REVO and sport Cats : remap needed ?

[Taipan]

Hello everyone,

I read somewhere that some owners needed to do a "remap" of their car after installing sport cats.

I'm not sure what a "remap" means precisely but since I have REVO "GA version" on the Imola and plan to upgrade to Milltek sport cats, I was wondering if this is something to plan/worry about.
(edit : and how a Revo "remap" is eventually done)

Cheers,

Eric

[wazza]

Yes, you will need one for them to be working properly.
The 'map' is the series of tables within the ECU and how they link up.
To make the most of the new cats (downpipes as well I guess) it will need extra fuel mix etc. at higher revs for it to benefit. [img]images/graemlins/thumbs.gif[/img]

[RobK]

Yes, tell Revo you want Rob installing [img]images/graemlins/thumbs.gif[/img]

[kcsun]

Hi Eric
I have just had the full Miltek fitted and a stage 2 MTM chip to compensate for the extra fuelling
Why did I wait so long [img]images/graemlins/<beep>_you.gif[/img]
The difference is awesome as is the sound under load [img]images/graemlins/jawdrop.gif[/img]
kc [img]images/graemlins/s4anogaro.gif[/img]

[PhilT]

I think the program you are running can be changed to compensate by using the SPS3 (If we knew how to use the thing!!).

There are many different Revo code versions for the RS4. I think between us you would be pushed to find two exactly the same!! [img]images/graemlins/burnout.gif[/img]

[Riz_RS4]

Is the RS4 SPS3 device different from the others, i thought it was the same as all VAG versions. [img]images/graemlins/confused.gif[/img]

Riz [img]images/graemlins/s3addict.gif[/img]

[PhilT]

Is the RS4 SPS3 device different from the others, i thought it was the same as all VAG versions. [img]images/graemlins/confused.gif[/img]

The SPSes (spelling?) are not model specific. The only functionality that can't be used, is across vehicles, and is the "anti-theft" function.

[Riz_RS4]

So how comes you dont know how to use it then..... [img]images/graemlins/roflmao.gif[/img]

Does yours have the sticker on the back:-
[img]images/rsul/29109-sps3_options.jpg[/img]

Riz [img]images/graemlins/s3addict.gif[/img]

[PhilT]

Does yours have the sticker on the back:-
[img]images/rsul/29109-sps3_options.jpg[/img]

OK..... Tell me:
1. What does "Off" mean? Does that turn the chipping off?
A: No, it means the SPS can be plugged in and will not alter any settings. Useful when using in conjunction with VAG-COM.

2. If I set the chip to stock, can I still alter the other values?
3. What 3 (0-9) is? What effect does it have?
4. What 4 (0-9) is? What effect does it have?
5. What happens if I set 3-1 and 4-9? or 3-whatever and 4-whatever?
6. Should the timing be changed if me DJ is off-beat?
7. Are positions 6 and 7 the same as "Off"?
8. Can I buy the kit from Maplins?

[img]images/graemlins/confused.gif[/img] [img]images/graemlins/confused.gif[/img]

[Riz_RS4]

[img]images/graemlins/roflmao.gif[/img] oh dear.... i`ll try my best [img]images/graemlins/tung2.gif[/img]

OK..... Tell me:
1. What does "Off" mean? Does that turn the chipping off?
A: No, it means the SPS can be plugged in and will not alter any settings. Useful when using in conjunction with VAG-COM.
* Yep think your right on this.


2. If I set the chip to stock, can I still alter the other values?
* Once in stock mode your car should produce standard figures after the ECU has adapted, to change settings you need to use the below settings.


3. What 3 (0-9) is? What effect does it have?
* This is low boost settings, they are all relative to the turbo`s boost pressure, this is for everyday use in my opinion.


4. What 4 (0-9) is? What effect does it have?
* This is the hight boost settings making the full use of your engines capabilities without breatching safety margins...... good for trackdays or on special occasions. [img]images/graemlins/roflmao.gif[/img]


5. What happens if I set 3-1 and 4-9? or 3-whatever and 4-whatever? * Settings of boost can be set, best thing todo is to try and test.... having highboost may be too much for everyday use at it will cause the car to lunge violently, low boost provides smoother power output etc Ignition timings are important to get right.
KO4 car:

Low boost 0 - Valet mode
Low boost 1 - Stock boost
Low boost 5 - 1.2 bar
Low boost 9 - 1.4 bar
High boost 9 - 1.55 bar


6. Should the timing be changed if me DJ is off-beat?
[img]images/graemlins/roflmao.gif[/img]
Timing 5 95/97 RON i think
Timing 6 98 RON Optimax
Timing 7 98 RON Optimax + Millers
But remember higher settings may induce the anti-knock sensors.



