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IO-390 now certified


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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?

I don't care, I'm still free.

You can't take the sky from me.

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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 Hall; MK-IV plans #1477; cozy.zggtr.org

Build status: 1-7, bits of 8-9, 10, 14 done! Working on engine/prop/avionics.
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