X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from elasmtp-scoter.atl.sa.earthlink.net ([209.86.89.67] verified) by logan.com (CommuniGate Pro SMTP 6.0c2) with ESMTP id 5902858 for flyrotary@lancaironline.net; Sat, 24 Nov 2012 21:30:53 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.67; envelope-from=n360tg@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=YVzwmbZNvJ3QQZrrBiYSwwTLcxH0PN0df8lFII3LqKtChYqlphuxfwNcbRFIar3e; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [166.147.108.14] (helo=[172.20.10.2]) by elasmtp-scoter.atl.sa.earthlink.net with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.67) (envelope-from ) id 1TcRz9-0001lA-Gn for flyrotary@lancaironline.net; Sat, 24 Nov 2012 21:30:20 -0500 From: Thomas Giddings Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: multipart/alternative; boundary=Apple-Mail-1--306226079 Subject: Re: [FlyRotary] Re: Defined Autoworks parts site / Mark's 20B Date: Fri, 23 Nov 2012 21:59:55 -0600 Date: Sat, 24 Nov 2012 21:30:12 -0500 In-Reply-To: To: "Rotary motors in aircraft" References: Message-Id: <099B825C-98BC-4AE4-B515-A8A1CC601106@earthlink.net> X-Mailer: Apple Mail (2.1085) X-ELNK-Trace: 77b0437ff618fec294f5150ab1c16ac080818c873b4a4d1ba16785e9dddfffb980aa9be9cab72d91350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 166.147.108.14 --Apple-Mail-1--306226079 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Joe: I have a similar system for intake as Mark complete that I am not = going to use. It is for a 20B. It is complete intake and Throttle = bodies. KIND REGARDS Thomas Giddings n360tg@earthlink.net 727 858 1772 On Nov 24, 2012, at 11:23 AM, = wrote: > Mark, >=20 > =20 > Do you have any info on the throttle bodies like brand and source? = Can you expand on problems with the slide throttle? How thick was the = slide? Thanks for any help >=20 > =20 > Joe Berki >=20 > Limo EZ >=20 > =20 > 13b P Port >=20 >=20 > On Saturday, November 24, 2012 7:36 AM, Mark Steitle = wrote:=20 > > Doug, >=20 >=20 > > > That's true. It is almost like an entirely different engine, = especially the MAP readings. I guess you could compare it to installing = a radical cam in your family driver. It would drastically alter the = driving characteristics. Tracy is working on a fix for the MAP issue on = P-Port engines. It only hits two addresses between idle and 4500 rpm. = Hopefully, the fix will help it to run smoother through the transition. = =20 >=20 > > > It also required a whole new intake. I tried the slide throttle, but = there were some issues I didn't especially like, so I built one using = three 46mm snowmobile throttle bodies. It has worked out great. It = especially improved the idle characteristics, probably due to having the = primary injectors located downstream of the throttle plates. I had some = fuel pooling issues with having them located upstream. The snowmobile = tb's also operate much smoother than the slide throttle. At idle, = vacuum sucks the slide against the downstream side plate with a = significant force, making it difficult to work the throttle. > >=20 > > And... it now burns more fuel than before. DUH! I could throttle = back and fly slower, but who wants to do that??? >=20 > > > Mark S. >=20 > > > On Sat, Nov 24, 2012 at 3:43 AM, wrote: > > > Mark Steitle wrote: > =20 > >"...What I can say is that I picked up 20+ knots on the top end over = the original side-port 20b motor". > =20 > That is outstanding Mark! I'd almost bet that your PP modification = was one of the "easiest" ways to gain those hp numbers vs. a turbo / = supercharger add on? Probably wouldn't seem like it as you were going = through the "tweaking" phase, etc... :) > =20 > Doug=20 > =20 >=20 > > >=20 --Apple-Mail-1--306226079 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=us-ascii Joe: I have a similar system for intake as Mark complete that I am not going to use. It is for a 20B. It is complete intake and Throttle bodies.
KIND REGARDS
Thomas Giddings
727 858 1772



On Nov 24, 2012, at 11:23 AM, <jskmberki@windstream.net> <jskmberki@windstream.net> wrote:

Mark,

 

Do you have any info on the throttle bodies like brand and source?  Can you expand on problems with the slide throttle?  How thick was the slide?  Thanks for any help

 

Joe Berki

Limo EZ

 

13b P Port


On Saturday, November 24, 2012 7:36 AM, Mark Steitle <msteitle@gmail.com> wrote:
> Doug,


>
That's true.  It is almost like an entirely different engine, especially the MAP readings.  I guess you could compare it to installing a radical cam in your family driver.  It would drastically alter the driving characteristics.  Tracy is working on a fix for the MAP issue on P-Port engines.  It only hits two addresses between idle and 4500 rpm.  Hopefully, the fix will help it to run smoother through the transition.   

>
It also required a whole new intake.  I tried the slide throttle, but there were some issues I didn't especially like, so I built one using three 46mm snowmobile throttle bodies.  It has worked out great.  It especially improved the idle characteristics, probably due to having the primary injectors located downstream of the throttle plates.  I had some fuel pooling issues with having them located upstream.  The snowmobile tb's also operate much smoother than the slide throttle.  At idle, vacuum sucks the slide against the downstream side plate with a significant force, making it difficult to work the throttle.
>
> And... it now burns more fuel than before.  DUH!  I could throttle back and fly slower, but who wants to do that???

>
Mark S.

>
On Sat, Nov 24, 2012 at 3:43 AM, <DLOMHEIM@aol.com> wrote:
>
Mark Steitle wrote:
 
>"...What I can say is that I picked up 20+ knots on the top end over the original side-port 20b motor".
 
That is outstanding Mark!  I'd almost bet that your PP modification was one of the "easiest" ways to gain those hp numbers vs. a turbo / supercharger add on?  Probably wouldn't seem like it as you were going through the "tweaking" phase, etc... :)
 
Doug 
 

>


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