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Old 02-20-2014, 03:12 PM   #9 (permalink)
bestclimb
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From what I have seen these projects end up getting shelved because the lack of a cost effective, accurate metering device, and often, the need for two of them to measure the flow on the return as well. You can get them in the aviation and marine markets but they are spendy and often inaccurate at typical automotive flow rates.

On a carbureted engine it is tough because instant flow at the fuel line does not necessarily=instant flow into the engine. As flow into the carb is a function of float valve and vacuum and flow into the engine is a function of airflow past the venturi.
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