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Old 12-20-2010, 07:00 PM   #1
xluben
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10.9s @ 128mph

Default 2011 WRX Stock vs. Stage 1 vs. Stage 2

I finally was able to install my COBB downpipe and get my 2011 WRX retuned. Baseline, Stage 1 and Stage 2 information is included. Stage 1 tune was done with the SPT cat back already installed. Only change since then was adding the downpipe. Tuning was done on 16" steelies and winter tires (just like the baseline and Stage 1 tune).

RomRaider log was used to create the dyno plot using Virtual Dyno. Seems that no one liked the Dynojet numbers from my last thread (HERE), so I set CF=1, which makes the Virtual Dyno read similar to COBB's dyno (LINK). Upped the smoothing to 5 to get rid of some bumps in the plots (which lowers the readings slightly).

I am really happy with the tune. Nuke kept it conservative enough that I shouldn't have to worry about my car, but still made it much, much quicker than Stage 1. The mid range pull is great! Nice big torque numbers from 3k and up. Car feels so much stronger now. The COBB downpipe also makes it sound a bit meaner

Feel free to discuss!

Event: Stage 2 Road Tune
Location: MN
Ambient Temp: 20F
Elevation: 725ft
Weather: Cloudy
Road Conditions: Flat
Tires: General Altimax Artic 215/55R16




Car: 2011 WRX 5 Door
Tuner: Nuke
Dyno Info: Virtual Dyno - CF=1, Smoothing=5
Transmission: Stock 5 Speed
Gear: 3rd
Target Boost: 18.5psi
Target AFR: Unknown
Fuel: 93 Octane Unleaded
Engine/Power Modifications: SPT Cat Back Exhaust, COBB Downpipe
Driveline Modifications: None
Suspension Modifications: None
Other Modifications: 16" Steel Wheels
Baseline:
Peak HP at RPM: 239hp@6,000rpm
Peak Torque at RPM: 259lbft@3,200rpm
Stage 1:
Peak HP at RPM: 251hp@6,000rpm
Peak Torque at RPM: 294lbft@3,400rpm
Stage 2:
Peak HP at RPM: 275@5,600rpm
Peak Torque at RPM: 316lbft@3,400rpm

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Last edited by xluben; 01-24-2011 at 09:07 AM.
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Old 12-20-2010, 08:37 PM   #2
THE_SMURF
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nice. . . . thinking about just doing a stage 1 pro tune on my 2011 just for that extra oommph
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Old 12-20-2010, 08:42 PM   #3
MattPersman
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what happens if you run 18 or 20 psi on stage 1?

what is your timing like between stage 1 and 2.
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Old 12-20-2010, 09:14 PM   #4
Nuke209
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Quote:
Originally Posted by MattPersman View Post
what happens if you run 18 or 20 psi on stage 1?

what is your timing like between stage 1 and 2.
You can push the boost if you like. Just make sure it doesn't knock.
You'd get more tq and power for sure with more boost.

Timing is something like 10.5 - 19
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Old 12-21-2010, 04:42 AM   #5
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Nice post and car. So awesome that an exhaust and tune nets so much wheel torque. Makes me jealous of the 2.5
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Old 12-21-2010, 08:53 AM   #6
xluben
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Quote:
Originally Posted by THE_SMURF View Post
nice. . . . thinking about just doing a stage 1 pro tune on my 2011 just for that extra oommph
You won't regret it. The extra torque from Stage 1 gives you a nice bit of extra pull.

Quote:
Originally Posted by MattPersman View Post
what happens if you run 18 or 20 psi on stage 1?

what is your timing like between stage 1 and 2.
Quote:
Originally Posted by Nuke209 View Post
You can push the boost if you like. Just make sure it doesn't knock.
You'd get more tq and power for sure with more boost.

Timing is something like 10.5 - 19
Thanks Nuke.

