Back in the day, frame tubes on 917 racers were all interconnected, completely sealed off, then pressurized thru a dedicated valve before each race. A reading was taken afterwards...lower pressure usually indicated a crack that needed repairing before the car raced again. The team almost always found that the 917 frames would develop cracks at some point during a race.
__________________
'67 912, '70 911T, '81 911SC, '89 3.2 Targa - all sold before prices went crazy
'25 BMW 230i coupe - current DD
'67 VW Karmann Ghia convt. & '63 VW Beetle ragtop - ongoing projects
Last edited by rcooled; 05-16-2017 at 08:12 PM..
|