Serpent release Mega ZX21 DSII+
Serpent have released the updated version of their ZX21 DSII, the DSII+. Featuring and updated combustion chamber and piston, the new motor allows more consistent tuning as well better reving thanks to the smaller contact between the piston and the liner. The engine has the same part number as the previous DSII and is available now.
Source: Serpent [serpent.com]