1 Attachment(s)
dustin's duster injector flow test :(
Tested Dustin's 4g63 truck injectors today. He's been having some tuning issues. Found that injector 4 flowed about 20% more than the others in a lot of the tests. Not good. Sometimes debris can not allow the injector to fully close but I cleaned/flushed them and installed new filters and it did not fix the problem. The cleaning did fix injector 3 from leaking.
Even though I couldn't fix the one, its still nice to find problems so you can replace it and move on vs trying to tune something that is broken.
Here is a picture of the dynamic test with varying pulse widths and rpm's result. Injector 3 is a bit high but probably acceptable for a lot of people, injector 4 is just too much. Flowing 24% more than injector 2 in this test.
Attachment 865