Mission achieved sub 3 FATS with a little cheating

Pop3 · 11-16-2005, 02:02 PM

so after last nights one sub 3 run I decided to add 1 gal of toluene to 1/4 tank of 93 and also added some secondary and went for my usual FATS route which consist of 8 to 10 runs. So I have removed my MBC for now and I'm only running N75J + TDC.

Flame all you want but I'm happy.

The ecu seems to detect : ) sub 3 runs as it begin to limit boost to 1.25bar on higher rpms (I bet its from high EGTs?) but the car still pulled low 3.0x. worst run was 3.12 (slight incline)which was also the first time ecu lowered boost

No spare, about 1/4 tank of about 96oct and straight k04s, rs4 ICs and labrees + some weight reduction (CF hood, battery + 80lbs MY-related). Oh, and very importantly 32F. All runs done on flat road.

Mark P · 11-16-2005, 02:08 PM

Also sorta funny that you have both of these pics in your pic poster:

dscottjr · 11-16-2005, 02:12 PM

If you don't have an mbc and you are using a tcd and the ecu is requesting a number higher than where the tcd is clamping the signal, it will never close (oops, i mean open) the wgs, right?

please explain. thanks.

Mark P · 11-16-2005, 02:13 PM

open WGs causes air to bypass the turbos

Pop3 · 11-16-2005, 02:13 PM

Mark P · 11-16-2005, 02:14 PM

A4s as well? Kinda odd since B5 A4's in the US since 96 did not have an external antenna like that

dscottjr · 11-16-2005, 02:16 PM

Pop3 · 11-16-2005, 02:17 PM

Mike2kS4 · 11-16-2005, 02:17 PM

Great job nevertheless. Lowest temps I've done fats with thusfar is 55F. I can't wait until it gets colder

Pop3 · 11-16-2005, 02:19 PM

11-16-2005, 02:02 PM	#1
Pop3 Junior Member Account #: 57166 Join Date: Jun 2003 Posts: 1,378	Mission achieved sub 3 FATS with a little cheating so after last nights one sub 3 run I decided to add 1 gal of toluene to 1/4 tank of 93 and also added some secondary and went for my usual FATS route which consist of 8 to 10 runs. So I have removed my MBC for now and I'm only running N75J + TDC. Flame all you want but I'm happy. The ecu seems to detect : ) sub 3 runs as it begin to limit boost to 1.25bar on higher rpms (I bet its from high EGTs?) but the car still pulled low 3.0x. worst run was 3.12 (slight incline)which was also the first time ecu lowered boost No spare, about 1/4 tank of about 96oct and straight k04s, rs4 ICs and labrees + some weight reduction (CF hood, battery + 80lbs MY-related). Oh, and very importantly 32F. All runs done on flat road. __________________ Next mods: chipset with overboost option and stg3 rims (folk+nittos) and interior ledlights

11-16-2005, 02:08 PM	#2
Mark P AudiWorld Expert Account #: 139 Join Date: Mar 2000 Posts: 27,942	rear antenna??? Also sorta funny that you have both of these pics in your pic poster: __________________ 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

11-16-2005, 02:12 PM	#3
dscottjr Member Account #: 42392 Join Date: Sep 2002 Posts: 14,595	So, you're basically running max possible boost? If you don't have an mbc and you are using a tcd and the ecu is requesting a number higher than where the tcd is clamping the signal, it will never close (oops, i mean open) the wgs, right? please explain. thanks. __________________ 00 S4, Euro spider hose mod!! 04 allroad, needs rs6 intercoolers, k04s and a cargo box...

11-16-2005, 02:13 PM	#4
Mark P AudiWorld Expert Account #: 139 Join Date: Mar 2000 Posts: 27,942	or rather, thay will always be closed :o) open WGs causes air to bypass the turbos __________________ 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

11-16-2005, 02:13 PM	#5
Pop3 Junior Member Account #: 57166 Join Date: Jun 2003 Posts: 1,378	thanks for pointing that out. yep euro 99 MY __________________ Next mods: chipset with overboost option and stg3 rims (folk+nittos) and interior ledlights

11-16-2005, 02:14 PM	#6
Mark P AudiWorld Expert Account #: 139 Join Date: Mar 2000 Posts: 27,942	Whoa, they had antennas back then? I had no idea - I figured it was aftermarket A4s as well? Kinda odd since B5 A4's in the US since 96 did not have an external antenna like that __________________ 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

11-16-2005, 02:16 PM	#7
dscottjr Member Account #: 42392 Join Date: Sep 2002 Posts: 14,595	Yeah, that's what i meant;-) __________________ 00 S4, Euro spider hose mod!! 04 allroad, needs rs6 intercoolers, k04s and a cargo box...

11-16-2005, 02:17 PM	#8
Pop3 Junior Member Account #: 57166 Join Date: Jun 2003 Posts: 1,378	It can be adjusted with the TCD and the ecu did lower the boost. N75 controls the spoolup mostly. __________________ Next mods: chipset with overboost option and stg3 rims (folk+nittos) and interior ledlights

11-16-2005, 02:17 PM	#9
Mike2kS4 Elder Member Account #: 38083 Join Date: Jun 2002 Posts: 12,105	Aha, 32F! Great job nevertheless. Lowest temps I've done fats with thusfar is 55F. I can't wait until it gets colder __________________ 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.

11-16-2005, 02:19 PM	#10
Pop3 Junior Member Account #: 57166 Join Date: Jun 2003 Posts: 1,378	Maybe its for the GSM in the front armrest? __________________ Next mods: chipset with overboost option and stg3 rims (folk+nittos) and interior ledlights

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