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  #1  
Old 10-06-2017, 08:03 PM
RhinoDrvr RhinoDrvr is offline
 
Join Date: Jun 2014
Location: Lemoore (Fresno), CA
Posts: 52
Default Dual P-MAG Reliability in 2017

Hello all,

So the RV-8 I just purchased has the LASAR ignition system, and unfortunately the slick mags it uses are just about to the point where they need to be overhauled. Instead of paying to overhaul the one off mags, I’m debating replacing the LASAR system. I’ve priced out 3 options.

2 Slick Mags - $2500
2 P-MAG’s - $3200
G3I Ignition - $4600

The airplane currently has an auxiliary battery, but I like an ignition that isn’t reliant on ships power, so those are my 3 options.

I like the idea of the P-MAG’s the best, but have been unable to on find any data on reliability of the new, v40 firmware, latest version of the hardware P-MAG’s. I also think the P-MAG would be the most straightforward install given the LASAR setup I would be removing already has a Manifold Pressure Line etc.

What are your thoughts?
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Lemoore, CA
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  #2  
Old 10-06-2017, 08:43 PM
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Carl Froehlich Carl Froehlich is offline
 
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 1,138
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RV-8A with 700 hours on a dual pMag install. Performace has been flawless.

Carl
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  #3  
Old 10-06-2017, 08:57 PM
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Ironflight Ironflight is offline
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Location: Dayton, NV
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Default

We went through this same thing here a couple of weeks ago. As usual, a long thread.... search for Pmag.
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RV-8 - N188PD - "Valkyrie"
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  #4  
Old 10-06-2017, 08:59 PM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 2,127
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I had two PMAGs in my RV7A and I was running v40 which ran flawlessly for the 150 hours that I had installed the PMAGs. The installation and timing of PMAG is super easy. I saw about a gallon of fuel saving (for the same speed) up high and about .8 of a gallon of saving when I had only one PMAG.

I definitely recommend it.
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  #5  
Old 10-06-2017, 09:00 PM
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RV8JD RV8JD is offline
 
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Posts: 503
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Just in case you keep the LASAR mags, Aero Sport Power in Kamloops, BC does the 500 hour inspections on them. Approximate price is $300.00 USD plus shipping.
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RV-8, 230 Tach Hours
(Pic)
- Out with the Old, In with the New (Pic)
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(Pic 1), (Pic 2), (Pic 3) - Sale Pending
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Last edited by RV8JD : 10-06-2017 at 09:03 PM.
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  #6  
Old 10-06-2017, 09:10 PM
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Jim Kiloh Jim Kiloh is online now
 
Join Date: Jun 2005
Location: Cypress TX
Posts: 104
Default Pmags

Been running dual p-mags since first flight in 2008, flawless performance, would definately do the same again.
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Cypress, TX
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O-360-Dual P mags-GRT EFIS-Tru-Trak AutoPilot
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  #7  
Old 10-06-2017, 09:49 PM
RhinoDrvr RhinoDrvr is offline
 
Join Date: Jun 2014
Location: Lemoore (Fresno), CA
Posts: 52
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Quote:
Originally Posted by Ironflight View Post
We went through this same thing here a couple of weeks ago. As usual, a long thread.... search for Pmag.
I did a search, but wasn't able to find a good quantity of data from 2017. Most posts are with issues that folks were having in 2012-2015. My main curiosity is if all the teething issues with the P-MAG's have been fixed and if the system is reliable enough to use without a backup system in place other than an auxiliary battery.
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RV-8 N88MJ (Built by Michael Robbins)
Lemoore, CA
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  #8  
Old 10-06-2017, 11:17 PM
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Toobuilder Toobuilder is offline
 
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Quote:
Originally Posted by RhinoDrvr View Post
Hello all,

...What are your thoughts?
You have a second battery already?

No contest: SDS CPI
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WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.

Michael Robinson
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  #9  
Old 10-06-2017, 11:27 PM
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N941WR N941WR is offline
 
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Location: SC
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Like any thing else, a few units will suffer infant mortality, but for the most part, they are bullet proof.

Just make sure to install them per the manual.

Depending on the engine you are running, you may have to tune them to match the manufacturer's recommended timing. This is fairly easy to do.

Check your email.
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RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
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  #10  
Old 10-06-2017, 11:42 PM
RhinoDrvr RhinoDrvr is offline
 
Join Date: Jun 2014
Location: Lemoore (Fresno), CA
Posts: 52
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Quote:
Originally Posted by Toobuilder View Post
You have a second battery already?

No contest: SDS CPI
This sounds really dumb, but....

The control panel is hideous and I don't want it on my panel. If it could be integrated into a panel that looked more like something that belonged in an airplane I would be more interested.

The airplane currently has a really neat, well laid out steam gauge IFR panel, and I don't want to ruin that with the incredible hulk of engine monitors.
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