National Staff Greg G. Posted April 26, 2012 National Staff Share Posted April 26, 2012 Technical Bulletin--4-25-12 Corvette C5 and C6 Models--B-pillars and Driver side floor: Removal of the B-pillars (and OEM/BTM arch) above the window sill lines is permitted if replaced with a NASA-legal full competition racing cage. For TTA-TTF, the BTM roof line must remain intact, and the window frame and roof channels must be left intact. For TTS/TTU, any changes to the roof line will result in the Modification Factor assessment listed in the rules. The OEM/BTM driver side floor top layer of aluminum and balsa wood under the seat may be removed without a points or Modification Factor assessment for the purposes of gaining head room for the driver. Looking from the underside the floor pan must be unchanged, and the OEM/BTM metal supports where the seat studs attach must be unaltered. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.