<VV> LM turbos and no lower shrouds

[jvhroberts at aol.com]

 Ayep!! Somehow, going from 80 to 180 HP and expecting the cooling to be 'adequate' seems ludicrous. 

 

John Roberts
 

 

-----Original Message-----
From: Bryan Blackwell <bryan at skiblack.com>
To: Virtual Vairs <virtualvairs at corvair.org>
Sent: Mon, Oct 24, 2011 8:13 pm
Subject: Re: <VV> LM turbos and no lower shrouds


Hi folks,

Just thought I would throw out a couple facts from GM:

- The turbo engine was known to not be able to cool at WOT for extended periods.  
The engineers decided, however, that the driver would run out of courage prior 
to the engine destroying itself.

- Chevy documented reduction of head temps with the lower shrouds removed.  See 
the GM test data reprints available from Clark's for the exact numbers.

An 80 HP engine will not overheat with all the cooling tin in place, that's what 
the system was designed for.  All the higher HP engines push the margin of 
safety built in to those original engines, sometimes beyond capacity.  OTOH, if 
you are driving your Corvair at say, 70 MPH, it doesn't much matter which engine 
it has, the HP requirement is the same.

--Bryan
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