Decided to do some 91 oct FATs... needs some more tuning, i hate changing stuff

Snow Trooper *Swiss* · 05-23-2006, 08:46 AM

well i had finally ran a few tanks of 91 through the car and yesterday i was sure that it was 100 % chevron branded craptane in the tank. I was right near Dutch flat off I-80, good stretch of road with exits spaced about 2 miles apart. Straight and flat for about a mile. made 5 laps for 10 runs total and all were within .05 of this up and down. this was about the average. I deffinatly need to tweak a little more for this fuel. I am spiking to 1.45 bar, setteling at like 1.37 bar, and timing is 4.5 at 4240 rpms going up to a peak of 15 at 6680 rpms. i dont log o2s but the wideband was sitting at 12.7:1.... blah (was about 12.3:1 in the valley). so today i will try to get some pulls in with a AFR of about 11.5:1 to compensate for this fuel. the elevation is pretty hight there, i know atleast 3200 feet (think actual is like 3700) so i wasnt surprised by slightly lower maf readings, then in turn less fuel. all in all i dont think its bad for a starting point. did i mention i hate having to re-tweak my car? btw- this is as close to full wieght as my car gets, and with the extra crap that was in it i would say that it was full wieght.

lemieux@curbside · 05-23-2006, 08:49 AM

Snow Trooper *Swiss* · 05-23-2006, 09:05 AM

BUFFALONOGAROpebFATS · 05-23-2006, 09:13 AM

lemieux@curbside · 05-23-2006, 09:14 AM

and the EBS takes care of high spikes ..or vice-versa ?

EE:OutofBounds · 05-23-2006, 09:16 AM

JBear::FATS · 05-23-2006, 09:28 AM

Snow Trooper *Swiss* · 05-23-2006, 09:36 AM

lemieux@curbside · 05-23-2006, 10:11 AM

i guess you run the MBC alone ..

BUFFALONOGAROpebFATS · 05-23-2006, 10:16 AM

05-23-2006, 08:46 AM	#1
Snow Trooper Swiss Senior Member Account #: 108321 Join Date: May 2006 Posts: 7,021	Decided to do some 91 oct FATs... needs some more tuning, i hate changing stuff well i had finally ran a few tanks of 91 through the car and yesterday i was sure that it was 100 % chevron branded craptane in the tank. I was right near Dutch flat off I-80, good stretch of road with exits spaced about 2 miles apart. Straight and flat for about a mile. made 5 laps for 10 runs total and all were within .05 of this up and down. this was about the average. I deffinatly need to tweak a little more for this fuel. I am spiking to 1.45 bar, setteling at like 1.37 bar, and timing is 4.5 at 4240 rpms going up to a peak of 15 at 6680 rpms. i dont log o2s but the wideband was sitting at 12.7:1.... blah (was about 12.3:1 in the valley). so today i will try to get some pulls in with a AFR of about 11.5:1 to compensate for this fuel. the elevation is pretty hight there, i know atleast 3200 feet (think actual is like 3700) so i wasnt surprised by slightly lower maf readings, then in turn less fuel. all in all i dont think its bad for a starting point. did i mention i hate having to re-tweak my car? btw- this is as close to full wieght as my car gets, and with the extra crap that was in it i would say that it was full wieght.

05-23-2006, 08:49 AM	#2
lemieux@curbside AudiWorld Super User Account #: 47312 Join Date: Dec 2002 Posts: 17,783	what do you control the boost with ? __________________ ************************************************ ************************************* "it's a B5 S4 ,it may break down, but its far enough ahead, by the time its fixed, you still haven't caught up." -best line i've heard ;) AUDI B5 S4 detail info (pdf file) that everyone should read and have saved on his computer AUDI B5 RS4 study guide detail info (pdf file) FATS database VAG-COM LOCATOR ASP Hands down the "BESTEST" tuner out there.

05-23-2006, 09:05 AM	#3
Snow Trooper Swiss Senior Member Account #: 108321 Join Date: May 2006 Posts: 7,021	ball and spring MBC... i visualy see higher spikes because of my electronic boost guage

05-23-2006, 09:13 AM	#4
BUFFALONOGAROpebFATS Member Account #: 33161 Join Date: Feb 2002 Posts: 3,304	very decent __________________ CNPE founding member

05-23-2006, 09:14 AM	#5
lemieux@curbside AudiWorld Super User Account #: 47312 Join Date: Dec 2002 Posts: 17,783	so you have both in there? MBC is the primary controlling piece ? and the EBS takes care of high spikes ..or vice-versa ? __________________ ************************************************ ************************************* "it's a B5 S4 ,it may break down, but its far enough ahead, by the time its fixed, you still haven't caught up." -best line i've heard ;) AUDI B5 S4 detail info (pdf file) that everyone should read and have saved on his computer AUDI B5 RS4 study guide detail info (pdf file) FATS database VAG-COM LOCATOR ASP Hands down the "BESTEST" tuner out there.

05-23-2006, 09:16 AM	#6
EE:OutofBounds Elder Member Account #: 23890 Join Date: Aug 2001 Posts: 14,300	*just "decent"? that shts fast for 91** __________________ Out of Bounds Rideshop (908) 232-4500 (Nike SB, Supra, Diamond, Krew, Burton, Rome, Grenade, etc) Out of Bounds MySpace

05-23-2006, 09:28 AM	#7
JBear::FATS Senior Member Account #: 9725 Join Date: Sep 2000 Posts: 4,427	That is VERY good on 91. Anything in the 3's on 91 is above average IMO. __________________ ________________________________________ 2001 S4 6-Speed Santorin Engine/Drivetrain: ASP Custom Tuned Stage III Fueling, RS4 Y-Pipe/Clutch/Fuel Pump/IC's, X1 Intake, Samco F-Hose, APR Bi-Pipe, Piggie Pipes, Miltek Single, AWE DTS, APR Snub, TG SS, VAST Water/Meth Kit. Suspension/Brakes: Vogtland GT, Neuspeed Rear Swaybar (Med), Stoptech 332 BBK. Exterior: 18" BBS CH, M3 Lip Spoiler, SPP Foglight Bulbs, RS4 Grill, E-Codes. Interior: UUC Alcantata Boot, TwinData EFU, Strat S4 Logo Floor Mats, HW V1, PhatBox.

05-23-2006, 09:36 AM	#8
Snow Trooper Swiss Senior Member Account #: 108321 Join Date: May 2006 Posts: 7,021	just a MBC, i think you mistunderstood electronic boost guage for EBC

05-23-2006, 10:11 AM	#9
lemieux@curbside AudiWorld Super User Account #: 47312 Join Date: Dec 2002 Posts: 17,783	ah ok..yes i did think you had an EBC there too with the gauge .. i guess you run the MBC alone .. __________________ ************************************************ ************************************* "it's a B5 S4 ,it may break down, but its far enough ahead, by the time its fixed, you still haven't caught up." -best line i've heard ;) AUDI B5 S4 detail info (pdf file) that everyone should read and have saved on his computer AUDI B5 RS4 study guide detail info (pdf file) FATS database VAG-COM LOCATOR ASP Hands down the "BESTEST" tuner out there.

05-23-2006, 10:16 AM	#10
BUFFALONOGAROpebFATS Member Account #: 33161 Join Date: Feb 2002 Posts: 3,304	no, very decent ;). i agree, it is very fast, i was not hinting at any mediocrity. __________________ CNPE founding member

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