<VV> 1965-1967 110HP with a/c low compression engine

[BobHelt at aol.com]

In a message dated 10/24/2006 6:53:00 AM US Mountain Standard Time,  
tonyu at roava.net writes:

IMHO,  those "bowl" shaped open chamber heads were certainly a bad 
design, makes  me wonder why they ever existed in the first  
place. 


Tony,
The bowl heads, as you called them, served their purposes.
 
For the turbo engines, these heads allowed max hp to be developed as  they 
didn't have the restricting squish area. With the turbo, turbulence was  
sufficient without the squish. In other words, the turbo provided the turbulence  and 
the squish wasn't needed to to that. These heads were only used on the  
1964-66 turbo engines and had a "real"CR of 8.01 which was lower than the 95  heads 
with 8.28 CR.
 
The open chamber heads, used on the AIR engines also served their purposes  
in that they lowered the unburned hydrocarbons present in squish heads.
 
Regards,
Bob Helt