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  #21  
Old 01-30-2020, 08:44 AM
Chino Tom's Avatar
Chino Tom Chino Tom is offline
 
Join Date: Jun 2005
Location: Chino, CA
Posts: 739
Default

I installed the Surefly on the right side of my O-360, leaving the left
impulse coupled mag on the left (tach pickup on the left mag). I run
the advance and have had no issues other than the momentary
cutout when checking the ignition at mag check (only happens occasionally,
but always when checking in flight). There is a flight school on the field
that has installed several on PA-28-140's and loves them. They also
commented on the occasional cutouts but have had no other issues (all
key mag switches). I removed another brand of electronic ignition on the right
side to install the Surefly. I have not been disappointed.
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Tom Prokop
Chino, CA
RV-8A,180/CS/Carb, AFS 4500 EFIS/EMS
RV-6, sold, 820 hrs of fun.
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  #22  
Old 01-30-2020, 01:14 PM
BobTurner BobTurner is online now
 
Join Date: Dec 2011
Location: Livermore, CA
Posts: 8,166
Default Slightly off topic...

The current, new IO-540 from Vans comes with one retard mag (not impulse), which pretty much requires the builder to spend another $1K on a ?Slick-Start? or similar box. Total (mag plus SlickStart) costs more than the electronic ignition under discussion. How long before Vans makes the switch?
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  #23  
Old 01-30-2020, 02:00 PM
DanH's Avatar
DanH DanH is offline
 
Join Date: Oct 2005
Location: 08A
Posts: 10,702
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Quote:
Originally Posted by BobTurner View Post
The current, new IO-540 from Vans comes with one retard mag (not impulse), which pretty much requires the builder to spend another $1K on a ?Slick-Start? or similar box. Total (mag plus SlickStart) costs more than the electronic ignition under discussion. How long before Vans makes the switch?
Probably as soon as Lycoming starts selling their version.
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Dan Horton
RV-8 SS
Barrett IO-390
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  #24  
Old 01-30-2020, 02:11 PM
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rv8bldr rv8bldr is offline
 
Join Date: Jan 2005
Location: Pakenham, Ontario, Canada
Posts: 628
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Quote:
Originally Posted by bkervaski View Post
I need to stop replying to posts on my mobile without reading glasses .. .. been trying to cross the 50 yard line without needing them
Ya, well, I got 3 days past the 40 yard line then I was done ....
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RV-8 C-GURV (Flying since Nov 2004) - Sold
Scratch building 4pl Bearhawk (C-GPFG reserved)
Flying a '79 Maule M5-235C
Ex-military : Donated anyway (it's worth it)

President EAA 245 Ottawa, ON
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  #25  
Old 01-30-2020, 09:54 PM
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Check6 Check6 is offline
 
Join Date: Apr 2009
Location: Georgetown, Texas
Posts: 171
Default Surefly

Love mine! I have it on an IO-360 200hp and one slick. My engine runs better, my hot starts are significantly better because of it. It works well with my G3X touch system. I put a battery back up on it which was no big deal so it will run if I lose electrical. It is straight forward to install, super simple and has a TBO of 2400 hours. You can do the math on overhauling slicks every 500 hours. The support is great at helping you install it. When I got mine almost 2 years ago they shipped it set up for my engine. Pretty awesome.
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Georgetown, Texas (KGTU) RV-8A
Falcon Flight Formation Team
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  #26  
Old 01-31-2020, 06:32 AM
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Sam Buchanan Sam Buchanan is offline
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Join Date: Dec 2004
Location: North Alabama
Posts: 4,537
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Quote:
Originally Posted by Check6 View Post
You can do the math on overhauling slicks every 500 hours.
It really is a no-brainer, isn't it.
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Sam Buchanan
RV-6
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  #27  
Old 02-13-2020, 07:30 AM
BlndRvtr BlndRvtr is offline
 
Join Date: Mar 2009
Location: NE Where
Posts: 412
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Quote:
Originally Posted by Check6 View Post
Love mine! ...I put a battery back up on it which was no big deal so it will run if I lose electrical.
What did you use for a back up battery system?

George
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  #28  
Old 02-13-2020, 08:28 AM
Sam Buchanan's Avatar
Sam Buchanan Sam Buchanan is offline
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Join Date: Dec 2004
Location: North Alabama
Posts: 4,537
Default Follow-up

A follow-up post-installation but before test flights. Installation went well with only one hiccup. The SureFly is initially timed with an external power source and the built-in LED. The timing gear is turned until the LED goes out which indicates the mag is set for TDC.

Since I am using fixed 25* timing the manifold pressure port on the mag isn't used. The installation doc says to cap the port if unused, which I did prior to hooking up external power. When I attempted initial internal timing of the mag, the LED blinked rapidly instead of being lit continuously. There is a note in the doc to call Surefly if this indication is seen.

The call to tech support was answered promptly and I was instructed to remove the cap on the pressure port. After doing that the mag then timed properly. It seems the doc is out-of-date in that SureFly now wants the port to remain open if set for fixed timing.

Initial start was quick and smooth and rpm drop on the SureFly is similar to the Slick on the right side. Our weather has been incredibly skunky and wet so test flights have not yet occurred.

In regard to a backup battery....the SureFly draws about 0.6 amp and I have it connected directly to the aircraft battery. If the alternator died the 20Ahr battery should power the mag for much longer than needed to complete the flight. And....there is the ol' Slick mag on the right side that is still firing. My mission profile is such that I'm comfortable without installing an additional battery for the SureFly.
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Last edited by Sam Buchanan : 02-13-2020 at 09:40 AM.
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  #29  
Old 02-13-2020, 09:09 AM
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Carl Froehlich Carl Froehlich is offline
 
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 3,587
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Sam,

Just curious as to why you are doing fixed timing. For me the main gain from electronic ignitions is timing advance in cruise to gain engine efficiency.

Carl
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  #30  
Old 02-13-2020, 09:30 AM
Sam Buchanan's Avatar
Sam Buchanan Sam Buchanan is offline
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Join Date: Dec 2004
Location: North Alabama
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Quote:
Originally Posted by Carl Froehlich View Post
Sam,

Just curious as to why you are doing fixed timing. For me the main gain from electronic ignitions is timing advance in cruise to gain engine efficiency.

Carl
Just for simplicity....I'll wait until there is more field history on the SureFly advance curve before deciding whether or not to use the advanced timing. I don't spend much time flying at altitudes where the advantages of advanced timing can be found. I also want the option for using auto gas and Surefly states not to use the advance mode with mogas. My rational for the SureFly wasn't for increased efficiency but rather to eliminate a mechanical ignition.
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