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Old 08-10-2012, 02:14 PM   #726
Pickler
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Member#: 301247
Join Date: Nov 2011
Location: Toronto
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09 Impreza 2.5i MT
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this has got to be the greatest dyno forum i have seen for a subaru. i just finished going through all 29 pages. i have a question for the NA owners or anyone familiar with the engine. im trying to find my peak torque and peak horsepower engine speeds. i have seen many NA dyno graphs and each suggest a different RPM.

for example this two from 06-07 2.5i suggest different RPMs?:




from an 08 impreza and 09 legacy also are conflicting:



can anyone explain? thanks.
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Old 08-10-2012, 02:28 PM   #727
tora
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Join Date: Apr 2001
Chapter/Region: VIC
Location: Vancouver
Vehicle:
09 Forester XT
+ NA Miata

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They have two different runs, like a stock run and tuned run or before and after.
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Old 08-10-2012, 02:50 PM   #728
Scott_2.5TS
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Chapter/Region: VIC
Location: Victoria, B.C.
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2002 WRX
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Those are 4 different dyno plots you're comparing and they all read different. If you're just looking for peak hp and torque at what rpm best just google the specs of your car; it will tell you where you make the most power and torque.
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Old 08-10-2012, 03:19 PM   #729
Pickler
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Quote:
Originally Posted by Scott_2.5TS View Post
Those are 4 different dyno plots you're comparing and they all read different. If you're just looking for peak hp and torque at what rpm best just google the specs of your car; it will tell you where you make the most power and torque.
well subaru claims peak horsepower at 6000 and peak torque at 4400. however on the dyno the car peaks at 4600 in torque and 5700rpm for horsepower. power nosedives at 6000rpm. this is why im confused.
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Old 08-10-2012, 07:23 PM   #730
tora
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+ NA Miata

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So many variables, and these are rolling dyno's probably whereas Subaru would use engine dyno.
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Old 11-01-2012, 03:24 PM   #731
Karmalina
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Member#: 308597
Join Date: Jan 2012
Chapter/Region: VIC
Location: Vancouver, BC
Vehicle:
2007 WRX Limited
Urban Gray Metallic

Default Liz's 07 WRX score @ Cobb Surgeline

Nothing crazy since the tune is on the conservative side, but I'm a very happy owner and the difference is night and day

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Old 01-13-2014, 12:13 AM   #732
CFK
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Join Date: Oct 2010
Chapter/Region: VIC
Location: Vancouver, B.C.
Vehicle:
92 Legacy Turbo SS
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92 Legacy SS

Modifications:

Engine

- EJ22T (240 000 Kms)
- RobTune ECU
- TD05-16G (Used)
- JDM Greytop 440cc's (Cleaned & Flowed)
- Delta 220 Cams (Torque)
- MSD Coilpack
- Aurora 8mm Wires
- Ceramic Coated Exhaust
- 07 WRX TMIC W/ Disected Perrin Y-Pipe
- De-Snorkeled, K&N, Turbo Silencer Delete
- Winton Motors BOV Adapter
- 2 Catch Cans
- 3" TBE. Megan DP, Custom No-Cat Mid & Sheep Dog Muffler
- Hallman Pro MBC
- Innovate LC-1 WB Controller
- Walbro 255 Fuel Pump
- Forge 007 Diverter Valve







Very happy with that considering there all used stock components, minus the RobTune of coarse

AWD DynaPack located at Blitzkrieg Autowerks in Vancouver.
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Old 05-26-2014, 10:42 PM   #733
swifter
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2006 STI
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Does anyone who's had they're car dyno'd or had a pro tune know how accurate the Cobb dyno on the AP is?
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Old 05-27-2014, 03:10 AM   #734
420WRX
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Quote:
Originally Posted by swifter View Post
Does anyone who's had they're car dyno'd or had a pro tune know how accurate the Cobb dyno on the AP is?
My software dyno seemed accurate between what I saw for stock WRX before my swap then the gains I got on the awd dyno matched almost exactly with the software runs post swap too.

How accurate it is really depends on knowing the right weight. I wasted time driving around for a bit till I got the gas at exactly 25% and then I made my pretty passenger stand on the side of the strip risking insult about her weight.. All just to keep things the same and even then I know there was a bit of a weight change with the motor swap.
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