SureFly feedback before I pull the trigger

[RV8JD]

Originally Posted by Rvator97

Anyone installed the SureFly in aircraft with SkyView SV-EMS-220? Referring to tach connection to EMS with P-Lead wires....any isssues with this?
Thanks

Check out the Dynon Forum thread below. See Posts #6 & #10 (for the answer) and #9 (for Dynon's confirmation). Looks like you need to contact SureFly and get a "Tach Board".

https://forum.flydynon.com/threads/s...problem.12508/

Here is Dynon's reply from Post #9:

"Did a little research and this is the correct answer (referring Post #6). The PLeads won't work as a tach signal for SkyView. You will need to get the "Tach Board" from SureFly. We should have no problem using the 0 - 5 volt square wave from the board on our low voltage RPM inputs on Pins 34 & 35"

[Rvator97]

Thanks! Great info!

[WA85]

I installed a Surefly with my Dynon SKyview Classic. I connected the original Slick mag P-lead to the Surefly and did not change the original Dynon resister or wiring.

The tach signal from the Surefly to the Dynon Skyview works perfectly on either the Surefly or the P-mag.

I did buy the Surefly "tach box", which I did not use.

[kiljoy]

We installed a surefly mag on one of our club planes: a '78 172N with an o320 D2J engine. So far the results are good. The only hiccup is that the carb was too lean and we had to put a richer carb on her for getting enough cooling fuel during climb out.

[DanH]

Originally Posted by kiljoy

We installed a surefly mag on one of our club planes: a '78 172N with an o320 D2J engine. So far the results are good. The only hiccup is that the carb was too lean and we had to put a richer carb on her for getting enough cooling fuel during climb out.

Variable or fixed advance?

[WAustin]

Originally Posted by BH1166

Excellent...... so all know, seems Champion will reimburse you for SB driven replacement parts. Just have to go through a distributor for new parts and through same to send back old, with paperwork. Champion sends reimbursement $$$ to distributor, then from them to you. I verified these statements with Aircraft Spruce as well as a call over to Champion customer support in Liberty SC. Make no matter the warranty status of your mags. For the gear replacement in sb1-15a , you also get a new set of brushes in the box with the gear.

I got two gears from Spruce, there were no brushes supplied. When the gear sets were returned, Spruce took forever to respond and then only applied a credit to the account, not a refund of the money.

Now have replaced the LHS impulse mag with the Surefly SIM4P. It has made a big difference in starting my IO360M1B. Starts more like a car than ever before. I've only had a handful of flights, but am already far more confident with it than the mag it replaced. After having a long history of difficult starting, the Surefly seems to have fixed all my starting issues.

[RONSIM]

I have Bendix mags so I had to buy a "Slick" harness to mate with the Surefly. Install went well -- had the %&$* getting the cotter pin in during the gear change and it took me two or three tries to get the mag-to-engine timing just right. I did go ahead and hook up the MAP line to take advantage of the advance, though my flying, these days, will not really enjoy much of the benefit. I have my engine data coming into a Dynon EMS 120 and displaying on my AFS 5600T -- I did not make any change to my P-lead sensing for the tach (30K resistors off the P lead to Pin 32 and 33 of the EMS 120), and thus lost the tach display for the left side. I had read posts prior to the install and was expecting this -- I did contact Surefly and their suggestion was to reduce the resistor value -- I had already read where that did not work, for others. I do not want to buy the "tach board" from Surefly - $160, and more wiring complexity. For now, the smooth operation of the Surefly is enough verification that the mag, and the plugs, are working on that side.

Stay safe, out there!

Ron

[jliltd]

Originally Posted by RONSIM

I do not want to buy the "tach board" from Surefly - $160, and more wiring complexity. For now, the smooth operation of the Surefly is enough verification that the mag, and the plugs, are working on that side.

A logical and practical approach. 👍

[N941WR]

Originally Posted by Sam Buchanan

...
I want to emphasize I wasn't looking for improved performance, just wanted to replace via plug-n-play the mechanical mag and its associated inspection/overhaul requirements with an electronic ignition that won't need any maintenance for the remaining life of the engine...

You are assuming, of course, that a design issue doesn't crop up with this relatively new ignition.

Good luck, I hope it gives you a life time of service and by "life time", I'm not talking about your life.

[Sam Buchanan]

Originally Posted by N941WR

You are assuming, of course, that a design issue doesn't crop up with this relatively new ignition.

Good luck, I hope it gives you a life time of service and by "life time", I'm not talking about your life.

Wow, Bill, that was a really negative post.........

I guess the alternative is to assume a problem will crop up, but I don't think that line of thinking governs our equipment decisions....unless we are affiliated with a competing vendor.