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Dyno results. CIS-E vs. programmable engine management.
One question for you. Why so much advance? Wouldn't
36 be sufficient? Just curious.... Doesn't the
factory 2.0 motroinic stuff run 32 (or is it 26 I
don't remember) degrees timing total? Just curious.
At zero vacuum I run 32 degrees total on my 9:1 turbo
motor.
Anyone have any ideas. What do you run for total
timing? I was looking at my friends 1.8t through
VAG-Com and they seem to run a max of about 30 degrees
under vaccum.
Tony
--- Bradley Peet <btpeet@effervescent.com> wrote:
> Check out http://s16v.com/vw/88scir.html for some
> more info. Injectors are
> 40 lb/hr high impedance, Tomco brand I think.
> Should be good for 275 HP or
> so. Most people ramp up the timing pretty fast to
> full advance by 2500 RPM.
> I'm running 36 degrees advance from 3500 on up. The
> position of my crank
> trigger is preventing me from getting any more
> advance. Basically the ECU
> can only "delay" from the baseline of 36 deg BTDC
> when it receives the
> trigger pulse.
>
> Here's a screen shot of my main tuning map. Hope it
> makes sense to you. ;)
>
> http://s16v.com/pix/2003-08-07/P8070063m.jpg
>
> A little blurry but I think you can make it out.
> Fuel metering is done by
> TPS vs RPM times MAP vs RPM. Some systems only do
> MAP x RPM, so that's one
> thing about the MIC3 that's kinda cool. I was
> surprised given the low fuel
> number at 3500 (TPS column 4) that there wasn't a
> corresponding torque dip.
> Pretty common for cammed 16Vs to be weak between 3K
> and 4K RPM.
>
> This chart shows AFR. Not totally flat but rather
> than stay and fine tune
> it further I wanted to get out of there since they
> charge by the hour!
>
> http://s16v.com/pix/2003-08-09/P8090011a.jpg
>
> Bradley
>
> > -----Original Message-----
> > From: Ryan H [mailto:rhock99@epix.net]
> > Sent: Saturday, August 09, 2003 1:59 PM
> > To: Bradley Peet
> > Cc: scirocco-l@scirocco.org
> > Subject: Re: Dyno results. CIS-E vs. programmable
> engine management.
> >
> >
> > Impressive results! I'm going to stand-alone EM
> soon (future
> > turbo), so I'm interested: how was your AFR tuned?
> how about
> > your timing curve? fuel curve? I'd love to hear
> actual
> > numbers, they'd help me with baselining my car.
> Your injector
> > size would be useful too (for interpreting your
> fuel curve). Oh
> > yeah, and how about other mods to the car?
> > We're all interested! Fill us in!!!
> >
> ---
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