LOGS. APR Stage 3. 91 octane. Leak at compressor inlet. Bit lean?

Roque · 12-11-2008, 08:46 AM

Finally logged my car with ecux. I haven't found any APR stage 3, 91 octane logs so this is a good one for the archives.

I have a known leak at the driver's side compressor inlet, so some unmetered air is getting in. Am I running a bit lean?

I'll log again when I get around to removing the inlet pipe (pain in the ass) and see what's going on with the o-ring.

Does 4.4s FATS sound about right for 91 octane APR in an avant?

Stats:
Avant. ~4000 lbs during log.
Ambient = 65 F.
Altitude = 10 ft.
Relative Humidity = ~60%.
91 Octane.
APR Stage 3. Ver 2, 91 Octane code.
AWE Intercoolers.
APR Bipipe.
APR Stealth exhaust.
Piggie pipes.

BTW, Nye's ECUx Plot is the shiznit.

This plot has been adjusted to SAE conditions:

DocSlowMiniPerson · 12-11-2008, 08:56 AM

Roque · 12-11-2008, 08:59 AM

TwentyValveB5+S4 · 12-11-2008, 10:48 AM

I know I'm learning when I'm thinking like you and Nye...

His injectors are already close to maxed out, but I guess it doesn't hurt to try

nyet · 12-11-2008, 10:50 AM

add some pri if your trims aren't too bad.

Roque · 12-11-2008, 10:52 AM

All the metered air is going into the compressor and then some more is going in.

nyet · 12-11-2008, 11:17 AM

brainfart.

Roque · 12-11-2008, 11:53 AM

OSin456 · 12-11-2008, 12:33 PM

For straight 91 that tune is just damn solid on 91. Not the fastest, but not pushing the turbos, no frills, just solid.

DocSlowMiniPerson · 12-11-2008, 01:30 PM

12-11-2008, 08:46 AM	#1
Roque AudiWorld Senior Member Account #: 124609 Join Date: May 2007 Posts: 3,000	LOGS. APR Stage 3. 91 octane. Leak at compressor inlet. Bit lean? Finally logged my car with ecux. I haven't found any APR stage 3, 91 octane logs so this is a good one for the archives. I have a known leak at the driver's side compressor inlet, so some unmetered air is getting in. Am I running a bit lean? I'll log again when I get around to removing the inlet pipe (pain in the ass) and see what's going on with the o-ring. Does 4.4s FATS sound about right for 91 octane APR in an avant? Stats: Avant. ~4000 lbs during log. Ambient = 65 F. Altitude = 10 ft. Relative Humidity = ~60%. 91 Octane. APR Stage 3. Ver 2, 91 Octane code. AWE Intercoolers. APR Bipipe. APR Stealth exhaust. Piggie pipes. BTW, Nye's ECUx Plot is the shiznit. This plot has been adjusted to SAE conditions: __________________ 2001 A4 1.8T. (Sold) 2001.5 S4. (Sold) 2002 A6 Avant. 2002 S4 Avant, 6MT, Sport. APR Stage 3. OEM RS4 Seats Installation RS4 Fuel Pump Installation Unclog Avant Sunroof Drains Quickly Removeable Front License Plate Glove Box Squeak Fix Plastic Squeaks? Need Floor Mats? Radio Reception Problems? Latest APR Stage 3 FATS, 91 Oct DIY Thread

12-11-2008, 08:56 AM	#2
DocSlowMiniPerson Junior Member Account #: 142564 Join Date: Jan 2008 Posts: 1,680	Not bad for a fairly conservative tune. You could try adding ~5% primary fuel to test a richer AFR. __________________ ------------------------------------------------------------ Gone But Not Forgotten --> Midgyet Tuned Stg 3 2001.5 Nogaro S4

12-11-2008, 08:59 AM	#3
Roque AudiWorld Senior Member Account #: 124609 Join Date: May 2007 Posts: 3,000	Do you think I'll be a bit richer when I fix my leak at the compressor inlet? __________________ 2001 A4 1.8T. (Sold) 2001.5 S4. (Sold) 2002 A6 Avant. 2002 S4 Avant, 6MT, Sport. APR Stage 3. OEM RS4 Seats Installation RS4 Fuel Pump Installation Unclog Avant Sunroof Drains Quickly Removeable Front License Plate Glove Box Squeak Fix Plastic Squeaks? Need Floor Mats? Radio Reception Problems? Latest APR Stage 3 FATS, 91 Oct DIY Thread

