Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Fri, 08 Nov 2002 09:29:50 -0500 Message-ID: X-Original-Return-Path: Received: from imo-d03.mx.aol.com ([205.188.157.35] verified) by logan.com (CommuniGate Pro SMTP 4.0) with ESMTP id 1856045 for flyrotary@lancaironline.net; Fri, 08 Nov 2002 02:14:02 -0500 Received: from Lehanover@aol.com by imo-d03.mx.aol.com (mail_out_v34.13.) id q.1a1.b611bfd (4320) for ; Fri, 8 Nov 2002 02:14:00 -0500 (EST) From: Lehanover@aol.com X-Original-Message-ID: <1a1.b611bfd.2afcbe38@aol.com> X-Original-Date: Fri, 8 Nov 2002 02:14:00 EST Subject: Re: [FlyRotary] Re: 12A vs. 13B X-Original-To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: AOL 5.0 for Windows sub 138 I think there are enough reckless drivers around, to make it possible for the rest of us to find an engine at the scrapyard.... A good point Martin. Most scrap yards have a core pile for engines with obvious damage that cannot be sold as complete running replacement engines because of a cracked front case or smashed front pulley set. This is a good place to buy a few engines real cheap. You might go through 2 or 3 teardowns, but you will probably end up with enough parts for a good running engine. My first rotary was $25.00 from a junk yard just south of the Charlotte Motor Speedway. > Im shure you and I have gone thru different schools.... > You cant get more displacement out of a engine by just turning the e-shaft > beyond 360 degrees...... > I agree with that. But for the people that run sanctioning organizations around the world, it is not obvious how to compare in some defensible way the potential output of a rotary to a piston engine. So in my rule book, My 12A engine is listed at 2292 CCs. It isn't that displacement at all. It is 1146 CCs and some little bit but that is of no interest to the people that make the rules. > > The data plate on the > > 12A > > powered cars says that the engine displaces 1147 CCs I suspect that > this > > is > > rounded off a bit to get a whole number. > > Rounded off ??? Why ?? In what way ??? > > Because Mazda says the engine is 1147CCs, times two that would be 2294CCs. The Sports car club says it is 2292CCs, and half of that would be 1146CCs. It is between 1147CCs and 1146CCs. Mazda rounds it up to get a whole number. The club rounds it down to get a whole number. I don't know the actual size but let us say it is 1146.0496CCs. Why not say 1146 or 1147? In this RPM range, the 13B is king. Soo...what happened to the 20B....???? In the comparison between the 12A and the 13B there was no 20B involved. Lynn E. Hanover