triumphs
[Top] [All Lists]

Re: Spitfire 1500 engines

To: TGENTR@wgc.woodward.com
Subject: Re: Spitfire 1500 engines
From: "Lee Daniels, daniels@tamu.edu" <DANIELS@alchem.chem.tamu.edu>
Date: Wed, 15 Nov 1995 11:36:02 -0600 (CST)
Cc: triumphs@autox.team.net, daniels@alchem.chem.tamu.edu
>This is just a guess, but maybe there is no physical reason that a short 
>stroke engine produces less torque. 

Of course there is.
Come on guys, think about it:

A longer stroke means the crankshaft has "longer" lobes on it.  Then, for 
instance, when the stroke is half-way between TDC and BDC,  the lobe is 
essentially horizontal.  So you have a longer "lever-arm" to use to turn the 
crank, i.e. it's physically easier.  Presto! More torque -- at the expense of 
lower revs!

-Lee "chemists can think, too" Daniels

Lee M. Daniels   Laboratory for Molecular Structure and Bonding   Texas A&M 
 daniels@tamu.edu            (409) 845-3726          Fax (409) 845-9351
 '74 TR6  '77 MGB


<Prev in Thread] Current Thread [Next in Thread>