The dark windowless interior of Hornks special assembly room was designed to keep prying eyes from gleaning his secrets.  He guarded his vast knowledge of power systems like a she bear over her cubs, and would refuse visitors of any kind, entry into this santuary.  It wasn't that he was eccentric or anything like that, it's just that he was a private individual, at least that's what his neighbors say.  

He then began to build the quinsuchular twin thruster powered engine.  It would achieve great mileage, he was pretty sure, and with the multi quantum torque which it would output, it would certainly outstrip any racer at the Indy 500.  Alas, he sighed, this is only for an old bus, but what the hell, it's the doing that matters.

ahh! Perfection