mk4 aeg azg 2.0T 1.8T K03 build thread with a twist

[vw collector]

Quote, originally posted by elRey »

I might do that. Will you be around tomorrow (Sun)?

Most likely yes, just call me and come and get it if you like...

[elRey]

Quote, originally posted by vw collector »

Most likely yes, just call me and come and get it if you like...

Thanks for bringing the MBC by Pedro!

I've finally finished installing the LC-1 WB controller. I have output 1 simulating the stock pre-cat NB O2 for the ECU. And I have the output 2 showing full AF from 0-1v on post-cat O2 line. I'm not using a post-cat sensor.

So I can log true AFR on O2 post-cat voltage

3psi = 12.5 AFR (+ 4bar FPR). I'll now start to raise boost slightly until AFR starts to lean out.


Modified by elRey at 1:59 AM 4-14-2008

[vdubbugman53]

tuning on narrow band AFR FTL

[the_q_jet]

Quote, originally posted by elRey »

Thanks for bringing the MBC by Pedro! I've finally finished installing the LC-1 WB controller. I have output 1 simulating the stock pre-cat NB O2 for the ECU. And I have the output 2 showing full AF from 0-1v on post-cat O2 line. I'm not using a post-cat sensor. So I can log true AFR on O2 post-cat voltage 3psi = 12.5 AFR (+ 4bar FPR). I'll now start to raise boost slightly until AFR starts to lean out. Modified by elRey at 1:59 AM 4-14-2008

uh...a/f after the cat will not be accurate unless you dont have a cat now...you're still on stock injectors correct?

[elRey]

Quote, originally posted by the_q_jet »

uh...a/f after the cat will not be accurate unless you dont have a cat now...you're still on stock injectors correct?

I have the post-cat bung plugged. There is no sensor after the cat.
I have a Wideband sensor before the cat controlled by the LC-1.
The LC-1 has 2 output signals that I can program.

Output 1 -> ecu in place of pre-cat NB (0-1v) sensor, programed to simulate a NB that the ECU uses.

Output 2 -> ecu (wired) in place of post-cat NB (0-1v) sensor, programed to send full range of AFR from 0-1v instead of the narrow switching range around 14.7 like a true NB sensor does.

1 WB sensor feeds both per-cat and post-cat signals to ECU.

So, now I can have the ECU act normal, AND log true AFR on post-cat voltages.


Modified by elRey at 11:56 AM 4-14-2008

[elRey]

Quote, originally posted by vdubbugman53 »

tuning on narrow band AFR FTL

??? I'm not tuning on a NB.

[the_q_jet]

Quote, originally posted by elRey »

I have the post-cat bung plugged. There is no sensor after the cat. I have a Wideband sensor before the cat controlled by the LC-1. The LC-1 has 2 output signals that I can program. Output 1 -> ecu in place of pre-cat NB (0-1v) sensor, programed to simulate a NB that the ECU uses. Output 2 -> ecu (wired) in place of post-cat NB (0-1v) sensor, programed to send full range of AFR from 0-1v instead of the narrow switching range around 14.7 like a true NB sensor does. 1 WB sensor feeds both per-cat and post-cat signals to ECU. So, now I can have the ECU act normal, AND log true AFR on post-cat voltages. Modified by elRey at 11:56 AM 4-14-2008

oh i see what youre saying...btw the OEM PRE CAT SENSOR...how many wires are on it? 4 or 5?

[GaTeIg]

I wouldnt mins stopping by and checking out your setup myself... where bouts are you?

[elRey]

Quote, originally posted by the_q_jet »

oh i see what youre saying...btw the OEM PRE CAT SENSOR...how many wires are on it? 4 or 5?

4 wires (pre and post cat sensors are the same expect for length of wires) [** for AEG cars **]

Quote, originally posted by GaTeIg »

I wouldnt mins stopping by and checking out your setup myself... where bouts are you?

I'm in Woodstock.... ~35min north of Atl.


Modified by elRey at 12:17 PM 4-14-2008

[the_q_jet]

Quote, originally posted by elRey »

4 wires (pre and post sensors are the same expect for length of wires) [** for AEG cars **]

ok cool

[GaTeIg]

Canton here...

[elRey]

What area is your work?

[GaTeIg]

.


Modified by GaTeIg at 12:25 PM 4-14-2008

[GaTeIg]

Blairsville.... 75 miles north of canton... dont ask. Ill have to stop by on the weekend if that flies with you.

[elRey]

Quote, originally posted by GaTeIg »

Ill have to stop by on the weekend if that flies with you.

