X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=O/h7h11W c=1 sm=1 tr=0 a=2f/BrsI30kxfi1RG7K8GXg==:117 a=x7bEGLp0ZPQA:10 a=xXDCcK6TKBsA:10 a=JBFolyDoGHsA:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=0qqORytXAAAA:8 a=_6GpL_ENAAAA:8 a=7g1VtSJxAAAA:8 a=sjeAifjv6cMT-L4CG1QA:9 a=ZAjiupCrjbE3VOb1:21 a=thMddBHgHIVnD9rw:21 a=QEXdDO2ut3YA:10 a=oHX9K9At4wcKknCfpP8A:9 a=7jaMO_fnGX_2SLZB:21 a=z4bfWWb-EM_msGb3:21 a=mbyFTHRpLk_7C882:21 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=Urk15JJjZg1Xo0ryW_k8:22 a=Nj1bhqyGrdl6Az3_ctNx:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "Todd Bartrim bartrim@gmail.com" Received: from mail-ed1-f44.google.com ([209.85.208.44] verified) by logan.com (CommuniGate Pro SMTP 6.2.7) with ESMTPS id 11651735 for flyrotary@lancaironline.net; Mon, 17 Sep 2018 02:55:04 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.208.44; envelope-from=bartrim@gmail.com Received: by mail-ed1-f44.google.com with SMTP id f38-v6so11933452edd.8 for ; Sun, 16 Sep 2018 23:55:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=p6iIpESpvFcKHS1pEF5niGPxRS1LXFjFUggj9r+8rAU=; b=L8BNNdOVQkdn9xg7JDS3qGhwLr7wnSDcxSCOFWkYtRtg7USl8hDBDXw1OW5CfXSUu3 Uskq1a4S13hrOtX8bYEmihuAN9w/ZnhtJj62lQI+YRNbISDt8nTwpnaBBFdv/pDkS0eU ZRjKEg0P7Iw1lyb2/8efjZOOWapQIiibF271eb2US0A7p/ICUSBntIZrJoaH7ffTouUU PCfdpQD2dXsBiP8C866RBfxpScS+ttQOLiiT70RAQjssPXNO7yyhc1UzNgpSICL9/J6c XbZ6cxnbFHIs123C81+1u6cIDY2iTVR9aPS2i84hJMl8vjNjpUqFRLZms2GaVIdfVvDL keeA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=p6iIpESpvFcKHS1pEF5niGPxRS1LXFjFUggj9r+8rAU=; b=hHteoGHfQoFr7smv5zP7SUma4dZeLXj0muEBfeYXIDlAhBJtuQkeUUipXIz5MAt461 +/Z9o0zOTn/JXuwxH2B6+XWymdyQjBc+PCke/wCrIUuKLrnWkmcMXJNHL35UaG0q997K MUxFuWZohzQnMlPsxtSMwkUzy8tsNLrNdz2lGys3detSMhwIfXiJrVQbDujDsyBwsEl/ qVMe58oA9eKEb5zfv13wkyIhBbtjo6QJ/2koQ0ndRWFb/oCzqqm+u0ugeAvbzO7uFgQv exZK06NtjVyMI83tAd8ckJmApTmgWMWAm0lmzLecgRr8qgJmkt9oZ6CQU7qCnY04rtZF wHOw== X-Gm-Message-State: APzg51D+qgj8nHBLxkBxl3AbdFyHijyrHUE3a4N7w6Kn6+U9ViO4JA+k RY8sc4dLBdF+u9XT+N6LJshMKisXlDmR75MOprhw X-Google-Smtp-Source: ANB0VdZeexY8ngaZ5tNCS2AbuIBgjuP/TWFOz9vEEWYWnrj7v0/9hC/O5QAJAmb7gsIsY8NFcKNK3r3YY5pO+TC7pjI= X-Received: by 2002:a50:8046:: with SMTP id 64-v6mr19167184eda.227.1537167286940; Sun, 16 Sep 2018 23:54:46 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a50:a5fd:0:0:0:0:0 with HTTP; Sun, 16 Sep 2018 23:54:46 -0700 (PDT) In-Reply-To: References: Date: Sun, 16 Sep 2018 23:54:46 -0700 Message-ID: Subject: Re: [FlyRotary] Re: ignition system To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="00000000000019389a05760ba6f3" --00000000000019389a05760ba6f3 Content-Type: text/plain; charset="UTF-8" Hi Neil; I know it's tempting to cut a corner and use a carb to get flying faster/cheaper, but I'd really try to stay with EFI. Many advantages. I know you get screwed on shipping from across the pond which can make it hard to swallow. Here's a really half-baked, out of the box idea, that you could look into that would save you a lot of money, take up all your remaining time, but give you a ton of satisfaction. Arduino micro-controllers. I'm just starting to get into them while I'm building my own data-logger for my first generation EM2 and am absolutely amazed at some of the ideas people have used them for. It's difficult to stay focused on my current objective and not stray down the garden path by getting distracted by all the things that can be done with them. Almost anything you can think of, someone has done with an Arduino. They are an open-source hardware platform so there are many cheap clones available, with accessory shields for an almost unlimited number of gadgets. There are open-source libraries of code available for almost any conceivable project and I know in my browsing that I have seen some for engine ignition/injection. You can even pair up several (or more) micro-controllers for redundancy. There are great you-tube tutorials to get you started and I recommend you start right at the beginning. I know just enough to jump right in, but there were enough things to trip me up that I finally went to the beginning and started learning from scratch to fill in the gaps in my knowledge and now this project is beginning to come together. In most cases you don't need to wright your own code from scratch as you can find libraries with other users code that you can modify to suit your own needs. It's not as crazy as it might sound and id I didn't already have EC2 powering my plane, then I would probably attempt to make my own. Todd C-FSTB 13Bturbo 9.5 hours last week Todd Bartrim On Sun, Sep 16, 2018 at 6:26 PM, Charlie England ceengland7@gmail.com < flyrotary@lancaironline.net> wrote: > On 9/16/2018 7:33 PM, Charlie England ceengland7@gmail.com wrote: > >> On 9/16/2018 4:35 PM, Neil Unger 12348ung@gmail.com wrote: >> >>> Gents, >>> >>> The cost of an ECU is around the $3000 plus possibly >>> $4000 with a few fittings, which is substantial. To simplify things a >>> standard carby with a basic ignition systems would take a lot of money from >>> the project. What alternatives are there for a simple cheap ignition >>> system to replace an ECU? >>> >>> Neil Unger. >>> >> Are you willing to change the trigger wheel? You could look at the Mega >> Jolt (ignition only). It requires a 36-1 wheel, like Ford uses here in the >> USA (might be the same down under). >> >> If you're interested in alternatives in full injection/ignition >> controllers, the Micro Squirt & Mega Squirt systems can both be set up for >> a rotary. Micro Squirt will have batch fired injectors (like almost all >> aftermarket systems for aviation engines). Mega Squirt can be set up just >> about any way you can dream up. >> >> The Micro Squirt controller with harness is about $400 US. The Mega >> Squirt controller is about $600 US. >> >> The car guys love them. Here's a link to an RX-7 forum page on the Mega >> Squirt: >> https://www.rx7club.com/megasquirt-forum-153/ >> >> Charlie >> > Oops; forgot. Len Hanover has published a method using just a couple of > trigger detectors and (IIRC) Chrysler ignition modules. Same can be done > with GM HEI modules. Downside is fixed timing. > > > Charlie > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline. > net:81/lists/flyrotary/List.html > --00000000000019389a05760ba6f3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Neil;
=C2=A0 I know it's tempting to cut a corn= er and use a carb to get flying faster/cheaper, but I'd really try to s= tay with EFI. Many advantages. I know you get screwed on shipping from acro= ss the pond which can make it hard to swallow.=C2=A0
Here's a= really half-baked, out of the box idea, that you could look into that woul= d save you a lot of money, take up all your remaining time, but give you a = ton of satisfaction. Arduino micro-controllers. I'm just starting to ge= t into them while I'm building my own data-logger for my first generati= on EM2 and am absolutely amazed at some of the ideas people have used them = for. It's difficult to stay focused on my current objective and not str= ay down the garden path by getting distracted by all the things that can be= done with them. Almost anything you can think of, someone has done with an= Arduino.=C2=A0
They are an open-source hardware platform so ther= e are many cheap clones available, with accessory shields for an almost unl= imited number of gadgets. There are open-source libraries of code available= for almost any conceivable project and I know in my browsing that I have s= een some for engine ignition/injection.
You can even pair up seve= ral (or more) micro-controllers for redundancy. There are great you-tube tu= torials to get you started and I recommend you start right at the beginning= . I know just enough to jump right in, but there were enough things to trip= me up that I finally went to the beginning and started learning from scrat= ch to fill in the gaps in my knowledge and now this project is beginning to= come together.
=C2=A0 In most cases you don't need to wright= your own code from scratch as you can find libraries with other users code= that you can modify to suit your own needs. It's not as crazy as it mi= ght sound and id I didn't already have EC2 powering my plane, then I wo= uld probably attempt to make my own.

