[s-cars] Ideas to Increase mpg?

Sun Jun 14 14:59:44 PDT 2009

I would likely replace the entire ECU.  I should have specified.

Thanks,
Dave

-----Original Message-----
From: Jerry Scott [mailto:jerryscott at wispertel.net]
Sent: Sun 6/14/2009 3:57 PM
To: David Kase
Cc: s-car list
Subject: Re: [s-cars] Ideas to Increase mpg?

Dave
I'm not sure that you can put the original chip back, since the after market 
chip was probably put into a socket that was soldered in.  The original chip 
might fit the socket, but I'm almost sure that it was originally soldered 
directly to the circuit board.
Jerry
----- Original Message ----- 
From: "David Kase" <dkase at dorma-usa.com>
To: "Tom Green" <trgreen at comcast.net>; <s-car-list at audifans.com>
Sent: Saturday, June 13, 2009 9:13 PM
Subject: Re: [s-cars] Ideas to Increase mpg?

> Hah!  Indeed "respectfully" is my slow transition back into the 
> irresistible S-list...
>
> Indeed, keep your foot out of it.  That makes the biggest contribution I 
> have seen in my B5.
>
> I will investigate the fuel mileage thieves you have mentioned.  O2 
> sensors I am sure are gone, the ignition is fresh but I will check for 
> leaks in the intake. This is a new path for me and I believe worthwhile. 
> I don't think I will give up on the C4 just yet.  The kids and wife like 
> it so I might as well embrace it.
>
> AFA the chips - I was just thinking of replacing the whole thing with a 
> stock ECU.  Seems to messy and chancy to try an chip swap again.
>
> I appreciate your reply and candor.
>
> Dave
>
>
>
>
> -----Original Message-----
> From: s-car-list-bounces at audifans.com on behalf of Tom Green
> Sent: Sat 6/13/2009 9:10 AM
> To: s-car-list at audifans.com
> Subject: Re: [s-cars] Ideas to Increase mpg?
>
> Ok, what did you do with the real Dave Kase?  He couldn't even spell
> Respectfully.  : )
>
> I don't think you see much here on mpg because it's difficult to
> compare, so usually meaningless.    You have this S6 with little
> invested in it, so I can see it is tempting to think you
> can essentially get a free vehicle by changing cars.  But, I think the
> reality is different if you move to an unknown.  The fuel savings is
> so dependent on the price.  If you are making
> a purely economic decision, just ride the bus.
>
> I think you can get to 25 mpg average for your commute since you can
> generally avoid stop and go driving.  I would start with the basic
> tune of the engine before I would spend
> money on the ECU.  You can probably find some stock chips for little
> dough, but are they socketed? Are the TAP chips socketed in the ECU?
> Who is going to do this swap?  How
> much?  It's going to take a lot of commute to pay for the swap so can
> you expect enough gain in mpg?
>
> I would look elsewhere for the culprit that is stealing my mileage.
> If it is your right foot, at least you are getting something for your
> money.  Faulty temperature sensors, O2 sensors,
> dirty injectors, dirty MAF and intake, leaking vacuum hoses, etc. rob
> the mileage with nothing in return, and these are areas you can attend
> to without paying labor costs.  There is also the added benefit in
> performance and longevity for the well tuned engine.  I admit that
> payback for a few parts can be lengthy at 5 mpg, but you have
> immediate benefits in the performance too.
>
> Tom
>
>
>
>> -----Original Message-----
>> Date: Fri, 12 Jun 2009 21:32:23 -0400
>> From: "David Kase" <dkase at dorma-usa.com>
>> Subject: [s-cars] Ideas to Increase mpg?
>> To: <s-car-list at audifans.com>
>> Message-ID:
>> <058B1C4576896745AB96826AB59CFC380879A9 at rmdc2.usa.dgna.net>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> I did a 7 month search in the archives and did not see a thread
>> related to fuel mileage.
>>
>> I am keeping my B5 S4 as a secondary car and am currently doing some
>> upgrades to it.  My recently purchased S6 is doing dd duty.  I have
>> a 60 mile round trip each day and at 20 mpg, I could stand better
>> fuel mileage.  I do 55 of the 60 miles on the open highway.
>>
>> I was thinking of selling the C4 and buying a TDI (saving ~$100/
>> month) but I just don't think I will enjoying driving it everyday
>> (Probably a 99-02 Jetta).  I also am considering a 1.8T A4.  But, I
>> figure if I can get the mileage better in the S6 then I will just
>> keep it.  I'd love to get over 25 mpg but I don't know if it is even
>> possible.
>>
>> Step 1 - go from CRAP (TAP) ECU to stock.  Then what?
>>
>> No matter what I do I know I will be rolling on the power from time
>> to time.  It seems like you can never get that mileage back over a
>> tankful.
>>
>> Respectfully,
>> Kase
>
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