megasquirt

[jdbubb at ix.netcom.com (Dan Bubb)]

Yeah, the hardware ( injectors, fuel rail, FPR, coolant temp sensor, air
temp sensor, O2 sensor, TPS) can be the same between digi 1 and MS, bearing
in mind that MS is fuel only.
The electronics that controls it all is different, but all the sensor inputs
can be the same. MS is calibrated for common GM temp sensors but can be
recalibrated to work with stock temp sensors.
So, really you're just changing the brain that takes the sensor inputs and
gives the appropriate outputs to the injectors and secondary stuff like idle
solenoids and fuel pumps.
The big difference???? With digi 1 you get a chip and hope it's right for
your engine. With MS you can tune it to your engine!
So, the next question is, do you understand all the tuning parameters
available in MS to tune your engine correctly?
Dan


----- Original Message -----
From: shawn f <falzsf@mts.net>
To: Dan Smith <sad_rocc@yahoo.com>
Cc: scirocco list <scirocco-l@scirocco.org>
Sent: Sunday, October 26, 2003 5:17 PM
Subject: Re: megasquirt


> you may need some stuff from a digi set up, like the fuel rail and
> injectors. You also need a TPS(throttle position sensor) throttle body. I
> beleive from a passat you can get this.......That is about all the addons
> you need then the megasquirt componets of course....
>
> Shawn F
> ----- Original Message -----
> From: "Dan Smith" <sad_rocc@yahoo.com>
> To: "Ron Pieper" <rapieper@yahoo.com>; <scirocco-l@scirocco.org>
> Sent: Saturday, October 25, 2003 11:20 AM
> Subject: Re: megasquirt
>
>
> > Ok, cool that's a start. So, since I'm not familiar with our wiring (I'm
> just getting the mechanical stuff down so far), what's left? What I'm
trying
> to figure out is if I go turbo, I'd like to go digi1 for the chipping and
> added boost ability. If I do megasquirt instead, do I not need to buy the
> digi1 stuff? Do I just need some of it? At least I know what part you're
> referring to Ron. I look forward to others' input.
> >
> > Dan
> >
> > Ron Pieper <rapieper@yahoo.com> wrote:
> >
> > Picture this: remove your CIS setup from the filter to the injectors
> (note: CIS is Continuous
> > Injection System - the injectors spray all the time). Get some Bosch
> electrically fired injectors
> > - like Digifant, Motronic, Ford, etc. setups use - and install them.
> Devise a fuel rail and
> > regulator to feed them fuel at the correct pressure. Now all you have to
> do is fire them - that's
> > what MS does. It takes a signal from the dizz, a vacuum signal, a
throttle
> position signal,
> > coolant temp, and O2 signal, and maybe a few more.
> >
> > The cool thing is that YOU can configure MS to squirt how much to
squirt,
> under what conditions,
> > etc. You download software (free) that graphs out how close you are to
> optimum, and tweak from
> > there.
> >
> > The controller box is the DIY. Buy components from the bills of
material,
> sit down and solder it
> > all together. Takes a bit of time and a bit of skill, but not tons.
> >
> > Wire it up and go!
> >
> > Now how do I know all that? I'm about 90% done with my build, and the
> install comes pretty
> > soon...
> >
> > Dan Bubb will expand on my 5th grade explanation, I hope...
> >
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