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Obviously, the TS motor benefits from a more modern design, while the Nord motor, by comparison, is a rather quaint (if wonderfully so) survivor from an earlier age.
That being said, JimK's book (2nd. ed.) gives us some reasonable comparisons:
Ref: page 19 for flow measurments of various Nord mods versus a a TS. There is a significant improvement when a modified Nord head uses 46mm intakes. It would appear that, relative to stock, modified Nord heads show a significantly greater improvement than similarly modified TS heads do to stock TS configurations (which already benefit from an inherently better design).
Ref: page 66 for dyno runs which show various Nord motors versus a modified TS.
The Nord motors tend to get "on the cam" a bit later than the TS. At higher RPM's the similarities between the two motors are more pronounced.,
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Jim . . . '72 Super 1300, '70, 1750GTV, 2nd series,
'62, Lancia Flaminia Zagato3c, 2nd series
Last edited by 180OUT; 07-24-2008 at 03:37 PM.
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