Hi, I am having a very esoteric debate. What is the factory correct thickness of the body on the Competitzione 2.2mm or 1.6mm - or are we completely wrong ??
I think you’re looking for precision where it doesn’t exist. Even if Pininfarina started with nominal 2.0mm sheet metal, they wouldn’t have been exactly that. And after those panels had been beaten into shape, they would be somewhat thinner. So a finished car isn’t going to have a uniform body thickness. Matt
Think your right and good advice. Did find this post after some nifty searching Wow. A technical question on a topic I actually know something about. The alloys of aluminum have varied, and it's almost impossible to say exactly what sort of sheet was originally used. Having said that, it's pretty clear that the thickness of aluminum sheet used on most racing models was around 1mm or 0.040". When repair panels are made, they are generally made with 3003 sheet and 1100 welding rod. The H numbers quoted above indicate the heat treat, and are pretty irrelevent for this use, as the metal will almost always be annealed to dead soft (often many times over) in order to be shaped. The "flexibility" and maleability" you refer to, Horsefly, is this softness achieved by annealing. 3003 can be annealed over and over again, and work hardens as it is shaped.
Would love to see any current photos of California spiders that have been gathered over the past few years. Here’s the ex Alain Delon garage find car at ville De Este Image Unavailable, Please Login Image Unavailable, Please Login
At a French FOC event last week-end: Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
Ran across another interesting file of project photos, including this one, from my archives ... Copyright TTR Image Unavailable, Please Login
Call me old school, but I was taught that gentlemen do not (publicly) reveal identities of their private affairs/encounters.
More from my work archives... Copyright TTR Before (& this, as they say, was just the tip of the iceberg): Image Unavailable, Please Login After: Image Unavailable, Please Login
Chassis #2015 after I completely rebuilt the motor in 1994. It was painted red for many years before returned to its' original white. Second photo during the LeMans events. Image Unavailable, Please Login Image Unavailable, Please Login
Same car at the 10th Annual FCA Nationals at the Grosse Point Yacht Club, Grosse Point/MI, 30 May 1973. Marcel Massini Image Unavailable, Please Login
