REFLECTOR: 6 Cyl. Lightspeed Ignition

[Douglas Holub]

Interesting. Klaus' FAQs says it doesn't matter much whether it's top or 
bottom, but maybe 'much' means that bottom is a little better. I assumed top 
was better because before ECI allowed 12 mm bosses on top and bottom, you 
could only get them on the top as an option.

Doug
----- Original Message ----- 
From: "Andy Millin" <amillin at sbcglobal.net>
To: "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>
Sent: Tuesday, July 21, 2009 7:38 AM
Subject: Re: REFLECTOR: 6 Cyl. Lightspeed Ignition


> Hey Doug,
>
> I'm setup for one magneto and the ElectroAir EI unit.  The manufacturer
> recommended to use the EI on the lower plugs.  It has a hotter and longer
> spark than the mag.  Bottom plugs tend to get gummed up a bit more than 
> the
> top ones.  They reason the EI has a better chance of burning through the
> junk.
>
> Andy
>
> -----Original Message-----
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
> Behalf Of Douglas Holub
> Sent: 07-20-2009 9:19
> To: Velocity Aircraft Owners and Builders list
> Subject: Re: REFLECTOR: 6 Cyl. Lightspeed Ignition
>
> I mounted both of my boxes on the cabin side of the firewall so no cooling
> is necessary. I regret using dual Lightspeeds. I wish I had put a magneto 
> on
>
> the bottom plugs for peace of mind and for a simpler installation. I don't
> notice any RPM drop when I switch off one of the ignitions, and Klaus says
> the engine runs great on just one box. The literature says you get an
> additional 5% hp by using two boxes, but I don't believe it. And with dual
> Lightspeeds you need an extra battery dedicated to ignition backup and 
> other
>
> additional wiring. It's a little complicated and a nuisance. I've got to
> admit that the engine starts and runs great, though. If I lean too much, 
> the
>
> engine just quits-- no running rough to give you any warning. (It's kind 
> of
> scary when that happens. I need to watch it.)
>
> Why don't I pull one of the boxes out and install a Slick magneto for the
> bottom plugs? I was so sure I never wanted to put a magneto on my engine, 
> I
> ordered it with 12 mm bosses (automotive spark plugs) on all 8 cylinders. 
> I
> guess I could get them machine out to 14 mm if I wanted to.....
>
> Doug Holub
> N2980W 2009 Standard FG w/ 63 hrs
> ----- Original Message ----- 
> From: <scott at tnstaafl.net>
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Sent: Monday, July 20, 2009 7:37 PM
> Subject: REFLECTOR: 6 Cyl. Lightspeed Ignition
>
>
>>I just purchased a Lightspeed for my IO520.   I had one on my IO360 and
>> loved it. It's the best performance improvement for the buck I have run
>> across.
>>
>> Easy starting, hot or cold
>> Silky smooth idle
>> Runs very clean
>> More HP
>> Better mileage
>> Improved detonation prevention
>> Lighter weight
>> Allowed me to run 75 LOP with the IO360
>>
>> So I was perusing the web site and noticed that Claus recommends cooling
>> for the 6 cylinder model?  I called and he said all I really needed was
>> some air movement.  He said a small 3/8 hose connected to the engine side
>> of the firewall plugged into the cooling port on the lightspeed would do
>> it.  The differential pressure being plenty strong enough to move enough
>> air to keep it cool.
>>
>> Anybody doing it this way?
>>
>> Scott
>>
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