Again on Re: <VV> Re:95 heads on turbo.

[FrankCB@aol.com]

In a message dated 7/22/04 8:35:34 PM Eastern Daylight Time, N2VZD@aol.com 
writes:
my only input on this is i had more than one set of 95 heads here at one time 
that looked exactly like turbo heads(no step). if he is talking about using 
those on a turbo i would think it would be aok?i cant find the info right now 
but i think it is well laid out in one of the tech guides in chart form. how 
about smog 110 heads? they should be ok also...cc them and see?  only 
thinking 
out loud here...regards tim colson 
now going into hiding fer a while
Tim,
    Yes, I do believe that in the later years, the 95 heads did go open 
chambered.  In my previous post I was thinking of the earlier 95 hp heads (still 
LMs)  that had the step (quench/squish area).  Check Bob Helt's invaluable 
Classic Corvair book for all the details, which he covers very well, including how 
to make sure you have the optimum "quench"..  But even the later 95s still 
don't have the alloy exhaust valve guides.  You might get away with not using 
those if you don't stay on high boost for more than a few seconds at a time.
    But just remember to let the turbo cool down (without shutting off the 
engine) for a few minutes after a good run.  If you shut down the engine too 
soon, the oil stops flowing through the turbo bearing and there is NO water 
cooling to take the heat load so it goes into decomposing the oil and will 
eventually block up the oil flow passages in the bearing.  And with NO oil flowing 
through the bearing, guess how long the turbo wheels and shaft will last???
    Frank Burkhard