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  #11  
Old 07-03-2014, 10:03 PM
erich weaver's Avatar
erich weaver erich weaver is offline
 
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Location: santa barbara, CA
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Pmag manual indicates the cooling air should be directed at the neck of the Pmag rather than the back of the unit
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  #12  
Old 07-04-2014, 01:43 PM
UH1CW2 UH1CW2 is offline
 
Join Date: Jun 2014
Location: Lenox, Michigan
Posts: 178
Default Cooling ofthe P-Mag

Pointing the cool air at the aluminum housing neck makes good sense. Cooling the aluminum body will transfer the cooler temps to the circuit board. Plus I am willing to bet the board is heat sink-ed to the aluminum P-mag housing?
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  #13  
Old 07-04-2014, 02:52 PM
UH1CW2 UH1CW2 is offline
 
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Location: Lenox, Michigan
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Default Spark Plug Question

I was going to purchase 8 Autolite 386 Plugs today but wanted to ask a question first. I use BR9ES with the Plasma 2 ignition system. I would like to get away from the thread adapters. Can I use the Autolite 386 plugs for both P-Mag and the Plasma 2? Is anyone using these plugs for both type ignition systems?
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  #14  
Old 07-04-2014, 05:42 PM
gasman gasman is offline
 
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Location: Sonoma County
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Quote:
Originally Posted by UH1CW2 View Post
I was going to purchase 8 Autolite 386 Plugs today but wanted to ask a question first. I use BR9ES with the Plasma 2 ignition system. I would like to get away from the thread adapters. Can I use the Autolite 386 plugs for both P-Mag and the Plasma 2? Is anyone using these plugs for both type ignition systems?
If you understand heat ranges and how they effect the motor, and the 386 ends up being the proper heat range, then there should be no problem. An improper gap can stress the coils also.

Do your homework and then inspect the product till you are comfortable with the results.
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  #15  
Old 07-04-2014, 05:55 PM
SHIPCHIEF SHIPCHIEF is offline
 
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Location: Seattle
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Default

I'm nobody, but I seem to recall something about LSE coils being sensitive to current overload damage, and the resistance of the spark plug is a factor.
Autolite 386 is a resistor plug, but I don't know what the value is or how it compares to the LSE preferred plug. As always, read the instructions, sometimes a second read reveals more info.
I'm using 386 plugs with the Pmag, aircraft plugs with the mag. So far, so good.
In fact, I just had 2 Champion aircraft plugs fail the resistor test, so I replaced all 4 with Tempest.
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  #16  
Old 07-07-2014, 08:54 AM
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smokyray smokyray is offline
 
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Location: TX32
Posts: 1,891
Default Testing, testing 1,2,3...

Quote:
Originally Posted by UH1CW2 View Post
I was going to purchase 8 Autolite 386 Plugs today but wanted to ask a question first. I use BR9ES with the Plasma 2 ignition system. I would like to get away from the thread adapters. Can I use the Autolite 386 plugs for both P-Mag and the Plasma 2? Is anyone using these plugs for both type ignition systems?
Phil,
The LSE system will work fine with the A386 if gapped properly as mentioned above. I tested a set on an 0-200 Vari-EZ with an LSE system for a friend with no issues noted or thread adapters needed.
For best info though, Email or call Klaus at LSE for a lengthy and spirited explanation...
klaus@lightspeedengineering.com

V/R
Smokey
Here is a Spark Plug cross reference chart FYI...
http://www.jsesc.com/mfg_docs/ste/sp...nterchange.pdf
Spark Plug Cross reference Chart

PS: I started flying my first electronic ignition after extensive research between the 2 available systems at that time, LSE and Jeff Rose. After speaking with both designers (Klaus and Jeff) I chose the Jeff Rose (now Electroair) system that still works after 4000+ hours in 3 different airplanes. My HR2 and my RVX also share this system, the last shared with a P-Mag. I found by experimentation and Jeff's recommendations for Spark Plugs over the years that the Autolite 386 works very well. Both the EI and P-Mag can utilize a wide range of available 14MM plugs. My favorite has always been the Autolite 386 with the Denso L-14U a close second. I am currently testing 4 Bosch M10ACO plugs on my Electroair system for 100 hours.

