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Bill, I have been told that Rotec in Melb Aust, makers of a small
radial, also make a brilliant slide throttle. I am happy for the
rotary to idle at 2000, or a little less at it give a prop speed
of 6-700. Again it is up to we owners as to what is acceptable
for the given cost. My TB cost $110 from the wreckers. The
original dual TB came from EFI and cost more like $1200. They
also make great gear if you can pay. Neil
On 10/20/2016 8:07 AM, William Jepson
wrote:
Neil,
I like his ports, not the same as ours but a good setup
also. Ours are configured with the butterfly close to the
inside. It really seems to help the idle. Our PSRU has an
adjustable mesh and everything will idle down to 1100 engine
RPM no problem. (while swinging a prop on the dyno.) I plan on
a proper slide throttle, (hard slide with bearings), to go
even further. I'm on Paul Lamar's newsletter and while there
is a lot of dross, there is some good info there. Recently
there was a post from someone that had info on the Merc. C111.
I got several items of information from the drawings and
pictures, also 1 patent. They put the throttle butterflies
exactly where we do.
Bill
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