Quote:
Originally Posted by hammyt View Post
Nice post and car. So awesome that an exhaust and tune nets so much wheel torque. Makes me jealous of the 2.5
Yeah, pretty simple mods and it's much quicker now. 4" of snow last night, so I can't even put the power down But AWD in the snow is still lots of fun
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Old 12-21-2010, 02:56 PM   #7
hammyt
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Boy howdy, I was out in my favorite lot doing some 2nd gear drifts last night. So entertaining when no one else is around. Passing SUV's on a regular basis is funny too.
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Old 12-22-2010, 03:28 PM   #8
xluben
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Quote:
Originally Posted by hammyt View Post
Boy howdy, I was out in my favorite lot doing some 2nd gear drifts last night. So entertaining when no one else is around. Passing SUV's on a regular basis is funny too.
Hmm...
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Old 12-22-2010, 03:32 PM   #9
STI 2 NV
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Some decent numbers. I definitely need to get mine to at least stage I...ASAP!
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Old 12-22-2010, 03:37 PM   #10
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really not a lot of difference is it.
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Old 12-22-2010, 03:51 PM   #11
xluben
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Quote:
Originally Posted by STI 2 NV View Post
Some decent numbers. I definitely need to get mine to at least stage I...ASAP!
Stage 1 is so easy! And a lot of fun too

Quote:
Originally Posted by vicious_fishes View Post
really not a lot of difference is it.
35hp and 55tq over stock seems like a pretty good difference to me.

Definitely feels a lot faster on the butt dyno!
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Old 12-22-2010, 04:02 PM   #12
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36whp/57wtrq increase from a catted downpipe + spt exhaust (not the best flowing exhaust) + conservative tune?

Doesn't really sound that bad at all; cai + tmic would be next on my list. The newer WRXs have a higher flowing stock downpipe than the 02-07 WRXs so they see a little less gain going to stage 2 than the previous generations.
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Old 12-22-2010, 04:09 PM   #13
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i believe its just a better tune and bigger turbo that give it that extra power

there is a thread on iwsti, GR exaust section that compare the down pipes from an 08 to a 2011
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Old 12-22-2010, 04:17 PM   #14
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Well I know the 09+ WRX downpipe is higher flowing than the 02-08 WRX downpipe. I'm not sure if/how the STi downpipe has changed over the years.
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Old 12-22-2010, 04:19 PM   #15
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lol 09+ 's bigger turbo definitely helps with the output.
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Old 12-22-2010, 04:24 PM   #16
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Quote:
Originally Posted by SWP n Gold View Post
Well I know the 09+ WRX downpipe is higher flowing than the 02-08 WRX downpipe. I'm not sure if/how the STi downpipe has changed over the years.
08+ is the same DP guy

the older 02-07 were different lengths and probably used a different cat, never looked to much into it.
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Old 12-22-2010, 04:46 PM   #17
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Quote:
Originally Posted by THE_SMURF View Post
08+ is the same DP guy

the older 02-07 were different lengths and probably used a different cat, never looked to much into it.
2009 Subaru Impreza WRX review

The 09+ WRX has a revised/higher flowing catalytic converter(s) than the 08 WRX, guy.
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Old 12-22-2010, 06:04 PM   #18
xluben
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Quote:
Originally Posted by SWP n Gold View Post
36whp/57wtrq increase from a catted downpipe + spt exhaust (not the best flowing exhaust) + conservative tune?

Doesn't really sound that bad at all; cai + tmic would be next on my list. The newer WRXs have a higher flowing stock downpipe than the 02-07 WRXs so they see a little less gain going to stage 2 than the previous generations.
Yeah, the numbers look just about right for the parts and the tune. Next up is TMIC, CAI, BPV, Injectors, Fuel Pump and E85 tune. Hopefully over the summer.

Quote:
Originally Posted by Nuke209 View Post
lol 09+ 's bigger turbo definitely helps with the output.
Yeah, but what sets mine apart is the great custom tune!

Quote:
Originally Posted by THE_SMURF View Post
08+ is the same DP guy

the older 02-07 were different lengths and probably used a different cat, never looked to much into it.
Quote:
Originally Posted by SWP n Gold View Post
Well I know the 09+ WRX downpipe is higher flowing than the 02-08 WRX downpipe. I'm not sure if/how the STi downpipe has changed over the years.
Quote:
Originally Posted by SWP n Gold View Post
2009 Subaru Impreza WRX review

The 09+ WRX has a revised/higher flowing catalytic converter(s) than the 08 WRX, guy.
Interesting link. Anyone have an 08, 09, or 10 stock downpipe sitting around? I have one from a 2011 that I would be happy to take photos of if someone wants to compare.

