Yo
I melted a piston 9/21 and had this BP05 out of my 95' rebuilt. Just using this thread to post my Blackstone Lab oil analysis after 500mi on the fresh build. I plan on doing another analysis after my next oil change at 4k total mi and post it here to see where the engine is going. Feel free to post thoughts, other oil analysis' or to just talk smack about my super charger.

-BP4W Short Block Decked .005" (approx)
-BP05 Head Decked .005" (approx)
-Mazda OEM Seals
-Mazda OEM Gaskets
-Gates Blue Timing Belt
-Manley Rods
-Supertech 83.5mm 9:1 Pistons
-Weisco XX Rings
-ACL Rod Tri Metal
-Clevite Mains Tri Metal
-Clearences Posted Below
-Boundary +1 Shim (5psi) Oil Pump
-ATI Damper
-Radium Fuel Rail
-Radium On Rail FPR
-Flow Force 640cc Injectors
-MP62 Blower Air to Air Intercooled
-130mm/62.5mm Pulley Combo
-MS2
-Running 93' Octane




pwc was set at .0035in

 

As they sort of alluded to, you’ll really know what’s happening after a few more analysis. I’ve got a thread floating around here about my own results and bearing woes. I’d be worried about that piston though, it’s incredibly difficult to do that with the power output of the supercharger. It’s usually from aggressive timing, poor fueling, or a combo of the two.

 

I had multiple reputable tuners look at the tune and logs from when it blew and the timing in their opinion looked good. I have a new tune on it right now. I have yet to flow the old i injectors that were on it but I still have them. I switched out everything fuel system wise for this build.🤞

Build thread:
https://www.miataturbo.net/supercharger-discussion-38/***-kitties-mp62-build-thread-105612/