Subject: Mega Squirt
From: Rotary Engine
Date: 9/15/2005, 8:23 PM
To: AA-me


Grassroots Motorsports Magazine had an article about open source Mega Squirt
in the Oct 2005 issue Page 89.
www.grassrootsmotorsports.com

It is far more highly developed than I thought.
It is low cost and has some real nice features like data logging.
It is not for everybody. You should at least have some electronic
tech expierence. PL


Ahhhh ... I see someone else here *actually looked at* the MegaSquirt
links I posted over the last year.  Good.

I think this is a GREAT fuel injection system.  Open source is the way
to go (not unlike our rotary engine work here - the sharing of ideas).

HOWEVER ...

As I stated before, I wouldn't necessarily *FLY* with the board yet -
I'd have to get *REAL* comfortable with it first.  I'd want a version
that has two boards for redundancy, at a minimum.

ESD damage would be a big concern for me - one static spark = dead
electronics.  Dead electronics = no fuel injection = unplanned landing.
ESD needs to be carefully planned for and protected against - in any
aircraft electronics.  ESPECIALLY powerplant controls.

Tracy has a redundant, proven EFI system for a *very* reasonable price.
I'll probably use his system - certainly when starting out.

That being said ... MegaSquirt is really cool!  Go check it out!

-Vince Orton

No I have looked at it Vince on and off for the past three years.
In fact I uploaded the schematic a couple of years ago.
Just to prove it here it is again. The file date is 05/05/03 :)
It is cheap enough you could put two in there and a relay
like Tracy does.

Paul Lamar


Megasquirt is a good product the 8bit MS I version is more then enoguh
to run the 13B WITH CAS in a few different methods.. I'll be running a
13B shortly with this system controlling not only fuel and ign. but also
water injection, IAC valve,boost control solenoid. Using the MSnS-E
firmware this is all possible.. Thier is also now a rotary specific
daughterboard that holds two VR sensors as well as room for may other
analouge functions. If people feel more comfortable with the 16 bit MS
II then you'll be requred to wait until the MSnS-E is coded to the 16bit
setup..


Ian
BAS

I like the idea of the open source code. One can re program it to suit
one's own needs. That is of course one can program :)

Paul Lamar


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