The Injector Offset Tables are parameters that are important for tuning.
The screen shot below shows injector offset tables from 94 Pickup with a 4.3 $OD and a 94 Pickup with a 7.4 $OE. There is...
Type: Posts; User: dave w
The Injector Offset Tables are parameters that are important for tuning.
The screen shot below shows injector offset tables from 94 Pickup with a 4.3 $OD and a 94 Pickup with a 7.4 $OE. There is...
The Injector Flow parameter is one of the most import parameters to determine in the tuning process.
What an injector is rated to flow vs. what an injector is actually flowing vs. the injector...
$OD is for the 4L60E, $OE is for the 4L80E
The factory did not use the 4L60E with the 7.4 liter.
Using two instances of TunerPro (side by side) is required to compare a $OD .bin file vs. $OE...
Attached is the PE Active AFR's for a 16197427 Daily Driver.
It would be awesome to compare AFR's screen shots from other tuner members. I think posts with data are the most helpful for everyone...
The link to gearhead-efi TBI injector flow rates: http://www.gearhead-efi.com/Fuel-Injection/showthread.php?81-GM-TBI-Injector-size-color-and-part-numbers
17104288 - Pink / Purple - 46pph @13psi...
I tune a daily driver 16197427 with two Oxygen Sensors, the factory O2 sensor and the WBO2. I do not use simulated NBO2 data.
I tune a daily driver 16197427 with factory default AFR fuel ratios....
Attached are more spreadsheet screen shots from the same combined data logs previously posted.
Injector Duty Cycle should increase with engine load / engine rpm.
BLM's and WBO2 data are not...
Based on the information in this link: http://www.gearhead-efi.com/Fuel-Injection/showthread.php?81-GM-TBI-Injector-size-color-and-part-numbers ... the 17084327 injector has a factory rated flow of...
I tune with closed loop for 16197427 daily drivers. The attached screen shots show closed loop WBO2 tuning data that has multiple data logs combined, using the same .bin file. The combined total of...
I tried using my WBO2 spreadsheet for the newplugs-run.xdl file posted above.
Most of the data was open loop, so the spreadsheet was not helpful.
dave w
Timing tables can be challenging. Most of the time, I start tuning with a factory timing table, like the Vortec L31 table I posted a link to and tune from there. Once the stock timing table has...
Link I posted to the Stock 1998 Vortec L31 Timing Table: http://www.gearhead-efi.com/Fuel-Injection/showthread.php?1233-1998-Vortec-Timing-Table-(Black-Box-Computer)-Open-Closed-Throttle-ONLY!
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