Cam Sync Sensor
#1
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My local dismantling yard keeps Mazda, Kia, Hyundai and Mitsubishi’s in the same portion of the yard. While getting some parts off a FWD 1.8 engine l looked over and noticed a cam angle sensor on the back of a Kia that looked about the same size as the Mazda CAS unit. Since Kia has a history of purchasing and redesigning Mazda engines I thought… Why not see if it fits.
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My plan is to use this as a cam sync for my 36-1 trigger wheel and sequential injection. I know the stock CAS can be modified to work, but I thought this sensor assembly may be a better approach. Since I am a total n00b at electronics, I thought I would ask the experts.
So here are my questions:
1) Is it a Hall or VR sensor?
2) How should it be wired to an MS3?
3) If I cut half the CAS drive on the back of the stock cam off, can the remaining half-moon shape be used as a trigger signal?
4) If a tooth is ideal, what clock position should the “Tooth” on the back of the cam be at?
5) How wide should the gap between the sensor and tooth be?
[IMG]
![](https://www.miataturbo.net/attachments/megasquirt-18/71161-cam-sync-sensor-img_5998_zps3ff112e1.jpg?dateline=1364195856)
![](https://www.miataturbo.net/attachments/megasquirt-18/71162-cam-sync-sensor-img_5996_zpsdda37310.jpg?dateline=1364195856)
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![](https://www.miataturbo.net/attachments/megasquirt-18/71163-cam-sync-sensor-img_6013_zpsc9d235cf.jpg?dateline=1364195856)
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![](https://www.miataturbo.net/attachments/megasquirt-18/71164-cam-sync-sensor-img_6005_zps41bf5196.jpg?dateline=1364195856)
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![](https://www.miataturbo.net/attachments/megasquirt-18/71165-cam-sync-sensor-img_6015_zps6a461860.jpg?dateline=1364195856)
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![](https://www.miataturbo.net/attachments/megasquirt-18/71166-cam-sync-sensor-img_6008_zps98b8fcc0.jpg?dateline=1364195856)
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![](https://www.miataturbo.net/attachments/megasquirt-18/71167-cam-sync-sensor-img_6021_zpsedecffde.jpg?dateline=1364195856)
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![](https://www.miataturbo.net/attachments/megasquirt-18/71168-cam-sync-sensor-img_6011_zps3b894ab7.jpg?dateline=1364195856)
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![](https://www.miataturbo.net/attachments/megasquirt-18/71169-cam-sync-sensor-img_6024_zpsa327420b.jpg?dateline=1364195856)
My plan is to use this as a cam sync for my 36-1 trigger wheel and sequential injection. I know the stock CAS can be modified to work, but I thought this sensor assembly may be a better approach. Since I am a total n00b at electronics, I thought I would ask the experts.
So here are my questions:
1) Is it a Hall or VR sensor?
2) How should it be wired to an MS3?
3) If I cut half the CAS drive on the back of the stock cam off, can the remaining half-moon shape be used as a trigger signal?
4) If a tooth is ideal, what clock position should the “Tooth” on the back of the cam be at?
5) How wide should the gap between the sensor and tooth be?
#5
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Does the sensor need to be shimmed to offer clearance to the cam? If grinding one of the half moons off, does one need to worry about balance of the cam?
I've been trying to learn about adding a trigger wheel and the CAS modifications; running wires and bolting things on, I can do but feel like I'm in over my head when it comes to the actual tuning setup (VR pot adjustments and syncing)
I've been trying to learn about adding a trigger wheel and the CAS modifications; running wires and bolting things on, I can do but feel like I'm in over my head when it comes to the actual tuning setup (VR pot adjustments and syncing)
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