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Date: Wed, 28 Aug 2013 07:54:38 -0400
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From: Roger Iverin <roger@iverin.com>
Subject: Re: [LML] Re: Engine configuration options!
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Thanks for your feedback Gary!

The reason I not going with two P mags is properly the old school 
thinking ?
And the case I actually breaked out from only slick mags!
To not consume to much time in thinking on it right now I traded and 
ended between.
Pretty east since it a highly changeable case and slick mags is cheap to 
but
in theese days after replaced by others technology.

Regards the fuel pump(s) I have not got into it yet, but I have noticed
possibilities to regular NAPA, EFII or Airflow.
I planned to chech out the possibility to make space for pump and relay
under the pedals in a room and accesible from a lid on the hull.
This to keep easy acces and no smell in cocpit if leakage.
However this is not as low as actually possible.

Regards your conecern about keep fuel as possible Iæm not sure about
keeping the fuel pump as close to tanks makes any matter if this was
the intention.

However I see it will be a study itself and will come back for advices
later for this. I hope it's OK.

The reason I have looked on the AirflowPerformance is the developer
worked at Precision, the price and the tuning course he provide.
Erlier I had plans for the Silverhawk. (Precision).

Yeah.. I actually are in dialog with B&C.

But I need to figure out whitch product to choose.

Again thanks!

-Roger-


On 2013-08-27 15:06, Gary Casey wrote:
> Roger,
> I think you are making reasonable choices. I'm pretty sure the IO360
> will run well on mogas at 8.5 compression, but I have no direct
> experience. I've heard good things about the P-mag and that's the one
> I would pick. What about using 2 E-mags?
> The concern I have is with the higher volatility of mogas. To protect
> against that I have several suggestion regarding the fuel delivery
> system. While it's probably not practical to put an electric pump
> inside the fuel tanks, I would put an electric pump as close as
> possible to each fuel tank. Most electric pumps contain internal check
> valves, so you can simply T the outlets together - whichever pump is
> on is the tank you are feeding from. However, I'm afraid I don't have
> a good suggestion as to the best pump to pick that will supply the
> required 12 psi or so. A typical automotive "Bosch" pump would require
> a pressure regulator and a return to the tank - not terrible, but I
> would like to avoid the complication. No "auxilliary pump" required,
> and if you want you could make the lines from the pumps to the
> gascolator in one length of stainless and joined ahead of the firewall
> (I'm thinking about crashworthiness). If you keep the header tank,
> it's a little different story, but the same principle. Next I would
> make every attempt to keep the fuel cool on its way to the engine. The
> gascolator should be mounted as low as possible ahead of the firewall
> and in an insulated box. The standard mechanical fuel pump, which is
> now the "backup," should be boxed-in and positively cooled. The whole
> idea is to keep the fuel under pressure and cool. I know the
> AirflowPerformance system is available with a return line, but I would
> recommend using the Precision Airmotive Experimental unit. Maybe it's
> just because I've worked with those guys for many years and think
> highly of them. You can add the Airflowperformance return line to it
> as well.
> 
> As for the electrical system, give B&C a look. Not necessarily the
> lightest starter available, just the best.
> 
> Good luck building!
> Gary Casey
> 
> Gents,
> 
> After years on the ground I'm starting put my LNC2 together,
> this a/C was taken apart and robbet by HighSpeed Composites.
> I will need a lot of advices and one big issue is the engine
> configuration.
> 
> This is what I have bought so far:
> 
> ECI kit engine: (will build engine myself)
> 
> (IO) - 360 8.5:1 pistons. (constant speed)
> No harness, fuel injection, mags, starter/alt.
> 
> This is what I think sounds like an suited configuration would be :
> IO360 - 8.5:1 - setup for mogas. (I will check engines components, not
> 
> sure about tanks wil take it)
> Fuel injection: http://www.airflowperformance.com/html/site_html.html
> [1]
> Mags: One p-mag and one slick.
> Alternators: Lightweight type ?
> Starter: Lightweight type ?
> Superior sump or other not ECI.
> Locally powdercoated.... Need to learn about specfic coating is needed
> ?
> Please help me do the right choices.
> 
> Best regards
> Roger Iverin
> 
> 
> Links:
> ------
> [1] http://www.airflowperformance.com/html/site_html.html