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Old 10-14-2010, 02:49 PM   #1
MotorrBoatrr
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Default Stock 2011 WRX Dyno numbers

Car is 100% bone stock. 1700 miles just changed oil.
Had the car at Cobb Plano today for a baseline and this is what i got.

Whp-251
Wtq-255


I cant say enough about the guys at Cobb. Very easy to deal with and super friendly. Would do anything they can to show great customer service and accel at that.

Thanks
Josh
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Last edited by MotorrBoatrr; 10-15-2010 at 08:08 PM.
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Old 10-14-2010, 02:53 PM   #2
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Have a camera?
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Old 10-14-2010, 02:59 PM   #3
Construct
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Torque looks right, but you're making more horsepower than many of Cobb's Stage 1 tunes from their shop 2011 WRX:

http://surgeline.cobbtuning.com/dyno...rgb1=000000255
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Old 10-14-2010, 03:03 PM   #4
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Yea, I noticed the HP was very high too. However, I'm sure Cobb tested only one car. We've seen HP/TQ vary between cars but that seems pretty high of a diff.
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Old 10-14-2010, 03:05 PM   #5
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Not sure what to say guys, I am trying to get this scanned. I tried to just take a pic of it but keeps coming out fuzzy.
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Old 10-14-2010, 03:33 PM   #6
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Wow, my 2011 STi only made 248hp 266TQ 100% stock on that same dyno...
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Old 10-14-2010, 05:53 PM   #7
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factory freak
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Old 10-14-2010, 06:26 PM   #8
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Construct: The link you posted is for graphs from Cobb Surgeline and this car was run at Cobb Plano. Different facility, different dyno, different fuel.

This car may also be on the high end for a stock car as well, but without running more cars on the same dyno it's hard to say.
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Old 10-15-2010, 11:15 AM   #9
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Quote:
Originally Posted by cdoliver View Post
Wow, my 2011 STi only made 248hp 266TQ 100% stock on that same dyno...
Historically the VF52 has always made more HP than the VF48.
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Old 10-15-2010, 08:08 PM   #10
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graph added
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Old 10-15-2010, 08:33 PM   #11
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That's pretty impressive for stock wrx, Hp-wise it pulls up to 6.5k rpm and torque is pretty flat from 3.25k rpm to 5k rpm.
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Old 10-15-2010, 09:05 PM   #12
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i swear i saw a dyno on cobb's website that read 225whp baseline on a 2011 wrx.

http://accessecu.com/dyno/index.php?...rgb3=000153000

regardless, you have some nice baseline numbers
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Old 10-15-2010, 09:10 PM   #13
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Quote:
Originally Posted by najeezy View Post
i swear i saw a dyno on cobb's website that read 225whp baseline on a 2011 wrx.

http://accessecu.com/dyno/index.php?...rgb3=000153000

regardless, you have some nice baseline numbers
Yea that's another members car. Dynos are very weather dependent.
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Old 10-15-2010, 09:51 PM   #14
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I'm just happy to see some great numbers. Maybe Suby didn't pull back the tune which makes me very compared to the first set of results. Hopefully more runs will help fill in the blanks and show us what we really have.
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Old 10-15-2010, 09:56 PM   #15
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Ok so now that we have two from the same dyno in Texas I think we can agree, allowing for a +/- range, that the 2011 has the same tune as 2010.
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Old 10-16-2010, 12:19 AM   #16
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Quote:
Originally Posted by Innovative Tuning View Post
Construct: The link you posted is for graphs from Cobb Surgeline and this car was run at Cobb Plano. Different facility, different dyno, different fuel.

This car may also be on the high end for a stock car as well, but without running more cars on the same dyno it's hard to say.
You can access the DDBO through any of the websites (Plano, Surgeline, Austin) and get numbers from any of the three facilities. The link he posted is to a stock 2011 WRX on COBB Tuning Austin's dyno.
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Old 10-16-2010, 12:29 AM   #17
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SAE corrected numbers? What was the DA?

Comparing numbers on different dyno's with different settings and the DA being variable is a moot point. They can't compare. Congrats on getting high numbers, but no one else should feel disappointed if they have different results.
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Old 10-16-2010, 03:56 PM   #18
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Quote:
Originally Posted by scooby24 View Post
SAE corrected numbers? What was the DA?

Comparing numbers on different dyno's with different settings and the DA being variable is a moot point. They can't compare. Congrats on getting high numbers, but no one else should feel disappointed if they have different results.
The dyno runs were both at the same place, just different days.
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Old 10-16-2010, 04:23 PM   #19
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Quote:
Originally Posted by Snow Drift View Post
The dyno runs were both at the same place, just different days.
And that's a significant difference.

Looking up the historical weather data on those two dates in Addison, TX (5/16/10 and 10/14/10), we can calculate the DA of those two days.

Just going off the peak temps for the days, the DA on 5/16 was 2711 ft. On 10/14 it was 1445 ft. Going even further, on 5/16 the run happened after 1:00 pm. On 10/14 it happened before 11:00 am...so the DA gap is even larger than that.

http://www.wunderground.com/history/...q_statename=NA

So again, if it wasn't SAE corrected, DA was not accounted for and you cannot compare those numbers to each other, unless you manually perform the calculation yourself.

Without doing the calculation, you've got a 1300 ft advantage on the run on 10/14. That's a significant hp improvement and your numbers are artificially inflated compared to the 2010's

Last edited by scooby24; 10-16-2010 at 04:35 PM.
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Old 10-16-2010, 06:12 PM   #20
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Hey OP, what was your break in method?
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Old 10-16-2010, 06:32 PM   #21
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Quote:
Originally Posted by arghx7 View Post
factory freak
For comparison's sake....

My 09 wasy dyno'd last week, also stock except for the 2.5" SPT catback put down 251whp/262wtq on a dynojet at MachV - on a dyno that they owner (Dan) said that his 08 STi stock made just slightly more power (I don't have the graphs for his, obviously). Those numbers ARE SAE corrected and were my best runs. My averages were 244whp/259tq.

http://forums.nasioc.com/forums/show....php?t=2069474

OP, those numbers seem pretty close to alot of dynos I've seen on the 09+ wrx's.

DId you get A/F? That's where the 09+ starts looking very, very ugly.

Last edited by irish44j; 10-16-2010 at 06:37 PM.
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Old 10-16-2010, 06:34 PM   #22
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btw, what kind of dyno was it on?
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Old 10-16-2010, 07:05 PM   #23
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Irish, MachV shouldn't be too much above sea level though. I can't imagine more than 500ft above.

Actually, looking up on the geographic service it's only ~289ft above sea level. Big difference; our cars act very different at higher elevations as was already brought up.
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Old 10-16-2010, 07:39 PM   #24
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Quote:
Originally Posted by OrbitalEllipses View Post
Irish, MachV shouldn't be too much above sea level though. I can't imagine more than 500ft above.

Actually, looking up on the geographic service it's only ~289ft above sea level. Big difference; our cars act very different at higher elevations as was already brought up.
absolutely - but my numbers were also slightly higher than his in terms of "best run" and I was at 93 degrees that day and was having some heatsoak issues it seemed on the rest of the runs. IDK if that compensates much or at all.

Doesn't SAE correction compensate for elevation, or no? (dumb question, but I"m not much of a dyno/power guy....more into suspension/brakes).
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Old 10-16-2010, 09:29 PM   #25
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SAE correction basically changes the data to a standard set of weather/air density related values, not for elevation IIRC. Though, you can change elevation in the dyno itself. Never had a dyno run, not likely ever going to. My local OS tuner does road tunes
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