From: Epijk@aol.com
Message-ID: <95.baece10.28506a94@aol.com>
Date: Thu, 7 Jun 2001 01:26:44 EDT
Subject: Re: 200 HP on a 320 OK?
To: lancair.list@olsusa.com
MIME-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: quoted-printable
Reply-To: lancair.list@olsusa.com

          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
          <<  Lancair Builders' Mail List  >>
          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> 
>>
Steve:
"IO" means injected/opposed. "O" means carbureted/opposed (ie. not injected)=
.=20
360 is the displacement. Suffixes: A, C and D suffixes (with respect to IO
-360 only) are canted-valve "200 HP" engines with bigger fin area on heads=20
and about 3/4" wider than the straight valve (nominally) 180 HP versions (B=20
and E). (O-360's have different suffix designations which I don't have=20
memorized; don't deal with carbureted engines that much.)=20
"A"'s have the Bendix injector servo mounted on the front of the sump/plenum=
;=20
"C"'s have it mounted on the rear. I forget what is unique about the "D"'s (=
I=20
think they're helicopter engines; can research it later if needed). The next=
=20
digit and letter in the suffix (like "1E" in B1E) identify accessory case an=
d=20
configuration differences. If there's a 4th digit (as in C1C6) it signifies=20
the engine has the internally counterweighted crankshaft for absorption of=20
torsional excitation. "6" (as in IO-360-C1C6)  means it has a 6th and 8th=20
order couterweight. "5" (like on an IO-540-K1A5) means 5th and 8th order. If=
=20
it has a 5th letter ("D") it means the engine has one of those stupid dual=20
magnetos (as in IO-360-A1B6D).  BTW, I have NEVER had an unmodified "200 HP"=
=20
Lyc on my dyno that actually produced 200 HP (SAE, corrected to 59=B0F, 29.9=
2=20
in. hg.). You might ask this guy in NY just how he determined 205 HP out of=20
his B1E. (220 is do-able at 2700 on a straight-valve engine, but with lots o=
f=20
changes and skill. Lots of these claims are wet-thumb estimates based on=20
wishful thinking.
Jack Kane
EPI, Inc.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
LML Builders' Bookstore:   http://www.buildersbooks.com/lancair

Please send your photos and drawings to marvkaye@olsusa.com.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>