Stage 2 Dyno - ClubWRX Forum - Subaru Impreza WRX and STi Community and Forums

Pavia · 04-06-2007, 08:27 PM

Just went to Stage 2 and had it dyno'd:

2007 WRX with AP Stage 2, SPT Package, and Cobb DP w/ hi-flow cat.

Max Power: 221.19 hp (at wheels)
Max Torque: 278.29 ft-lb (at wheels)

Running conditions: 62.32deg F, 29.15 in-Hg, Humidity: 7%
Equipment and software: Dynojet Winpep 7

The torque hits a high in the 2700 to 3700rpm range, while the hp hits between 4500 and 5500rpm.

The numbers fit very well with what Cobb has tested and listed for dyno numbers on STage 2, so A+ to them for a job well done.

With the SPT Intake, the Air/Fuel ratio was a little rich, but was not a major impact on performance. In other words, it did not help or hurt. With a little protuning on the Stage 2 93 map, this could be corrected, but the impact was really insignificant.

All in all, Cobb has hit a homerun for 2007 and the wait was worth it.

Stage 2 puts this little WRX into a whole new ballpark.

I also cannot recommend enough the value of going to Stage 1, as well. Despite the limited increase in numbers, I feel it definitely improves the performance of the vehicle over stock.

Stage 2 is awesome, though!

**Integra96** · 04-06-2007, 08:33 PM

That's got to be a fast car. Nice numbers.

tayhadar1 · 04-06-2007, 08:54 PM

cool I can't wait

06ltd · 04-06-2007, 10:06 PM

Those are great numbers, though I'm surprised your A/F was on the rich side with the SPT intake. Do you think that is from the map, the ecu, or the fuel? Also, do you know what your intake temp was compared to the ambient temp? How about post IC temps (if you have a sensor)? Sorry for all the questions but I have a similar setup and am curious.

rexwag · 04-06-2007, 10:08 PM

Nice #'s - Congrats!

rr1911 · 04-08-2007, 11:26 PM

nice #'s

Peckz07reX · 07-16-2008, 02:21 PM

That is awesome!

I have an 07 as well with pretty much the same things, except for the cobb DP and accessport which I should have within the next couple of weeks.

Now I'm more excited!

Pavia · 07-16-2008, 03:55 PM

Quote:

Originally Posted by Peckz07reX

That is awesome!

I have an 07 as well with pretty much the same things, except for the cobb DP and accessport which I should have within the next couple of weeks.

Now I'm more excited!

You will enjoy it, but be warned... you will be bitten by the mod bug and dreams of 300+whp will over take you

Peckz07reX · 07-17-2008, 12:08 PM

Quote:

Originally Posted by Pavia

You will enjoy it, but be warned... you will be bitten by the mod bug and dreams of 300+whp will over take you

Haha, I'm scared, but I can't wait to get addicted to power

tnot · 08-22-2008, 01:16 PM

[quote=Pavia;1883350]Just went to Stage 2 and had it dyno'd:

2007 WRX with AP Stage 2, SPT Package, and Cobb DP w/ hi-flow cat.

Max Power: 221.19 hp (at wheels)
Max Torque: 278.29 ft-lb (at wheels)

Cobb states power claims for the '07 WRX are:

Stage 2 91 oct Stage 2 using 91 octane fuel. Requires turboback exhaust. 280HP (+22%)/ 335lb-ft (+43%)

The HP numbers you are posting are more in line with their Stage 1:

Stage 1 91 oct Stage 1 for Stock Vehicles. 91 octane fuel. 255HP (+11%)/ 300lb-ft (+28%)
Can you help me understand this? I'm consider one of the two for my '07 WRX wagon, as well. Thanks.

DUB · 08-22-2008, 01:24 PM

The numbers from the COBB map notes are at the crank, OP's are at the wheels.

Welcome to the club.

tnot · 08-22-2008, 01:35 PM

Quote:

Originally Posted by DUB

The numbers from the COBB map notes are at the crank, OP's are at the wheels.

Welcome to the club.

Thanks--I'm aware of how/where the numbers are taken, but it just seems like that's some serious powertrain loss if that's the case. 60+ hp is big.

DUB · 08-22-2008, 01:43 PM

I was under the impression that an ~50hp loss from crank to wheels was normal for awd cars. I don't remember where I heard that, but I could definitely be wrong.

tnot · 08-22-2008, 01:44 PM

Was also curuious about the SPT intake. I have the full system on my car as well--was it more of a sound issue for you, or did you buy it as a performance part? I personally love the noise irrespective of whatever small power gains it might offer. Throttle response seems crisper, too.

tnot · 08-22-2008, 01:48 PM

Quote:

Originally Posted by DUB

I was under the impression that an ~50hp loss from crank to wheels was normal for awd cars. I don't remember where I heard that, but I could definitely be wrong.

Right on--if it is, please excuse me. This is my first AWD car (up from a modified 1995 M3), so I'm just a little surprised by a 30% +/- powertrain loss...but I guess it actually makes sense if you consider the variables.

