<VV> Turbos / OverHeating

[jvhroberts at aol.com]

 Bullfeathers! Water cooled turbo cars typically don't have these issues. I can drive my 300ZX twin turbo at full throttle until it goes past 170, and the only reason I don't keep going is the lack of long straight roads here. My Subaru Legacy GT, same deal. Even my old Subaru RX coupe, which by no means had sophisticated engine management, could run floored forever. My Corvair, on the other hand, ran out of cooling in a hurry. 

The reason? GM designed an 80 HP engine, and didn't do much to change the cooling situation for the 150/180 HP models. Heck, the turbine housing, in all of its orange hot glory, was right next to the cooling air intake!

 

John Roberts
 

 

-----Original Message-----
From: djtcz <djtcz at comcast.net>
To: virtualvairs <virtualvairs at corvair.org>
Sent: Mon, Sep 30, 2013 7:44 am
Subject: Re: <VV> Turbos / OverHeating



Corvair sensitivity/vulnerability to boost versus time is not unique. Engine 
management-wise Operationally things are so different nowadays, in large part 
because so many decisions are made by a Hal 9000. Lots of functions can be 
easily be optimized and run retty close to the ragged edge. Several modern turbo 
cars allow several extra psi of boost for 10 or 20 seconds of fun, then cut it 
back to "normal." The first one I can recall was a buddy's mid 80s Chrysler 
Lebaron Turbo. 

Chevy may have underestimated how most would be driven by the typical owner, or 
maybe not. The expectation of that era was that a warning light or buzzer and a 
line or two in the owner's manual was sufficient to technically or ethically to 
keep drivers from hurting the engine or themselves. 
I think folks are even less likely to read the small print, thin papered, 50 
percent disclaimer, un-Google-able tome that comes packed in the glove box these 
days. 



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