Anyone else using MegaSquirt on a LA motor?
Here's a picture of my crank trigger setup. The toothed wheel is a 36-1 from DIY autotune. I machined a a hole in it that allowed it to fit on the back side of a factory pulley and tack welded it on. It's important to the ECU calibration to know exactly where the missing tooth is on the wheel. To prevent problems if I ever had to remove the pulley, I drilled an 1/8" hole in the pulley and into the damper a little so I have a reference point when reinstalling the pulley. The sensor you see in the picture also came from DIY autotune, although, you can probably use almost any crank sensor out there. I like the threaded body on this one since it allows me to fine tune the distance to the trigger wheel.
This is actually my second version of the bracket. My first one was on the left side of the engine and in a much more convenient spot, but once I installed the AC compressor, the belts came into direct contact with the sensor. This spot was the next best place for me since I also have power steering. If you don't have power steering, this will be much easier.
Here's a picture of my crank trigger setup. The toothed wheel is a 36-1 from DIY autotune. I machined a a hole in it that allowed it to fit on the back side of a factory pulley and tack welded it on. It's important to the ECU calibration to know exactly where the missing tooth is on the wheel. To prevent problems if I ever had to remove the pulley, I drilled an 1/8" hole in the pulley and into the damper a little so I have a reference point when reinstalling the pulley. The sensor you see in the picture also came from DIY autotune, although, you can probably use almost any crank sensor out there. I like the threaded body on this one since it allows me to fine tune the distance to the trigger wheel.
This is actually my second version of the bracket. My first one was on the left side of the engine and in a much more convenient spot, but once I installed the AC compressor, the belts came into direct contact with the sensor. This spot was the next best place for me since I also have power steering. If you don't have power steering, this will be much easier.
