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MegaSquirt family of engine controllers

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ainut(at)knology.net
Guest

Posted: Sat Oct 15, 2011 5:05 pm Post subject: MegaSquirt family of engine controllers

Have any of you knowledgeable guys evaluated the MS systems?  They sound 

wonderful to me, as a programmer, but I have so little knowledge of 

electronics and circuitry I'd like to get an expert's take on them.  it 

would be ideal if y'all could comment on one of the systems that control 

spark, squirt, and everything.  



Thanks,

David Merchant

(no, I'm really not trying to be facetious.  I intend on using this in 

my Mustang II, with Ford engine.  I'm still trying to learn how to apply 

Bob's book to my application.)



-- 

If you're an American, just say NO to the Obamanation, to socialism, and get rid of Soros.



..democracy and a republic can function only in a firm partnership with morality and religion. -- John Adams.  Indeed.  Same should be said for ANY type of gubmnt

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klehman(at)albedo.net
Guest

Posted: Sun Oct 16, 2011 4:15 pm Post subject: MegaSquirt family of engine controllers

David

I use an MS2 for backup fuel injection feeding a second set of 

injectors. At the time, ignition was not an option but I would use it 

also for backup ignition if building now. The system tests fine on every 

flight. I would not be comfortable running it as a single primary 

controller unless there were two of them set up for redundant either/or 

operation with no common failure modes. Then again I also run Z-14 to 

give it an independent power source so I do tend to be conservative. 

There are lots of ways for such a one off system to fail due to assembly 

and installation errors. The manual and circuit board quality is very 

good though. It can be a fair bit of effort learning how to set it up 

for your type of injectors and ignition system but I suspect lots of 

help is still available providing you don't mention it's for an 

aircraft.  Wideband O2 (air fuel ratio) meters in the $200. range now 

greatly simplify tuning these systems but make sure it is a true 

wideband meter. If you are not planning two systems, I'd suggest you 

also consider a pre-wired and assembled SDS EFI system. Tracy Cook also 

offers some controllers which are partially redundant.



I also use the Megaview display for real time display of the MS sensors 

and outputs. It has proven useful for quick and easy trouble shooting 

and provides a manifold pressure display.



Backups have given me some unanticipated benefits. My primary system is 

the subaru oem system and any concerns about fuel or ignition can be 

confirmed or resolved just be switching systems.



Ken



On 15/10/2011 9:06 PM, David wrote:

 	  Quote: 	
		   



 Have any of you knowledgeable guys evaluated the MS systems? They sound

 wonderful to me, as a programmer, but I have so little knowledge of

 electronics and circuitry I'd like to get an expert's take on them. it

 would be ideal if y'all could comment on one of the systems that control

 spark, squirt, and everything. 



 Thanks,

 David Merchant

 (no, I'm really not trying to be facetious. I intend on using this in my

 Mustang II, with Ford engine. I'm still trying to learn how to apply

 Bob's book to my application.)

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

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