The only reason I didn’t thread mill these parts is that my mill is too large. These are M5 and my mill is for M6+.
You’re correct on both fronts, it’s an EFR7163 with the new TurboSmart dual port actuator. I wasn’t willing to pay >$100 for WG position sensing capability and I figured it would be a fun project. It’s on a E30 w/ the stock M20B25 running ~15psi or 300 whp-ish. I need to get it on a dyno as soon as my buddy gets his fully installed and running.
Already ahead of you on the thread milling, it’s great. You have any good leads on reasonably priced thread mills? Here’s an oil manifold that uses the stock oil pressure switch port on the block and adds capability for oil temp, oil pressure, and turbo feed (while maintaining the switch) from a couple weeks ago. Less than ideal surface finish, but an okay overall result. It will bolt onto the stock AC compressor bosses on the block for nice packaging.
