<VV> Wet Dream engine

[Sadek Charles H DLVA]

Seth,
One of the issues with the exhaust stacks is sealing into the aluminum head.
There are two ways to fix this.  Either, make a tube of aluminum around the
exhaust stack, welded to the fins to keep the exhaust stack press fit out of
the water contact area, or extend the aluminum out to the edge of the head
and make a flat flange fitting as you describe.

For water jackets, one must weld metal to aluminum heads and not
braze-remember the initial Crosleys (Bill Elliot will remember-he probably
has one...).

The thru studs are a real problem.

Chuck


-----Original Message-----
From: Sethracer@aol.com [mailto:Sethracer@aol.com] 
Sent: Thursday, July 29, 2004 1:05 AM
To: virtualvairs@corvair.org
Subject: <VV> Wet Dream engine

There has been a lot of discussion about the heat problems of the Corvair 
Motor. I remember an article in an engineering magazine at least 30 years
ago 
about a fellow that welded appropriate metal to the Corvair head and changed
it 
to water cooling. If this were accomplished, the cooling fan air could be
used 
to cool the cylinders only. Water could be circulated past the heads and 
cooled separately. Okay - There are engineering challenges to surmount. If
you 
started with a pair of 140 heads, and machined them to take Weber Manifolds
- 
either for webers or FI throttle bodies, then modified the exhaust tubes to 
present a flat face which could be sealed against water. Other outstanding
issues 
would be the stud holes through the head. Just brainstorming here. Any
thoughts 
or impressions? - If you want to get really strange, the Big Block Chevy has

the same bore to bore centerline as the Corvair.  Hmmm?  I wonder  .  .  .
.  
-  Seth Emerson