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« on: February 24, 2007, 09:31:03 AM »
Not to raise an old standby issue, but I would like to hear from others what their S.O.P. is with engine leaning. My airplane has 0-320's, carbureted. I would love to run lean of peak, but can't seem to get there without significant engine roughness. Using the VM1000 monitors, many times I get a really rough engine before the monitor indicates a cylinder peaking. Really bad fuel distribution apparently. I have given thought to changing my airbox configuration, etc., to see if I could improve this. I don't use a ramair type system, I have inlet filters inside the cowls near the firewalls, with scat tubing to the airboxes, typical Rutan plans type induction. My airboxes came off the Apache that the engines came from, with the flow vanes which divide the 4 quadrants. Are most of you guys able to go LOP without roughness?