Inline twin & L twin (90° V twin) (and that stupid dummy)

Hey guys I have 2 new engines for use in any application, these engines rev higher than normal DC motors and are way cooler,
The first is a parallel using no counter weight, 180° crank and a dual fuel source, this engine revs very high and has no problems starting up, built in Tachometer also has plenty of room off the flywheel for activities. (Single layer explosives required)

The second is a more experimental 90° L twin, it has a moderate counter weight help balance the engine, it also uses 180° crank giving it a offset firing order, I believe this plus the weighted crank should give it slightly more low end power, it doesn't rev as high and only uses a single fuel source buts its just as cool, although this engine is a little more figitty at startup, built in tachometer and starter

(There may or may not be some place holder components I forgot and can't check without loosing all this writing)

Please someone put these to use, I love making them and would love to see someone put them to good use.