Bryan;
I use a 3-barrel TWM TB on my 20B with
44mm barrels. One barrel (which divides into the 2 runners) for each
rotor. It seem to work quite well. As Ed mentioned, and supported by Paul Yaw’s work, high velocity
in the barrel is a good thing. Maybe you could cut the thing in half and use 2
barrels? I use the injector port in the TB for MSD (Rochester) injectors, and use
the stock primary in the housings.
Al
-----Original Message-----
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Bryan Winberry
Sent: Saturday, February 07, 2009
5:57 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] renesis
intake possibility
I have a chance to purchase a TWM throttle body(see
attch pic) at a very low price. I have a couple questions for
the group.
The inlets are 42mm (appx 1.65 in.).
Is this too big to the point that they would be incompatible with the
injectors? I plan on using 1-1/8 and1-1/4 in runners.
Also, the bosses are sized for Bosch,
Rochestor, or Lucas injectors. Does this necessarily eliminate my using
the stock Renesis injectors?
This setup also would allow the use of a lightweight
airbox thus simplifying the intake system from a manufacturing
standpoint.
RV7, Renesis,RD-1C,EC3,EM3 (in the pipeline I
hear)
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