100 overs at idle. I run 42 MPA at idle. DIC usually is not that close after tuning. You could take the time to make it more acccurate but what is the real benefit? Your hand calculated is not going to change.

 

[Kappa9012]

I do still hand calc, I just like to know approximately how much volume is in the tank.

 

[blk smoke lb7]

I do still hand calc, I just like to know approximately how much volume is in the tank.

That goof DIC seams like its never close to accurate. I go by the gauge and always fill up at 1/4 tank and hand calculate for mileage.

 

[skintback]

Very very loud it runs good and no smoke at idle but dang they are alot louder than stock and yes the tuning has been changed running 45 over tips from extrude hone the injectors where brand new bosch when it was done as for the dic i don't even look at it thinking to have the other company flow/balance them out to 100% will see hope they don't get any louder thats my luck :rofl:

 

[Kappa9012]

just an update, new born showed up middle of august so i had to put this on the back burner.

I logged the truck at idle and it was running around 4300 psi rail pressure and constant visible smoke and heavy fuel smell. used EFI to override rail pressure until it cleared up. Pushed the rail up to around 5700 psi and she is happy as hell now, idles smoother, no smoke, quieter, and significantly less smoke.

Rob kicked out a tune for me immediately and problem solved. So idle smoke on bigger injectors can be corrected.

 

[catman3126]

good deal