Speeduino MPFI vs Holley Sniper EFI or MPFI vs TBI(my observations)

tanis4457 said

No cam signal being used. My whole point of the thread was to point out the effectiveness of these new TBI EFI units and in comparison to MPFI are pretty close. My guess is that the MPFI might provide 1mpg better in around town part throttle driving. At wide open throttle neither provides an advantage unless we are also talking individual MPFI injector tuning etc and that is outside the scope of my original intention and also outside the capabilities of off the shelf units like the edelbrock pro flo.

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Yea but,,, a throttle body will always have wet intake manifold runners, just like a carburetor.
The dry runners that are inherent with MPFI guarantee better fuel delivery. Probably not available on the basic MPFI system that the OP used as his base line, most quality MPFI ecu’s allow for individual injectors duty cycle setting to compensate for higher cylinder operating temperatures that can occur on certain cylinders due to air or coolant flow differences.
So yes, I would agree that throttle body can compare to a very basic MPFI system. That speaks more to the limitations of that basic MPFI system than the quality of the throttle body system.