X-Virus-Scanned: clean according to Sophos on Logan.com From: "Bill Bradburry" Received: from vms173023pub.verizon.net ([206.46.173.23] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTP id 6997021 for flyrotary@lancaironline.net; Thu, 24 Jul 2014 11:38:27 -0400 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.23; envelope-from=bbradburry@verizon.net Received: from Desktop ([unknown] [173.57.170.65]) by vms173023.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0N98002YW3ERZD50@vms173023.mailsrvcs.net> for flyrotary@lancaironline.net; Thu, 24 Jul 2014 10:37:40 -0500 (CDT) To: "'Rotary motors in aircraft'" References: In-reply-to: Subject: RE: [FlyRotary] Re: Rv7 renises p port Date: Thu, 24 Jul 2014 10:37:42 -0500 Message-id: MIME-version: 1.0 Content-type: multipart/alternative; boundary="----=_NextPart_000_0026_01CFA72B.4C9A59D0" X-Mailer: Microsoft Office Outlook 11 Thread-index: Ac+nF8PppQrVNqlgTVW+R9SD4bh0fQAPQZcg X-MIMEOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 This is a multi-part message in MIME format. ------=_NextPart_000_0026_01CFA72B.4C9A59D0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Anyone, What changed on the list that caused the email addresses to go away about last March? The posters address used to show on each msg and now it doesn't. In order to find a poster's address, you now have to search for an msg from them that is older than around March 2014. Wha Hoppen??! Bill _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Thursday, July 24, 2014 3:17 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Rv7 renises p port Hi bill Will try again , email won't let me send pics to lancair, if u like send me your email and I'll post some pics of what I've done. As per ecu I'm running a microtech ecu which has worked well for quite a while. I don't have a rev limit set so the prop limits the rpm, I don't see over 7100 with the current prop. I've installed taller apex seals to help cpe with flex over the open ports over the original renises ones, otherwise engine is stock apart from all original inductions systems totally removed, just 2 x 2" pipes coming strait out of the rotor housings, all extra holes blocked off totally. All manifold was custom made by myself with new injector placements. I'm quite impressed with the improvement over what it used to be like, I can get airborne approx 100 ft earlier now. Cheers Christian Sent from my iPad On 24 Jul 2014, at 2:01 pm, "Bill Bradburry" wrote: James, I don't know if you are using Tracy's EC-2 or 3, but it has a rev limiter somewhere around 7500 rpm. I don't know what would happen if you invoke this limiter but it might be scary. :>) I try to limit my Renesis to about 7200 rpm in order to stay away from the limiter. Do you have any pictures of the P Port for the Renesis? Did you substitute any parts to do this? Bill _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Wednesday, July 23, 2014 7:45 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Rv7 renises p port I don't know jack about slippage, but I think it is the percentage difference between actual distance traveled and theoretical distance traveled if your propeller corkscrewed through the air with no thrust. B I found a prop slip calculator online and for 86 inch pitch, 2.85 gear ratio, 7000 rpm, 180 mph, I get 10% slip. B Granted the calculator was for boat propellers, but I don't think it matters as long as the units are correct. B There has to be some slip because there would be no thrust otherwise. B So what is considered a reasonable or good amount of slip? B Using Bill's numbers 86 inch pitch, 2.85 gear ratio, 7000 rpm, 200 mph, I get 0% slip. B That can't be right! On Fri, Jul 4, 2014 at 7:19 AM, Bill Bradburry wrote: Christian, It seems that you have a lot of prop slippage at cruise. B I think that at that prop rpm you should be getting 200mph if you had no slippage. Bill -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Thursday, July 03, 2014 4:01 PM To: Rotary motors in aircraft Subject: [FlyRotary] Rv7 renises p port Well hi all Just thought I'd throw out there the mods I,ve done to the renises in an rv7'. Well the p ported engine is now back in the plane and running well, over the standard short manifold that was originally in the plane I have gained around 400 static rpm, same prop and gearbox combo, 2.85 ratio, this equates to allot more hp at takeoff, just shy of 2300 prop rpm, I'm running a prince p tip prop at 68" x 86" pitch, At 8000 ft it is turning 7000 at 180 mph tas which is an improvement of 25 mph on previous tests, . So next plan is bigger prop and less pitch to let it rev to 7500 in strait and level. Cheers Christian Rv7 renises Aus Sent from my iPad -- Homepage: B http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html -- Homepage: B http://www.flyrotary.com/ Archive and UnSub: B http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0026_01CFA72B.4C9A59D0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Anyone,

=

 

What changed on the list that = caused the email addresses to go away about last March?  The posters address = used to show on each msg and now it doesn’t.  In order to find a = poster’s address, you now have to search for an msg from them that is older than around March = 2014.

