Lee Willis
Posts: 1991
Joined: 7/27/2005
Status: offline
|
Well, I have seen a full roll cage in a convertible (I am sure the top would not go up over it), but it was necessary to meet requirements at the track, and it did make a big difference in chassis stiffness (heavily over-powered/modded cars with drag slicks tend to visibly bend themselves you can see twisting and distortion of clearance along doors, rockers, etc., when launching hard). The roll cage wasn''t pretty though.
Frankly, I think you will find that you don''t need a four point harness at an sanctioned track where you don''t also have to have a roll cage: without the latter you will not be allowed in a class race where you need the former. This is one reason you don''t see convertibles in the really low ET classes, the other is that coupes and FHCs have greater chassis stiffness and people choose them for drag cars and track cars.
_____________________________
2007 Aston Martin Vantage Prodrive
Lincoln MKZ "Grandfather car"
''98 Z28 with iron LS 408, NOS, tricks, street driven mid 9s (sold to my youngest son for $1, Aug 28, ''07)
''02 SCd 427 cid ZO6, 704 RWHP, sold Aug. 28, ''07
|
Printable Version
4 point harness - 
