Firefly-YCTTSFM Posted December 4, 2009 Share Posted December 4, 2009 Just came across an article in AvWeek (Nov 30, 09 issue) that said the latest Lycoming IO-390 engine variant was now certified. It's described as a replacement of the IO-360 series, specifically on older Mooney aircraft. I hadn't heard of this engine before. Quick internet results say that a new one runs roughly $33,000.00, 210 HP, 308 lb dry weight. Roughly 10% higher fuel burn than a IO-360, 7-28 lbs heaver, but 10-30 more HP. At first glance it would seem like a way to get more HP into a Cozy without going the rotary, diesel, or 6-cylinder routes. Just out of curiousity, has anyone looked at these? Quote I don't care, I'm still free. You can't take the sky from me. Link to comment Share on other sites More sharing options...
rickh Posted December 4, 2009 Share Posted December 4, 2009 I think xp-360.com had one advertised, maybe it was a 400? Regardless, they're bust. Aerosportpower.com has had one on their website for quite some time. <opinion> I've looked at them, but figured they were a punched out 360 using a standard 360 crank. Probably unfounded, I worry about the additional stress on the crank.</opinion> Rick Quote Rick Hall; MK-IV plans #1477; cozy.zggtr.org Build status: 1-7, bits of 8-9, 10, 14 done! Working on engine/prop/avionics. Link to comment Share on other sites More sharing options...
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