NefMoto

Hi,


Below is my logs from my 3.2Turbo, ( 85mm MAF) vs RPM. At first the MAF curve follows RPM but then it kinda flattens out? Is this normal?. I think Im sniffing around 350hp+ but that MAF value dont seem to add up to me?

Also added Lambda log.

1) post the actual logs
2) why not graph with RPM as x

Also log MAF voltage, MAP, and TB angle

Heres the real logs. I think TB% is there but not angle. "Think" i undestand why you want TB in angle, but feel free to explain. Is it because the value i see is only the requested angle?

 

Are both VE and manifold pressure constant?

If not, what do you think?

What version of VCDS is this? It has bizarre column names, like "Mass air taken in" and "Engine RPM"

It VCDS 409.1....I Tried to use Me7 Logger but it didnt work with my ECU Me7.1.1G ST10.. Or have anyone here got it to work properly? 


Well.. So whats happening here is that the curve looks like this because VE and the flow is not constant that makes sense right?  :)

I just thought to my self that the curve deviated so qiuckly. But its probably the turbo that kicks in BIG time LAG

Get the updated version. I keep having to dork around with ECUxPlot because old versions were all over the map with column names. None of the useful functions will work right. You can also try a snapshot

http://nyet.org/cars/ECUxPlot/nightly/


Unfortunately, no.


If pressure goes up, should MAF should deviate upwards or downwards?

BTW VE probably isn't changing as much as pressure.

Thanks i´ll try that new version.. !

You really ought to get a proper copy of VCDS...

You are correct about that. I cant even reset my headlights with my old version that i have now. But the budget has gone out of the window  >:(   Im gonan use what i have for now.

Anyway I have decided to reset my tune and start over, something is not right

Maybe it's because you are turbo'ing a motor that has an ECU that doesn't support boost?

Hmm maybe you´re right... What ECU does United Motorsport and C2 use? Have they changed to a different ECU´s
Im open for advice.

PRJ can modify the ECU's for boost control, I asked the same question the other month.  Have a look for R32 with S4 loom, etc.

Ahh Intressting idea i must say.. But im gonna stick to my ECU. This ECU have no control for the boost but im running manual boost valve right now on low boost. I´ll solve that issue later.

This ECU measures same stuff as the other ECU´s   If i have managed to come this far i think im going to be able to make a really good tune for this later. I have the whole winter to tune this car. 

So what im gonna do here first is to calibrate my MAF better then things hopefully will be better.

I'm saying that he modifies the file for boost.  He'll probably use the N249/119/Secondary O2 for N75 control.  Maps adjusted so suit.

Personally, it's the only way to get it to work, shy of fitting a mappable V6 turbo ECU.

Sounds like a hell of a job..

BTW.. Im Rescaling my MAF right now and i have measured my new maf to be like appr. 15% larger (dont have it here right now).. I will then take the stock MAF values and Multiply with 1.15..

Yeah, for him.  Not for you though.  Literally, send your file, give him money, attach an N75 to a disconnected sensor and tune as normal.

Trying to patch an N/A file to see "boost" is nigh on impossible, unless you're >PRJ.

When scaling MAF i will multiply my MAF curve values with the increased % on my new MAF.  My scaling starts from -60.40, ive seen ppl talk about this b4 but shall i include the negative scale when calculating the curve aswell?

I gave up.

LoL well I haven´t .. I re calculated my MAF better and now Fueltrims are spot on.. Been logging flashing, logging flashin, loggin flashing this weekend and this tune seems to be alive and kicking really good now. Pulled almost equal against my friends Audi S2 with 350 measured Whp. hmm i wonder what that is in crank hp?. I think i can squeeze some more out of it on stock rods. Aiming for 1.0 bar before winter comes then its time for comp drop and h-beams :o)