04-06-2007, 08:27 PM	#1 (permalink)
Pavia Registered User Join Date: Dec 2006 Location: Philly/DE area Posts: 827	Stage 2 Dyno Just went to Stage 2 and had it dyno'd: 2007 WRX with AP Stage 2, SPT Package, and Cobb DP w/ hi-flow cat. Max Power: 221.19 hp (at wheels) Max Torque: 278.29 ft-lb (at wheels) Running conditions: 62.32deg F, 29.15 in-Hg, Humidity: 7% Equipment and software: Dynojet Winpep 7 The torque hits a high in the 2700 to 3700rpm range, while the hp hits between 4500 and 5500rpm. The numbers fit very well with what Cobb has tested and listed for dyno numbers on STage 2, so A+ to them for a job well done. With the SPT Intake, the Air/Fuel ratio was a little rich, but was not a major impact on performance. In other words, it did not help or hurt. With a little protuning on the Stage 2 93 map, this could be corrected, but the impact was really insignificant. All in all, Cobb has hit a homerun for 2007 and the wait was worth it. Stage 2 puts this little WRX into a whole new ballpark. I also cannot recommend enough the value of going to Stage 1, as well. Despite the limited increase in numbers, I feel it definitely improves the performance of the vehicle over stock. Stage 2 is awesome, though! __________________ 06 GTO M6 Quicksilver 455 Bobcat 07 WRX TR M5 Garnet Red Pearl - Stage: I've given up on "stages". I spent way too much cash and my car's running fine (dyno'd 315whp/334wtq). I'm stage "hiding my receipts from the wife..."

04-06-2007, 08:33 PM	#2 (permalink)
Integra96 Moderator Join Date: Apr 2002 Location: Utah Posts: 17,700	That's got to be a fast car. Nice numbers. __________________ What's your favorite banned?

04-06-2007, 08:54 PM	#3 (permalink)
tayhadar1 Registered User Join Date: Apr 2006 Location: Spokane, Pullman WA Posts: 1,509	cool I can't wait __________________ 2004 WRX Sti Cobb Stage 2 GO COUGS!!!

04-06-2007, 10:08 PM	#5 (permalink)
rexwag Registered User Join Date: Jan 2007 Location: State of Denial Posts: 58	Nice #'s - Congrats! __________________ WRX: It's hot between the lags... "This tossed salad tastes like sh\|t!"

04-08-2007, 11:26 PM	#6 (permalink)
rr1911 Registered User Join Date: Nov 2005 Location: Central Florida Posts: 369	nice #'s __________________ Army Ranger For Life ! Thin Blue Line Military Militia # 1911/ Blobeye Syndicate # 1911/ Modifier's Anonymous # 1911/ Hawk-Eye Alliance # 1911 All We'll Drive DIFFERENT STROKES EVEN MY DENTIST TOLD ME FLOSS 7 DAYS A WEEK POST WH0RE KING

04-06-2007, 10:06 PM	#4 (permalink)
06ltd Registered User Join Date: Feb 2007 Location: around . . . Posts: 251	Those are great numbers, though I'm surprised your A/F was on the rich side with the SPT intake. Do you think that is from the map, the ecu, or the fuel? Also, do you know what your intake temp was compared to the ambient temp? How about post IC temps (if you have a sensor)? Sorry for all the questions but I have a similar setup and am curious.

07-16-2008, 02:21 PM	#7 (permalink)
Peckz07reX Registered User Join Date: Jun 2008 Location: Westchester, NY Posts: 25	That is awesome! I have an 07 as well with pretty much the same things, except for the cobb DP and accessport which I should have within the next couple of weeks. Now I'm more excited!

08-22-2008, 01:16 PM	#10 (permalink)
tnot Registered User Join Date: Aug 2008 Posts: 39	[quote=Pavia;1883350]Just went to Stage 2 and had it dyno'd: 2007 WRX with AP Stage 2, SPT Package, and Cobb DP w/ hi-flow cat. Max Power: 221.19 hp (at wheels) Max Torque: 278.29 ft-lb (at wheels) Cobb states power claims for the '07 WRX are: Stage 2 91 oct Stage 2 using 91 octane fuel. Requires turboback exhaust. 280HP (+22%)/ 335lb-ft (+43%) The HP numbers you are posting are more in line with their Stage 1: Stage 1 91 oct Stage 1 for Stock Vehicles. 91 octane fuel. 255HP (+11%)/ 300lb-ft (+28%) Can you help me understand this? I'm consider one of the two for my '07 WRX wagon, as well. Thanks.

08-22-2008, 01:24 PM	#11 (permalink)
DUB Registered User Join Date: Jul 2007 Location: SLT, CA Posts: 2,843	The numbers from the COBB map notes are at the crank, OP's are at the wheels. Welcome to the club. __________________ "Blondes not bombs....brunettes not fighter jets" Stg 2 Wagon Bugeye Mafia #152

08-22-2008, 01:43 PM	#13 (permalink)
DUB Registered User Join Date: Jul 2007 Location: SLT, CA Posts: 2,843	I was under the impression that an ~50hp loss from crank to wheels was normal for awd cars. I don't remember where I heard that, but I could definitely be wrong. __________________ "Blondes not bombs....brunettes not fighter jets" Stg 2 Wagon Bugeye Mafia #152

08-22-2008, 01:44 PM	#14 (permalink)
tnot Registered User Join Date: Aug 2008 Posts: 39	Was also curuious about the SPT intake. I have the full system on my car as well--was it more of a sound issue for you, or did you buy it as a performance part? I personally love the noise irrespective of whatever small power gains it might offer. Throttle response seems crisper, too.

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