X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 14 May 2008 11:35:42 -0400 Message-ID: X-Original-Return-Path: Received: from fg-out-1718.google.com ([72.14.220.155] verified) by logan.com (CommuniGate Pro SMTP 5.2.3) with ESMTP id 2919578 for lml@lancaironline.net; Mon, 12 May 2008 22:44:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=72.14.220.155; envelope-from=jffisher@gmail.com Received: by fg-out-1718.google.com with SMTP id 22so2175529fge.1 for ; Mon, 12 May 2008 19:44:02 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=d5CGxmHX1/quBbxODtva9Wx84eQjlf3yuGrIB6WDnEuFp8TV9TD/3L+SvONWjdxtZ5by+hPmqYgv7w+DQQBXwddVTQXC8tvY6NTnxEdcFfQEhczG6fPeEFJQ5+veDwAA85xcJ4yOXtWQnv0m1SbxgSHD8avW/pQbdpFVfJIEukM= Received: by 10.78.135.20 with SMTP id i20mr2086095hud.18.1210646642559; Mon, 12 May 2008 19:44:02 -0700 (PDT) Received: by 10.78.157.8 with HTTP; Mon, 12 May 2008 19:44:00 -0700 (PDT) X-Original-Message-ID: X-Original-Date: Mon, 12 May 2008 21:44:00 -0500 From: "Jeremy Fisher" X-Original-To: cskelt@earthlink.net Subject: Re: Horizontal Induction X-Original-Cc: lml@lancaironline.net In-Reply-To: <380-22008521311442765@earthlink.net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_5882_16310552.1210646642551" References: <380-22008521311442765@earthlink.net> ------=_Part_5882_16310552.1210646642551 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Chris, Thank you for saving me a load of work and money. I would never have thought that the ramifications of using an apparently more efficient 360 setup would be so severe. This list has paid off for me yet again by letting me gain from others' experience. I will go with the vertical induction! Jerry On Mon, May 12, 2008 at 8:14 PM, Christopher Skelt wrote: > > Jerry, > I bought a Lycoming IO-360M1A/B with horizontal induction and set myself > for some unexpected work and expense. However, this wasn't becaause the > induction was horizontal, but because the sump is wider and the inlet pipes > are too close to allow the exhaust pipes to fit in between them. The > standard Snowline exhaust recommended by Lancair fouled up against the wider > sump so I had to get a custom exhaust made at $$$$. We weren't able to get > this to fit between the inlet pipes, so it passes around them, widening the > frontal area. This meant that the lower cowl didn't fit, and I had to cut > out some material and make chipmunk cheeks to clear the exhaust. We weren't > able to rig a crossover exhaust inside the cowl, so I have two parallel two > into one pipes. Whether the supposed extra efficiency of horizontal > induction more than offsets the power loss for not having a crossover will > become clear when I fly. > > If you're going with fuel injection, make sure you get the bracket that > offsets the fuel injection (four legged) spider from the center of the > engine to give you clearance for the upper cowl. > > If you want a forward mounted governer, you'll need to put a little power > bulge on the upper cowl (and be prepared for a lot of tinbashing to make the > baffling fit over the front of the engine. Not a big issue. > > Make sure you get the shorter of the two dipstick options so you can close > the oil filler door in the upper cowl. > > Bottom line is it's possible, but the wide sump makes life awkward. > However, presumably the large oil capacity offers better cooling etc. > Whether this is what Superior were alluding to, I don't know. > > Let me know if you need more details. > > Regards, Chris. > > ----- Original Message ----- > *From:* Jeremy Fisher > *To: *lml@lancaironline.net > *Sent:* 5/11/2008 7:01:32 PM > *Subject:* Horizontal Induction > > Has anyone fitted a 360 with a Lycoming engine with horizontal induction? > I am about to buy my engine, and am tempted by the apparent benefits of > using a horizontal induction sump. However Superior for one stated that > their orignal sump did not fit a 360. If you did fit an engine with > horizontal induction, what modifications to the cowling and the exhaust were > needed, and was it worth it? Thanks. > > Jerry Fisher > > ------=_Part_5882_16310552.1210646642551 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline
Chris,
 
Thank you for saving me a load of work and money.  I would never have thought that the ramifications of using an apparently more efficient 360 setup would be so severe.  This list has paid off for me yet again by letting me gain from others' experience.
 
I will go with the vertical induction!
 
Jerry

On Mon, May 12, 2008 at 8:14 PM, Christopher Skelt <cskelt@earthlink.net> wrote:
 
Jerry,
I bought a Lycoming IO-360M1A/B  with horizontal induction and set myself for some unexpected work and expense. However, this wasn't becaause the induction was horizontal, but because the sump is wider and the inlet pipes are too close to allow the exhaust pipes to fit in between them. The standard Snowline exhaust recommended by Lancair fouled up against the wider sump so I had to get a custom exhaust made at $$$$.  We weren't able to get this to fit between the inlet pipes, so it passes around them, widening the frontal area. This meant that the lower cowl didn't fit, and I had to cut out some material and make chipmunk cheeks to clear the exhaust. We weren't able to rig a crossover exhaust inside the cowl, so I have two parallel two into one pipes. Whether the supposed extra efficiency of horizontal induction more than offsets the power loss for not having a crossover will become clear when I fly.
 
If you're going with fuel injection, make sure you get the bracket that offsets the fuel injection (four legged) spider from the center of the engine to give you clearance for the upper cowl.
 
If you want a forward mounted governer, you'll need to put a little power bulge on the upper cowl (and be prepared for a lot of tinbashing to make the baffling fit over the front of the engine. Not a big issue.
 
Make sure you get the shorter of the two dipstick options so you can close the oil filler door in the upper cowl.
 
Bottom line is it's possible, but the wide sump makes life awkward. However, presumably the large oil capacity offers better cooling etc. Whether this is what Superior were alluding to, I don't know.
 
Let me know if you need more details.
 
Regards, Chris.
----- Original Message -----
Sent: 5/11/2008 7:01:32 PM
Subject: Horizontal Induction

Has anyone fitted a 360 with a Lycoming engine with horizontal induction?  I am about to buy my engine, and am tempted by the apparent benefits of using a horizontal induction sump.  However Superior for one stated that their orignal sump did not fit a 360.  If you did fit an engine with horizontal induction, what modifications to the cowling and the exhaust were needed, and was it worth it?  Thanks.
 
Jerry Fisher

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