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1. 06:51 PM - Re: Converting IO-360 to O-360 (r falstad)
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| Subject: | Re: Converting IO-360 to O-360 |
For what it is worth, the GlaStar kit I bought partially completed came
with an engine that started out as a Lyc IO-360-A1A and was converted by
an overhaul shop to an O-360-"A1A". Because of the conversion, it is no
longer a type certified engine and can only be used in experimental
airplanes.
In addition to swapping out the fuel injection for a carburetor, it
appears that they changed out higher compression pistons, which if
memory serves are domed and produce about 8.7:1 compression to
flat-topped pistons that provide 8.5:1 compression.
Why do it? Two reasons: the original owner was an older gentleman who
wasn't familiar with fuel injection/was more comfortable with carbs and,
more importantly, "bumps" would have had to be added to the cowling to
provide sufficient clearance for the fuel injector tubes -- a lot of
fiberglass work.
The engine was originally built in the mid-1960's and the log books are
incomplete. But it has run strongly for the past ~170 hours. My best
guess is that it puts out about 180 HP, which is plenty of power for my
plane.
Best regards,
Bob
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