Neil Cotty wrote:
> I read somewhere recently that 18V heads had '39cc'
> combustion chambers whereas 18G heads had somewhere
> between 42.5 and 43.5cc heads (according to Bentley)..
>
> Is that 18V figure baloney?
Nope ...
> ...[snip]...
> I also read (probably from a list member) that the MGB's
> rough idle (and I guess operation) is partially due to
> the inequality of the combustion chamber size across all
> four chambers ... [snip]
Yep ... but key word is partially ... any variance in swept
and/or unswept volume between cylinders will have an effect
(like rod length, block face not parallel to crank). Don't
forget cylinder head port variances.
**********************************************************
Safety Fast! ... larry.g.unger@lmco.com
'61 MGA 1600 MkII
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