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Old 01-07-2015, 08:29 PM   #8
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Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
As promised, here are the technical spec's for my roll cage;
  • 1.75" tube diameter
  • 0.095" tube wall thickness
  • 4130 alloy chromolly steel
  • Tig welded joints with 70S rod (specialty for 4130 welding)
  • 6-point style cage
  • Sheet metal gussets in critical areas
  • Custom driver's side door bars increase strength compared to standard NASCAR style
  • Large area base plates mig welded to structural areas of the chassis
  • "A" pillar vertical tubes (aka FIA bar)
  • Windshield frame bar, door bars, and main hoop are all stich welded to the chassis for increased rigidity
  • "Knee bar" and steering column mounts to replace factory dash bar
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1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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