Fuel pump regulation vs. supply voltage
OADDAB at STDVAX.GSFC.NASA.GOV
Fri May 6 15:00:23 GMT 1994
>Question: how good is the fuel pump regulation as the supply voltage varies?
Typically you run a high pressure pump - lets say 75psi and then use a
regulator that references to manifold vacuum - something like 50psi above
manifold vacuum. This helps insure that a given pulse width will alow a
given amount of fuel in - no matter what the intake pressure is - even if
its under boost. Pressures like 100psi - could be a safety concern so a
little careful planning is in order. Use only fuel lines desinged for this
pressure - better yet use braided steel lines for all flexible lines.
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