 

Wha = Hoppen??!

 

Bill

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Thursday, July 24, = 2014 3:17 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Rv7 renises p port

 

Hi bill

Will try again , email won't let me send pics to lancair, if u = like send me your email and I'll post some pics of what I've = done.

As per ecu I'm running a microtech ecu which has worked well for = quite a while.

I don't have a rev limit set so the prop limits the rpm, I don't = see over 7100 with the current prop.

I've installed taller apex seals to help cpe with flex over the = open ports over the original renises ones, otherwise engine is stock apart = from all original inductions systems totally removed, just 2 x 2" pipes = coming strait out of the rotor housings, all extra holes blocked off = totally.

All manifold was custom made by myself with new injector = placements.

I'm quite impressed with the improvement over what it used to be = like, I can get airborne approx 100 ft earlier = now.

 

Cheers

Christian

Sent from my iPad


On 24 Jul 2014, at 2:01 pm, "Bill Bradburry" <flyrotary@lancaironline.net> wrote:

James,

 

I don’t know if you are using = Tracy’s EC-2 or 3, but it has a rev limiter somewhere around 7500 rpm.  I = don’t know what would happen if you invoke this limiter but it might be = scary.  :>)  I try to limit my Renesis to about 7200 rpm in order to = stay away from the limiter.

 

Do you have any pictures of the P = Port for the Renesis?  Did you substitute any parts to do = this?

 

Bill =

 

From: = Rotary motors in aircraft = [mailto:flyrotary@lancaironlin= e.net]
Sent: Wednesday, July 23, = 2014 7:45 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Rv7 renises p port

 

I don't know jack about slippage, but I think it is the = percentage difference between actual distance traveled and theoretical distance = traveled if your propeller corkscrewed through the air with no thrust. B I found a = prop slip calculator online and for 86 inch pitch, 2.85 gear ratio, 7000 rpm, = 180 mph, I get 10% slip. B Granted the calculator was for boat propellers, = but I don't think it matters as long as the units are correct. B There has to = be some slip because there would be no thrust otherwise. B So what is considered = a reasonable or good amount of slip? B Using Bill's numbers 86 inch pitch, = 2.85 gear ratio, 7000 rpm, 200 mph, I get 0% slip. B That can't be = right!

 

On Fri, Jul 4, 2014 at 7:19 AM, Bill Bradburry <flyrotary@lancaironline.net> wrote:

Christian,

It seems that you have a lot of prop slippage at cruise. B I think that = at
that prop rpm you should be getting 200mph if you had no slippage.

Bill


-----Original Message-----
From: Rotary = motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Thursday, July 03, 2014 4:01 PM
To: Rotary = motors in aircraft
Subject: [FlyRotary] Rv7 renises p port

Well hi all
Just thought I'd throw out there the mods I,ve done to the renises in = an
rv7'.
Well the p ported engine is now back in the plane and running well, over = the
standard short manifold that was originally in the plane I have = gained
around 400 static rpm, same prop and gearbox combo, 2.85 ratio, this = equates
to allot more hp at takeoff, just shy of 2300 prop rpm, I'm running a = prince
p tip prop at 68" x 86" pitch,
At 8000 ft it is turning 7000 at 180 mph tas which is an improvement of = 25
mph on previous tests, . So next plan is bigger prop and less pitch to = let
it rev to 7500 in strait and level.

Cheers
Christian
Rv7 renises Aus


Sent from my iPad
--
Homepage: B http://www.flyrotary.com/
Archive and UnSub:
http://mail.lancaironline.net:81/lists/flyrotary/List.h= tml


--
Homepage: B http://www.flyrotary.com/
Archive and UnSub: B http://mail.lancaironline.net:81/lists/flyrotary/List.h= tml

 

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