In rec.aviation.owning Jay Honeck wrote:
: YMMV... I suspect the big six on a Cherokee probably has worse fuel distro
: than the four in mine.

: Yeah, I've spoken with a couple of O-540 experts, and they both say that 100
: degrees apart is about as good as possible with the horrible fuel
: distribution of a normally aspirated Lycoming six-cylinder engine.
: --

I had a friend with an O-540 that built a fuel distribution "swirler" (like
the thing on TV). Basically, a ~4x4" piece of stainless steel. Cut 10 or so
pie-shaped wedges around a carb-outlet-sided circle scribed in it. Take those
pie-shaped wedges, bend them 70-80 degrees off the plate, and give them all a 45
degree twist. Put inline between the carb and bottom of the oil pan/intake. It got
his cylinders closer together in EGT. Of course doing such modifications on anything
other than an experimental engine/airframe would immediately cause it to crash, be
illegal, immoral, reckless, dangerous, irresponsible, as well as cause global
warming, world hunger, and eventually make the sun burn out.

-Cory


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* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
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