Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,872
Boxer- Probably good advice. What they did was keep the stroke the same (71 mm) and sleeve the block for a smaller bore (66.8 mm). Turbo boost was pretty high at 1.05 atmospheres (!5+ psi), and the cars, from what I can tell, retained the old two valve heads of the pre-QV cars. If those still had the welded, sodium filled exhaust valves, not a good combination with 15 psi boost.
Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125
Every day I look around, and if nobody is shooting at me, it is a pretty good day.