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Re: Was: Oil preferences Now: 1600cc's

To: Roger Elliott <relliott@cjnetworks.com>
Subject: Re: Was: Oil preferences Now: 1600cc's
From: Joe Curry <spitlist@gte.net>
Date: Thu, 11 May 2000 13:26:06 -0700
Roger, Actually it goes back even further than that.  The roots of that engine 
were in the Standard Eight which had an 803 cc version.

The bore was 58 mm with a stroke of 76 mm

The 948 was a bored out version of the 803 (63 x 76 mm)

Then came the 1147 (69.3 x 76 mm)
1296 (73.7 x 76)

After that, it was determined that they could not safely increase the bore so 
to increase the displacement, they could only tackle the
stroke.  So the 1500 (actually 1496) has a bore of 73.7 mm and a stroke of 87.5 
mm.  

Joe

Roger Elliott wrote:
> 
> As I understand it the Spitfire engine was based on the 948 Herald engine
> and was increased to 1500 (boy were those original engines over
> engineered).  The Midget ended up using the Spitfire engine mainly because
> the MG engine was close to the limits of increased size.
> 
> So while 1275 to 1380 and 1500 to 1600 may be the about same percentage
> increase, you are really looking at both being increased from 948.
> 
> Roger Elliott
> 
> On Thu, 11 May 2000, Bill Miller wrote:
> 
> >
> > Joe,
> >
> > Sorry to take so long replying to you, I wasn't ignoring you, I was out of
> > town for work.
> >
> > I tried a quick search, all I came up with was info on a BMC A series
> > engine.  Same principle though.  This guy took a 1275cc (originally the A
> > series were 948cc) all the way up to 1380cc in his bugeye.  1275 -> 1380 is
> > 8.5%;  1500 -> 1600 is 6.5%  so we are basically talking the same thing
> > here, if not a little more.  His website is:
> >>
> > Take Care,
> > Bill
> >

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