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Join Date: Sep 2020
Location: Chicago, IL.
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When Well Enough Can't Be Left Alone; Backdate, EFI/ITB, AC, and more!

That’s pretty cool.

You’re just a few steps away from divorcing everything engine related from the original wiring which would be very cool given the state of most 911 wiring.

All you need is a PDM and ignition system and the original wiring will be for lights and whatnot.

My ECU has PWM outputs which can create an “analog” signal, or one that looks like an analog signal to an analog receiver like a gauge, and a few other low voltage outputs for driving relays, etc… I have one reserved for triggering the oil cooler fan or something in the future that I haven’t thought of yet.

Mine is a stripped down version of the MS3 pro evo which has more features than I needed or wanted (along with more than double the cost).

For this car it’s more than sufficient. For a more high strung engine or twin plug it wouldn’t cut it.


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-Julian

1977 911 S: Backdate, EFI/ITB, AC project in the works:
http://forums.pelicanparts.com/porsche-911-technical-forum/1106768-when-well-enough-cant-left-alone-backdate-efi-itb-ac-more.html

Last edited by Showdown; 05-20-2025 at 01:54 PM..
Old 05-20-2025, 01:50 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #541 (permalink)