REFLECTOR: Automotive / aviation ignition harness

[Christopher Martin]

I've been running dual electronics from Klaus Savier at Light Speed Engineering for 2 years with auto plugs. 4 knots faster and runs cooler.

http://www.lightspeedengineering.com/

Chris Martin
Velocity XL RG 610 hours

Christopher Martin
christophercmartin at earthlink.net



----- Original Message ----- 
From: 
To: Velocity Aircraft Owners and Builders list
Sent: 10/22/2005 8:50:53 PM 
Subject: Re: REFLECTOR: Automotive / aviation ignition harness


I have been running auto plugs since 1991 and have had no problem using an electronic ignition system.  I have even in an emergency ran to a local gas station and bought plugs to run in a race.  I have ran $2.00 plug all this time and at annual time just replaced them. I'm sure I threw away perfectly good plugs but at that price who cares.  
I gaped them at .035 and this ran best.  With the 14mm plugs you must remember to torque them to 15lbs and the adaptor if you have 18mm plug holes to 25-30lbs, using gaskets on both.  
I have been waiting for Emag to come up with the six cylinder ignition system but it looks like it's not hapening any to soon.  I don't know what was shown at OSH this year by them but would like to know.  Jeff Rose system is still out there but the support seems weak.  I called on a simple problem and they could not answer and even sent me back to Jeff.  Couldn't reach him.  So looking for another source related to electronic systems.  I still have a TECH II system but it for a four cylinder.  I just may go back to them for the six cylinder as well.  I'm sure they are great deal better then they were ten years ago when I used the system.  I'm thinking both ignition and fuel injection.  
Yes go for the auto plugs with the electronic ignition.  Just use the best wire material out there.  Race car type, 7mm or better.  

-------------- Original message -------------- 

> I'm getting closer to engine start. I filled up the Franklin with oil 
> today, removed the plugs and cranked it on the starter. Good solid 80 
> PSI oil pressure, RPM gauge works, Autronic EFI system getting signals, 
> oil flow sensor sending pulses. The backup magneto even makes sparks. 
> 
> All good. 
> 
> Now, my Autronic drives three dual post coils, wasted spark 
> configuration. My problem is this: I want to use aviation plugs ... 
> unless anyone here has a very compelling reason for me to try auto 
> plugs. If I go aviation, I need to make a harness. I already have the 
> harness kits, but I need a boot that fits the automotive style post. 
> 
> The nice thing about auto plugs is that I can experiment with the heat 
> ratings. I'd have ! to install the 14mm to whatever adapter. 
> 
> The nice thing about aviation plugs ... well they fit the hole. I'll 
> then have to make hybrid auto/aviation wires. 
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