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  #1  
Old 10-26-2017, 07:01 PM
rv6ejguy's Avatar
rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
Posts: 4,626
Default SDS CPI2

We've received a lot of emails and PMs here on the new CPI2 so I thought I'd start a fresh thread on that to provide updates.

After all the talk here on alternator failures, over voltage events and LiFePO4 batteries, we spent over a month investigating the best way to ensure power is always available to keep the CPI supplied with power to fire the plugs. We feel we have a good solution now and have been testing that for a couple of weeks, tweaking as we learn more on the bench.

With that mostly sorted, we began preliminary PCB layout about 10 days ago, laying out the rough placement of key components and connectors. Naturally, there are many intertwined aspects which affect each other so all designs are likely to be altered before the prototype stage.

The plan is to be able to control up to 6 coils so the unit can run 12 cylinder engines if desired via the usual waste spark strategy.

We've tried to eliminate all external switches to make for a cleaner, faster installation.

We've done some preliminary studies on the instrument face layout keypad/ display and how to integrate this with the chassis and optional twin PCBs.

So it's coming along but interrupted somewhat as we take care of our regular EM-5/ CPI sales and tech support. We're lining up some new partners overseas to distribute and support the product in other places with high demand and hope to get some OEM deals in place too.

Unfortunately, the product will not be ready for 2017 release as was initially hoped. The keypad vendors usually take at least 30 days to supply product after the design is sent to them. We're not going to rush the product out. It needs to be fully tested to our satisfaction before release.

If all goes well, we hope to finalize face footprint by mid- November.

Thanks to all those who contributed ideas that we could consider and implement into the design. I hope those who are waiting will be satisfied with the design and new features. Please understand that we can't release too many details on all new features due to the competitive nature of this market.

Thanks for your support and interest in the CPI2. I'll update this space as more significant information becomes available.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 422.7 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #2  
Old 10-26-2017, 07:26 PM
Chkaharyer99 Chkaharyer99 is offline
 
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Location: Pilot Hill, CA
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Have you established a firm price and if so are you prepared to share it?
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RV-8
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  #3  
Old 10-26-2017, 07:48 PM
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rv6ejguy rv6ejguy is offline
 
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Too soon to say until the design is more fleshed out. We're a long ways from a prototype and even getting quotes on expensive things like keypads.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 422.7 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #4  
Old 10-26-2017, 07:51 PM
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logansc logansc is offline
 
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Ross: I'm a happy customer of your six cylinder CPI system. Are you going for the Allison and Merlin market here?


Lee...
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Ridgeland, SC (3J1)
F1 Rocket #160 flying
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  #5  
Old 10-26-2017, 08:06 PM
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rv6ejguy rv6ejguy is offline
 
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Location: Calgary, Canada
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Glad you're happy with the present CPI. I suppose the new model could be used on the big V12s. I hadn't considered that. We have some customers converting Jag and BMW V12s for replica fighters who expressed some interest and there is a clean sheet aero V12 being developed down under plus the LS based V12 project.

Not a big market but we'll be ready for growth, potentially being able to run 7 and 9 cylinder radials as well with a dual unit in the future when we have time to write software.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 422.7 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #6  
Old 10-26-2017, 09:25 PM
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logansc logansc is offline
 
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Great stuff Ross; terrific to see the innovation and market savvy going on with you guys.
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Ridgeland, SC (3J1)
F1 Rocket #160 flying
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  #7  
Old 10-30-2017, 03:58 PM
rv6ejguy's Avatar
rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
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We've reduced the size of the OV protection and battery switching circuit. Continuing to lay out more of the components.

Have ordered some of the hardware- fittings, displays etc. to be able to start on the prototype board without delays down the line.

Looking for feedback on the keypad colors and LCD back lighting colors. On the LCD we have yellow, blue and white back lights available.

Things are starting to come together a little faster now as items fall into place.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 422.7 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #8  
Old 10-30-2017, 05:12 PM
Gt-401 Gt-401 is offline
 
Join Date: Oct 2012
Location: Wray CO
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Default Eifis

My panel is very space limited. I would like it best if it would integrate into the EFIS system.
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  #9  
Old 10-30-2017, 07:53 PM
rv6ejguy's Avatar
rv6ejguy rv6ejguy is offline
 
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Won't happen for a while and only with the cooperation of the EFIS manufacturers.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 422.7 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #10  
Old 10-30-2017, 10:06 PM
Canadian_JOY Canadian_JOY is offline
 
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Location: Ontario, Canada
Posts: 1,689
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Ross - w.r.t. LCD display backlight colours, take a look at human eye response to colours as we transition from day to night vision.

First colour to go is red, then we lose everything in and around the red wavelength.

Of the choices available, blue is the colour we see best at night, thus would be the colour requiring the deepest dimming capability.

For this reason white backlighting might be the best compromise between ability to see the display and ability to dim it so it's not sticking out like a sore thumb in the cockpit at night.
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