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Date:         Mon, 29 Jul 2002 22:56:02 +1200
Reply-To:     Andrew Grebneff <andrew.grebneff@STONEBOW.OTAGO.AC.NZ>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Andrew Grebneff <andrew.grebneff@STONEBOW.OTAGO.AC.NZ>
Subject:      Re: What is your dream van? Friday Topic
In-Reply-To:  <003c01c2366e$75d08ee0$6ab12744@mnhwkn01.nj.comcast.net>
Content-type: text/plain; format=flowed; charset=us-ascii

>2 cycles are lighter, more power efficient, having a power stroke each time
>the piston rises.  No crankcase+no oil changes, less moving parts.


Yuk. Twostroke. Pemix. Stink.


Actually, it is possible to build a fourstroke-based twostroke.
Toyota designed & built a DOHC 2-stroke (I have seen photographs).
The cams run at crank speed. Zero valve-overlap, of course. With
variable valve timing this could be the ultimate 2-stroke. And no oil
in the gas! But I doubt it will ever reach production, as it was made
years ago.
--
Andrew Grebneff
165 Evans St, Dunedin 9001, New Zealand
<andrew.grebneff@stonebow.otago.ac.nz>
Seashell, Macintosh, VW/Toyota van nut
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