(27-09-2011, 09:29 PM)George Wrote:

(25-09-2011, 12:31 AM)Manx Mist Wrote: I heard a few years ago that there is equipment available to accurately measure bore size through a plug hole.

Stroke can obviously be measured easily this way anyway, so if this technology does exist it will save a mass of time and money.

Has anyone got any info on this? I know this doesnt address things like camshaft lift and other internal specs for supersport regs but at least it could be used for the basic capacity checks.

And thinking about it, if it doesnt already exist, it wouldnt be that hard to make such a device to accurately measure bore size, i've got a design in my head already.

F1 have been using something similar and also at some german SB meetings, not sure of the exact equipment but have heard from many European riders that it has all but put an end to cheats.

With my engines Im not allowed to touch them, they are built and maintained by a well known WSS team at great expence. I would not have a problem with a seal being put on the engines and checked at the end of the season or at re build stage which is 1200k

i'm thinking along the lines of something which would enter down into a plug hole and thread wires out in possibly 4 directions to the bore wall, basically a dial gauge working through 90 degrees, although it is possible that lasers could take the place of the wire probes.

I've got a basic design sussed but i'm running out of space on the back of my fag packet here!