In an earlier post, Denise Thorpe indicated that all USA cars had high
compression engines. I guess that implies all MGAs?.
As usual I hav ebeen beaten to the punch, and Jay Tilton has indicated that
the rubber bumper Bs are low compression. While I am in Oz, both my Bs
are American imports, and the roadster (rubber bumper) has a low
compression engine. I believe the GT ('72) also has a low compression
engine, but have not checked that one out in detail yet.
However, the point of the posting,
- does anyone know what the octane rating for "Super" and "Unleaded" in
Australia is?.
The rodaster runs satisfactorily on either, with no sign of pinking/run on.
Originally it had a Zs carb and Catastrophic convertor, but after a
slight problem with the head, it now has an older head with twin HIF4s, and
the pre-catastrophic convertor exhaust.
I am not as knowledgeable as a lot of others on the net, and my manual does
not actually cover the Californian version engine, and therefore I do not
have the recommended timing setting, nor the method of setting the
timing using a strobe light. Does one disconnect the vacuum tube or not,
does 10 deg static timing equate to 16deg at 1000rpm?.
Look forward to an answer/discussion on the point,
Thanks,
Arthur down under
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