Can we make this a sticky for other fabricators who will be doing new fab projects since rotaries are increasingly harder and more expensive to find?
I am in the process of designing and modeling parts for this beautiful masterpiece of Jap Engineering.
Has anyone got actual, proper, calibrated measurements for any of the following?
Either measured with on a QC table with real, quality measurement tools like a calibrated diat indicator, mic, and gage pins wtc...not a tape measure.
I looked in all the PDF's Mazda has for teardown, inspection, and reassembly and best I can find is part numbers and torque specs, not engineering measurements.
These dimensions are critical with runout tolerance of only 0.005", which is SUPER tight.

I need bolt patterns for:
The flange of the flywheel to the counterweight
The interface of a renesis 13b (or last gen rx-7) to the transmission.

I know there was a thread from years ago where someone posted the tranny bellhousing bolt pattern, but when I put those in CAD and checked them, they were too far off to be what Mazda designed...close, but not precise. For example, the bolt circles were off several hundreths off in diameter, and so were angles' degrees. The stackup would exceed the 0.005".

Thanks,
-Mike