LS2 Edlebrock E-force tune
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From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
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let me know how you like it! BTW.. work the go fast peddle easy until you get used to the power! Want you making it home in once peace..... 
Watch the butt of the car! It tends to try and pass the front of the car when you play too hard on the gas pedal! You also will have issues trying to wipe that $hit-eating grin off of your face after the drive.
Elmer
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From: Hayward California
May be different for the Gen IV?
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What is "thrown off" when setting this to the correct size? The reason I ask is for the Gen III (LS1\LS6) I haven't found conclusive info saying changing it makes any difference. I expected VE to at least needing to be rescaled or this change to fix something, but so far nothing found.
May be different for the Gen IV?
May be different for the Gen IV?
Apparently the DIC's calculations require information from the functioning tune in the car. Flow rates, cylinder volume, VE tables, who knows what the little monster uses to calculate the MPG & Miles left. It calculates those pieces of data from live data and apparently the misstatement of the values affects the resultant calculation of data.
Elmer
Safety Car
Joined: Apr 2004
Posts: 3,932
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From: Hayward California
Apparently the DIC's calculations require information from the functioning tune in the car. Flow rates, cylinder volume, VE tables, who knows what the little monster uses to calculate the MPG & Miles left. It calculates those pieces of data from live data and apparently the misstatement of the values affects the resultant calculation of data.
Elmer
Elmer
We know something is "off", just trying to get confirmation on exactly what.
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Personally, I've seen injector data having the biggest effect on reflected MPG. Haven't come across anything yet though, for LS2's or LS3's, where cylinder volume affects it. Instead, I've seen VE being used for airmass.
We know something is "off", just trying to get confirmation on exactly what.
We know something is "off", just trying to get confirmation on exactly what.
Well, the injector flow base is ranged from 22.58 to 53.31 So they seem to be scaled too.
Elmer
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When you scale the calibration you scale anything to do with airflow or torque, so it will make the DIC off by the percentage the calibration is scaled. This is done so you don't have to rape the PE table above the point you hit the 67.5 lb/min limit.
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From: Rocky Mountains Colorado
From what I understand:
The LS2 ECM contains a fuel injector size parameter limitation (67.5 lb/hr) which cannot be changed. Because of this imbedded parameter limitation, LS2 E-Force owners are left with one of two tuning choices. Scale the tune (Edelbrocks solution) or Rape the PE tables (not sure if this has successfully been done). Edelbrocks LS2 SCT Tune will render some of the DIC information associated with fuel economy inaccurate (perhaps by the same % that our tune is scaled). Not sure what the consequences of Raping the PE table are but I believe I will just live with a scaled tune and a Driver Information Center that is somewhat compromised. Not sure when the ECM parameter limitation associated with fuel injector sizing was changed but for those with the LS3, the ECM fuel injector parameter was expanded to a degree that it is of no consequence requiring no work arounds.
The LS2 ECM contains a fuel injector size parameter limitation (67.5 lb/hr) which cannot be changed. Because of this imbedded parameter limitation, LS2 E-Force owners are left with one of two tuning choices. Scale the tune (Edelbrocks solution) or Rape the PE tables (not sure if this has successfully been done). Edelbrocks LS2 SCT Tune will render some of the DIC information associated with fuel economy inaccurate (perhaps by the same % that our tune is scaled). Not sure what the consequences of Raping the PE table are but I believe I will just live with a scaled tune and a Driver Information Center that is somewhat compromised. Not sure when the ECM parameter limitation associated with fuel injector sizing was changed but for those with the LS3, the ECM fuel injector parameter was expanded to a degree that it is of no consequence requiring no work arounds.
Last edited by jxhunte; Apr 7, 2011 at 03:43 PM.
