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Old 01-03-2011, 10:53 PM   #1
Innovative Tuning
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Default 2011 Subaru STI stage 2 plus intake. Before/After intake test.

Dyno: Innovative Tuning's Mustang AWD 500 SE (not inflated)
Tuner: Mike McGinnis at Innovative Tuning
Wheel HP: 281
Wheel TQ: 302
Ambient Temp: 40s
Elevation: ~700
Highest baseline wheel HP when stock: 217
Highest baseline wheel TQ when stock: 226

Car Info
Year: 2011
Engine Management: Cobb AccessTUNER Pro
Turbo:
stock
Intercooler: stock
Meth Kit: stock
Injectors: DW 850cc
Intake/Inlet: Cosworth air intake kit
Headers: stock
Uppipe: stock
Downpipe: Invidia catted
CBE: Borla
Other Power Mods: walbro pump


In this thread we baselined the car and performed some initial mods and tuning:
http://forums.nasioc.com/forums/show....php?t=2099162


Today we added injectors, a fuel pump, and the Cosworth air intake kit. Happily the intake did exactly what we hoped it would, which was to increase horsepower in the mid range and especially on the top end. The peak WHP only went up 19, but as you can see in the following graph, the gain near redline was massive for such an inexpensive modification. I put boost on the graphs so you can see that the change isn't from simply cranking the boost up.

The fuel mods got us back down to a safe maximum injector duty cycle, with room to grow for the future. I'm hitting at max of about 68-70% duty cycle now.

Sport sharp pulls before/after today's mods:




As usual I set sport sharp and sport up to do different things. Sport is a bit more conservative overall, less twitchy, and has a flatter torque curve. Here's the two settings after today's mods and retuning:




And here's stock vs. today's final tune to show the overall progress:




In terms of driving impressions...I'll leave that up to the car owner once he's had a chance to test out the changes.
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Last edited by Innovative Tuning; 01-04-2011 at 11:44 AM.
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Old 01-03-2011, 11:05 PM   #2
trick3d
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wouldnt it be 2011 sti stage 2 with cai AND injectors?
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Old 01-03-2011, 11:06 PM   #3
Innovative Tuning
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Quote:
Originally Posted by trick3d View Post
wouldnt it be 2011 sti stage 2 with cai AND injectors?
All the mods are listed in the thread and on the graphs. There's only so much room in the subject field...
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Old 01-03-2011, 11:09 PM   #4
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pretty much the exact same numbers im getting. my graphs will be up shortly
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Old 01-03-2011, 11:24 PM   #5
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Great test. How were the ambient temps during the pulls?

-- Ed
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Old 01-03-2011, 11:27 PM   #6
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Ok, im not sayin it doesnt look good, cuz it does. But why does the power look so low? i had a 10 sti with AEM CAI, and cobb DP and Cobb CBE and put down 315hp and 330TQ through Cobb, are the 11's that big of a difference only thing is we didnt have the inj. or FP....B/c I have the same set up Cobb DP, Invidia CBE, AEM CAI, and AP V2.......Just Askin?
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Old 01-03-2011, 11:35 PM   #7
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Quote:
Originally Posted by his_and_her_wrx View Post
Ok, im not sayin it doesnt look good, cuz it does. But why does the power look so low? i had a 10 sti with AEM CAI, and cobb DP and Cobb CBE and put down 315hp and 330TQ through Cobb, are the 11's that big of a difference only thing is we didnt have the inj. or FP....B/c I have the same set up Cobb DP, Invidia CBE, AEM CAI, and AP V2.......Just Askin?
were you on this same dyno, with the same DA conditions?
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Old 01-03-2011, 11:36 PM   #8
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Because this dyno reads lower than the one you were on.

-- Ed
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Old 01-03-2011, 11:41 PM   #9
Innovative Tuning
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Quote:
Originally Posted by Equilibrium Tuning View Post
Great test. How were the ambient temps during the pulls?

-- Ed
low 40s after vs. high 40s before if I remember correctly so the uncorrected difference between the two was larger.
Before/After without correction was:
265 whp / 302 wtq
vs
289 whp / 310 wtq

On some dynos the weather correction has a massive effect, but on the Mustang it seems to do a pretty good job of equalizing results even on turbo cars so I post graphs with weather correction. I know some people will say this makes no sense on a turbo car, but we've proven it to make readings taken one day vs. another on the same car more consistent.


his_and_her_wrx what dyno was your car on?
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Old 01-03-2011, 11:46 PM   #10
Innovative Tuning
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Quote:
Originally Posted by Phatron View Post
pretty much the exact same numbers im getting. my graphs will be up shortly
Wow that is pretty similar. I think some of the torque difference is really the shape of curve the road dyno generates due to the smoothing. On a chassis dyno you'd probably show a more pronounced torque peak.

