Because, you ignerent Texian barbarian air head, kind of close data is
better than no data, and it will show any gross [the kind you and I
understand] differences.   With any luck at all.  Unless the magnetic
declination of the moons of Jupiter interferes of course.  That's always a
given.

Mike

> From: Stan Wilder <wilden1@JUNO.COM>
> Reply-To: Stan Wilder <wilden1@JUNO.COM>
> Date: Mon, 15 Jul 2002 18:26:06 -0500
> To: vanagon@GERRY.VANAGON.COM
> 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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