The "Power Box"

• Subject: The "Power Box"
• From: E21Bob@domain.elided
• Date: Sat, 14 Jan 1995 09:45:47 -0500

This is in response to Jeff Tatum's note on the "Power Box."

It seems to me that the "Power Box" advertised in the Roundel (modifies the
fuel injection pressure) might not work on some BMW's.  Most of the fule
injection systems in late model BMW's have a fuel pressure regulator that
keeps pressure constant and dumps excess fuel back into the fuel tank when
pressure increases.  The amount of fuel sprayed into the cylinder is a
function of how long the injector stays open.  The fuel pressure does not
change.  Maybe the power box somehow disables the pressure regulator or
requires its removal.  Has anyone installed one of these yet?         

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