[TheNovaMan]

Anybody here have any opinions on the Somender-Singh grooves?

 

[TheNovaMan]

In the 80s NASCAR teams played with all manner of chamber mods, including grooves and dimples. Darin said it best in a ST thread that he'd never seen that type of approach work in a properly designed chamber.
Duke

See, that's just it. Today's small, efficient chambers don't really need any help, but I was thinking maybe big, old, inefficient chambers might benefit from some swirl-inducing modification(s). Particularly something lazy like a big, open-chamber BBC head, which require pistons with huge domes.