Quote:
Originally Posted by ChevyRules
And as I mentioned, other DI engines use an electrically driven high pressure fuel pump so the pump is up to speed the moment you press the button. The engine has to be turning in order for the Gen V small blocks high pressure fuel pump to work.
Not sure how that is hard to understand. It's not a DI issue as others tend to say, but how GM decided to power the high pressure fuel pump that is needed for DI for the Small Blocks.
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I appreciate this thread, was wondering if the long start times I experience were an issue. Interesting on their pump choice. In my 911 when I walk up to car in my garage, even before I touch the car I hear the whine of the fuel pump, the proximity key must trigger it, so is there a reason for the cam driven fuel pump in the LT4?