HOZZ4 Posted January 24, 2008 Report Share Posted January 24, 2008 Does anyone have any info on the various injector flowrates used on the truck engines (4.8/5.3/6.0, etc)? I am mainly looking for the flowrate of the 2004 5.3L LM7 (gasoline) and the L59 (flex fuel). Also, if the fuel pressure for these appliecations is know, please let me know. Thanks! Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted January 24, 2008 Report Share Posted January 24, 2008 i think GM rates their injectors flow rate at 42.5 psi Quote Link to comment Share on other sites More sharing options...
zippy Posted January 24, 2008 Report Share Posted January 24, 2008 Does anyone have any info on the various injector flowrates used on the truck engines (4.8/5.3/6.0, etc)? I am mainly looking for the flowrate of the 2004 5.3L LM7 (gasoline) and the L59 (flex fuel). Also, if the fuel pressure for these appliecations is know, please let me know. Thanks! Gas should be 28's and Flex Fuels should be 38's. Quote Link to comment Share on other sites More sharing options...
mean05 Posted January 24, 2008 Report Share Posted January 24, 2008 24's is what on the gas motor...not sure bout the flexfuel Quote Link to comment Share on other sites More sharing options...
SRT10KLLR Posted January 25, 2008 Report Share Posted January 25, 2008 I checked my injectors flow rating using EFI Live it showed 25.235972 Lbs/Hr on my 2003 5.3L and I believe our trucks run at 58PSI(4 Bar). Just to check I also looked up some 4.8L & 6.0L stock tunes since I just put in a 6.0L(or rather a 6.7L 408) and wanted to see what size injectors they came with stock and they were both using the same size as my stock injectors. Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted January 25, 2008 Report Share Posted January 25, 2008 our trucks are 26# and ls1/ls6 are 28# Quote Link to comment Share on other sites More sharing options...
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