Repost for weekday crowd: APR stg 2+ before and after tweaks ...

AudiS4guy - NorCal · 04-11-2005, 10:54 AM

Base Run and Test run are swapped by accident when i went back to print out the comparison report...the Actual Base Run is 169 whp and after tweaks was 221 whp. Look at the times during the run.

91 Octane ~68 degrees. My Stg2+ with AMS - no tweaks, made 194 whp and 275 tq on the same DYNO. I'm sure everyone who's been keeping up with my test knows by now that this particular dyno reads pretty damn low. We were able to get more power out of adding timing as well, unlike my AMS where I got more power by retarding timing...this is probably because AMS's timing map is far more aggressive than APR's. Kudos to APR on their A/F ratio...without any tweaks the A/F was very flat and they made sure the car sat on 12.5:1 (supposedly that ratio makes most tq) throughout our dyno run but as I've said before all cars are different and all S4's I've dyno'd so far likes to run a bit richer than 12:5.1 We only made changes to primary since A/F was already flat.
Again, we made sure EGT's and CF's were within our specs...car is actually safer to push now than before without tweaks. APR is weaksauce, no wonder I was getting smoked by E46's when I had their software, even the TAP chip I tested had more HP!!! You can see my sig for all tests i've done so far. Still trying to get my hands on Giac X and XR chip for more tests...If anyone in the area is willing to let me borrow their A Box ECU with X chip please email me. I'd rather do all of these tests on my car so we can eliminate "but it was done on a different car" factor. Please don't assume that these settings will do the same for you as all cars are different. I take no responsiblity should your engine blow up (even though theres no way really with these weaksauce settings =)

Link to original post

PSmalls::DoggieStyle · 04-11-2005, 11:08 AM

Oo.et.oO · 04-11-2005, 11:11 AM

AudiS4guy - NorCal · 04-11-2005, 11:15 AM

base run defualt and the test run as -3 timing. Just look at the colors!

Oo.et.oO · 04-11-2005, 11:17 AM

AudiS4guy - NorCal · 04-11-2005, 11:23 AM

them for comparison and printout

AudiS4guy - NorCal · 04-11-2005, 11:24 AM

DarinS4Turbo · 04-11-2005, 11:31 AM

AudiS4guy - NorCal · 04-11-2005, 11:32 AM

We were aiming for 11.3:1 - 11.7:1 and 6% is what it took to get there.

reefer_bob · 04-11-2005, 11:34 AM

04-11-2005, 10:54 AM	#1
AudiS4guy - NorCal Member Account #: 79060 Join Date: Aug 2004 Posts: 3,273	Repost for weekday crowd: APR stg 2+ before and after tweaks ... Base Run and Test run are swapped by accident when i went back to print out the comparison report...the Actual Base Run is 169 whp and after tweaks was 221 whp. Look at the times during the run. 91 Octane ~68 degrees. My Stg2+ with AMS - no tweaks, made 194 whp and 275 tq on the same DYNO. I'm sure everyone who's been keeping up with my test knows by now that this particular dyno reads pretty damn low. We were able to get more power out of adding timing as well, unlike my AMS where I got more power by retarding timing...this is probably because AMS's timing map is far more aggressive than APR's. Kudos to APR on their A/F ratio...without any tweaks the A/F was very flat and they made sure the car sat on 12.5:1 (supposedly that ratio makes most tq) throughout our dyno run but as I've said before all cars are different and all S4's I've dyno'd so far likes to run a bit richer than 12:5.1 We only made changes to primary since A/F was already flat. Again, we made sure EGT's and CF's were within our specs...car is actually safer to push now than before without tweaks. APR is weaksauce, no wonder I was getting smoked by E46's when I had their software, even the TAP chip I tested had more HP!!! You can see my sig for all tests i've done so far. Still trying to get my hands on Giac X and XR chip for more tests...If anyone in the area is willing to let me borrow their A Box ECU with X chip please email me. I'd rather do all of these tests on my car so we can eliminate "but it was done on a different car" factor. Please don't assume that these settings will do the same for you as all cars are different. I take no responsiblity should your engine blow up (even though theres no way really with these weaksauce settings =) Link to original post __________________ My FATS Tests Stock Software - Before and After Tweaks AMS - Before and After Tweaks AMS part 2 - Before and After Tweaks REVO & TAP- Before and after tweaks APR - Before and after tweaks Ign timing testing AIM: AudiS4guy