Todd
C-FSTB
13Bturbo=C2=A0 9.5 hours last week

<= /div>

Todd Bartrim=

On Sun, Sep 16, 2018 at 6:26 PM, Charlie Eng= land ceengland7@gmail.com <flyrotary@lancaironline.net> wrote:
On 9/16/2018 7:33 PM, Charlie England ceengland7@gmail.com<= /a> wrote:
On 9/16/2018 4:35 PM, Neil Unger 12348ung@gmail.com wrote:
Gents,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0 The cost of an ECU is around the $3000 plus pos= sibly $4000 with a few fittings, which is substantial.=C2=A0 To simplify th= ings a standard carby with a basic ignition systems would take a lot of mon= ey from the project.=C2=A0 What alternatives are there for a simple cheap i= gnition system to replace an ECU?

Neil Unger.
Are you willing to change the trigger wheel? You could look at the Mega Jol= t (ignition only). It requires a 36-1 wheel, like Ford uses here in the USA= (might be the same down under).

If you're interested in alternatives in full injection/ignition control= lers, the Micro Squirt & Mega Squirt systems can both be set up for a r= otary. Micro Squirt will have batch fired injectors (like almost all afterm= arket systems for aviation engines). Mega Squirt can be set up just about a= ny way you can dream up.

The Micro Squirt controller with harness is about $400 US. The Mega Squirt = controller is about $600 US.

The car guys love them. Here's a link to an RX-7 forum page on the Mega= Squirt:
https://www.rx7club.com/megasquirt-forum-153/<= br>
Charlie
 Oops; forgot. Len Hanover has published a method using just a couple of tri= gger detectors and (IIRC) Chrysler ignition modules. Same can be done with = GM HEI modules. Downside is fixed timing.


Charlie

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