12-11-2008, 10:48 AM	#4
TwentyValveB5+S4 AudiWorld Expert Account #: 87200 Join Date: Jan 2005 Posts: 34,773	That's what I was going to say too :) I know I'm learning when I'm thinking like you and Nye... His injectors are already close to maxed out, but I guess it doesn't hurt to try __________________ 2008 RS4, 2001.5 AWE Stage 3 S4

12-11-2008, 10:50 AM	#5
nyet Member Account #: 13093 Join Date: Dec 2000 Posts: 33,114	you might even go a bit more lean when you fix it. metered air is escaping right now. add some pri if your trims aren't too bad. __________________ ------------------------------------- "It's easier to practice medicine without a license in this country than it is to get info on tuning Motronic." -JasonS9 ECUxPlot - my java based ECUx/VAGCOM/VCDS plotter My hacked version of Flyboy's ECUx template. S4Wiki - CONTRIBUTE TODAY! Web based FATS calculator for ECUx and VAGCOM logfiles Sync your iPod under Linux! Definitive S4 DIY Thread of Doom AWOT Brain Trust #101 AWOT Axis of Evil Member #6 Member, Aw0t Fish Taco Dinner Club I say to you that the VCR is to the American film producer and the American public as the Boston strangler is to the woman home alone." - Jack Valenti, President and CEO of the MPAA this site is NOT for information sharing it's strictly for multiple monologues that result in none of the participants changing their point of view - frank

12-11-2008, 10:52 AM	#6
Roque AudiWorld Senior Member Account #: 124609 Join Date: May 2007 Posts: 3,000	I think you read it incorrectly. The leak is on the INLET. So unmetered air is going in, not out. All the metered air is going into the compressor and then some more is going in. __________________ 2001 A4 1.8T. (Sold) 2001.5 S4. (Sold) 2002 A6 Avant. 2002 S4 Avant, 6MT, Sport. APR Stage 3. OEM RS4 Seats Installation RS4 Fuel Pump Installation Unclog Avant Sunroof Drains Quickly Removeable Front License Plate Glove Box Squeak Fix Plastic Squeaks? Need Floor Mats? Radio Reception Problems? Latest APR Stage 3 FATS, 91 Oct DIY Thread

12-11-2008, 11:17 AM	#7
nyet Member Account #: 13093 Join Date: Dec 2000 Posts: 33,114	errr sorry. yea. my bad. brainfart. __________________ ------------------------------------- "It's easier to practice medicine without a license in this country than it is to get info on tuning Motronic." -JasonS9 ECUxPlot - my java based ECUx/VAGCOM/VCDS plotter My hacked version of Flyboy's ECUx template. S4Wiki - CONTRIBUTE TODAY! Web based FATS calculator for ECUx and VAGCOM logfiles Sync your iPod under Linux! Definitive S4 DIY Thread of Doom AWOT Brain Trust #101 AWOT Axis of Evil Member #6 Member, Aw0t Fish Taco Dinner Club I say to you that the VCR is to the American film producer and the American public as the Boston strangler is to the woman home alone." - Jack Valenti, President and CEO of the MPAA this site is NOT for information sharing it's strictly for multiple monologues that result in none of the participants changing their point of view - frank

12-11-2008, 11:53 AM	#8
Roque AudiWorld Senior Member Account #: 124609 Join Date: May 2007 Posts: 3,000	No prob. I hope fixing the leak helps me a bit. __________________ 2001 A4 1.8T. (Sold) 2001.5 S4. (Sold) 2002 A6 Avant. 2002 S4 Avant, 6MT, Sport. APR Stage 3. OEM RS4 Seats Installation RS4 Fuel Pump Installation Unclog Avant Sunroof Drains Quickly Removeable Front License Plate Glove Box Squeak Fix Plastic Squeaks? Need Floor Mats? Radio Reception Problems? Latest APR Stage 3 FATS, 91 Oct DIY Thread

12-11-2008, 12:33 PM	#9
OSin456 AudiWorld Senior Member Account #: 42092 Join Date: Aug 2002 Posts: 1,086	Or just add a meth kit to richen it up a tad. For straight 91 that tune is just damn solid on 91. Not the fastest, but not pushing the turbos, no frills, just solid. __________________ ASP Stage 3 Avant <a href="http://www.wunderground.com/US/CA/Hermosa_Beach.html?bannertypeclick=big2"> </a>

12-11-2008, 01:30 PM	#10
DocSlowMiniPerson Junior Member Account #: 142564 Join Date: Jan 2008 Posts: 1,680	It's almost in his favor that they're maxxed up top. Added primary will help mid-range only. __________________ ------------------------------------------------------------ Gone But Not Forgotten --> Midgyet Tuned Stg 3 2001.5 Nogaro S4

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