Actually no, I didn't ground the coilpack wiring since it wasn't in stock form, as I understand it anyways.
I snagged some CAS wiring out of a FC at a local yard, I don't believe it is twisted either, but the shielding is definitely different.
Stock FC CAS wire uses a woven metal shielding as opposed to foil shielding on the belden cable I got. It should accomplish the same thing, though. I've heard of people using microphone cable, which can't be better than this belden stuff, can it?

Only thing I can think to try is moving my MS/relay board ground to the engine as opposed to direct battery. Not sure if that could be an issue or not.

I am also considering an experiment in trigger wheels. Gunna start a new thread here shortly.

 

When dDub grounded his MS straight to the battery, he couldn't even get a signal from the CAS. He got no RPM signal at all...

I would strongly suggest grounding to the engine... then grounding the engine to the chassis in a few places... It might not make a difference, but it's yet another thing that your install has that's different from all the installs I've had running.

I honestly don't know if having braided shielding makes a difference, but I know that I've used either the stock wire, or some wire a friend bought for me that has braided shielding, and I've never had noise problems with those setups.

 

I have a thick ground cable going from the strut tower to the engine. Haven't had any issues, but I will reground the MS and see if it helps.

Do you have a manufacturer and part number for the wire you bought?

So, the only change he made to get his setup working was move the ground to the engine? Weird...

 

I didn't buy it, a friend did, I'll see if I can get him to post it here.

but yeah, when dDub first installed his MS, it was grounded straight to the battery, and he wasn't getting a signal when he cranked the engine... but he was getting a signal when he spun the CAS by hand... he moved the ground to the engine, and he suddenly had a tach signal.

 

What if the CAS is stabbed 180 degrees off? Should that matter? I wouldn't think so, but..
This is how it's stabbed. Sorry for the blur, no opti-zoom.



I'm using the 1,3 7,9 settings. 60 degree trigger angle.

 

That's just very wierd. If he ran both VR wires back to the MS (without trying to use the chassis/etc. as a return ground) I cannot see how this could happen. I'm always open to new observations, truth is sometimes stranger than fiction. Ideas, Ken?

-Mike

 

I thought it might be something to due with his starter, or the fact that he had relocated his battery... but I've seen weird things happen when grounding straight to the battery, and I've also had people specifically tell me not to ground straight to the battery.

 

being 180 deg off won't hurt the MS....

From what I can tell it looks OK, but it's really hard to see exactly.

 

Yeah, it is a bad angle and blurry.
The 2 tooth wheel doesn't exactly line up with the 24 tooth, I noticed. It set to line up on the 3rd tooth as I remember. Counting starting from the first tooth after the two tooth wheel.
Timing is set spot on, though, so it must be correct..