X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=eO9tc0h1 c=1 sm=1 tr=0 a=UmkYa9AZFJEwcQacvEqPdQ==:117 a=a8X7JH4lJw878OzOw2zZAA==:17 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=x7bEGLp0ZPQA:10 a=K7ySfSCCDxUA:10 a=dq6fvYVFJ5YA:10 a=pjdaNNIBAAAA:8 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=jJrOw3FHAAAA:8 a=HXAAHQU5PJu8ITcn2lsA:9 a=ge45qb8OjdFbDd9b:21 a=Hy8jOK8tgxFJLzob:21 a=QEXdDO2ut3YA:10 a=-FEs8UIgK8oA:10 a=NWVoK91CQyQA:10 a=IW_AZJzRm1jREHwl:21 a=YIrhPWDd1X8JAreY:21 a=D4tkpFASdJ76SbtM:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=lsIkP6lG2H4f0j7eDx0G:22 From: "Matt Boiteau mattboiteau@gmail.com" Received: from mail-io1-f45.google.com ([209.85.166.45] verified) by logan.com (CommuniGate Pro SMTP 6.2.12) with ESMTPS id 12699475 for flyrotary@lancaironline.net; Sun, 23 Jun 2019 22:55:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.166.45; envelope-from=mattboiteau@gmail.com Received: by mail-io1-f45.google.com with SMTP id w25so735329ioc.8 for ; Sun, 23 Jun 2019 19:55:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:date:message-id:subject:from:to:in-reply-to:references :user-agent; bh=rLQMRAumHxUAGcJANeXXFxnj1UsBwD/4YiKVhlPaqEA=; b=BoS7TTRR9TIpvYfqHULVFHwnBOWWpYWZD4e9dI38v65ljxXu01H7F4B9km/JJ0FeEo yCU6HeORjzewYlIAU87G8jYZNCS0CYJ2PXp8ftAtcwwcKbg/JUW1JI746z7JdizaSbg7 tWAJJmrW2Evt8owCfs+PTPe8KK+wnUXQSP6nsmfOk8Opr0gYEW2Xieiq0oI8KaeGNVMU 9OMtfgL/JDr7hkL77GKw3yi/Ll6reLow24WkpPcOWEybJkSWABHPGxom8c8QuCrxuven WoV5p/t9xpUyzoH6waiAYmIgb7ePfi4xvUjtLVqhTY015i8cnDEgD6HcdKmyYnlNA8Tp 14mQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to :in-reply-to:references:user-agent; bh=rLQMRAumHxUAGcJANeXXFxnj1UsBwD/4YiKVhlPaqEA=; b=H+wINRUAUxsZVh5IAVl/i2X+arry4jINAggI0jqZlQ1PbHl6nVDkrpJgR7Y6zwz4cj rmZu6OkYWnlrA90Sjq0aNYp3UXkl1khoDA79r02oOIaxMPn6wgw5+UDgi4KlbjyJMzsV FO6sBaRs34SDfHsifUGOr83e2OlA6udxNT0OPZNVnREOGzK1c34PDGe8Ac6bWSNeVbOb p6kS4VM/jD/fVqdZHl+b+Kj/TjDRWqxIjo3CPqiqKhp6kCDOjk1TbOJ9B/SubuvX+ZtU sKoCLmgx6OAv39IOqzlgXsRGRNCB9exeAGhSvIMDb8dL8PhNshBzLIJDEUoaW3xEQjVF /1Ow== X-Gm-Message-State: APjAAAXh4UYB4ChNBZ/CffGRmmAhC4+ObOui3YDapOoU3o07ADrcHnny eKorP/ckmCvh3W/4C/KAnkMOHSj6U7U= X-Google-Smtp-Source: APXvYqyg2JPfrV5EIXa0/Tx/M/76bc1cOOcRLV49PhaQt7uQ/PJVOzG/ABh+Gp5kKiYy5d0pMF90IQ== X-Received: by 2002:a5e:9401:: with SMTP id q1mr16989441ioj.276.1561344923686; Sun, 23 Jun 2019 19:55:23 -0700 (PDT) Return-Path: Received: from [192.168.0.122] (67-58-218-42.eastlink.ca. [67.58.218.42]) by smtp.gmail.com with ESMTPSA id b8sm13105704ioj.16.2019.06.23.19.55.22 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 23 Jun 2019 19:55:22 -0700 (PDT) Content-Type: multipart/alternative; boundary="----=_NextPart_17550729.155735315260" MIME-Version: 1.0 Date: Sun, 23 Jun 2019 22:55:23 -0400 Message-ID: <78cffff2-6630-4890-ba25-075c062e0cbd@getmailbird.com> Subject: Re: [FlyRotary] Re: Throttlebody To: "Sam Hoskins sam.hoskins@gmail.com" In-Reply-To: References: User-Agent: Mailbird/2.5.48.0 X-Mailbird-ID: 78cffff2-6630-4890-ba25-075c062e0cbd@getmailbird.com ------=_NextPart_17550729.155735315260 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable I'm actually not sure the correct size. I went with an 80mm thinking I'll b= e adding a turbo in the next few years. https://www.ebay.com/itm/RED-80MM-THROTTLE-BODY-PERFORMANCE-INTAKE-MANIFOLD= -BILLET-ALUMINUM-HIGH-FLOW/322910577197?ssPageName=3DSTRK%3AMEBIDX%3AIT&_tr= ksid=3Dp2057872.m2749.l2649 [https://www.ebay.com/itm/RED-80MM-THROTTLE-BOD= Y-PERFORMANCE-INTAKE-MANIFOLD-BILLET-ALUMINUM-HIGH-FLOW/322910577197?ssPage= Name=3DSTRK%3AMEBIDX%3AIT&_trksid=3Dp2057872.m2749.l2649] Haven't installed it yet. I've been talking with Neil Unger, who has an 80m= m and he said he'd go smaller to 65-70mm. I believe the stock RX8 throttle = body is 70mm. So I would guess that if you plan to go turbo, 80mm. If not, = stick to 70mm. - Matt Boiteau On 6/23/2019 4:43:29 PM, Sam Hoskins sam.hoskins@gmail.com wrote: Look up Jenvy throttle bodys in the UK with USA dealers.