Burnt Piston

[tprJJ49707]

Hey, I heard a "harley performance guru" talking about the need to dump factory/oem type pistons as they will likely get a hole burned in them...

This occuring after a installation of cams, pipes, and head work.

Has anyone heard of this happening outside of a manifold leak or timing/lean
condition? The claim is apparently based on current fuel not being 98 octane as when the iron was new...is this legitimate or marketing of performance pistons?

[flathead45]

hasn't happened to me with my 72 but I do run premeium (even though its still not 98 octane) and I haven't heard of it happening to any of my friends bikes , so this is new to me
my trumpit holed a piston twice but that was due to the timming advancing way to far (also 11.5-1 compretion ratio)

[Gone]

Forged pistons will make any bad tuner look good