Quick Injector Question
12-30-2008, 02:34 PM
#4
Banned
Join Date: Apr 2006
Location: Goodyear, AZ
Posts: 1,631
Yes, you want high imped! The high imped run 11-18 ohms. The low or also know as peak/hold are around 2-6 ohms.
The imped. is determined by the pcm injector drivers. Most Fords are high. Some earlier cars like the 2.3 SVO were low imped.
Casey
The imped. is determined by the pcm injector drivers. Most Fords are high. Some earlier cars like the 2.3 SVO were low imped.
Casey
12-30-2008, 03:08 PM
#5
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
Lower impedance injectors open faster and more consistently at high fuel pressures (100+ psi) than high impedance units, and they can also have stronger return springs because there in a stronger magnetic field created to open them. However this requires injector drivers that can supply much higher inrush current than needed to open high impedance injectors.
Higher current capable devices = higher manufacturing cost (and shorter life too), for no real benefit on nearly any streetable engine.
Higher current capable devices = higher manufacturing cost (and shorter life too), for no real benefit on nearly any streetable engine.
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