I also noticed in that C&D review that the 09 boost was 13.3psi. According to cars101.com that is the same as the 2010. But the 2011 is 14.2! That's definitely a good case for a new tune for the 2011 model. Interesting that the power rating stayed the same.

Not that it matters. Everyone just goes Stage 1 right away anyways
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Old 12-22-2010, 06:15 PM   #19
4drcivicmaster
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that thing looks sharp! even with the steelies on.
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Old 12-22-2010, 06:16 PM   #20
samdust
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my 2010 with exhaust only pushes 14 psi. and i almost got enough to go stage 2, im excited. what steelies are those. i need to pick up a set but dont know where to look
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Old 12-22-2010, 06:22 PM   #21
xluben
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Quote:
Originally Posted by 4drcivicmaster View Post
that thing looks sharp! even with the steelies on.
Thanks. I like the look too, but I can't wait until spring when I can put the summer tires back on!

Quote:
Originally Posted by samdust View Post
my 2010 with exhaust only pushes 14 psi. and i almost got enough to go stage 2, im excited. what steelies are those. i need to pick up a set but dont know where to look
What do you mean "almost got enough to go stage 2"? Stage 2 is really just a downpipe, so even a stock car is almost stage 2, lol.

If you have a down pipe you should have a tune. But if not, and you're on the stock tune you should be right around that for boost pressure.

Here's some info on buying the wheels:

Quote:
TireRack.com Luke was extremely helpful during the ordering process.

Unless they have updated the site to show 16" wheels being compatible with the 2011, you will have to follow this process to order them (or give them a call).

Quote:
Originally Posted by xluben View Post
I called Luke @ TireRack and he confirmed that 16" steelies will fit on the 2011 WRX.

The proper size tire is 215/55R16.

In order to get these things into your cart:
  • Click this link: http://forums.nasioc.com/forums/showthread.php?t=508175
  • Select your car as the 2010 Subaru WRX
  • Choose the 16" Winter package (205/55R16 size)
  • Add 16" wheels and any type of 205/55R16 tires to your cart
  • Choose to shop for tires by size
  • Choose size 215/55R16
  • Chose whatever tires you want and add them to the cart
  • Remove the 205/55R16 tires from you cart

Then you should be left with 4 tires (215/55R16) and 4 wheels (16") in your cart. Place your order!
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Old 12-24-2010, 07:49 PM   #22
xluben
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I had some free time today and did a few more 3rd gear pulls. Torque at 3k was nearly identical to the pulls during the tune, but today torque was peaking a little higher (but at a similar RPM).

The HP also held on a lot better on the high end (climbing all the way to redline). The higher RPM HP peak makes more sense. Not sure why the other pull started dropping so soon.



Baseline:
Peak HP at RPM: 239hp@6,000rpm
Peak Torque at RPM: 259lbft@3,200rpm
Stage 1:
Peak HP at RPM: 251hp@6,000rpm
Peak Torque at RPM: 294lbft@3,400rpm
Stage 2 (during tune):
Peak HP at RPM: 275hp@5,600rpm
Peak Torque at RPM: 316lbft@3,400rpm
Stage 2 (12/24 pull):
Peak HP at RPM: 298hp@6,100rpm
Peak Torque at RPM: 342lbft@3,500rpm

Last edited by xluben; 12-24-2010 at 07:56 PM.
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Old 12-24-2010, 10:00 PM   #23
xluben
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Talked to my tuner and he reminded me that we did flash it one last time (after the log that I used to post the first plot). He tweaked the top end a little and it looks like it helped a lot!
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Old 12-25-2010, 01:51 PM   #24
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I wonder what the gain would have been with just the boost increase and no new parts. You're running quite a bit more boost. What would the stock exhaust pull look like with that same boost? How about just a down pipe and the same boost?

Car sounds great by the way and I'm not knocking anything.
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Old 12-25-2010, 03:02 PM   #25
Nuke209
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Quote:
Originally Posted by robertrinaustin View Post
I wonder what the gain would have been with just the boost increase and no new parts. You're running quite a bit more boost. What would the stock exhaust pull look like with that same boost? How about just a down pipe and the same boost?

Car sounds great by the way and I'm not knocking anything.
When tuning, he did have a boost leak.
He did fix it afterward.
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