Chris Gardiner wrote:
The only difficulty I had with the Revmaster is that it is slightly different at the back and interfered with my intake manifold ( Zenith 1821 carb.)
Is your intake a Great Plains that angles back toward the center for a few inches on top and then goes straight down on each side, then a 90 turn in to meet in the middle? If so, that's what I also have. There's another incarnation of the GP intake that stays further outside. If it's not a hassle, a photo of exhaust and intake would be helpful, if you happen to go to the airport. I've looked at the Revmaster exhaust and it looks less compact in several ways, but maybe it's just an optical illusion.
The photos at http://revmasteraviation.com/?p=183#more-183 also shows the same thing I see on John's exhaust, that the collector and exhaust pipe point down at a steep angle and extend a lot further down than my current exhaust. I'm afraid I'd loose 10 mph with that exhaust, and would certainly have to do major surgery on the cowling, on the bottom and maybe at the exhaust ports, as the radius on the ports looks larger too.
A measurement from the bottom of the engine vertically to the bottom of the collector would be a good data point for me. I could re-angle the exhaust to make it more in line with the airflow, which is how the current one is. N56ML's exhaust is maybe an inch from the bottom of the plane, but I put a thin stainless sheet and fiberfrax behind it to withstand the heat.
The stainless steel is a no-brainer, and this is probably the way to go in the end, if it'll clear all the crap on the firewall without a major under-cowling redo.
Thanks to all that replied... Mark Langford [email protected] http://www.n56ml.com _______________________________________________ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options To UNsubscribe from KRnet, send a message to [email protected]
