Just about to install Facet solid state fuel pumps in to the control
module before it finally gets welded in place. Two pumps are being
fitted as the NSI EA81 engine does not have a mechanical pump and needs
a both an electric main and boost. Thinks, do you connect them in series
or parallel.
If in series and one of the pumps fails in a closed condition, then no
matter how many boost pumps you have still, no fuel:-{
If connected in parallel and with the boost pump switched off, won't the
fuel be fed back thru' the pump in the wrong direction, as the infeed
will be at a lower pressure. Not sure what effect this will have on the
general fuel flow?
Does anybody know the correct way to connect the pumps, if there is one?
Regards,
Dave & Margaret Watson
#224 G-CUTY (The original Tri-gear kit)
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