what company Oettinger, MTM, Watteraurer, etc.

[zeke]

I live in Mexico and the only thing that is keeping me from putting my RS4 to 440 H.P. is the gasoline with 93 octanes. Do anybody knows what company, can I used to re-program my car, that will not affect the performance do to the low octane.
Another factor is that I used my car at an altitude of 7,500 feet above sea level (Mexico City) and here we don't have enough air, so the cars really run slow. On a normal aspirated engine, you loose like 30% of it's H.P.; not so with the turbo engines that create their on atmosphere pressure, but you do loose power also, because you are not putting all the boost because the lack of oxygen. So my question is: If I can put a program with lots of boost (equal to the boost at sea level with reprogram computer 440 H.P.) so I can compensate the lack of air with my 93 octane? or simple, can I used a program from one of this companies (Oettinger, MTM, etc)that will work with the 93 octanes?
If anybody knows what company will do it, please let me know. [img]images/graemlins/crazy.gif[/img]
Best Regards
Zeke

[johneroberts]

Zeke,
ever heard of Octane booster [img]images/graemlins/smirk.gif[/img] and BTW the MTM gets my vote [img]images/graemlins/grin.gif[/img]
Cheers
jr

[dog]

Zeke, have you got an Aquamist on your car?

[zeke]

Dog,
I don't know what you mean by Aquamist?

Johneroberts,

The octane booster only increase the octane by 2-3 points at the most. Everytime I fill my tank 60 lts, I do put one of those suckers in, but I don't think I get more than 2 points of octane; that makes it 95 in my case, still low for the stock RS4.

Best Regards
Zeke

[johneroberts]

Stick 2 bottles in [img]images/graemlins/grin.gif[/img] [img]images/graemlins/audiS4black.gif[/img] [img]images/graemlins/FIREdevil.gif[/img]
[img]images/graemlins/beerchug.gif[/img]
Jr

[Andiroo]

Hi Zeke, dog means water injection made by Aquamist (ERL) [img]images/graemlins/wink.gif[/img]

BTW dog, how you keeping?

Andiroo

[dog]

Getting there,Andiroo, not a lot new, just a new job, temporary move to Canberra, wife is expecting but the dog is fine.
Now that the temperature is below 30 C I got my power back.
I am looking for the Aquamist that injects water into the air intake. I am sure that someone on the RS4.org site has had it fitted, I thought it was cubalibre. I do not have his contact details. It was not you Zeke, (obvioulsly)

[Ozz]

Try Unichip and work with dyno but ... it's hard to say, 93 is a real problem because you can destroy your engine.

My results - polish 98 [img]images/graemlins/confused.gif[/img] something like 95 in Germany [img]images/graemlins/frown.gif[/img] http://www.forum.streetracing.pl/viewto ... c&start=45

[Jani]

Hi Zeke,

(I think I posted this once already), US scale of octane is different than in Europe. US 98oct is about same as Euro 98-100.

[zeke]

So, let me see if I understand this right, 93 octanes in the US is about 95 European [img]images/graemlins/1syellow1.gif[/img]

[Jani]

Sorry,

misspelled that. US 93 oct is same as EU 98-100. It is all about RON and MON octane scales. EU states RON octane, which is higher. US pump gas is rated by (MON+RON)/2, meaning an average of those two.

[zeke]

Finally I went with GIAC, a very nice chip for RS4, believe it or not they do make one for the RS4. You can see it at giacusa.com were there is a increase of 70 h.p. in the S4 as well as in the RS4. :clap

Since reliability is priority #1 with GIAC, here are the reasons I went with them:

1. GIAC has the most experience of any US tuner reprogramming Bosch Motronic. GIAC reprograms Audi/VW/Porsche/BMW/Mercedes/Fiat/Citroen destined for both US and German markets.

2. GIAC only writes ECU software and does not lose R&D time on developing exhausts, suspension, turbo kits, air filters, etc.

3. GIAC takes a base program from a new ECU (starting in their computer lab, using five dedicated networked computers) and completely disassembles out important functions using extremely complex engineering software. This is the same software used for the development of these ECUs by the manufacturer. When needed, GIAC emulates in real time with a professional engineering emulator, which allows 6 bit triggering and the ability to capture virtually any event while they run an ECU on a workbench.

4. GIAC then takes that source code and loads it into GIAC proprietary software "SHW version 8.02", where they can correctly modify any settings in the ECU. This makes GIAC different because they do not use commercial chip modifying software which can radically limit the tuning freedom needed to make a factory quality program. With a factory quality product, you will get silky smooth performance with stable power. GIAC can rewrite the code in SHW to modify anything.

5. GIAC designs and engineers in house all of their own printed circuit boards for encryption using advanced CAD software. They also write all of their own programs for encryption. This allows GIAC to get product to market much faster for a large variety of cars.

6. The GIAC 01s and 05s programs for the 2.7 S4/A6 have been extremely reliable and make real dyno power that has been independently tested by numerous parties. On the track, 01s and 05s hold a STABLE 1-1.1 bar, which is less boost than what most tuners are using to make the same or less power than GIAC does.

7. GIAC has a network of EXTREMELY experienced dealers who constantly test and compare their software. Being independent companies that rely on GIAC products being the best, they provide educated and objective feedback which GIAC aggressively uses to provide new software to their customers. All of the GIAC install centers either have an in-house dyno or have immediate access to one, which gives them the freedom to honestly test the GIAC software. GIAC dyno results, coming from all over the world are definitely more credible than dyno data coming from an in house dyno or spreadsheet plots.

8. GIAC's close ties with Bosch Gmbh ensures that their chips are state of the art.

Cheers

[dog]

Zeke, would you mind sending me a dyno run of your RS4 before and after, preferably with the air fuel ratio as well?
Cheers
bako@matra.com.au