I do.
The instruments are already installed in the cockpit, only need the plumbing.

3/19/26      999999.9 Miles

I finished with the Lube Oil System Test.  The modified system ran so well that I just kept going until the odometer reached 100K.  The full test covered 53,478 very hard miles (46.5K to 100K).  Oil pressure remained the same for the entire test, and I didn’t experience any failures related to lubrication.  There were no incidents of metal chips on my drain plug, so I assume the left-hand main bearing is healthy.  Endoscope inspections of the transmission at routine intervals verified that no pitting was occurring on top-gear (4th).  The hoses, special fittings, and oil cooler remained oil-tight throughout the test.  The high-speed oil pump drive did not exhibit any unusual noise, and the gear teeth always looked good when I checked them.  Oil pressure was consistent throughout the test.

The engine ran strong.  If you go back in this post, you will see that I started the test with an engine that had a 97mm pop-top piston installed.  I mated that pop-top to a shortened cylinder to achieve a compression ratio of 10.8:1, but there was no effective quench area.  When I inspected it at 20,000 miles the piston had some damage due to detonation.  I decided to reassemble with a 97mm flat-top piston with the combustion pocket enlarged to 10cc.  That setup had quench set at .038” and a compression ratio of 10.6:1.  I was hoping the slight reduction in CR combined with some good tight quench would eliminate the detonation issue.  It ran fantastic and I logged an additional 33.5K on the odometer.

Each time I did a service I checked the compression.  It remained at 210 psi until the odometer read 97K.  On that service, the compression was 200 psi.  At 100K, the compression was down to 185psi.  That was significant.  It looked like something was goin south, but the engine ran fantastically.  Time for a teardown.

As previously mentioned, compression was down, now only about 185 psi.  For the majority of the test, compression held at 210 psi, then at 97K on the odometer it dropped to 200 psi, then at 100K on the odometer it was down to 185 psi.  I found it a bit unusual since the performance didn’t seem to be off.  Starting was excellent, acceleration excellent, torque excellent, fuel economy excellent (58-61 mpg), oil consumption minimal.  The oil consumption seemed to improve over time.  I almost never had to add oil.  Maybe 6 ounces between oil changes, and I was changing oil every 4000 to 4500 miles.

The oil dump showed no problems with chips.  Just ferrous mud on the drain plug.

The special connection/fitting installed on the rear of the crankcase was dry.

The special fitting for the oil supply to the top end was dry.

The cylinder head to cylinder joint in the right rear corner was bone dry.  The external oil feed was working great.