04-11-2005, 11:08 AM	#2
PSmalls::DoggieStyle Elder Member Account #: 69223 Join Date: Jan 2004 Posts: 30,285	Almost 6% of fuel added for 1.5 degree of timing?

04-11-2005, 11:11 AM	#3
Oo.et.oO Member Account #: 65580 Join Date: Nov 2003 Posts: 5,879	is it just me or does baseline look better than test? was baseline with added timing? __________________ For Sale: B5 A4/S4 avant boot/trunk rubber mat Gone but not forgotten: 2001 Brilliant Black S4 Avant 6spd. c'mon AoA, where is the B8 3.0 TDi?

04-11-2005, 11:15 AM	#4
AudiS4guy - NorCal Member Account #: 79060 Join Date: Aug 2004 Posts: 3,273	i just went back into the computer and picked the runs...i guess i should have made the base run defualt and the test run as -3 timing. Just look at the colors! __________________ My FATS Tests Stock Software - Before and After Tweaks AMS - Before and After Tweaks AMS part 2 - Before and After Tweaks REVO & TAP- Before and after tweaks APR - Before and after tweaks Ign timing testing AIM: AudiS4guy

04-11-2005, 11:17 AM	#5
Oo.et.oO Member Account #: 65580 Join Date: Nov 2003 Posts: 5,879	confused: thought you added timing to the APR runs to get mo powa? __________________ For Sale: B5 A4/S4 avant boot/trunk rubber mat Gone but not forgotten: 2001 Brilliant Black S4 Avant 6spd. c'mon AoA, where is the B8 3.0 TDi?

04-11-2005, 11:23 AM	#6
AudiS4guy - NorCal Member Account #: 79060 Join Date: Aug 2004 Posts: 3,273	ok, BASE run is with fuel tweaks and timing advance. I just mixed them up when selecting them for comparison and printout __________________ My FATS Tests Stock Software - Before and After Tweaks AMS - Before and After Tweaks AMS part 2 - Before and After Tweaks REVO & TAP- Before and after tweaks APR - Before and after tweaks Ign timing testing AIM: AudiS4guy

04-11-2005, 11:24 AM	#7
AudiS4guy - NorCal Member Account #: 79060 Join Date: Aug 2004 Posts: 3,273	Also, you can verify this by the time of the Runs... __________________ My FATS Tests Stock Software - Before and After Tweaks AMS - Before and After Tweaks AMS part 2 - Before and After Tweaks REVO & TAP- Before and after tweaks APR - Before and after tweaks Ign timing testing AIM: AudiS4guy

04-11-2005, 11:31 AM	#8
DarinS4Turbo AudiWorld Senior Member Account #: 16111 Join Date: Feb 2001 Posts: 2,174	so what was the resulting air/fuel ratio after fuel tweaks?

04-11-2005, 11:32 AM	#9
AudiS4guy - NorCal Member Account #: 79060 Join Date: Aug 2004 Posts: 3,273	we weren't concerned much with timing. Just fueling. We wanted to run richer than 12.5:1 We were aiming for 11.3:1 - 11.7:1 and 6% is what it took to get there. __________________ My FATS Tests Stock Software - Before and After Tweaks AMS - Before and After Tweaks AMS part 2 - Before and After Tweaks REVO & TAP- Before and after tweaks APR - Before and after tweaks Ign timing testing AIM: AudiS4guy

04-11-2005, 11:34 AM	#10
reefer_bob Member Account #: 45294 Join Date: Oct 2002 Posts: 14,337	Agian... great work! __________________ Reefer_Bob. AIM: reeferbob R.I.P. Matthew Ammon aka O.W. Kenobi

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