One pump will not meet the required fuel pressures required by the engine under full boost. Ensure both pumps are working before driving under heavy load.
FYI, I run two BOSCH 044 700HP fuel pumps in series to meet the fuel pressure demands of my setup
'89 911 Turbo Cab
Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
Last edited by WydRyd; 01-08-2007 at 03:01 PM..