Inline 6 on a 0411 pcm

[Thorwon]

Full rotation of all 4 stroke engines is 720 deg on the crank and 360 on the cam.

Your math is correct but your thinking is wrong.

To get a 175 deg signal on the cam the crank has to turn 545 deg while the cam has turned 185 deg.

While 87.5 deg rotation on the crank will give you 175 deg on the cam but then you have to figure out how to get another 360 deg on the crank.

If you try to put the cam signal on the crank you will get 1 signal per revolution. A 1x cam signal is actually a 1x per every 2 crank revolutions.

[dave w]

Full rotation of all 4 stroke engines is 720 deg on the crank and 360 on the cam.

Your math is correct but your thinking is wrong.

To get a 175 deg signal on the cam the crank has to turn 545 deg while the cam has turned 185 deg.

While 87.5 deg rotation on the crank will give you 175 deg on the cam but then you have to figure out how to get another 360 deg on the crank.

If you try to put the cam signal on the crank you will get 1 signal per revolution. A 1x cam signal is actually a 1x per every 2 crank revolutions.

For simplicity reasons lets look at the CMP signal @ 180 degree not 175, so perhaps we can agree the picture below is what a V6 CMP / CKP signal looks like with a 180 degree 1x distributor CMP Signal?

dave w

V6 CMP _ CKP.jpg

[Thorwon]

For simplicity reasons lets look at the CMP signal @ 180 degree not 175, so perhaps we can agree the picture below is what a V6 CMP / CKP signal looks like with a 180 degree 1x distributor CMP Signal?

dave w

V6 CMP _ CKP.jpg

Yes, I agree that's what it should look like.

[dave w]

Would it be an accurate statement to say the distributor mounted CMP is telling the '0411 computer that cylinder #1 is at TDC of the compression stroke?

Would it be an accurate statement to say the CMP signal is setting / resetting the injector firing sequence?

Would it be an accurate statement to say the '0411 computer that is using a distributor mounted CMP is adjusting the ignition timing via the Ignition Control Module based on CKP and MAF input?

dave w

[dave w]

I see the error in my thinking.

dave w

V6 CMP _ CKP_Crank.jpg

[Thorwon]

I see the error in my thinking.

dave w

V6 CMP _ CKP_Crank.jpg

I had faith you'd figure it out, you're a pretty smart guy.

[Thorwon]

opps

[dave w]

Another Idea similar to how DUI Distributors makes the HEI Distributors for the IH V8 engines. Basically, DUI adds a spud shaft / spud housing and an IH gear assembly to an "Off - The - Shelf" Chevy HEI distributor. Perhaps a similar idea will allow an "Off - The - Shelf" Vortec V6 distributor with 1x CMP to be retro fitted to the Jeep Inline 6? Perhaps a custom "one-off" Jeep Inline 6 spud shaft / spud housing and Jeep gear assembly added to the Chevy V6 distributor?

dave w

IH HEI Distributor.JPG

IH HEI Distributor-02.JPG

IH HEI Distributor-03.JPG