Algodoo

sorry it doesnt work i need a way to attach it to stuff

Frank, some help would be nice

UPDATE: if u can make it so the spring and hinge are attached to what u r making it will work dependent on certain circumstances i do not know about

I've always called it a power core ot just a glitch core.

Put the red circle in front of the object you want to hinge it to, put the blue circle behind it, then add center hinge to the red circle. Once you have it hinged, you can move the object it's hinged to with springs between the vehicle and the power core. The spring pulls or pushes on the body of the vehicle, but the balancing force on the power core disappears in the cacophony of crazy forces inside it.
It's a lot like grabbing yourself by your hair and lifting yourself into the air.

Because of the ridiculously fast and near-unstoppable spinning of the power core (+inf friction makes it a deadly weapon, in fact), it's best to attach any propulsion springs as close to the center of the core as possible.