In an effort to stir up some more *ahem* discussion...

DAP@EPL · 05-17-2006, 07:59 AM

MingsS4 · 05-17-2006, 08:01 AM

DAP@EPL · 05-17-2006, 08:03 AM

Most cars won't show any EGT activity.

-Dave Pramanik

Mark P · 05-17-2006, 08:05 AM

not what I would have expected for the car running the least boost overall.

Mark P · 05-17-2006, 08:06 AM

~~ModifiedA4~~ · 05-17-2006, 08:06 AM

very little over shoot, and quick settling time. which means each car was running very well imho.

(this is from a control systems perspective)

DAP@EPL · 05-17-2006, 08:08 AM

wagongotya · 05-17-2006, 08:08 AM

Mark P · 05-17-2006, 08:10 AM

There are other parameters involved. It's not just merely one trying to meet the other, unfortunately. One could tune a car and have actual boost right where they want it, but the "desired boost" may show different values entirely. I think some such tunes have been posted over the years.

wagongotya · 05-17-2006, 08:15 AM

05-17-2006, 07:59 AM	#1
DAP@EPL Audiworld Sponsor Account #: 6924 Join Date: Jun 2000 Posts: 19,701	*In an effort to stir up some more ahem* discussion...** __________________

05-17-2006, 08:01 AM	#2
MingsS4 AudiWorld Super User Account #: 22347 Join Date: Jul 2001 Posts: 9,850	Your EGT sensors are broken __________________

05-17-2006, 08:03 AM	#3
DAP@EPL Audiworld Sponsor Account #: 6924 Join Date: Jun 2000 Posts: 19,701	Nope. All EGT sensors only read from 945°C to 1035°C Most cars won't show any EGT activity. -Dave Pramanik __________________

05-17-2006, 08:05 AM	#4
Mark P AudiWorld Expert Account #: 139 Join Date: Mar 2000 Posts: 27,942	very nice Dave... Seems MTM has some throttle cut after max boost spike... not what I would have expected for the car running the least boost overall. __________________ 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

05-17-2006, 08:06 AM	#5
Mark P AudiWorld Expert Account #: 139 Join Date: Mar 2000 Posts: 27,942	coincidentally on all 5 cars? ;-) __________________ 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

05-17-2006, 08:06 AM	#6
~~ModifiedA4~~ Banned Account #: 143 Join Date: Mar 2000 Posts: 34,564	if i read the first graph right, DAP you and MarkPs boost curves are the best match. very little over shoot, and quick settling time. which means each car was running very well imho. (this is from a control systems perspective)

05-17-2006, 08:08 AM	#7
DAP@EPL Audiworld Sponsor Account #: 6924 Join Date: Jun 2000 Posts: 19,701	Looks as though it would do well with an MBC in parallel to limit the initial boost spike. __________________

05-17-2006, 08:08 AM	#8
wagongotya Elder Member Account #: 90994 Join Date: Apr 2005 Posts: 11,177	No joke, 22psi cut back to 16, then up to 19, then taper to 16. That's a crazy rollercoaster __________________ \|sig\| EPL Custom Tune w/ OEM RS6 Turbos. "I wish I could have a stage 3 car to be disapointed in. :-)" - IBG 2007-01-16 16:15:26 RIP O.W. Kenobi \|/sig\|

05-17-2006, 08:10 AM	#9
Mark P AudiWorld Expert Account #: 139 Join Date: Mar 2000 Posts: 27,942	well, it's more involved... There are other parameters involved. It's not just merely one trying to meet the other, unfortunately. One could tune a car and have actual boost right where they want it, but the "desired boost" may show different values entirely. I think some such tunes have been posted over the years. __________________ 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

05-17-2006, 08:15 AM	#10
wagongotya Elder Member Account #: 90994 Join Date: Apr 2005 Posts: 11,177	Why's Mark's air flow so much higher than the others (330g/s)? Was he running the ram air? __________________ \|sig\| EPL Custom Tune w/ OEM RS6 Turbos. "I wish I could have a stage 3 car to be disapointed in. :-)" - IBG 2007-01-16 16:15:26 RIP O.W. Kenobi \|/sig\|

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