[s-cars] Alternatives to RS2 Injectors - related Q

[Mihnea Cotet]

Seems to me I had corrected the injector flow rating in the fuel/timing 
chip but I can't remember for sure actually....

I'll check that again soon, but then, the best bet is to log how many miles 
you do on a tank...

HTH,

Mihnea

At 17:05 23/02/2004 -0500, Mark Strangways wrote:
>You show better gas mileage because the ECU is using a shorter duty cycle
>with the larger injectors.
>Since you have not had your injector size value in the ecu changed (Mihnea
>enter here) your ecu is calculating the fuel economy based on what it thinks
>the injector size, and it's duty cycle. So it feels as if it is not nearly
>burning the same amount of fuel.
>
>What to do ?
>a) Talk to Mihnea about setting your injector size into the software,
>or
>b) Enjoy the illusion that your getting really good fuel economy.
>
>Fill the tank, reset the tripometer, and log how many miles you get to that
>tank. Then calculate the real fuel economy
>
>Mark S
>----- Original Message -----
>From: "otw185" <otw185 at yahoo.com>
>To: <s-car-list at audifans.com>
>Sent: Monday, February 23, 2004 11:16 AM
>Subject: [s-cars] Alternatives to RS2 Injectors - related Q
>
>
> > I forgot to mention I did indeed change to new timing
> > and boost chips created with this in mind when making
> > the injectors/cam change as well.  Still surprise to
> > see significant fuel economy improvement....
> >
> >
> >
> > Message: 9
> > Date: Mon, 23 Feb 2004 06:47:49 -0800 (PST)
> > From: otw185 <otw185 at yahoo.com>
> > Subject: [s-cars] Alternatives to RS2 Injectors -
> > related Q
> > To: s-car-list at audifans.com
> > Message-ID:
> > <20040223144749.74921.qmail at web41211.mail.yahoo.com>
> > Content-Type: text/plain; charset=us-ascii
> >
> > The talk of injectors has reminded me about an
> > observation of mine.
> >
> > About a month ago I switched to 37#/hr. injectors and
> > somehow my (92's) computer is telling me I'm now
> > getting avg. MPG of about 21.5.  In the past with
> > stock injectors and RS2 turbo, I was seeing more like
> > about 17 all-around MPG.  All other factors are more
> > or less constant except I also switched out the
> > exhaust cam to a 7A type at the same time.
> >
> > Any explanation for why I'm showing better fuel
> > economy given I should be burning more fuel with the
> > larger injectors -- or is it a calibration issue with
> > the Motronic ?  I haven't yet just calculated my
> > mileage by actual fuel volume used vs. miles which I
> > keep forgetting to do.
> >
> > Scott S.
> > Columbus, O
> >
> >
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