s4 maximum power

[saf]

I guess custom can be used in many ways. When I use custom i pretty much mean that the engine and all its components are mapped in real time as the car is being driven.
The car can be tweaked in the same way when adding or taking away components. Real time mapping down again to tweak the difference.

Sending an ECU off in the pst to get tweaked without real time mapping,is not custom in the sense that its not tweaked for someones particular engine block with those mods in real time. Its tweaked for a type of engine with certain mods on and are a guestimate to say the least.

[MarkB]

I think we are singing from the same song sheet here and I couldn't agree more to your comments.

I will be custom, tweeking my ECU realtime on the road.

[s4woody]

well when i sent my ecu off the 1st time i told mr DNA what else i had fitted and when i got the ecu back it worked fine..the "tweaking" is purely done too allow the RS4 maf to work correctly with the original map he done..
now if anybody wants to put there car up against mine with there custem real time map against my postman pat map then i,d glad to see the difference real time..cos im confident that my postman pat map will not disappoint..

[saf]

Might be worth doing at some point. Id like to see the difference.

im not saying that your map was done by postman pat. I was just saying the best way to map is in real time as thigs can be monitored and tweaked to near perfection and the tuner will know that the car is running safe. EGT's can be checked in real time, timing can be checked as well as a wealth of other things. Its not only about performance. Its about reliability and drivability as well.

My cars standard apart from decat and gutted precats. No RS4 ic's or other mods like youve done.. I would still like to see what both cars are like on a straight.

I do believe sending the ecu to be mapped is not the best way to do it for reliability drivability and performance. You will not be able to fully get the best from the car and have the map how you want it to be. ITs going to be set a certain way and thats it. Im not syaing its no good, but just think a custom map would be bettr in my opinion.

I guess for the RS4 MAF you need to tweak the map to compensate for the air flow characteristics as it flows more air and is a bigger unit. Thats fine. But I was mainly talking about a generic versus a cistom map when it comes to performance and relaibility.

I do think what youce done with the rest of the car is very sensible and great in terms of maximising your air flow and making the car generally more reliable in terms of adding the uprated bits and bobs. Very wise indeed and money well spent.

[MarkB]

What do the EGT's show. Would it be if they get too hot you could be running lean, too rich or something?

Before anyone say's I know that EGT is Exhaust Gas Temp, I'm meaning when they go up or down is it likely to be due to mixture?

[saf]

The EGT shows a measurement of the temperature of the exhaust gas (Hence Exhaust Gas Temperature sensor) before it enters the turbine housing.

If the sensor stop working properly then the temperature in the exhaust cant be determined correctly. As temperature rises over 950 degrees C it will make the mixture richer to cool things down.

The temperature shows either working normal temperature or if its too high as far as im aware.

[stimp]

Mines been postman patted by DNA and I'm pretty confident it's as good as any other stage one remap. My engine is made by Audi to there tolerances of which I am quite confident that it is within an acceptable level identical to the next. My generic remap is also designed to run with my Audi engine and tolerate the larger deviations that I may throw at it due to different fuels, loading(towing), ambient temperature etc. In jest I was offered a full custom dyno remap using a realtime emulator but was told it was really not worth the expense until serious modifications were made.
I also don't want to reveal the price I paid but it was cheaper than all those quoted on here.
Lets not forget that the chaps that are now in these older companies were doing these remaps back in 1998 when the car first came out(AMD,APR,ABT,MTM etc). There is'nt any magic formula that is going to allow one company to get anymore out of a stage one engine than the other. If you think that company X can magically run more igntion advance(not that that neccessarily results in more power), achieve a higher level of boost without scarificng reliabilty etc then you have been done by the power of advertising.
All maps should have a safety tolerence, max boost, timing adv, AF ratio, if you tune to the point of pure performance on that day then you are going to suffer on a change of conditons.
I think company X is best because that is what I have bought seems a pretty useless statement.
I don't mean to knock any company and I would certainly expect the new companies to be equal to all the others, they've had nearly 9 years to copy, analyse and tweek all of the previous maps.
Personally I am glad that people are happy with the service they have recieved but proclaiming anyone as the ruler of the universe is purely only your own opinion. I'm happy with my DNA remap, is there better, could be but I have not had any others to compare with.

[DavidT]

Why do you not want to state what you've paid for DNA maps ?

[saf]

Your point is taken and noted.

I for one dont think company x , or z can magically run any more ignition timing that any other.

All ive tired to explain is that Id rather bring my car over to someone that will map my car to the best of its own ability.

No 2 engine blocks are the same. No two will run identical. Even if you had 2 new cars with 1000 miles on the clock each, they will both have different potentials. Its within this that a custom map is useful. I dont feel I need any advertising to know whether a cutom map is better or not. Ive had both treatments done. A generic map, and a custom map. I chose the custom map.

Why?

1) I was able to tell the mapper how I want the car reacting under diffeerent throttle loads.

2) Where I wanted the torque

3) I was able to have the added bonus of it being mapped with the map having the knowledge of the gutted precats.

