I have been fitting the fibre optic tacho head sensors to the compressor scroll's and mounting the optical decoders nearby.

The copper pipe will be bent towards the original knurled shaft nut when complete and that nut will be half painted White / Black.

I have decided to run tests on the engine very soon and I will be starting it using 2 modified 16mm 3/8th drive sockets each fixed to a 30000RPM router. The routers will be wired in series so they will both run at 115V as opposed to 230v so they should run approximately at 15000 RPM. The 16mm sockets will be hand pushed onto the 16mm stainless steel domed nuts on the ends of the shafts. At 10RPM the Oil pump will start to ramp up and build pressure to approx 60PSI over a time period of 20 seconds.

And then:

Fuel turns on @ 3000RPM

Fuel turns Off @ 65000RPM

Ignition On @ 2000RPM

Ignition Off @ 20000RPM

The engine (fuel) will run until either the fuel runs out, high temp is reached, Oil pressure drops below a set value or an E-stop is pressed.

If an E-stop is pressed then this will totally shut down everything, even the oil.