George Lendich wrote:

Basically what Dave is doing is using the stock waste gate controller
and setting the MAP by using the throttle. He currently limits his
MAP to around 30 inches of Hg during takeoff and climb. This seems to
work real well and so far his turbo is living. No modifications to
the waste gate have been made. Throttle settings are around 3/4.

In these pictures the EGT after the turbo is  889 C or about 1630 F.
I suspect if you run higher MAP the turbo's are failing from
a combination of over temp and over speed. Mistral promised to
install a turbo tach but I don't know if they will get around to that
before they change out the stock turbo.

Paul,
I just saw an unusual twin Turbo set-up on a 13 B - Both were 12 A turbo's
with 13B compressors. They bolt together OK!

The stock Wastegates were completely removed leaving only the hole.

The bolt-up exhaust flange accommodated the exhaust and the wastegate as
separate exits (separate pipes) - the two into one pipes were for the
exhaust and the wategates ( separately), with a single wategate off some
Truck - apparently worked extremely well !!

Can't see why this couldn't work for a single Turbo as well!!

My first learning curve on a Turbo
George (down under)

 
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