LT1-LT4 Modifications 1993-97 Gen II Small Block V8

High impedance injectors?

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Old 12-04-2011, 07:10 PM
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Default High impedance injectors?

Are there any problem with running High impedance injectors in a lt1. I am kinda new to the injector swapping.
Old 12-04-2011, 07:17 PM
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you want high impedance. that's what works.
Old 12-04-2011, 10:19 PM
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Make sure you get the proper battery offsets and you won't have any issues. Without them it can be a PITA to get it to run right, especially if you are talking high flow-rate injectors...

I have 750cc units in my car and I have zero issues.
Old 12-05-2011, 08:59 AM
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yes a minimum of a 12.2 Ohm injector is required on a stock GM PCM.........basically this is whats going on......

12.2 ohms/ 12 volts is around 1 amp
2.2 ohms (low z injector) / 12 volts is around 5.5 amps which equals instant death for the gm circuit drivers......



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