Originally posted by Picard
Gday
When you guys are talking about running 1.2 dia Piston holes are you modifying the standard piston holes or are there 1.2 dia pistons available?
I don't think they are available. That's what MS mentioned in the Talk Backs of one of his race reports. Something to do with the mold.
So the only option is to use a 1.2 mm drill bit and open up the existing 1 mm holes. I know it's difficult on the adjustable ones. That is why I use the fixed number of holes type of piston. Easier to drill but the down side is it is not adjustable.