I have been thinking about the problem of  turbochargers Overheating ,
Over running,  in most set ups, in the AC rotary conversion .  My ideal
is to locate the  turbocharger farther Down Stream of the exhaust
manifold where's theirs  less  heat  and pressure to contend with . It's
my understanding  that the car manufacturers  mount them as close to the
manifold.  as possible to reduce Turbolag which isn't as  much a
problem in AC as it is with cars .
Clifton

The P47 had the turbo in the tail cone.

Paul Lamar

Was the exhaust pipe pipe on the P47 insulated?

Turbos recover heat and mechanical energy from the exhaust.  Moving the
turbo further downstream will reduce the heat energy recovery.  I don't
know how efficient turbos are at recovering heat energy in this type of
application.  How much cooler is the exhaust stream after running through
the turbo (as compared to running through a locked turbo)?


Regards,

Matt-


Good question Matt. I only have half an answer.

Dave Leonards exhaust after the turbo runs about:

Second pic is MAP 37 Engine RPM is 5560.
Dave has a 2.17:1 gear box. EGT exiting
the turbo is 766 centigrade or about 1410 F.

So the regular NA 13B exhaust temps run 1600 to 1800 F.
Dave does not have a thermal couple on the inlet to the turbo
so I am not sure what his TIT is.

Paul Lamar

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