And this goes for generic or custom, - I was able to have the mapper real time chek my fueling, my timing, and lookk at numerous values to see if everything was working as it should under the power that was running.

Now a generic map from any one that knows what they are doing is fine. As long as they have had experience with these cars for a while. I dont have a problem with that. A cusom map is the way i would go each time. Thats just my opinion mate.

I would say the best company out there is the one that looks to give the maximum performance , drivability whilst still thinking about reliability and being able to test the car and make sure its performing as it should is fine.

If someone wants to go for a generic remap then that is fine. IF they are happy with that, who am i to argule.

But i dont agree posting an ECU them mapping it without checking if your car is reliable enough to be bapped for more powe is a good thing.

That why when you got for a generic remap at QST for example, they will check the car thoroughly then map it, then rolling road again then check it , then let you go home.

If someone sends an ECU to a company, gets it back and doesnt know what they are doing , the ECU company is not going to ask questions. "did you check for boost leaks"? Did you check this or that. It just wont happen.

Unles you are someone with previous knowledge and has the kit (Like Woddy has) and can check for leaks etc, then i wouldnt reccomend this method.

The safety tolerence you mentioned stimp is only as good as the condition of your car is. And unless you know your car is functioning properly, with no leaks, no fault codes, no problems what so ever, I wouldnt be putting and sort of map from anyone. be it custom generic or postman patted.

I for one was all for the bigger tuners like MTM and AMD APR etc. And still dont have a problem with them, and I was very reluctant about getting a custom map done for various reasons, but when I looked into it with detail I realised what the best thing was for my car.

There so many advantages of having a car mapped in real time that for me it out weighs having a genric remap.

I would really like to see what a DNA map is like. Have any of you guys with a DNA map got any vag com logs you can post to show us how it performs and a list of mods you have. It would be interesting to compare and see.

Many thanks

Regards

[s4woody]

saf i posted 2 FATS logs on the deed is done thread i believe..which once a maf reading of 278.22 was noted it was thought that i had a boost leak..doug at mrc said the timing looked good but as im not into disecting FATS data i cant really comment on whats good or not..

[JonnyX]

Woody, mid range timing looked OK, upper RPM (i.e. 5500+) looked relatively poor. That may be due to
the increased weight of the car. Can you log boost as well? (separate log, not at the same time as 003).

You could also try bumping up your timing a bit with vag-com, see if it will let you run a bit more now you
have no cats.

[dr_wimpkins]

With a decat, you should see 350 - 360 hp and anout 540 nm torque.
,

Really? What is your FATs time?

I got no cats/precats, 2.5" all the way from manifold and remap. On the tuning run Doug recorded 1 fats time of 4.89.
He estimated 330bhp.

[Dr-Al]

Why do you not want to state what you've paid for DNA maps ?

Yeah - did you have to sign a non-disclosure agreement or something?

[stimp]

Nope no non disclosure agreement I just thought it would be wrong to advertise a price that basically came about as a good will gesture. Basically I bought a chip of a forum member that had changed his original map for a custom job. The company that did the custom map burned a copy of his original code onto a new chip which is what I got.
I bought some bits of DNA tuning and in conversation mentioned I was going to install the new chip myself(With full acces to a major optoelectronics manufacturing site). The chap that I dealt with was concerned that it was not the easiest thing to do even with the equipment I had at hand and offered to fit it for me using the proper hot air solder chip removal machine that they have. Couldn't really refuse the offer so sent of ECU and new chip. Before they fitted the chip they checked the code and found it had some bad checksums for whatever reason so burnt new code over the top and popped it back in. Not sure what code it actually is but it pulls 18-20psi on my boost gauge max, and 274 max MAF reading when last checked at the beginning of this year, engine is all stock.
I only paid what basically amounts as a beer token gesture for sorting it all out for me. I've spoken to the chap I dealt with numerous times and would'nt hesitate to recommend or use for all future tuning work. His advice on what is and is'nt suitable for my applications has been spot on. If it was'nt for the additioanl hobbies, 18month old little girl and twins on the way my now distant RS4 would have also gone there.......

[saf]

With a decat, you should see 350 - 360 hp and anout 540 nm torque.
,

Really? What is your FATs time?

I got no cats/precats, 2.5" all the way from manifold and remap. On the tuning run Doug recorded 1 fats time of 4.89.
He estimated 330bhp.

Thats really good mate.

I cant remember my FATs time. Ive got a dual Miltek with pre cats gutted and decat. When Mihnea did mine he worked it out to be between 330 and 350. This was in June this year. Since then Ive had the car decatted which has probably added in the region of 20 brake on it minimum. It certainly felt a lot quicker after the decat. So I estimate it at between 340 at least up to 360. Its only an estimate and could be quite off.

I think its more like 350.A friend of mine has a 330hp SKN remap and we were pretty much neck and neck give or take a few inches. when we put our cars up against each other. He was running more boost than me but i had pre cats gutted. Was an even match. Since then Ive had the decat, it does feel a lot faster. Around 10% faster if I was to judge it. Lets say %30 horses. SO Look slike Im pushing around 350 ish.

Ill no doubt do a few logs when I have time and put them up.