Title: Engine Testing at Ly-Con Aircraft Engines
I was at Ly-Con for Thursday and Friday doing engine testing. They were super friendly, knowledgable, professional and helpful. After setting the engine up on the stand, they hooked up my SDS EFII system to their dyno, which took a while considering my system was the first dual ECU EM-5 system they'd run on a 6 cylinder engine. I called SDS for some tech support and Barry answered right away and was also very helpful. Once the setup was complete, they pre-lubed the engine and then went to start. The first start was amazing - started after the first blade pass and purred along at about 600 rpm. It took a about 2 hours for the break-in runs, but once the rings were seated and the plugs were dry, we put a three blade prop and governor on and started the fun performance runs. The first run produced 320 hp @ 2700 rpm. We then performed tuning in the ECU, which included mixture adjustments, trim settings between injectors and also advance timing. We found that my SkyDynamics intake produced just over 1" additional MAP measured differentially from the throttle body to the Intake port - which was very impressive. The final run for today produced 345 hp and 664 ft-lbs torque at 2732 rpm. Not bad for a 9:1 parallel valve engine. We still have another couple hours of testing to find the output from 1800-2700 and create an operating profile, then a final full power run with my exhaust installed for comparison to the short stacks they use for test. it's a great feeling to know for certain that the engine will run well, but also to get good settings and adjustments taking one of the big nervous items out of the way for first flight. Very much worth the money. It was a great eperience with a very self-fulfilling outcome.


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