7. Are positions 6 and 7 the same as "Off"?
* Positions 6/7 are unused i think.



8. Can I buy the kit from Maplins?
* Kit for what?

[img]images/graemlins/biggrin3.gif[/img]

Riz [img]images/graemlins/s3addict.gif[/img]

[wazza]

6. Should the timing be changed if me DJ is off-beat?

Change your CD instead [img]images/graemlins/boots.gif[/img]

[Taipan]

From what I gathered on SeatCupra.net's dedicated forum for REVO (moderated by Revo_Kev, Revo_Mitchell and Revo_Richard), Riz just did a pretty good explanation.

I'll only add, to answer specifically to your questions :

- reversing to Stock mode will nevertheless give you the benefit of the latest upgrade from Audi.
ie. if your car was shipped with Audi V.1 program for the motronic ECU, when Revo installs their software, they also install the latest version from Audi. Thus when going back to stock with the SPS device, you may actually be running Audi V.2 or whatever latest version.

- Low boost range (from 0-9):
When the revo software is installed, it's set at Low boost 9. This is the so-called "standard performance".
When set to 0, you get into Valet mode which is something like 0.5bar for the RS4, PLUS a max rev of 5,500 rpm.
(note: feels like my parents A6 V6 2.. I personnally call it "learning driver mode" (say for the missus [img]images/graemlins/wink.gif[/img])

- High boost range (from 0-9) :
Key point : it overrides any setting in Low boost range so if you first enter Low range 5 then High range 3, you end up with Low range 9 + High range 3.
Second point : High boost range is just incremental to Low boost 9.
Thus High boost 3 could be called Boost 9.3.

Just to give a theoretical example on a car with a stock 1.0bar, and modified with REVO with a peak 1.4bar as standard performance upgrade (ie. Low boost 9) :

Low boost 0 - Valet mode ( 0.5bar )
Low boost 1 - Stock boost (1.0 bar)
Low boost 5 - 1.20 bar
Low boost 6 = 1.25 bar
Low boost 7 = 1.30 bar
Low boost 8 = 1.35 bar
Low boost 9 - 1.40 bar

high boost 1 = 1.42 bar
high boost 3 = 1.46 bar
high boost 5 = 1.50 bar
high boost 7 = 1.54 bar
high boost 9 = 1.58 bar

- Timing : if you over-extend the reality (say put Timing 7 for high-end 98Ron, while actually running on good 95Ron which qualifies for Timing 5 at best), the ECU will detect it and set itself back to a lower mode.

That lower mode has two disadvantges :

+ Disadvantage #1 : a set-back mode is less performant than an exact mode. Thus you'd get more of the car by being precise than by putting all modes to MAX levels and expect the ECU to adjust automatically at lower optimum levels (I hope I'm clear enough [img]images/graemlins/smile.gif[/img])

+ Disadvantage #2 : the so-called "adaptation" feature of the Motronic.
As soon as the Motronic goes into safer mode (for example : the Octane level is not as good as initially declared), it re-positions itself to a lower quality level (same example : usual gas is 95Ron octane).
If say you immediatly empty the tank out of 95Ron and replace it with high-end 98Ron, it will not detect it and re-adjust asap : this "adaptation" process may take a few hundred miles and a few full tanks of 98Ron.

Note : this would be a standard functionnality of the Motronic. So whether you drive a stock RS4, an MTM or a Revo tuned one, every time you put cheaper gas in it, it behaves that way and you'll "suffer" the consequences for a longer time than the next refill with high-end gas.

Hope this helps,

Eric

[Riz_RS4]

Cheers Eric.... lets hope Phil understands it all [img]images/graemlins/roflmao.gif[/img]

Riz [img]images/graemlins/s3addict.gif[/img]

[PhilT]

Clever clogs [img]images/graemlins/notworthy.gif[/img]

[Taipan]

Clog means ?

Eric