60K & Bigbore vs 60M bore both modified by OMI

[Xtreme*76]

Hi to all
as I wrote in the object
I would like to know
if did you calculated the area of those bores
(I mean the enlarged 60K bb and 60M)
and please could you tell me which is the bigger?
Thank you very much for your precious help
Best regards
Giuseppe

[DavidH]

The OMI big bore carb is 10.8 mm.

The 60M-C that comes on the OS 91 SZ is 10.6 mm

As for the actual area size. I don't know if anyone has calculated it. The bores are oval shaped.

I would think the OMI big bore 60 K carb at 10.8mm is larger than the 60M-C carb at 10.6MM.

James at OMI only enlarges the bore on the 60K. He says it is not worth the time to enlarge the 60M-C bore .2 mm


David