megasquirt users

[rfkellner at snet.net (Rick Kellner)]

Ben (and Ron), thanks for the reply and of course it is followed by more
questions.  

Did you end up using the 'relay board' or was VW's fuel pump circuit
sufficient?

Do you think the injectors, at 28 lbs, are contributing to your idle
problem?

What are you using for a throttle positioning sending unit or is one not
required?

Thanks, Rick.




-----Original Message-----
From: Ben Harder [mailto:vwtype53@yahoo.com] 
Sent: Monday, August 23, 2004 1:09 PM
To: Rick Kellner; scirocco-l@scirocco.org
Subject: RE: megasquirt users


--- Rick Kellner <rfkellner@snet.net> wrote:

> Ben, I have been researching the MS option too and would like to hear
> more regarding your experiences.  I don't want to jump into the MS
> forums on line and deluge them with questions especially when I don't
> have the kit.  I did read the Mega Manual while I was on vacation and
> while it seems like a great system however, the learning curve and the
> initial start up can be lengthy.  

Yes, really the largest investment to the whole setup is time.  Period.
I spent a few weekends just checking out all the wiring connections and
making
sure that fuel was properly routed and flowing.

Lots of setup time initially = less agony later while attempting
startup/run.


> Some of my observations from reading the manual are:
> VW fuel pumps, relay, lines to the engine, etc are acceptable.
> VW temp sensors are also acceptable.
> The stock ignition (from CIS-E), knock sensor, etc are also
acceptable.
> RPM signal is easy to get too.

All yes...

> The stock VW fast idle circuit is acceptable.

Like Ron said... idle is different with MS.  I am still fine-tuning my
idle...


> The fuel rail on the 16V seems to be one of the largest expenses; no
one
> seems to have an adaptation from another VW product that works.
> Injectors fall next in line after the rail.

Yes, I would have purchased the Ross rail, or Bahn Brenner one if I did
it all over again...
And injectors...I would start out with a set of used Digifant injectors
or
standard Bosch injectors (Saab, Volvo... all available at a junk yard..)
It's a cheap way to get up and running.  Just make sure that the
injectors
are functioning properly of course!
Then, once you know the actual flow rate of injector you need, then make
the purchase for some good ones... (just the way I've been looking at
it)


> Now for some questions;
> Are you running a wide band O2?
> What did you do for a fuel rail; I have heard that a 1.8t lines up
> however it requires extensions?
> What did you use for injectors?

I tried some Bosch injectors from a Saab 900 Turbo first (24lb I think)
Now using some from a Volvo 740 Turbo (28lb)

> Do you wish you stayed with Motronic? 

Nope.  never used motronic... from CIS-E to MS.

I went to MS all because I wanted the challenge and fun of tuning my
car myself... my rocco is my fun car anyhow, so I just made it more of
a learning experience.  ;)


> How many miles do you have on the system?

Let's see... to Waterfest and back (10 hours each way)
and another 1000+ miles of "spirited" driving.
I'm taking the rocco to a track event in two weeks as well...  :)

> 
> Thanks, Rick
> 
> 
> -----Original Message-----
> From: scirocco-l-bounces@scirocco.org
> [mailto:scirocco-l-bounces@scirocco.org] On Behalf Of Ben Harder
> Sent: Friday, August 20, 2004 6:28 PM
> To: Anthony Pelletier; scirocco-l@scirocco.org
> Subject: [SPAM] Re: megasquirt users
> 
> Hey Anthony,
> 
>  I do in fact have MS up and running on my mk1...
> with a 2.0 16v in fact.  ;)
> (and with +compression, cams, etc...)
> 
> The car runs great!  Off idle that is.  I just can't
> get the engine to idle below 1200.  Largely due to my
> cams, but because MS can't handle the fluctuating
> vacuum signal I suppose.  Anyhow, besides that issue
> to resolve it is quite nice.  Sooooooooooooooooooo
> many hours of prep, install, and tuning so far...
> 
> This install is definitely not a "bolt-in" setup.
> And cost... at first the idea of an *inexpensive*
> stand alone setup sounded great, but once you add in
> the fuel rail, injectors, lines/fittings, wiring,
> fpr, and sensors it adds up.  Just a word of caution
> is all...
> 
> I have yet to get to a dyno and tune the car...
> can't wait to really do some tuning.
> 
> Later,
> 
> Ben
> 
> 
> 
> --- Anthony Pelletier <vwnuts@yahoo.com> wrote:
> 
> > Hello everyone,
> > 
> > I am in the process of gathering parts necessary to
> > put a 2.0 16v in my MKI.  I was searching through info
> > on vortex and was going to find a motronic wiring
> > harness.  (I think I have most of what I need burried
> > in my basement) And was reading a post on megasquirt
> > on the 16v forum.  It appears to be pretty reasonable
> > providing you can get the kit together yourself.  I
> > know theres a few people on the list that have it
> > running.  Is anyone running the EDIS spark set up? 
> > Please email me about you experiences.  How does the
> > car run?  I am just 'thinking' about it for now.  I
> > have experience with tuning stand alone set ups.  
> > 
> > Thanks for any info,
> > Tony
> > 



		
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