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Old 11-11-2011, 12:14 AM   #1
EricInHoodRiver
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2011 WRX Hatch
Cobb Stage 2 Protune

Default Super pleased with Cobb stg 1 91 Octane 2011 wrx--why so smooth?

I flashed stage 1 91 Octane in my new 2011 wrx hatch about 5 days ago and after about 75 miles it just settled in. I have yet to take the car above 4K rpm as I am still not at 1000 mile break-in, Smoooooooooooooth, with an earlier onset of power. I am very, very happy with my investment in the AP. Out of curiosity I was wondering if folks with engine/tune knowhow can tell me what about the stage 1 tune does this? If I am reading the generic Cobb stage map correctly the thing that stands out most to me is the smoother boost curve. The stock peaks earlier at 15.5 PSI, or so, while the 2011 WRX 91 Stage 1 peaks a little later, a little lower at 15 psi, but stays at 15 much longer with a gradual taper down. Is this the smooth power that I feel?

Thanks,
Eric
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Old 11-11-2011, 08:52 AM   #2
Cobb Tuning
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Quote:
Originally Posted by EricInHoodRiver View Post
I flashed stage 1 91 Octane in my new 2011 wrx hatch about 5 days ago and after about 75 miles it just settled in. I have yet to take the car above 4K rpm as I am still not at 1000 mile break-in, Smoooooooooooooth, with an earlier onset of power. I am very, very happy with my investment in the AP. Out of curiosity I was wondering if folks with engine/tune knowhow can tell me what about the stage 1 tune does this? If I am reading the generic Cobb stage map correctly the thing that stands out most to me is the smoother boost curve. The stock peaks earlier at 15.5 PSI, or so, while the 2011 WRX 91 Stage 1 peaks a little later, a little lower at 15 psi, but stays at 15 much longer with a gradual taper down. Is this the smooth power that I feel?

Thanks,
Eric
One of the big things that improves driveability is eliminating the severe closed loop to open loop fueling delay that is part of the factory tune. Also changes to boost, ign. timing, fueling, cam. timing, and throttle mapping, all contribute to a smoother and more powerful car.

Bill
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Old 11-11-2011, 02:34 PM   #3
Rabidsquirel
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Join Date: Nov 2011
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Location: AZ
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2011 WRX
Satin White Pearl

Talking so smooth

Keith Stone your so smooth.
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Old 12-15-2011, 04:57 PM   #4
dcorn
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2012 WRX hatch
Ice Silver

Default

Just wanted to throw my question in on top of this one.

I just bought a new 2012 WRX. While I am still getting used to the way it drives, it seems that it could use some tweaking to improve the low end in lower gears and other things. I don't plan on any other engine mods (no intake/exhaust/etc) and I'm not looking for top end power, I just want the car to be smooth on my daily commute and where ever else I drove. I'm coming from a chipped 335i, so I guess I'm looking for something similar to that powerband.

Will I get closer to that with an AP? Basically I'm just used to cars with more overall power and torque which makes daily driving much smoother.
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Old 12-15-2011, 05:43 PM   #5
Beeker
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SWP

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DCorn if you get the accessport and do a full Turbo back exhaust you'll be more than pleased, the power should be a bit more than the 335i and the delivery will be smooth as well, if you just go with the accessport it will be smooth and you'll gain probably another 15HP and TQ just from the tuning,

but IMO a full turbo back exhaust is where it is at on these cars
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Old 12-16-2011, 08:25 AM   #6
dcorn
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Not really planning on exhaust mods anytime soon, don't need the extra noise and I'm not a huge fan of the boxer rumble anyway. I know exhaust always helps turbo cars, but don't want to spend that kind of money anytime soon.

Just looking for something to smooth out power delivery, but not if it requires me getting a bunch of other mods to experience the gain. Not looking for peak power either, but usable power on the highway.

And I think the BMW was making around 350whp, the WRX doesn't feel anywhere close to as fast as that, or even when it was stock.
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Old 12-16-2011, 08:58 PM   #7
WRX_20II
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Default

Quote:
Originally Posted by dcorn View Post
Just wanted to throw my question in on top of this one.

I just bought a new 2012 WRX. While I am still getting used to the way it drives, it seems that it could use some tweaking to improve the low end in lower gears and other things. I don't plan on any other engine mods (no intake/exhaust/etc) and I'm not looking for top end power, I just want the car to be smooth on my daily commute and where ever else I drove. I'm coming from a chipped 335i, so I guess I'm looking for something similar to that powerband.

Will I get closer to that with an AP? Basically I'm just used to cars with more overall power and torque which makes daily driving much smoother.
If you have access to 93 octane do the stage 1 93 octane map. I just got the AP and started using this map yesterday... absolutely amazing difference from stock. It creates a smooth power band like you are looking for and a very noticeable increase in pull. Trust me, best bang for buck mod I have ever seen. Needless to say, I am very impressed with Cobb's work thus far =) And they verify your logs to ensure all is well so the support is there too.
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Old 12-19-2011, 08:11 AM   #8
dcorn
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Good to hear. Yes, no problem getting 93 octane on the east coast.
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Old 12-22-2011, 03:14 PM   #9
I8ls1
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2005 wrx
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Quote:
Originally Posted by dcorn View Post
Not really planning on exhaust mods anytime soon, don't need the extra noise and I'm not a huge fan of the boxer rumble anyway. I know exhaust always helps turbo cars, but don't want to spend that kind of money anytime soon.

Just looking for something to smooth out power delivery, but not if it requires me getting a bunch of other mods to experience the gain. Not looking for peak power either, but usable power on the highway.

And I think the BMW was making around 350whp, the WRX doesn't feel anywhere close to as fast as that, or even when it was stock.
Boxer rumble FTW!!
And your b'mer with a chip was making closer to 300-315 to the wheels. If u had intake/ full exhaust you would be closer to 350. Also your inline-6 with little turbos made mountains of low end torque and did it about 500 rmp sooner than your wrx. People love how smooth cobb ap stage 1 makes everything so id start there
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