What causes the "ping" when closing a 911 door?
 

OK, I'll admit that this is a silly question, but I'd really like to know just what "part" or "parts" inside the door cause that iconic and delightful "ping" when closing a 911 door.

Happy Sunday, all!

Rob

It's the sound of a machine that has been crafted out of a single piece of billet steel.:cool:

No door, and I mean no door shuts like a 911.

Metal tab for electric window wiring harness? When bent they don't ping, just what I heard.

What I hate is when someone who apparently is used to a domestic full size SUVgets in and rears back and slams it shut like they're trying to rip it off the hinges.:eek:

That's the beautiful sound of a well crafted cold drawn sheet metal with the right thickness and modulus of elasticity, not to mention the other "solid" parts that go together… :)

amen brother!!

^^...plus the essential patch of tar impregnated sound dampening affixed to the outer skin. You won't get the "ping" without the "patch."

this is a great thread. I cannot tell you how many times over the years that I have repeatedly opened and closed the door just to hear that sound.

magical and built like the rock of Gibraltar!!!!

this!!!!

Truly Porsche engineers pay much attention to the natural frequency of the structures, whereas other mfg's consider only the minimum strength/stiffness of the structures.

Even look at the early Cayenne and Touareg doors. Pretty much the same design. Yet Porsche used Aluminum, where VW used steel. ...and the Cayenne FTW.

I would imagine it has something to do with the internal door mechanism. My father's 356 does it to some degree as well.

It's a good door
 

When asked why the door design was unchanged for so long, Porsche Design Chief Harm Lagaay simply replied ‘it’s a good door’.

Each door is equipped with a Black Forest elf, as the door latches, He strikes a very small cymbal, denoting the door is firmly latched. You will notice that any door that has been hit, damaged or repaired by the ham fisted, the "ping" is gone. Express orders were given at the time of insertion, to remain on guard and report any intrusion. Furthermore if the repairs were not worthy of the engineered design, to abandon the post, cause further destruction via any means necessary. This included sunroof drain plugging, attacking paint materials for corrosive purposes, overload electricals, and sabotaging any and all oil lines and sealing surfaces. There are known instances of detonating of the head studs. Popping out the carbs? elves. Backfires on deceleration, elves. Caliper sticking, elves. Vacuum leaks, again elves. Crafty little buggers. Be nice to your 911, reassure the elves each time you close that door, tell them, good job! And take notice the "good" cars have "ping". It should be noted that this is very similar to the "smoke" injected at the factory in each and every wiring harness. A trick the Germans picked up from the Brits.

Beautiful!!! :) :) :)

These are great... I'm glad I asked ! :D

Sometimes I'll walk past the car out in the garage and open and close the door just to hear that wonderful sound.

You've never closed a door on a '57 Chevy Bel Air hardtop. :)

Sounds nearly identical.

It's more of a "blap", then a "ping".

The owner's main problem is asking people not to "drag in the door" when closing it.
Most people think they need to build up a 600MPH speed to get the door to latch.
I think the doors must cringe each time a non-Porsche passenger gets in!
Bob

It stirs the most basic of man' s primal emotions. It is like the tribal drum, the sound of a steel blade being unsheathed from it's scabbard, the blacksmith's hammer in the forge, the perfect cast, hitting the sweet spot of the bat, the perfect drive off the tee.