COP Ignition Development
After much work designing, I thought the weather is nice, why not put the revised timing sensor prototype on the Barracuda and go for a drive. I did that and it worked! Starting is acceptable, it fires off in one engine revolution or less. Installation is easy, two wires, ignition power and ground, the rest is done in the harness. The base timing is accurately set using static method of setting crank at desired base timing and set specific tab wheel index to sensor slot, using normal rotation of distributor body, then tighten lock bolt.
The U2 on the green circuit board shows the timing sensor, the tape on the tab wheel, indicates the tab edge to align with sensing slot as shown.
I used a standard cap, unable to by a tower-less cap at auto parts store. Note the distributor is short, and without vacuum pod, it is easily rotated 360 degrees. "Ready to run" and other distributors are hard to fit on this 66, with A/C, oil pressure sender, and kick-down pars nearby. The newer Jeeps have such a cap, but my limited searching suggests it is only available in complete CAM sensor module including body and other parts that cannot be used on this system. Caplugs will be used to cover unused tower terminals, much easier than cutting off and resealing...
The ignition coils are mounted on valve covers, plug wires straight down to plugs, hard to mess up. I am using an old cut down set of MSD wires that came on a purchased.
The RPM and Vacuum settings were derived from 2D from my old post here:Ignition Timing in 3D The timing maps work so well, and so similar to my Mallory Uni-Lite, I would not know the difference. I will need to dive a bunch more and see if there is any improvement possible. After that I will evaluate what can be done with 3D table.
I plan on doing more posts, but will split to a new thread, this one is a bit long. I hope to post a poll, and see if there is enough interest for me to continue development. The poll will include more detailed information about the system, and why electronic advance, direct fire, the sensing system and other features make this an excellent system, compared to other available products.
After much work designing, I thought the weather is nice, why not put the revised timing sensor prototype on the Barracuda and go for a drive. I did that and it worked! Starting is acceptable, it fires off in one engine revolution or less. Installation is easy, two wires, ignition power and ground, the rest is done in the harness. The base timing is accurately set using static method of setting crank at desired base timing and set specific tab wheel index to sensor slot, using normal rotation of distributor body, then tighten lock bolt.
The U2 on the green circuit board shows the timing sensor, the tape on the tab wheel, indicates the tab edge to align with sensing slot as shown.
I used a standard cap, unable to by a tower-less cap at auto parts store. Note the distributor is short, and without vacuum pod, it is easily rotated 360 degrees. "Ready to run" and other distributors are hard to fit on this 66, with A/C, oil pressure sender, and kick-down pars nearby. The newer Jeeps have such a cap, but my limited searching suggests it is only available in complete CAM sensor module including body and other parts that cannot be used on this system. Caplugs will be used to cover unused tower terminals, much easier than cutting off and resealing...
The ignition coils are mounted on valve covers, plug wires straight down to plugs, hard to mess up. I am using an old cut down set of MSD wires that came on a purchased.
The RPM and Vacuum settings were derived from 2D from my old post here:Ignition Timing in 3D The timing maps work so well, and so similar to my Mallory Uni-Lite, I would not know the difference. I will need to dive a bunch more and see if there is any improvement possible. After that I will evaluate what can be done with 3D table.
I plan on doing more posts, but will split to a new thread, this one is a bit long. I hope to post a poll, and see if there is enough interest for me to continue development. The poll will include more detailed information about the system, and why electronic advance, direct fire, the sensing system and other features make this an excellent system, compared to other available products.