[serialk11r]

Originally Posted by cRiPpLe_rOoStEr

After all, if there was really the need for an all-new engine to the Volt, I believe a 2-stroke one would make more sense due to the compactness and lesser dead weight while operating on EV mode. Lesser maintenance would be another advantage.
workaround ideas to discuss among friends: Two-stroke engines: still a viable technology?

Actually this is a pretty good idea. Running at a single speed should make scavenging a pretty simple affair (I guess you might have to adjust for air density differences, but I think that's not a big issue if you allow some reasonable amount of trapped exhaust). Have cam actuated valves, fuel injection of course, and a very high static compression ratio. If you really want to chase down the last bit of friction rods can be lightened since they don't have a strong load reversal and thus fatigue resistance requirements.

GM is good friends with Eaton, they can surely strike up a deal for some superchargers with better rotor sealing for scavenging purposes.