Message: 3
List-Post: krnet@list.krnet.org
Date: Sat, 3 Dec 2005 07:36:04 -0600
From: "Mark Langford" <n5...@hiwaay.net>
Subject: Re: KR> KR1
To: "KRnet" <kr...@mylist.net>
Message-ID: <001401c5f80e$82837110$0202a8c0@2600xp>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
As far as the 1600cc engine goes, I'll bet 98% of the folks on this list
shudder at the thought of flying behind a 1600cc VW engine. The power level
is just too far down there for any kind of decent climb performance. No
doubt it could be done, however.
>And 1600cc engines often don't have the
>larger "Force One" main bearing at the prop end, as done by Great Plains.
If you're going to the trouble of machining the case for the larger bearing,
you might as well make it an 1835cc engine, which itself isn't a stellar
performer either.
It's never a good idea to attach the prop to the pulley end of a stock VW
crank with the 92mm (1834cc) big bore kit without a Force One hub. A better
way to drive the prop using the larger cylinder bores is off of the flywheel
end of the engine but you'll need a reverse pitch prop. 92mm bore kits have
thin wall cylinders. A better choice is 90.5mm which is about 1700cc. When
running big bore cylinders too much material has to be removed from the case
which makes it weaker. If I needed more power I think I'd run a 110 hp
Corvair although I don't know how well it would fit into my KR-2.
-Joe
