Quote:
Originally Posted by arghx7
Summary:
DI= more knock relief, potentially poorer mixture formation, more impingement on the piston and cylinder walls, flow limited due to injector flow rate and high pressure fuel pump flow capacity
PFI= more knock prone, more likely to form a more homogenuous mixture with better combustion stability, easier to flow at higher rates (just buy aftermarket PFI injectors and low side pump), not nearly as sensitive to fuel pressure or injection timing
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First of all, great post. Thank you for your input. I am trying to get my head around all the info here and the other threads linked earlier. One thing I was curious about is, what exactly does "better combustion stability" mean?