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05-08-2020, 07:37 PM
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Join Date: Jan 2005
Location: Cincinnati, OH
Posts: 1,558
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[quote][Good luck, I hope it gives you a life time of service and by "life time", I'm not talking about your life./QUOTE]
YIKES!! Competing vendor?? Yep. Sounding political. Can?t we all just get along?
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SH
RV6/2001 built/sold 2005
RV8 Fastback/2008 built/sold 2015
RV4/bought 2016/sold/2017
RV8/2018 built/Sold(sadly)
RV4/bought 2019 Flying
Cincinnati, OH/KHAO
JAN2020
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05-13-2020, 01:25 PM
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Join Date: Sep 2007
Location: Fredericksburg, VA
Posts: 7
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Rpm output
We solved the RPM issue going from Mags with Hall effect sensor to electronic ignition. We install the UMA Tach drive unit but had it built with ONLY two magnets instead of the standard 4 magnets. UMA will do this, no problem, now I get one pulse per crankshaft revolution, just like I did with the Hall effect sensor on the magneto.. It is 5v square wave output. Were now running dual Surefly and with the tack drive rpm sender, we get rpm readout even when we do a mag drop run up test.. we hope this helps...
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Mike G
RV-8A, IO-390
Surefly ignition
Air Flow Performance induction
Flying since 2010
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05-18-2020, 04:27 PM
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Join Date: Sep 2013
Location: Rancho San Lorenzo
Posts: 885
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Since SureFly is set up for Slick caps and harness it would require adapting either the leads or the sparkplug caps to automotive style. Remember SureFly is towing the line for type certified aircraft. In the case of my Husky I kept the Slick harness and massive electrode plugs as changes were not allowed under the STC.
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RV-8
(a few more airplanes too)
Last edited by jliltd : 05-18-2020 at 05:08 PM.
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06-22-2020, 03:10 PM
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Join Date: Jan 2020
Location: California
Posts: 29
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Removed my Slick I/C left mag and installed a Surefly EIS in my 7A ,(0-375), this weekend . Fairly easy job, but took some time due to tight working space; (however, installing the gear cotter pin was no picnic!) After correcting a dumb error on my part, got the timing set correctly and the engine is now running great.... very quick on starting. I also installed a new harness and spark plugs. I have a three blade Catto prop and have not have any kick back issues, ( timing is set at TDC #1 as per instructions).
First flight test should be Wed.....
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Walt Hastings
RV -6A (N79WH) builder 1998/ Sold 2004
RV-7A (N57LW) purchased 2020
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06-22-2020, 03:26 PM
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Join Date: Feb 2005
Location: Bay Pines, FL (based @ KCLW)
Posts: 1,955
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Quote:
Originally Posted by Rvator97
Removed my Slick I/C left mag and installed a Surefly EIS in my 7A ,(0-375), this weekend . Fairly easy job, but took some time due to tight working space; (however, installing the gear cotter pin was no picnic!) After correcting a dumb error on my part, got the timing set correctly and the engine is now running great.... very quick on starting. I also installed a new harness and spark plugs. I have a three blade Catto prop and have not have any kick back issues, ( timing is set at TDC #1 as per instructions).
First flight test should be Wed.....
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I'll be watching your flight tests, as I was the one that returned my Surefly while swinging a catto 3-blade and having kickbacks. This was prior to others suggesting a timing retard to correct it. My kickbacks were numerous & is why I returned it. On a cross country last month, my starter failed & I will be replacing next week. I suspect my starter failure is related to my prior kickbacks.
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Danny "RoadRunner" Landry
Morphed RV7(formally 7A), N20DL, PnP Pilot
1190+ hours
2019 Donation Paid
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06-22-2020, 03:30 PM
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Join Date: Dec 2016
Location: New Braunfels
Posts: 299
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Quote:
Originally Posted by Rvator97
The Skyview does get tach info from the right Slick mag just fine. Not sure this is a problem that warrants $160 and an install of the tach board.
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FWIW.......Not flying yet, but do have SureFly on left and Slick mag on right of an IO-540. I chose to have my tach sensor run off Slick, not the SureFly. Was advised this was a good way to go because, in the event of a total electrical failure, you can still have RPM readings from slick mag even if Surefly is not powered up. I was told if I rely on SureFly for tach sensor, and power to it fails, I'd loose RPM readings.
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Randy Vanstory
Flying RV10 - N783V
1st Flight 08/20/2020
Donation Happily Made 2020
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06-22-2020, 04:08 PM
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Join Date: Jun 2006
Location: SoCal
Posts: 174
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Surefly tach
The reason for having a working tach, in my mind, is that it helps with the Mag check. When I do a mag check I am checking both sides and seeing if there is a large difference between both, although I have never had an issue I have seen the gap spread at runup and that told me it was time to do a retiming. With Surefly if you have no RPM and your Mag goes, than you have no tach reading and you need to fly it by "ear". You want that Tach connected to both the Mag and the Surefly for a mag check and mag or Surefly failure. There is a reason why Skyview has two connections- for two Mags or one EI and one MAG. Use them both is what I would plan for.
Last edited by ReidVaitor : 06-22-2020 at 04:10 PM.
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06-22-2020, 04:38 PM
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Join Date: Jun 2005
Location: Chino, CA
Posts: 738
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I also have one mag (left) and a Surefly. My Tach sensor for my Advanced EFIS
is on the magneto. Even if the mag fails, you will still get a tach reading
as long as the mag shaft is turning (if it isn't, you have bigger problems).
I don't lose tach readings during mag checks.
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Tom Prokop
Chino, CA
RV-8A,180/CS/Carb, AFS 4500 EFIS/EMS
RV-6, sold, 820 hrs of fun.
Last edited by Chino Tom : 06-22-2020 at 04:39 PM.
Reason: Sp.
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06-22-2020, 06:38 PM
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Join Date: Jan 2020
Location: California
Posts: 29
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As both of my mags were wired to Dynon EMS via P leads, sounds like I need to either get the Surefly tach board , OR install a magnetic pickup tach sender in the remaining slick mag. This tach sender would be connected to left side tach input on Dynon EMS, ( per Dynon install instructions). As Tom said, as long as mag is turning, tach info will be sent. This would solve the run up check issue as I would not lose rpm info when running on Surefly alone.
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Walt Hastings
RV -6A (N79WH) builder 1998/ Sold 2004
RV-7A (N57LW) purchased 2020
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06-22-2020, 07:31 PM
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Join Date: Apr 2015
Location: The Woodlands, TX
Posts: 37
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Quote:
Originally Posted by Rvator97
As both of my mags were wired to Dynon EMS via P leads, sounds like I need to either get the Surefly tach board , OR install a magnetic pickup tach sender in the remaining slick mag. This tach sender would be connected to left side tach input on Dynon EMS, ( per Dynon install instructions). As Tom said, as long as mag is turning, tach info will be sent. This would solve the run up check issue as I would not lose rpm info when running on Surefly alone.
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I installed a Surefly a month ago replacing the left impulse mag and yes I have no tach reading on my Skyview during mag checks when on the Surefly. I am ok with this as I can hear the engine rpm during runup and during normal operation the tach reading from my right mag is OK. No need in my opinion to spend time or money to fix this minor issue.
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RV-9A completed 12/2011
N579S
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