Given the aerodynamics of a Series, I think you'd rue the day that you
geared it so high (low numerically). Probably would take 400hp to push the
brick at that speed. 3,000rpm @ 70mph would probably be a lot better as the
engine would be well into its hp and torque curve so would actually be able
to hold that speed going up a hill. It may even develop enough hp to
actually get it up to 80mph. Though why anyone would want to drive a Series
over 65 is beyond me. If the 3436rpm @ 95mph is correct, you'd only be
turning 2351rpm @ 65mph. Only a few hundred rpm above the base of the
torque curve and well below the hp peak. You'd probably have the
performance of a stock 2 1/4 because the engine would never get up on the
torque/hp curve. If the first figures are right, performance would suck
even more. I think its a little presumptious to gear a Series to have the
same cruise rpm of a 250mph racer.
Don't want to rain on your parade, but your figures just didn't seem to be
based on reality.
Aloha
Peter O
>From: "Kirk Hillman" <kdhillma@telusplanet.net>
>Reply-To: lro@works.team.net
>To: <lro@Works.Team.Net>
>Subject: LRO: Re: Engine/Trans Swap
>Date: Sun, 10 Jun 2001 21:40:59 -0600
>
>Adam,
> I was looking into this swap, but ended up scrapping it. Though, it
>should be noted that it wasn't because of viability. Other 'things' came
>up
>(read 'of the opposite gender'). I am curious about your desire to use the
>Muncie 420. I had trouble locating one at all. They were built a LONG
>time
>ago. Around here at least the SM-465 is much easier to locate but still
>isn't a piece of cake. Sure, you get a slightly lower 1st, but I am told
>the 420 is simply far less 'friendly'. Louder and more clunky etc.
> I am a little more curious about your calculations though. 95 MPH @
>3000 RPM? Unless I am messing the numbers up this is what I get with this
>set-up:
>
>SM-420
>Ashcroft High Range LR case (0.871 High)
>4.10 Diffs
>33" tires
>
>=3436 RPM @ 95 MPH (152 KPH)
>
>If there is something wrong with my calculations let me know. I was making
>a lot of decisions based on them. I have an Excel spreadsheet laid out
>that
>I would email you if you like with a number of transmission/transfer case
>options.
>
>Kirk
>
>
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