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Thread: dustin's duster injector flow test :(

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  1. #1
    Owner AutoMods's Avatar
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    Jan 2005
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    Thumbs up 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.
    dustin_720cc_injectors.jpg
    Last edited by AutoMods; 09-26-2012 at 08:17 PM.
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