At 7:02 AM +1000 4/4/99, Rodney Orr wrote:
>Can anyone tell me if the 3.55:1 ratio indicated on the face of my tach
>relates to what the final drive should be? If so, isn't it supposed to be
>3.7:1 for a '70 NA TR6?
>Thanks,
>Rod. '70 TR6 CC55899L
The tachometer is independent of the final drive. The 3.55:1 MIGHT
indicate the ratio between the engine revs and the speed of the tachometer
cable. This would be the gearing in the distributor, etc. For a similar
example, the ratio between speed of the drive shaft and the speedometer
cable is 2.5:1 (I think).
AFAIK all carb TR6s did have 3.7 diffs.
Trevor Jordan
74 TR6 CF29281U
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