TOPIC:

Hoping someone can help identify a pair of cams No marking on end but on the gear flangeunsure as to make but think maybe Megacycle!any help appreciated  

Megacycle have their marking on the sprocket flange the same but are only five digit for the Z9/1000 and GPZ1100's.
All starting with 470 and the two digits for the grind such as 55 which is on my race turbo cams.
Even by removing the zero's there isn't a 62,13, 49 or 09 in their range.

Didn’t know if they were older references Rob
Im struggling to find any similar number formats 
i can measure lift but was interested in the duration as well

I've not had any that look like that either and can't find anything similar.
You can measure the duration with a dial gauge and degree wheel once they are mounted in a motor though.
Chances are they use 0.050" checking lift.
You can also do it between centers but because the duration figures are quoted in crank degrees you will have to halve the figures when reading direct from the cam rotation.

wrote:

I've not had any that look like that either and can't find anything similar.
You can measure the duration with a dial gauge and degree wheel once they are mounted in a motor though.
Chances are they use 0.050" checking lift.
You can also do it between centers but because the duration figures are quoted in crank degrees you will have to halve the figures when reading direct from the cam rotation.


You will need to double the camshaft degrees to get the crankshaft degrees.


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wrote:

You will need to double the camshaft degrees to get the crankshaft degrees.


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Opps! Correct..
My typo. Should have read " you will have half the figures when reading direct from the cam..