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questions about high and low imp injectors

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Old 10-13-04, 12:39 AM
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vac leak

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questions about high and low imp injectors

ok, i've read up on some threads concerning injector replacements...from what i know low impedence injectors are peak and hold while high imp are saturated...low imp provide better responce and come in sizes bigger than 550cc...ok...so is it possible to modify peak and hold injectors to fit stock high imp systems? ...i think its possible but didnt find any instructions on how to do this specificly... after converting would the injectors retain the peak and hold ability or what?......any other pros/cons with a peak and hold/saturated systems?

if any of the info i stated are incorrect, please correct me
Old 10-13-04, 02:39 AM
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FxF
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The injectors you have on your car are high impedance. Read here. http://www.rotaryresurrection.com/ro.../injector.html
Also read here https://www.rx7club.com/2nd-generation-specific-1986-1992-17/how-will-i-install-denso-720cc-secondaries-329066/
It is my thread about the injectors...
I did it to my TurboII and I have no problems.
I think this should cover your questions...

-Fanis
Old 10-13-04, 03:23 AM
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ahh there we go..i thought i read that somewhere before...thanks
Old 10-13-04, 03:30 AM
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hey...any pictures of the install yet?
Old 10-13-04, 03:45 AM
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Originally Posted by torean
hey...any pictures of the install yet?
If I finish work early, I will make it today.

-Fanis
Old 10-15-04, 12:08 PM
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Thread done. Check it out.
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/how-install-720cc-secondary-injectors-s5-turboii-pics-included-358565/

-Fanis
Old 10-15-04, 01:46 PM
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Peak and hold are more responsive.(high impedance)
Saturated are better for large fuel amounts(low impedance).


The peak and hold ability is the injector itself not the wires/ECU.

If you want to run a low impedance injector in a High impedance harness you will need to place a 10ohm/10watt inline per injector.

This will lower the impedance of the wiring harness to acceptable levels for that injector.

Currently I am running low impedance seondaries and high impedance primaries.

I am keeping the primaries high impedance since they are more responsive.
I have low imp secondaries because I plan to go to 720cc injectors and they are almost always low imp.
Old 10-15-04, 02:01 PM
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that clears it up..thanks
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