According to the TriumphTune manual (sixth edition) the standard rocker
ratio is 1.5:1 so you are pretty close in your measurements :) They do
not mention any other ratios so I assume all TR6's have the same
rockers. I also checked in the Roadster factory catalog and
they supply the same rockers for all years.
George Osmundsen wrote:
> I'm trying to do some calculations having to do with the valve train
> on my '76 TR6. Does anyone know what the rocker arm ratio is for this
> car, and is it the same for all the TR6's? I've tried to calculate
> the ratio using measurements taken from the car and the best I can come
> up with is about 1:1.51. Have looked in all my references and can
> find no factory data on this spec.
> Skip Osmundsen
> '76 TR6
> '60 TR3
Steve Chandler - Chandler O'Bagy - email@example.com