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  #21  
Old 02-03-2018, 03:17 PM
rv6ejguy's Avatar
rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
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Quote:
Originally Posted by rmartingt View Post
Not to speak for Ross, but with any business decision it's not just "can we?", but "will it be profitable?"--and beyond that, "will it be more profitable to divert our limited resources into producing some of those than to focus on producing more of our main product?". If pump module production is maxed out on dual units, then making single-pump units would detract from sales of the (presumably more-profitable) complete injection systems.

Same goes for "why won't Van's make a matched-hole RV-3?" that pops up every now and then.
We certainly can do almost anything but often it cannot be justified time or money wise like you say. Our main focus is EFI but we have branched off into more CNC'd parts now that we have the machining capacity with our partners- 2 lathes and 3 mills. We can easily turn out many hundreds of parts per month now and have been doing just that as of late.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 418.1 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #22  
Old 02-03-2018, 03:21 PM
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rv6ejguy rv6ejguy is offline
 
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Location: Calgary, Canada
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Quote:
Originally Posted by svyolo View Post
Ross;
I am looking at Duplex fuel valves for the EFI on my high wing (Bearhawk) application. The designer recommends running the fuel valve in "Both", especially for TO and Landing. Andair doesn't make a 4 position duplex valve. SPRL makes one, but the feed is 3/8, and the return is 1/4". Is the 1/4" big enough for the return line on a IO540? I haven't found any other brand valves doing a bit of googling

Because of the significant amount of return fuel (>50% of the fuel feed flow), I think running in R or L is better for most of the flight. But with low fuel,manuevering close to the ground I think "Both" might be a good choice for my application, at least during TO and Landing.
Some of our high/shoulder wing clients are returning fuel to a low mounted header tank and dispensing with the Duplex valve. This would seem to be reasonable with -6 lines feeding everything.

A 1/4 return line is probably ok if not very long and full of bends and 90 degree fittings.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 418.1 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #23  
Old 02-05-2018, 10:21 PM
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rv6ejguy rv6ejguy is offline
 
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I just uploaded a video showing some of the main SDS EFI components which I hope will be informative for those considering EFI as we've had a number of requests on this topic: https://www.youtube.com/watch?v=xzNGHQBoTuU
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 418.1 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #24  
Old 02-06-2018, 04:24 PM
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majuro15 majuro15 is offline
 
Join Date: Feb 2013
Location: Charlotte, NC
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Awesome update and progress! Thanks for keeping us all informed as you move forward. I can't wait to have this system on my airplane.
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Tim Huneycutt, Capt, NCANG
RV-10 Fuselage under construction
N127TL Reserved
EAA #: 1106970
2017 VAF Dues Paid!
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  #25  
Old 02-06-2018, 06:12 PM
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rv6ejguy rv6ejguy is offline
 
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Thank you. My friend Ralph Inkster will be back from Australia soon. We plan to do a series of videos on his new RV which has an dual SDS EFI setup on it. We'll cover the installation, tuning, features and flight testing as it progresses. I hope this will help people understand more of the entire process.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 418.1 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #26  
Old 02-07-2018, 01:47 PM
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rv6ejguy rv6ejguy is offline
 
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Another milestone for us yesterday, we sold our 1900th ECU for aviation. Our first one was sold back in 1995. Looking forward to surpassing 2000 this year along with the introduction of the 6th generation computer.

Thanks to the folks who've emailed us with features to incorporate on the new design. We've got quite a shopping list now. We can't use every idea put forth but if the idea has widespread merit, we'll certainly do our best.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 418.1 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #27  
Old 02-09-2018, 11:27 PM
charosenz charosenz is offline
 
Join Date: Aug 2009
Location: Longview, Wash
Posts: 6
Default Thanks to SDS for years of support

For those who do not know about SDS I can tell that Ross and his crew provide excellent products and superior support.

I got a EM2 system from Ross about 11 years ago and ran it on a 2.8L Toyota. It was great.

I now have a EM4f running on a Honda R18. SDS is easy to use, and is very adaptable to a wide variety of settings. You can have it control switches are various RPM and much more.

I would highly recommend them. How often can you fine a company whose owner still personally answers all your you silly questions for more than 12 years!

Thanks Ross. I am glad to see that you continue support experimental aviation for years and years.

Charlie Rosenzweig
RV6a (95% done).
Longview Washington.

Last edited by charosenz : 02-09-2018 at 11:29 PM.
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  #28  
Old 02-10-2018, 05:20 AM
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DanH DanH is offline
 
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Quote:
Originally Posted by rv6ejguy View Post
Another milestone for us yesterday, we sold our 1900th ECU for aviation. Our first one was sold back in 1995. Looking forward to surpassing 2000 this year along with the introduction of the 6th generation computer.
That's saying something, in particular because they have been installed on such a wide variety of engines. It's an experience pool a mile wide and a mile deep.
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Barrett IO-390
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  #29  
Old 02-10-2018, 10:07 AM
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rv6ejguy rv6ejguy is offline
 
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Thanks Charlie and Dan. We appreciate the kudos.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 418.1 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #30  
Old 02-14-2018, 07:14 PM
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rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
Posts: 4,194
Default EM-6 Development

With the initial design phase of the CPI2 wrapping up at weeks end, we have some time to start focusing on the upcoming evolution of the the EM-X ECU series in the form of the EM-6. (6th generation).

We have 13 new features at this time we intend to incorporate or at least explore for the new ECU. Unfortunately we can't discuss too much of those given the competitive nature of this market now.

So, like with the CPI2, we're looking for your good ideas and feedback which will help make the EM-6 more user friendly and more capable for your mission.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 418.1 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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