=C2=A0 On Sun, Jun 23, 2019, 8:53 PM Le Roux Breytenbach breytenbachleroux@gmail.c= om [mailto:breytenbachleroux@gmail.com] wrote: Hi Matt: You have mentioned in your email to the group about to replaced th= e slide throttle with a 3 inch throttlebody.Is the 75 mm more or less the c= orrect size for a p port 13 B ? I have p ported my housings with 44 mm diameter ports. The intake runners i= s 2 inch to the p ports .Has also build a intake plenum "cilinder shape int= ake plenum" Just want to now what size throttlebody will be appropriate. Regards Le Roux Breytenbach=C2=A0 I have a good one for you guys. I've been trying to get a slide throttle to= work. Lots of fixing to make it usable, mainly at lower RPM when the sucti= on is at it's highest. Lapped the outer plates flat, machined down the thic= kness of the inside slide, doubled up all the bolts to seal fuel from leaki= ng, and stiffened up the throttle cable every few inches. BUT now that I am= taxing around, this issue is coming up and I think it has to do with havin= g the injectors before the slide throttle. I think... When I taxi (under 1100rpm prop) and start to step on the brakes, the engin= e drops a few hundred RPM and struggles. If I pull power to idle to slow do= wn before tuning (600rpm prop), the engine will die. Unless I catch it in t= ime, and stab the throttle. The right brake is more pronounced then the lef= t.=C2=A0Even though the wideband is showing a quick lean condition, I've tr= ied riching up / leaning out the mixture at those lower rpm's to no results= . Once I get past 1200rpm prop and the engine is starting to breath, no iss= ues at higher powers. So we tried an experiment while idling and shook the plane left/right, it r= eproduces the engine dieing. I did see a quick puff of black out the tailpi= pe. That make me think at low idle, with the slide opening moves right to l= eft, the fuel is pooling at the bottom of the opening. The shaking is causi= ng raw fuel to make it's way in pass the opening. Drilled a few small holes= at the bottom of the slide to hopefully suck in any raw fuel that tries to= pool. It's helped a tiny bit, but if I shake the intake, the engine still = isn't happy at idle. I don't have a video of the engine running (will get it tomorrow), but here= 's a video of the intake setup. https://youtu.be/tuwBkDuKh9Q [https://youtu.be/tuwBkDuKh9Q] I'm tempted to remove the slide throttle and put in a=C2=A0standard=C2=A03"= throttle body on my intake box (ie, before injectors). Just want to get yo= ur guy's thoughts if I'm on the right track. And if anybody is running a sl= ide throttle.? - Matt Boiteau Sent from my iPhone ------=_NextPart_17550729.155735315260 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
=0A =0A = =0A = =0A =0A = =0A I'm actually not = sure the correct size. I went with an 80mm thinking I'll be adding a turbo = in the next few years.
https= ://www.ebay.com/itm/RED-80MM-THROTTLE-BODY-PERFORMANCE-INTAKE-MANIFOLD-BILL= ET-ALUMINUM-HIGH-FLOW/322910577197?ssPageName=3DSTRK%3AMEBIDX%3AIT&_trk= sid=3Dp2057872.m2749.l2649

