Some nice K04/RS6 fats with *bare minimum* fuel to ponder...

Mike2kS4 · 09-03-2005, 05:39 AM

Since the car felt pretty strong I decided to see what it could do with a paltry ~43# of fuel. It felt a bit slower than usual up top, but seemed pretty OK otherwise. I did two runs like this within 3mins of one-another.

Kinda drops off more than usual up-top, but otherwise

Ouch, fueling just went from "not much" to "nada".

448g/s peak. Got flow?

Boost was 1.65spike tapering to 1.55 up top. It'll be so much faster when I go back to larger fueling at this boost level

94oct, half-tank, timing sucked due to the leanness at 12 peak CF's were at 15 or so bwahahaha, ummm... 76degF. XR with timing at zero.

I'm not doing this again after seeing the data, but it's good info to have

Thanks MarkP for the new ECUx data-suite. It works great

NogaroPR · 09-03-2005, 06:23 AM

PSmalls::DoggieStyle · 09-03-2005, 06:25 AM

For comparison's sake, I'm flowing ~350 g/s. I can't believe you are flowing almost 30% more than me with only slightly more boost.

Conclusion: RS6 Hybrids>Straight K04s

PSmalls::DoggieStyle · 09-03-2005, 06:26 AM

http://www.goapr.com

low rider · 09-03-2005, 06:27 AM

PSmalls::DoggieStyle · 09-03-2005, 06:29 AM

To go from 88mm reading to 73mm reading, multiply by ~1.45.

To go from 83mm (RS4 MAF that I've got) to 73mm reading, multiply by ~1.30.

This is all assuming you're still using stock MAF sensor in a straight through MAF.

low rider · 09-03-2005, 06:33 AM

low rider · 09-03-2005, 06:37 AM

Mark P · 09-03-2005, 06:56 AM

glad to see the templates worked out.

What are the EGTs looking like for getting that lean up top? Any activity, or was it too quick of a pull to really heat up

Also, can we say now that when one goes over 100% duty cycle, that they're is not any more fuel up there, proven by your O2's going lean? Or is that what your O2V curve normally looks like? Just curious how this data compares to what you saw the other day.

B5QShip · 09-03-2005, 07:26 AM

09-03-2005, 05:39 AM	#1
Mike2kS4 Elder Member Account #: 38083 Join Date: Jun 2002 Posts: 12,105	*Some nice K04/RS6 fats with bare minimum* fuel to ponder...** Since the car felt pretty strong I decided to see what it could do with a paltry ~43# of fuel. It felt a bit slower than usual up top, but seemed pretty OK otherwise. I did two runs like this within 3mins of one-another. Kinda drops off more than usual up-top, but otherwise Ouch, fueling just went from "not much" to "nada". 448g/s peak. Got flow? Boost was 1.65spike tapering to 1.55 up top. It'll be so much faster when I go back to larger fueling at this boost level 94oct, half-tank, timing sucked due to the leanness at 12 peak CF's were at 15 or so bwahahaha, ummm... 76degF. XR with timing at zero. I'm not doing this again after seeing the data, but it's good info to have Thanks MarkP for the new ECUx data-suite. It works great __________________ 2002 S4 Avant, 6spd. Bone stock. <a href="http://www.autospeed.us"> </a> Caveat: Any advice I express regarding potential tuning and such is purely informational. If your knowledge and abilities are not up to the task, no amount of advice can assist.

09-03-2005, 06:23 AM	#2
NogaroPR Junior Member Account #: 93915 Join Date: Jun 2005 Posts: 825	Where can I get ECU-X? __________________ _________________________ 410 AWHP - 411 TQ/lbs 12.3 @ 115.94 Picture By: Luis "Yeyo" Burgos " To have another Language is to possess another soul" (Charles Magne 742 - 814 A.D.)

09-03-2005, 06:25 AM	#3
PSmalls::DoggieStyle Elder Member Account #: 69223 Join Date: Jan 2004 Posts: 30,285	Damn, get some more fuel in there bud. ;-) Quick car. For comparison's sake, I'm flowing ~350 g/s. I can't believe you are flowing almost 30% more than me with only slightly more boost. Conclusion: RS6 Hybrids>Straight K04s

09-03-2005, 06:26 AM	#4
PSmalls::DoggieStyle Elder Member Account #: 69223 Join Date: Jan 2004 Posts: 30,285	APR http://www.goapr.com

09-03-2005, 06:27 AM	#5
low rider Junior Member Account #: 7829 Join Date: Jul 2000 Posts: 862	I know I must be missing something but where is the 4448 gs maf numbers coming from, ru scaling ?

09-03-2005, 06:29 AM	#6
PSmalls::DoggieStyle Elder Member Account #: 69223 Join Date: Jan 2004 Posts: 30,285	Converting reading in 88mm housing to what it would have read in stock S4 (73mm) housing. To go from 88mm reading to 73mm reading, multiply by ~1.45. To go from 83mm (RS4 MAF that I've got) to 73mm reading, multiply by ~1.30. This is all assuming you're still using stock MAF sensor in a straight through MAF.

09-03-2005, 06:33 AM	#7
low rider Junior Member Account #: 7829 Join Date: Jul 2000 Posts: 862	thanks, bookmarking now

09-03-2005, 06:37 AM	#8
low rider Junior Member Account #: 7829 Join Date: Jul 2000 Posts: 862	BTW, what's the mutiplier for scaling a 85mm housing ? 1.375 or so

09-03-2005, 06:56 AM	#9
Mark P AudiWorld Expert Account #: 139 Join Date: Mar 2000 Posts: 27,942	very impressive! glad to see the templates worked out. What are the EGTs looking like for getting that lean up top? Any activity, or was it too quick of a pull to really heat up Also, can we say now that when one goes over 100% duty cycle, that they're is not any more fuel up there, proven by your O2's going lean? Or is that what your O2V curve normally looks like? Just curious how this data compares to what you saw the other day. __________________ Mark P Current: '04 Porsche 911 Turbo, Speed Yellow - website - 26k miles '02 Audi S4 Avant, Imola Yellow, APR Stg3 - website - 191k miles '01.5 VW Golf 4dr 1.8T, Satin Silver, GT28R - website - 203k miles '09 VW Tiguan 2.0T, Candy White - Hers Previous: '00 Audi A4 1.8T, Silver - Quattrobonium website

09-03-2005, 07:26 AM	#10
B5QShip AudiWorld Super User Account #: 78120 Join Date: Jul 2004 Posts: 7,743	holy crap - grabs forehead & heads back to bed to sleep off hangover __________________

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