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03-23-2013, 08:09 AM | #1 |
Scooby Newbie
Member#: 171697
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Orland Park, IL
Vehicle:04 WRX FP Green |
2.0L vf48 283whp/297wtq
Event: Road pull
Location: N/A Ambient Temp: 38F Elevation: 675ft Weather: Sunny, 68% humidity Track and Conditions: Asphalt, slightly uphill starting in middle of the pull Tires: Nitto NT05 Car: '05 WRX Tuner: Me Dyno Info: Airboy Transmission: 5spd Gear: 3rd Peak HP at RPM: 283 @ 5450 Peak Torque at RPM: 297 @ 4410 Baseline hp/tq for a stock on same dyno: N/A Target Boost: 19psi, peaked 19.73psi Target AFR: 10.94, actual were on avg 11.4 Fuel: Shell 93oct (winter blend?) Engine/Power Modifications: VF48, STi TMIC, 565cc '11 WRX injectors, Walbro 255, TGV deletes, APS 65mm CAI, Invidia UP, Catless Helix 3" DP, A'PEXi N1 Race Catback, GM EBCS Driveline Modifications: Stock clutch Suspension Modifications: '04 Sti struts with JDM STi pink springs Other Modifications: Perrin crank pulley, Nitto NT05 245/40/18 on 18.8.5 Rota SVN, Spoiler delete Tune: 14 degrees peak torque, 22 degrees around 6.1k RPM (edit: correction, it was 20* in this pull) (sorry hosting for bunch of other pics of airboy settings and 3rd gear pulls went down) More on car here: http://forums.nasioc.com/forums/show....php?t=2475010 Log: https://docs.google.com/spreadsheet/...GRSZTZzY1lVNmc I ran out of road and stopped at 6.2k RPM. My AFRs used to be around 10.9~11.2 but recently since I cleaned my MAF and filter from oil/dirt it flows more. 11.5afrs will be too aggressive in the summer. I hit 4.6MAFv around 6k RPM, went above 3.0g/rev load, it's definitely making good power. Kyle.
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Last edited by nfm; 12-01-2016 at 06:48 PM. Reason: added log |
03-23-2013, 12:18 PM | #2 |
Scooby Specialist
Member#: 202804
Join Date: Feb 2009
Chapter/Region:
MWSOC
Location: Durham, NC
Vehicle:2002 PSM Sedan The 2.0L that could |
Ever tried comparing logs with Virtual dyno software?
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03-23-2013, 05:46 PM | #3 |
Scooby Newbie
Member#: 171697
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Orland Park, IL
Vehicle:04 WRX FP Green |
285/299 virtual dyno:
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03-23-2013, 06:17 PM | #4 |
Scooby Specialist
Member#: 268354
Join Date: Dec 2010
Chapter/Region:
NESIC
Location: Massachusetts
Vehicle:02 WRX 05 LGT Slow Automatics |
Is that the final tune? 22* around 6000 is higher than I usually would go. That and fueling isn't exactly where I'd like it. But nonetheless good job on getting the numbers!
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03-23-2013, 06:33 PM | #5 |
Scooby Newbie
Member#: 233960
Join Date: Jan 2010
Location: MN
Vehicle:2011 WRX HATCH WHITE |
Is that the true afr on that vd?
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03-23-2013, 06:34 PM | #6 |
Scooby Newbie
Member#: 171697
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Orland Park, IL
Vehicle:04 WRX FP Green |
Yeah you're right, seems like it's a bit too much timing. I will post/upload my ROM shortly. It looks like I did this pull with ECT temp of 140 and 2* advance was added in. Timing should have been around 12* peak and at most 19* toward redline after checking the map. But on the other hand, it ran 22* (correction: 20*) with 11.5afrs on winter blend? Not bad. I was wondering what kind of timing my setup can take.
Last edited by nfm; 03-23-2013 at 06:40 PM. |
03-23-2013, 06:34 PM | #7 |
Scooby Newbie
Member#: 171697
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Orland Park, IL
Vehicle:04 WRX FP Green |
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03-23-2013, 07:18 PM | #8 |
Scooby Newbie
Member#: 223839
Join Date: Sep 2009
Chapter/Region:
E. Canada
Location: Sudbury, Ontario
Vehicle:2004 WRX Java black |
Right on man. Car must feel very torquey on the street eh?
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03-24-2013, 11:36 PM | #9 |
Scooby Newbie
Member#: 171697
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Orland Park, IL
Vehicle:04 WRX FP Green |
You bet, feels pretty good. Spool is quick, feels like td04, and when comparing logs vf48 is neck and neck with td04 at least on my setup in this chilly weather when looking at RPM vs MAFv, except that it keeps going after 5.4k rpm.
Airboy suggested to have SAE off in VirtualDyno since weather/elevation information in Airboy's spreadsheet is used only for air density calculations to adjust for aero drag whereas VirtualDyno does something else. With SAE off I'm getting 298hp/313tq: |
03-25-2013, 09:33 AM | #10 |
Scooby Specialist
Member#: 202804
Join Date: Feb 2009
Chapter/Region:
MWSOC
Location: Durham, NC
Vehicle:2002 PSM Sedan The 2.0L that could |
I would give it some smoothing (3-5) to give you more of an accurate number.
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03-25-2013, 11:10 AM | #11 |
Scooby Guru
Member#: 50315
Join Date: Dec 2003
Chapter/Region:
Tri-State
Location: New York
Vehicle:0806 LGTspecB & Saab 9-2xAero5MT DGM & MBP |
Yea, definitely smooth it out. I don't know why people even bother tuning when they can just kick up the correction factor and smooth the **** out of a choppy curve.
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03-25-2013, 02:22 PM | #12 |
Scooby Specialist
Member#: 234407
Join Date: Jan 2010
Chapter/Region:
MAIC
Location: Smithfield, VA
Vehicle:04 Self-tooned STi |
All I know is if that if the true AFR I don't see this car lasting long specially if the timing is even close to moderate... It's choppy and lean. You could have a much safer tune just by letting the AFR stay stead around 11-11.5
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03-25-2013, 02:29 PM | #13 |
Scooby Specialist
Member#: 72829
Join Date: Oct 2004
Chapter/Region:
W. Canada
Location: Calgary, Canada
Vehicle:2006 WRX 2015 WRX |
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03-25-2013, 06:28 PM | #14 |
Scooby Specialist
Member#: 234407
Join Date: Jan 2010
Chapter/Region:
MAIC
Location: Smithfield, VA
Vehicle:04 Self-tooned STi |
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03-25-2013, 07:59 PM | #15 | |
Scooby Newbie
Member#: 233960
Join Date: Jan 2010
Location: MN
Vehicle:2011 WRX HATCH WHITE |
Quote:
It took me awhile to see it too. the boost numbers are on the right of the graph and the afr ratio is on the left. I was about to say something too but then noticed it. |
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