Chris got it running again today.. and he is 'getting the feel' for the engine, and starting it.

This is still no-load, no instrumentation engine operation.. Instrumentation is probably the next focus: EGT on the exhaust.. calibrate oil temp and pressure probes, as well as obtaining fuel pressure senders.

May take the radiator drain fitting out and use that as a temp sensing point, or have the radiator tapped at its discharge point for that purposes.


Ok....
What we know:

One of the secondaries had a poor connection and broken wire inside a crimp. This caused an intermittent power condition within one of the secondary fuel injectors.

This is the only repair made, and starting was possible after this. This is a very concerning failure mode. I will await Tracy's return to see what he thinks..

B runs smoother than A. The only diff is an intake air temp probe on A and non-temp adjusted values on B.

The EC2, as programmed to defaults, is somewhat rich in the no-load condition of our street ported (by us) engine. We are getting very good results with manual leaning and estimated revs in the 3-4000 range with a closed throttle, simply by using mixture to control the engine.

None of our runs have been substantial enough to cause the thermostat to open on the coolant circuit. Engine makes hot oil and hot water, and sends the hot oil through the oil cooling system.

Our RD1-B has oil circulation, and is warm to the touch from the hot oil being circulated in it. There is minimal to no discernable drainage from the aft oil drain hole on the RD1-B. We have good oil in, and good oil out from the lower/forward drain hole, but none from the upper/aft one. I have aluminum tubing and tube nuts on this run. I will make a short "soft line" for this run, as well as for the oil feed (which is currently a stainless "hard line" run from the stock oil pressure sensor port to the redrive inlet port.

Anyone have any thoughts on the injector power being a possible point of failure? Has anyone else had a single secondary injector (presumably staged) unpowered before and had a problem?

Dave