<VV> Corvair Fan

[Kent Sullivan]

Well, for one thing, production numbers on the Corvair were super-low
starting in 1967. The Corvair was almost canceled after 1966. Why invest in
a car that is in its twilight years?

--Kent
-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Crawford Rose
Sent: Sunday, July 10, 2005 2:39 PM
To: JVHRoberts at aol.com; virtualvairs at corvair.org
Subject: Re: <VV> Corvair Fan

Forget mine, consider GM's clever reverse logic. When it couldn't adapt the
car to changing emissions conditions in California, it deleted the
inadequate Air Conditioning, turbo charger and 140 heads. After protest, it
gave back 140 heads but detuned cam timing. Consider all those extremely
costly redesigns to the product line necessitated by the limitations of the
cooling system and emissions regulations. There was a redesign of the
cooling system but it never made production. Despite the incentive to
implement its redesign of the cooling system in 1966 (profit), the company
did not put any redesign the cooling system into production to enable basic
air conditioning to accompany emissions equipment. Why do we suppose GM made
that choice?

Also, elimination of the 1960 choke mechanism and the direct air heater
accommodated the creation of station wagons and expansion of the vehicle
line for trucks/vans.

Crawford
  ----- Original Message -----
  From: JVHRoberts at aol.com<mailto:JVHRoberts at aol.com>
  To: crawfordrose at msn.com<mailto:crawfordrose at msn.com> ;
virtualvairs at corvair.org<mailto:virtualvairs at corvair.org>
  Sent: Sunday, July 10, 2005 3:47 PM
  Subject: Re: <VV> Corvair Fan


  Given that ALL turbo Corvairs overheat if you keep your foot into it long
enough, AC Corvairs seem to struggle in hot weather, and 140 HP Corvairs run
better cold than hot, I'd say it's inadequate, and Chevy opted for a one
size fits all solution that only works on the lowest HP models. The more
powerful engines simply need better cooling than Chevy gave them. And
regardless of your reverse logic, the market demand for air conditioning and
more power was clearly there. No need for water cooling, just a better fan. 
  Parts cost over the counter will ALWAYS be a LOT higher than the
manufacturing costs. By a BUNCH. The revision to the 1961 cooling system was
done to accomodate the Direct Air heater, a cost savings over the gasoline
fired unit. 
  So, why is the stock cooling system marginal on the high output and AC
engines? Simple, Chevy never designed the right cooling system parts for
these engines. 
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