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Pinsko Pinsko is offline
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Join Date: May 2007
Location: Houston, TX
Posts: 66
Originally Posted by John at J&S View Post
Well, I didn't want to point this out (scroll to the knock sensor section):

Engine Sensors and Tools - Electromotive Engine Controls

Number one, I didn't want to bash another product, and two, the statement may lead people to think knock sensors in general are a waste of time.

The Interceptor could be installed between the XDi-2 box and the Direct Fire Unit (DFU). The Interceptor retards by extending the dwell time, so I would have to check with Electromotive to see if the DFU can handle more dwell.

The Vampire could also be used, but it requires MSD 8870 coil interface modules (spacers) under the coils. These have wires that allow access to the coil+ and coil- signals. The Vampire control wires would then connect to the coil negative signals.

The XDi-2 would continue to do most of the work, and the Vampire kicks in only during the retard event. The Vampire can even be disconnected while the engine is running, and it will continue to run.

can you point out in layman's term how and what your system does better?

Old 02-08-2010, 07:54 PM
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