Quote Originally Posted by Thorwon View Post
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