[s-cars] Intake Air Temp - TDS-1 data

[Tony Curran]

Hi Dave,

Yes it is. Very easy to install. As stock air intake is no longer in place,
more cool air flows over the turbo. I mounted a thermistor on oxygen sensor
and drove around before and after mod. I noted a 4 or 5 degree drop in air
temp after mod.

Also increased air input - faster accelaration but no increase in HP. I have
Stage 2 MRC chips. Have been advised that this is designed for 22-23 PSI. I
have seen 26PSI after I did mod. Unfortunately I did mod before installing
chips so don't know if this is the casue but suspect so - Mihnea has not
responded to my e-mails asking about this.

Stock air intake warms the air, snakes around the engine compartment and
genrally SLOWS air intake. Did you know that in the middle of the intake
hose there is a cross member reducing cross section area by a substantial
amount. The mod'd hose is 4" in diameter, 12" long and air is MUCH cooler.

See pics.

Tony
96 S6

-----Original Message-----
From: Dave Forgie [mailto:forgied at direct.ca]
Sent: July 31, 2005 1:44 AM
To: Tony Curran
Cc: s-cars
Subject: Re: [s-cars] Intake Air Temp - TDS-1 data


Tony:  The temperature data may not be correct (faulty IAT).  In any event,
I am
(finally) installing a Tom Mullane/Marc Swanson front-mounted intercooler
kit
tomorrow. So temps will be down.  Nevertheless, what you are describing is
Hap
McGuire's solution (of a few years ago) to "negative" boost.  It worked for
him
(and others).

Dave F.

Tony Curran wrote:

> Dave,
>
> You need the monster air intake replacement job. Air drawn from oil cooler
> intake is much cooler than from stock intake position. Also greater
pressure
> as no right angles kinks in the hose. Costs only $25 + couple hours
labour.
>
> Tony
> 96 S6
>
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com]On Behalf Of Dave Forgie
> Sent: July 29, 2005 10:47 AM
> To: s-cars
> Subject: [s-cars] Intake Air Temp - TDS-1 data
>
> A few wheks ago, after I installed my Kevin Day TDS-1 turbo data info
> system, I mentioned in my write-up that I saw 193 deg C intake air temp
> (IAT) on one WOT pull.  I know some of you may have (or did) question
> that number.  Last night, at our local Vancouver S-car club meeting,
> Sean Douglas quizzed my on that number and I said, I saw 193 but I had
> the TDS-1 intake air display in the instantaneous display mode, not the
> five second max mode.  I thought I saw 193.
>
> But did I?  Hmmm....
>
> So on the way home, I set the TDS-1 to the 5 second max IAT reading mode
> and watched it as I cruised over to the highway on ramp that I take.  It
> was a warm (80 deg F) night and I was getting in the high 70's to low
> 90's deg C intake air temps on the mile or so drive over to the
> highway.  After idling for 20 or 30 seconds at the light leading to the
> on-ramp (low 70's deg C readings), I nailed it pretty good going up the
> on-ramp to the highway.  I was watching traffic not the display (which
> is a good idea) and when I did look down at the in-dash display (in the
> "OK" status/radio display window), the reading was 204 deg. C.
>
> Yes, 204.
>
> So my previous flash of 193 deg C was probably real in the sense that it
> was the number displayed in the window.
>
> I will be installing my Tom Mullane/Marc Swanson FMIC on the weekend
> (finally).  It will be interesting to see how much lower the air temps
> will be and also whether my software will stop pulling the timing back
> during these hot WOT runs (which it has been doing - in a surgey sort of
> way).
>
> Dave F.
>
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