Haven't installed it yet. I've been t= alking with Neil Unger, who has an 80mm and he said he'd go smaller to 65-7= 0mm. I believe the stock RX8 throttle body is 70mm. So I would guess that i= f you plan to go turbo, 80mm. If not, stick to 70mm.

- Matt Boiteau
=0A = =0A
=0A=

On 6= /23/2019 4:43:29 PM, Sam Hoskins sam.hoskins@gmail.com <flyrotary@lancai= ronline.net> wrote:

Look up Jenvy throttle bodys in the UK with USA deal= ers. 

On Sun, Jun 23, 2019, 8:53 PM Le Roux Breytenbach breytenbachleroux@gmail.com <flyrotary@lancaironline.net>= wrote:
Hi Mat= t: You have mentioned in your email to the group about to replaced the slid= e throttle with a 3 inch throttlebody.Is the 75 mm more or less the correct= size for a p port 13 B ?
I have p ported my housings with 44 mm = diameter ports. The intake runners is 2 inch to the p ports .Has also build= a intake plenum "cilinder shape intake plenum"
Just want to now = what size throttlebody will be appropriate.

Regard= s Le Roux Breytenbach 

I have a good one for you guys. I've been trying to get a slide = throttle to work. Lots of fixing to make it usable, mainly at lower RPM whe= n the suction is at it's highest. Lapped the outer plates flat, machined do= wn the thickness of the inside slide, doubled up all the bolts to seal fuel= from leaking, and stiffened up the throttle cable every few inches. BUT no= w that I am taxing around, this issue is coming up and I think it has to do= with having the injectors before the slide throttle. I think...
When I taxi (under 11= 00rpm prop) and start to step on the brakes, the engine drops a few hundred= RPM and struggles. If I pull power to idle to slow down before tuning (600= rpm prop), the engine will die. Unless I catch it in time, and stab the thr= ottle. The right brake is more pronounced then the left. Even though the wideband is showing a quick lean condi= tion, I've tried riching up / leaning out the mixture at those lower rpm's = to no results. Once I get past 1200rpm prop and the engine is starting to b= reath, no issues at higher powers.

So we tried an experiment whil= e idling and shook the plane left/right, it reproduces the engine dieing. I= did see a quick puff of black out the tailpipe. That make me think at low = idle, with the slide opening moves right to left, the fuel is pooling at th= e bottom of the opening. The shaking is causing raw fuel to make it's way i= n pass the opening. Drilled a few small holes at the bottom of the slide to= hopefully suck in any raw fuel that tries to pool. It's helped a tiny bit,= but if I shake the intake, the engine still isn't happy at idle.

I = don't have a video of the engine running (will get it tomorrow), but here's= a video of the intake setup.
https://youtu.be/tuwBkDuKh9Q

I'm tempted to = remove the slide throttle and put in a standard 3" throttle body on m= y intake box (ie, before injectors). Just want to get your guy's thoughts i= f I'm on the right track. And if anybody is running a slide throttle.?

- Matt Boiteau

Sent fr= om my iPhone
=0A
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