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You could have that pulley/reluctor balanced . would not be a big deal. that is if you was worry about it. be nice to at lease see if it is off much anyhow.

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there was an efi build years ago where they were using a milodon or keith black gear drive. Epoxied a magnet on the cam gear and mounted the sensor right to the cam cover.

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BTW I'm going to be trying this with a drive by wire harness

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I was wanting to use the DBW itself. I think it would clean up the install and give me more control over the gm torque manage. What problems will I run into? I'm still in the parts gathering stage so It wouldn't hurt me too much. I already have a TAC module and a pedal for this harness too.

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What car/truck and year did the TAC Module and Pedal/harness come out of? That dictates what model PCM you should run for compatibility sake.

The 99-2002 Vettes used DBW and the 411 24X/1X PCM.....but most LS conversion shops prefer to use drive by cable whenever possible for simplicity, etc. It can be done DBW...I just don't know as much about those systems. Most people prefer to just turn off torque management (which I think retards timing during shifts), which I'm not sure how you could make it work with a mopar transmission...but maybe it's possible.

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Here's what I envisioned for a hidden 1X signal (I didn't really come up with this on my own). Take the cam sprocket and epoxy or drill and tap and attach with screws a 1X reluctor straight to the gear. Then attach the semi/flush sensor to the timing cover to read the signal. I plan to test fit this on my spare motor soon to see if there is enough clearance between the back of the waterpump housing and the timing cover for the sensor. This would a real clean way to get the signal. Here's a pic of a similar one (the large U shaped area around 180 degrees of the sprocket would act as the reluctor):

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...what if I told you that you could do this EFI setup for as little as $700?

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What if I told you that your thread is arguably hands down the best Moparts technical how-to ever.

TWhen finished this should be pinned at the top of the Tech Archives section.

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Here is my attempt at a hidden reluctor, it is a 24X reluctor off a BB Chevy that fits on the crank snout. The problem is that the BB Chevy crank snouts are a larger diameter than the BB mopar so there is more play than I am comfortable with. If that reluctor is not centered on the crank snout, then the clearance between the reluctor teeth and the Crank Sensor would vary during rotation. Anybody know a easy way to make the hole smaller and maintain a key way? It is made of powdered metal, if that makes a difference....

Then the problem would be how to add a crank sensor to the bottom of the timing cover, it doesn't really land in a good location on the cover during my mockups....also, I would want some level of adjustment with the sensor and the keyway on a BB chevy and a BB mopar is not the same if I remember correctly. So the reluctor would need another keyway cut (but that's no big deal). Also, the balancer snout would have to be cut to keep pulley alignment, but again, thats no big deal.

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