Red pyle is dominant white over black breasted red.
Not sure if silkies actually have BBR but using partridges with dominant white can give birds that look like red pyles.
The white in silkies are nearly all recessive whites so crossing with a white silkie will not work, as it works "different" from dominant white.
To make red pyles will need to cross a partridge silkie with a bird that has dominant white(either a solid white bird you know has dominant white or a red pyle bird). It can be done straightforwardly by mating a bird with white to a pure partridge silkie each generation to fix the type and then when the type is good, cross two white birds together and pure pyles will happen.
Dominant white works by preventing black pigments from expressing but has almost no effect on any gold/red pigments. It's easy to realize by looking at a black breasted red rooster and then at a pyle. All the black's gone, leaving the red on hackles, saddle and wing bows.
Dominant white tends to have a dose effect, meaning little flecks of black tend to show up in the crosses.. however once the birds are pure for it, the white tends to be much clearer.
Unfortunately, dominant white also has effect on skin pigmentation.. that is partly why red pyles and leghorns have such clear skins and legs. It will be some challenge keeping darker skin on a silkie with dominant white, however I have seen pics of a silkie with dark skin though so it's possible..