Anytime

[vw collector]

Quote, originally posted by elRey »

Thanks for bringing the MBC by Pedro! I'll now start to raise boost slightly until AFR starts to lean out.

Raise the boost FTW!!!!!

[elRey]

Quote, originally posted by vw collector »

Raise the boost FTW!!!!!

7psi (short peak @ 8psi) really woke the car up....
Looking at logs now.

As I was putting your MBC on, mailman brought the boostfactory one.
I'll stop by soon to bring it back to you.... Thanks, Again.

[vdubbugman53]

from what i know narrow band is 0-1v and wide band is 0-5v

[vw collector]

Quote, originally posted by elRey »

7psi (short peak @ 8psi) really woke the car up.... Looking at logs now. As I was putting your MBC on, mailman brought the boostfactory one. I'll stop by soon to bring it back to you.... Thanks, Again.

I can just imagine, I can't wait to see all this sorted out and put it on a dyno...

[the_q_jet]

Quote, originally posted by vdubbugman53 »

from what i know narrow band is 0-1v and wide band is 0-5v

if you notice he's using an LM-1 Wideband...the way it is setup...is the LM-1 takes its wideband signal and has 2 outputs that convert that signal to 0-1v signals so the stock AEG ecu is still happy

[vdubbugman53]

ohhhh got it

[elRey]

Quote, originally posted by vdubbugman53 »

from what i know narrow band is 0-1v and wide band is 0-5v

I can program the controller to output anything I want. Since the ECU only expects a 0-1v signal from the post-car o2, I programed the WB controller to scale down the WB 0-5v to fit in the 0-1v range.

i.e. 0-5v 0v = 5 AFR ; 5v = 22 AFR
now 0-1v 0v = 5 AFR ; 1v = 22 AFR

output 1 feeding ECU for pre-cat O2 signal: (narrowband)

output 2 feeding ECU for post-cat O2 signal: (wideband on a 0-1v scale)

.
.
.

edit...

Quote, originally posted by vdubbugman53 »

ohhhh got it

Modified by elRey at 11:29 PM 4-14-2008

[elRey]

Well, I relocated the AIT sensor to the mani in hopes that the ECU will adjust timing back a bit under boost to avoid having to 'retard' timing.

It seems to have worked, BUT it also seems to lean the mixture due to the higher temps..... I'll switch the AIT back and forth to confirm.

If it is true.... then I'm a little dissappointed.

[elRey]

After some logs last nights it does look like ECU leans mixture when AITs are high. I switched back and forth between AIT locations and:

- MAF (pre-turbo) ~12.5 @ WOT but timing is being pulled via knock sensors

- mani (post-turbo) ~ 15.5 @ WOT but minimal timing pull (relative to above)

edit: also notice @ part throttle in boost a was ~15 AFR and O2 reg was off. It was only with near to full thottle that it richened up.

Logs were @ 6psi.

Again, I'm on stock injectors + 4 bar FPR.


Modified by elRey at 1:33 PM 4-17-2008

[dubscientist]

great thread.
one question. what did you swap to get such large brakes on your mk2?
im a noob so i expect flaming. its whatever

[vdubbugman53]

where is this car now?

[elRey]

in my driveway. It's what I drive when the 2.0L 16vT Jetta Wagon is down.

[jetta2dr16v]

love the ideas on both of the cars, what management are you running on the mk2?

[elRey]

Quote, originally posted by jetta2dr16v »

love the ideas on both of the cars, what management are you running on the mk2?

Thanks!

stock AEG, soon to be AEB

[elRey]

I haven't done the AEB management swap yet. I'm concerned about timing on the 10:1 AZG CR vs the 9:1 AEB CR.

[raymondlee]

how is it running on the stock management

edited...
not questioning it. Just want to know if its good enough to daily tuned like that. this would be a nice setup for my beetle. I just want a little more umph. Until i saw tihis i was saving for the c2 route.


Modified by raymondlee at 8:33 AM 4-10-2010

[16V VW]

propps! this is hot.

[das-yeti]

very interesting indeed.

[NumberOne 2nd2none]

why would you put the heat shield back on there.......your adding weight to the car.......that is a SIN....oh and i too call bull**** on a 230hp k03s.....best i have ever seen was 216 on a 1.8


Modified by vdubbugman53 at 9:07 PM 3-31-2008

You guys are seriously doubting the ko3s... smfh oh I see why I got lost in the 2.0L forums. KO3s can easily make over 300wtrq if you know what your doing sooo idk wtf you guys are talking about

[m_calloway]

hey bud was wondering if you was able to make another one? and how much?