Added 30% and still LEAN.. any ideas?
06-17-2024, 05:29 PM
#1
Added 30% and still LEAN.. any ideas? Seems crazy lean. Tune and log attached as well as video of fuel pressure
5.3 L33
trick flow heads
ls6 intake
id1050x injectors
hellcat pump
d1x procharger
speed density with 2bar map
currently open headers and open TB just trying to get baseline but didn’t see much change after 30% fuel increase before attached log
5.3 L33
trick flow heads
ls6 intake
id1050x injectors
hellcat pump
d1x procharger
speed density with 2bar map
currently open headers and open TB just trying to get baseline but didn’t see much change after 30% fuel increase before attached log
06-17-2024, 06:50 PM
#6
I had a reputable tuner put in and confirm my injector data, that’s why I was questioning it. Not trying to be a pain at all, just trying to get on the right track. I’ll run your changes and check back. Thank you so much
06-17-2024, 06:59 PM
#7
That tune was set up for 60'ish lb injectors and a returnless system
The ID1050x flow 109lb/hr at 4 bar pressure.
With a vacuum referenced FPR, the flow rate needs to be the same because the FPR lowers the fuel pressure w/ vacuum to keep the differental pressure the same. In a returnless system, where the fuel pressure is a fixed pressure, the PCM takes care of it.
I'm not sure why the injector flow rate vs voltage was changed. I don't remember ever seeing that table anything except 1.0
I also changed a value in the transient fuel section, normally with big injectors if you don't, it will run rich no matter how much fuel you take out.
The ID1050x flow 109lb/hr at 4 bar pressure.
With a vacuum referenced FPR, the flow rate needs to be the same because the FPR lowers the fuel pressure w/ vacuum to keep the differental pressure the same. In a returnless system, where the fuel pressure is a fixed pressure, the PCM takes care of it.
I'm not sure why the injector flow rate vs voltage was changed. I don't remember ever seeing that table anything except 1.0
I also changed a value in the transient fuel section, normally with big injectors if you don't, it will run rich no matter how much fuel you take out.
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06-17-2024, 07:05 PM
#8
Also something i just noticed, the MAF isn't failed properly. P0101,102,103 needs to be set to report on first error.
The boost PE table needs to be set up. It's all 1.0
That timing table is going to blow your engine up too. That's for a NA motor, and will boost you are going to max out that air mass quickly which is going to put you at 26 degrees of timing in boost.
The boost PE table needs to be set up. It's all 1.0
That timing table is going to blow your engine up too. That's for a NA motor, and will boost you are going to max out that air mass quickly which is going to put you at 26 degrees of timing in boost.
06-17-2024, 07:07 PM
#9
That tune was set up for 60'ish lb injectors and a returnless system
The ID1050x flow 109lb/hr at 4 bar pressure.
With a vacuum referenced FPR, the flow rate needs to be the same because the FPR lowers the fuel pressure w/ vacuum to keep the differental pressure the same. In a returnless system, where the fuel pressure is a fixed pressure, the PCM takes care of it.
I'm not sure why the injector flow rate vs voltage was changed. I don't remember ever seeing that table anything except 1.0
I also changed a value in the transient fuel section, normally with big injectors if you don't, it will run rich no matter how much fuel you take out.
The ID1050x flow 109lb/hr at 4 bar pressure.
With a vacuum referenced FPR, the flow rate needs to be the same because the FPR lowers the fuel pressure w/ vacuum to keep the differental pressure the same. In a returnless system, where the fuel pressure is a fixed pressure, the PCM takes care of it.
I'm not sure why the injector flow rate vs voltage was changed. I don't remember ever seeing that table anything except 1.0
I also changed a value in the transient fuel section, normally with big injectors if you don't, it will run rich no matter how much fuel you take out.
06-17-2024, 07:14 PM
#11
Also something i just noticed, the MAF isn't failed properly. P0101,102,103 needs to be set to report on first error.
The boost PE table needs to be set up. It's all 1.0
That timing table is going to blow your engine up too. That's for a NA motor, and will boost you are going to max out that air mass quickly which is going to put you at 26 degrees of timing in boost.
The boost PE table needs to be set up. It's all 1.0
That timing table is going to blow your engine up too. That's for a NA motor, and will boost you are going to max out that air mass quickly which is going to put you at 26 degrees of timing in boost.
now it’s full built/balanced bottom with different heads, blower cam, and bigger injectors … and (unhooked) procharger.
trying to get it running for testing purposes right now, not to drive or boost whatsoever yet.
would I be better going back to a stock silverado tune and doing the SD and injector changes?
can I PM you maybe? I can pay
