What makes an S an S?

[merbesfield]

There is not doubt, the early S's are a blast to drive. Especially when you blow past some high powered muscle car guy.

[72targa]

Depends on the year. I'll begin the discussion with 1972:

• The VIN
• The fuel injection pump
• The fuel injection system dimensions (bigger)
• P/C dimensions
• The resulting HP
• The way the power comes on at 4500 rpm when the S cam kicks in
• The air dam
• The brakes
• The labels

What did I miss?

[sweetE]

My first 911 was ordered thru Bozzani Porsche in Monrovia, CA. I picked the car up in June of 1973 and drive it directly off the showroom floor.
I wish I had not sold it.
It had all the 911 S components, except the engine.
It was officially a 911T.
Had I known what I've learned since, I would have ordered a 911E and I would still have owned it today.
I have owned two really nice 911E's , a 1971 and a 1973.
I do however own a #'s matching 1967S and it is amazing!!
From the experience of the above cars,the S is surely a unique model.