ORIGINAL: locktite401
Actually another ABC Elfin solution just occurred to me. I've had some good results sending ABC liners to Ray Aronica the well know US Cylinder "pincher".
It's a long shot but he may just have a r/c car engine jig that would fit the Elfin.
It's quite possible that he may be able to reset the taper enough to run it.
His details are:
[email protected]
http://www.rayaracing.com/
Ray
Ray, perhaps restoring pinch in the lower portion of liner above the ports may encourage the piston rim to catch in those ports edges, much the same as a ring would in an unbridged port.
The upper portion of a squeezed liner has no such problem.