Date: Mon, 15 Jul 2002 19:46:24 -0500
Reply-To: Stan Wilder <wilden1@JUNO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Stan Wilder <wilden1@JUNO.COM>
Subject: Re: tiico's, subies and diesels oh my...
Content-Type: text/plain; charset=us-ascii
In all fairness Chris a new Honda Civic would stomp the hell out of any
300 hp Vanagon and especially Westy.
Frank Grunthaner already posted a list of possible conversions and their
published HP ratings.
I can remember Zoom Gear had a Idiot Wheel that worked like a Flight
Computer and it had the capabilities you are putting into a spreadsheet.
I haven't seen anything similar on the Internet because I haven't looked.
I'm sure that the application you are working on will be of some value to
some people.
Keep up the good work.
Stan
On Mon, 15 Jul 2002 19:52:43 -0400 "Christopher Berchin"
<ctb1@peoplepc.com> writes:
> > Chris wrote: "Note that all are approximations."
> > --------------------------------
> > Stan replys: Then why bother?
>
> Chris counter-replies: Because approximations are the best you can
> ever
> hope to have, even in the engineering world, until you actually
> build a
> prototype and test it. It's good for A-to-B comparisons and
> prediction of
> trends, if not exact numbers. For example, it shows how changing
> your tire
> size will affect your accelerations, though not at the *exact*
> number of
> g's. It will show you graphically how hugely a 240-hp Vanagon would
> stomp a
> 1.9 WBX like mine, and so on. Most of the world's creations were
> simulated
> using approximations first. : ) Basically if you're thinking
> about
> spending a lot of money on some sort of engine, this can help show
> you how
> much bang you'd get for your buck.
>
> Chris
>
>
> ----- Original Message -----
> From: "Stan Wilder" <wilden1@juno.com>
> To: <ctb1@PEOPLEPC.COM>
> Cc: <vanagon@GERRY.VANAGON.COM>
> Sent: Monday, July 15, 2002 7:26 PM
> Subject: Re: tiico's, subies and diesels oh my...
>
>
> > Chris wrote: "Note that all are approximations."
> > --------------------------------
> > Stan replys: Then why bother?
> >
> > Stan Wilder
> >
> > On Mon, 15 Jul 2002 18:55:13 -0400 Christopher Berchin
> > <ctb1@PEOPLEPC.COM> writes:
> > > << I'm just curious if there is a definitive place to look for
> > > comparisons on these engine conversions? >>
> > >
> > > I wouldn't call it "definitive," but I'm currently working on
> > > finishing a
> > > spreadsheet with graphical analysis of the 2.2 Subie, 3.3 Subie,
> 1.9
> > > and 2.1
> > > WBX engines. Basically I've plotted the thrust curves for each
> > > engine in
> > > each gear over the entire rev range. What I'm working on now
> is
> > > adding the
> > > effects of powertrain losses (i.e. frictional losses that are
> > > internal) and
> > > aero drag. I have it figured out, I just haven't finished it
> yet.
> > > Once
> > > done, I can post the graphs - right now, the only thing that
> really
> > > "has it
> > > all" is my comparison of the 2.1 WBX to the Subaru 2.2, but only
> for
> > > top
> > > gear. I have drag and powertrain loss effects only for fourth
> gear
> > > for
> > > those engines - what's left to do is to do the rest of the
> gears
> > > and
> > > engines.
> > >
> > > The whole thing is an Excel spreadsheet, so you can play with
> tire
> > > sizes,
> > > gear ratios, and dyno cuves to see what happens. Note that all
> are
> > > approximations, but so far my 1.9 WBX chart says that I should
> top
> > > out at
> > > about 91 mph, and since the top speed is really 88 mph in
> reality,
> > > that's
> > > close enough for gov't work.
> > >
> > > If anybody wants the final results, drop me a line and I can
> send it
> > > along
> > > to you. Once I have something close to complete, I can upload
> the
> > > graphs at
> > > my Imagestation albums.
> > >
> > > To add more engines, all you would need is dyno data and gear
> > > ratios. Punch
> > > it in on the spreadsheet, do a little Excel work, and bammo - a
> new
> > > comparison is born.
> > >
> > > Chris
> > >
> >
> > ________________________________________________________________
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>
>
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