@Bullitt347
2 HP/CU IN was only attainable in the aircraft arena, 50 or so years ago. The Stop/Start feature you mention I have no clue about. Care to help me there? imp
Start/Stop was first used in the European market by several manufacturers as a pollution-reducing and fuel-saving strategy.
Essentially, under a wide range of conditions, when you come to a complete stop for more than a couple of seconds, the engine in the car shuts off, restarting quickly and automatically when the brake is released.
This is accomplished by a variety of strategies including:
-"Mild Hybrid" technology, in which there is an electric motor/generator bolted to the engine like an accessory and with the serpentine belt around it's pulley, as well as a higher-voltage battery somewhere in the car. GM played around with this extensively. Honda dabbled in it as well, but without the belt.
-Using a larger starter with higher torque coupled with a larger battery (frequently an AGM battery, at that) and a battery load/level sensor on one of the terminals (increasingly the negative terminal, which will inevitably lead to more electrical repairs when people used to seeing all sorts of
on the positive terminals of modern cars mistakenly hook up jumper cables and jump boxes backwards due to this change). The new 2.7L Ecoboost F150 is among the vehicles employing this strategy.
-Using a larger starter with higher torque coupled with an extra "auxilliary" battery elsewhere in the vehicle (usually the trunk). This is the strategy favored by several German automakers, Mercedes-Benz in particular.
While cars using the various start/stop systems are new, they work great. Once these engines have a couple hundred thousand miles on them, and the starters have been engaged a few thousand times more often than a normal starter, we'll see how they hold up.
Most start/stop systems are very un-intrusive, then there's Ford...
When I pull in through the gate at the shop, I'm supposed to wait until it closes before proceeding. If I haven't remembered to either turn on "Sport", "Max A/C", or just manually turn off Start/Stop, it'll shut the engine off in the middle of me turning my wheels in the anticipated direction I drive once the gate shuts, stopping the steering wheel entirely.