k16 apexi tuning update on awe ko4 code

k04/rs6north · 10-27-2005, 08:31 PM

set primary to +9.5 tonight
finaly have to O2s in the correct range
however, may not be important, but when the k16s spike (around 3500, the O2s go major lean for a split second) - any of the k16 /24 guys experience this - may not be worth trying to tweak out (comments please)

Did a 4.0 FATS (car was fully loaded with my gear for watkings glen tomorrow but I still feel that major work is need to tweak the duty cycle)

Might be able to add 1 or 2 pts of timing

MAF (little bit stronger than last time - need a logging parter to see if there is taper to see if duty cycle has to be increased

Imolavirus@BuehnEngineering · 10-27-2005, 09:14 PM

k04/rs6north · 10-27-2005, 09:16 PM

PSmalls::DoggieStyle · 10-27-2005, 09:36 PM

I haven't see this in any logs of cars with hybrids, either.

You may actually find that the car runs better a little bit leaner.

2000s4biturbo::Uli · 10-27-2005, 09:53 PM

BoneStockS4 · 10-27-2005, 09:56 PM

They seem to stay lean down low, and then around 4000 rpms they start climbing a bit. I think its related to where my MBC is set and where boost starts to taper below the MBC setpoint, but I don't have hard data for that yet.

I really need to get ECUX I think...

Imolavirus@BuehnEngineering · 10-27-2005, 11:06 PM

with the avcr you should be able to tame that boost spike.....

EdyJun · 10-27-2005, 11:19 PM

k04/rs6north · 10-28-2005, 04:42 AM

k04/rs6north · 10-28-2005, 04:45 AM

10-27-2005, 08:31 PM	#1
k04/rs6north Junior Member Account #: 47960 Join Date: Dec 2002 Posts: 1,716	k16 apexi tuning update on awe ko4 code set primary to +9.5 tonight finaly have to O2s in the correct range however, may not be important, but when the k16s spike (around 3500, the O2s go major lean for a split second) - any of the k16 /24 guys experience this - may not be worth trying to tweak out (comments please) Did a 4.0 FATS (car was fully loaded with my gear for watkings glen tomorrow but I still feel that major work is need to tweak the duty cycle) Might be able to add 1 or 2 pts of timing MAF (little bit stronger than last time - need a logging parter to see if there is taper to see if duty cycle has to be increased __________________ 2001.5 Nogaro S4 2002 Black Allroad 6spd RIP Matthew Ammon aka O.W. Kenobi

10-27-2005, 09:14 PM	#2
Imolavirus@BuehnEngineering Elder Member Account #: 33927 Join Date: Mar 2002 Posts: 17,986	what MAF are you on? __________________ -Jacob ^^^CLICK SIG FOR BUEHN ENGINEERING WEBSITE^^^ <big><big>Website Here!!!</big></big> <big>Items For Sale</big>

10-27-2005, 09:16 PM	#3
k04/rs6north Junior Member Account #: 47960 Join Date: Dec 2002 Posts: 1,716	awe __________________ 2001.5 Nogaro S4 2002 Black Allroad 6spd RIP Matthew Ammon aka O.W. Kenobi

10-27-2005, 09:36 PM	#4
PSmalls::DoggieStyle Elder Member Account #: 69223 Join Date: Jan 2004 Posts: 30,285	I never experienced any lean 02 voltages when my K16 'brids spooled.... I haven't see this in any logs of cars with hybrids, either. You may actually find that the car runs better a little bit leaner.

10-27-2005, 09:53 PM	#5
2000s4biturbo::Uli Elder Member Account #: 65572 Join Date: Nov 2003 Posts: 14,240	what ic's do you have? __________________ MY BABIES a.k.a. CARS you want the best for your car? tell him i sent you. FATS database NOT stock ;^P nogaro 6mt my00, casa 6mt my01.5

10-27-2005, 09:56 PM	#6
BoneStockS4 Junior Member Account #: 39123 Join Date: Jun 2002 Posts: 1,725	Cool, thanks for sharing... FWIW, I haven't seen the O2's go lean like that yet on my K04/K16's They seem to stay lean down low, and then around 4000 rpms they start climbing a bit. I think its related to where my MBC is set and where boost starts to taper below the MBC setpoint, but I don't have hard data for that yet. I really need to get ECUX I think... __________________ __________________________________________________ ____________________________ __________________________________________________ ____________________________ 2002 Nogaro 6spd S4 with Sport Package click here for my photo albulm -Neuspeed RS10's with 235/35/19 Bridgestone RE050 Pole Positions (summer) -RS4 Replicas with 225/40/18 Dunlop Wintersport 3Ds (winter) -Stasis Motorsports with 700F/800R springs, corner balanced -Intrax front sway bar, Intrax 22mm rear sway bar -EPL stage 3 custom tune :) -K16/K04 Buehn Engineering hybrid turbos with ceramic coating, port and polishing, and turbine clearancing -AWE Intercoolers, Twin2, DTS -ASP 3" downpipes w/cats -VAST ceramic coated exhaust manifolds -Clutchmasters Stage 4 clutch and lightweight flywheel -Stasis high bias 4:1 center differential -Stasis Motorsport 14" 6-pot Alcon BBK -Stasis Tracksport rear brake kit -RS4 motor mounts, RS4 tranny mounts, VAST snub mount -RS4 grill, M3 lip spoiler, Euro tail lights, XM Radio -APR bi-pipe -710N BPVs, Walbro fuel pump, Samco IC hoses -Toyguy shifter -otherwise BONESTOCK... Been there, done that: -CPP front upper control arms (RIP after 20K) -Meyle "OEM" upper control arms (RIP after 17K) -Tracksports with 600F/700R/touring valving -Tracksports with 700F/800R/sport valving -Tracksports with 550F/650R/sport valving Interesting Trivia: -Clutchmasters flywheel weighs 13.95lbs.

10-27-2005, 11:06 PM	#7
Imolavirus@BuehnEngineering Elder Member Account #: 33927 Join Date: Mar 2002 Posts: 17,986	i'd keep playing with your duty cycles...... with the avcr you should be able to tame that boost spike..... __________________ -Jacob ^^^CLICK SIG FOR BUEHN ENGINEERING WEBSITE^^^ <big><big>Website Here!!!</big></big> <big>Items For Sale</big>

10-27-2005, 11:19 PM	#8
EdyJun Member Account #: 48484 Join Date: Dec 2002 Posts: 2,849	Yes, ECUx is very good for logging. __________________ 2000 Audi S4 STG 3 FATS = 3.66 w/ 91 oct AIM: EdyJun 11 September 2001 In their honor. In their memory. <font color="red">---------------------------------------------------------- <u><big> <a href="http://homepage.mac.com/edyjun1/S4/index.htm">EdyJun's S4 Directory (FAQ, DIY, Info, Tips and Help) </a> </big> </u>---------------------------------------------------------- </font>

10-28-2005, 04:42 AM	#9
k04/rs6north Junior Member Account #: 47960 Join Date: Dec 2002 Posts: 1,716	rs4 __________________ 2001.5 Nogaro S4 2002 Black Allroad 6spd RIP Matthew Ammon aka O.W. Kenobi

10-28-2005, 04:45 AM	#10
k04/rs6north Junior Member Account #: 47960 Join Date: Dec 2002 Posts: 1,716	just wanted to get it up in the correct range and will now back it off + major duty cycle tweaking __________________ 2001.5 Nogaro S4 2002 Black Allroad 6spd RIP Matthew Ammon aka O.W. Kenobi

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