Ed--do not fasten it to the plane. As your engine settles this will change the angle of the exhaust, if attached to the plane it will rip out or the exhaust will come lose at the end. The only connection of the exhaust should be directly to the engine and each section of the exhaust to the other exhaust pipes.
Paul Hershorin
--- On Sun, 1/15/12, Lorn H Olsen <lorn@dynacomm.us> wrote:
From: Lorn H Olsen <lorn@dynacomm.us>
Subject: [LML] Re: Exhaust system
To: lml@lancaironline.net
Date: Sunday, January 15, 2012, 10:39 AM
From: "Ed Gray" <egraylaw@swbell.net>
Date: January 13, 2012 6:26:16 AM EST
Here’s a question for Chris, Paul, and others with knowledge of L2 exhaust. My 360 with Superior IO 360 is ready for engine start up. The exhaust is a 4 into 1 built by Sonic Headers in Princeton, Mn. It is beautiful work and ceramic coated. Sonic provided me with a clamp to fit over the large pipe (collector exit). This will need to be fastened to the underside of the fuse in some manner, but I question whether it is necessary. The collector is bolted to two of the headers with stainless dogbones and 3/16 bolts. The headers are of course very solid on the block. The additional clamp would need to
be rubber mounted to allow engine movement. I see no way the collector or any part of it can ever depart the plane. Is this clamp necessary?
I have been flying my O-320 with standard factory exhaust for over 1,800 hours without a clamp and without any problems. I do have the 2 exhausts strapped together with a stainless hose clamp over exhaust wrap. See post on 01/11/12 for a photo.
I just have completed the install of a 2 screen Dynon Skyview system with ap and Dynon txpd with traffic, Garmin SL30 radio to give ILS presentation on the Dynon screen. I have no steam gage backups. With dual screens, backup batteries and dual ADHRS I feel that I have enough redundancy. Does anyone have input or comment? This plane may be one of the first with no round gauges anywhere.
I like backup steam.
Next issue, my battery is an Odyssy 650 (650 cranking amps) which has been sitting around for 5 years. It does not turn the crank fast enough for starting. Is 650 amps enuf for a 360 (8.5 compression). I probably need a new battery but don’t want to buy one undersized.
I have been using an Odyssey PC925 for over 7 years and it still starts the plane better than the new Gill and/or Concords that I had in the past. I have mistakenly left my master on for about 7 days. The battery was able to recover. I believe that Bill Harrelson uses a set of either PC625's or PC680's, one as main and one as a backup. Bill has enough for his O-320. (Bill pop-in).
I originally purchased the battery from B&C, model # BC100-1. The price from B&C is still good at $150.00.I really appreciate this website-very informative! I will post pics when the plane is together. Look for N360 ZG at Oshkosh!
Ed Gray, Dallas
-- Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst DynaComm, Corp., 248-345-0500, mailto:lorn@dynacomm.usLNC2, FB90/92, O-320-D1F, 1,800 hrs, N31161, Y47, SE Michigan
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