PG Turbos?? Re: <VV> Re: TURBO BENT VANES

[Mark Corbin]

A GM engineer who worked on the Corvair and addressed the CORSA convention
one year responded as to why it was never offered. He said that they found
that with just two speeds in the Corvair's powerglide, the situation arose
that when the trans shifted, you were running high boost and suddenly also
had low RPM. What happens then is that you tend to blow the heads off the
engine. With a three-speed, they might have gotten away with it, though.

-Mark


> [Original Message]
> Subject: Re: PG Turbos?? Re: <VV> Re: TURBO BENT VANES
>
> At 08:17 AM 9/11/2007, FrankCB at aol.com wrote:
> >
> >Tim,
> >     Actually, you CAN have Corvair turbos WITH  powerglides.  I think
it was
> >Billy Bruce who ran his turbo PG at the  dragstrip at the Louisville, KY
> >Convention and set the FTD of around 13 seconds  for the quarter mile. 
And
> >personally I think turbos are a GREAT match with  automatic 
> >transmissions.  How else
> >can you make boost even BEFORE  the car begins to move??  Just remember
when
> >you do this you're dumping  lots of HP into the auto trans fluid which
raises
> >its temp VERY fast.   Better use synthetic ATF.
>
>
>
> There's another thing to consider with a turbocharged engine behind a 
> Powerglide:
>
>
> It's easy to stand on the brake and gas at the same time which allows 
> a LOT of boost to build fast, while stalling the converter which not 
> only heats the ATF up *Right Now*, it heats up the engine just as 
> fast, as in REAL fast.   Sure, it launches the car hard...
>
>
> But do this on a regular basis and a month later it's gonna be 
> blowing blue smoke out the tailpipe, seen it happen more than 
> once.   Running a 'Vair engine behind a Powerglide will work out IF 
> you're careful.   If you go romping on it "regular" via stalling the 
> converter at lights, the engine won't last very long even if it's 
> done up with "all the good stuff".   Again, seen it happen.   You'll 
> *Have* to be very careful about those stall-starts; it's very rough 
> on the engine and the transmission.
>
>
>
> ...there was a reason the Spyder and turbo Corsas weren't available 
> with a Powerglide transmission.   ;)
>
>
>
> tony..   
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