Last edited by smokyray : 07-07-2014 at 09:08 AM.
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  #17  
Old 07-07-2014, 09:53 AM
UH1CW2 UH1CW2 is offline
 
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Location: Lenox, Michigan
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Default Plug Usage

Smokyray,
I did contact Klaus and he had a fit when I said I wanted to use the Autolite 386. He claimed only Denso plugs for his units! However, I have been running the NGK's for over 10 years trying 5 different plugs over hundreds of hours in my 0290 and 0320 engines BR9ES, BR9EVX, BR8ES, BR8EV and BR8EVX) all worked great with no issues a nice tan color and fast starting in cold or hot weather as I was in Michigan flying year round. I understand reach, thermal transfer ranges and correct threads for application I just wanted to check that an Autolite 386 had been used and will work with Plasm 2 systems. I don't mind being a test pilot but its nice to learn from someone else's work. Lightspeed coils put out more than enough energy to run a resister plug and shouldn't have any issues jumping a .028 gap. Thanks for the replay and data.

Kind of excited as my P-Mag will be here today and I can not wait to start the installation. No more adapters. Once finished I can put the wings on the plane and finish fitting the new cowls (Long EZ Pusher)

Respectfully


Phil Camarda
www.ruger1022receiver.com
www.longezpilot.com
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  #18  
Old 07-07-2014, 10:37 AM
flyingriki's Avatar
flyingriki flyingriki is offline
 
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Location: California
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Do you still think you need a blast tube? It's not on the same side as the downdraft setups?
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  #19  
Old 07-07-2014, 02:17 PM
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Barry Barry is offline
 
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I have had a Jeff Rose Electroair system on my RV6A working with a standard Slick Magneto for the last 14 years and 1050 hours.
About a year ago having had a problem with a Champion plug I decided to try using an auto plug with my Electronic ignition. In the Jeff Rose documents he recommends in the case of using auto plugs either the Autolite 386 or the Denso L-14U plug.
Here in Old Europe it was difficult to obtain the Autolite plug so I went with the Denso L-14U one. What I found was there was considerable electric radio noise with my recently installed Trig 8.3 Khz radio. I checked into the specs. for the plug and found the Denso L-14U is a plug without an internal resistor.
I ordered the Autolite 386 plug from the USA as it has an internal resistor and found that this type of plug reduced considerably the radio noise picked up from the Electronic ignition.
I looked at the Bosch plug that Smoky is trying and that plug also does not have an internal resistance. I am no expert on this but thought I would pass on my recent experience. I believe there are two versions of the Autolite 386 plug one with the screw on terminal and one with a solid terminal. If anyone has the part number for the solid terminal one I would appreciate if if they could post the information.

Barry RV6A F-PRVM
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  #20  
Old 07-12-2014, 01:06 PM
UH1CW2 UH1CW2 is offline
 
Join Date: Jun 2014
Location: Lenox, Michigan
Posts: 178
Default Installed P-Mag

Installed P-Mag the other day, put the jumper in but decided after running the ignition to pull the jumper wire out. I did install the 1 inch sceet blast tube as instructed by the P-Mag installation guide. Notice that for some reason the Plasma ignition ran a bit smoother than the P-Mag at RPMs below 1500. It was hard to tell above 1500. I have not flown the aircraft at this time. Still need to fit the upper and lower cowlings with some cutting and fiberglass work, It will be at least 3 weeks in this god awful Mississippi heat before its flyable if I work on it.

However, I am just considering waiting until September before I start working on this thing again. the epoxy tends to gel up fast and the pot life time is very short. In addition, the heat is around 100 degrees all the time so your sweeting constantly and it is just a very uncomfortable scenario working with fiberglass and epoxy in this humidity and heat. If you use a Dremel tool and grind the fiberglass the dust sticks to your skin like flower. Its because of all the perspiration tying to stay cool. Ill see how motivated I get this summer.

Phil Camarda
www.longezpilot.com
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