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I am going to design my 20b exhaust, from plastic to start with. when exhaust pipes join do they necessarily need to jump up in volume/dia.? the exhaust is never flowing thru two at one time, correct? my welder, Tom, with lots of race car experience, says that if I don't use a 3-to-1 collector, and go to what he calls a log-type exhaust (with a plenum), that the "log" should be of a larger diameter. the pics I see here for turbos at least don't seem to follow that logic. the 3-1 design strikes me as difficult, heavy, and expensive. Tom says that the bellows are expensive, $120/ea, but wasn't sure how the log-type exhaust would handle the heat stress with it's inherently short runs. The 3-1 works well for that because of the extra flex in the design.
WWED? (what would Ed do?) (if only straight pipes would be acceptable!)
Kevin Lane Portland, OR
e-mail-> n3773@comcast.net
web-> http://home.comcast.net/~n3773
(browse w/ internet explorer)
----- Original Message ----- From: "Dale Rogers" <rogersda@cox.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, December 10, 2004 4:18 AM
Subject: [FlyRotary] Re: In-line Oil Filter - reprise
From: Bulent Aliev <atlasyts@bellsouth.net>
Date: 2004/12/10 Fri AM 06:51:08 EST
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: In-line Oil Filter - reprise
Looks very good Dale. You can put one or two sensor holes or PSRU oil feed
port too?
Bulent
Yes. In fact, that was my original intent - to make a
block with bosses for temp and pressure sensors. This one
just got finished first.
I'm also working on another, larger, block that put the
oil filter hanging down at 30* from level, instead of the
current (nearly?) verticle. It, too, will have bosses
drilled and tapped for sensors (or oil feed).
Dale R.
COZY MkIV #1254
Homepage: http://www.flyrotary.com/
Archive: http://lancaironline.net/lists/flyrotary/List.html
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