Did you happen to test it with the downpipe and tune, but before the header and uppipe?
I'm curious how much they're helping with the stock cat back system in place.
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Old 01-04-2011, 01:35 AM   #11
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good info. What do you think of the cosworth intake vs the AEM?
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Old 01-04-2011, 01:45 AM   #12
Phatron
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Quote:
Originally Posted by Innovative Tuning View Post
Wow that is pretty similar. I think some of the torque difference is really the shape of curve the road dyno generates due to the smoothing. On a chassis dyno you'd probably show a more pronounced torque peak.

Did you happen to test it with the downpipe and tune, but before the header and uppipe?
I'm curious how much they're helping with the stock cat back system in place.
No.....everything was thrown on at once.

The owner basically made the same comment after seeing your thread. "So the header and up arent really doing anything?"

Im guessing your full cbe and the header are "offsetting" each other.

He's gonna get a full 3" soon.....i thought he said he was waiting for someone to come out with one.....but if your guy has one then someones making them

Have you ever tried running the Hybrid EBCS + mbc on a SI Drive car?
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Old 01-04-2011, 02:27 AM   #13
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So far I like it. The 30min drive home was fun. I didn't notice the turbo noise from the intake till I turned on sheridan. Then I accelerated to 45 quick and realized that I could hear the turbo.
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Old 01-04-2011, 08:41 AM   #14
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Quote:
Originally Posted by Phatron

No.....everything was thrown on at once.

The owner basically made the same comment after seeing your thread. "So the header and up arent really doing anything?"

Im guessing your full cbe and the header are "offsetting" each other.

He's gonna get a full 3" soon.....i thought he said he was waiting for someone to come out with one.....but if your guy has one then someones making them

Have you ever tried running the Hybrid EBCS + mbc on a SI Drive car?
I think this is the hatch right?? I see the CBE is Borla. Their website only has a cbe for the hatch. I am twiddling my thumbs.
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Old 01-04-2011, 09:43 AM   #15
xluben
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Quote:
Originally Posted by Innovative Tuning View Post
Wheel HP: 281
Wheel TQ: 302
Highest baseline wheel HP when stock: 217
Highest baseline wheel TQ when stock: 226

Car Info
Year: 2011
Injectors: DW 850cc
Intake/Inlet: Cosworth air intake kit
Downpipe: Invidia catted
CBE: Borla
Other Power Mods: walbro pump

Today we added injectors, a fuel pump, and the Cosworth air intake kit. Happily the intake did exactly what we hoped it would, which was to increase horsepower in the mid range and especially on the top end. The peak WHP only went up 19, but as you can see in the following graph, the gain near redline was massive for such an inexpensive modification. I put boost on the graphs so you can see that the change isn't from simply cranking the boost up.

The fuel mods got us back down to a safe maximum injector duty cycle, with room to grow for the future. I'm hitting at max of about 68-70% duty cycle now.
Great results and great comparison. I really wish more owners/shops would do a baseline run (and really as many pulls along the way as possible). It really helps other people see the actual gains that most mods will do.

The intake/injectors really added quite a bit of power up top. I'm curious if this was all because of the intake, or maybe the injectors were topping out with the old tune? Either way it looks like a nice result.

The tune you put on S mode looks good too. Very, very flat torque curve. Should be great for around town. I do wish my WRX had the capability to swap maps as easily as the STI's. Would be a very handy feature.

Last edited by xluben; 01-04-2011 at 09:57 AM.
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Old 01-04-2011, 10:05 AM   #16
xluben
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Quote:
Originally Posted by his_and_her_wrx View Post
Ok, im not sayin it doesnt look good, cuz it does. But why does the power look so low? i had a 10 sti with AEM CAI, and cobb DP and Cobb CBE and put down 315hp and 330TQ through Cobb, are the 11's that big of a difference only thing is we didnt have the inj. or FP....B/c I have the same set up Cobb DP, Invidia CBE, AEM CAI, and AP V2.......Just Askin?
COBB's dyno is around 240HP for a stock 08+ STI or 09+ WRX. If you compare that to the baseline run here you'll see how much lower this dyno reads. Add 20-25HP to this and the numbers look just about right compared to yours.

Quote:
Originally Posted by Phatron View Post
He's gonna get a full 3" soon.....i thought he said he was waiting for someone to come out with one.....but if your guy has one then someones making them
Quote:
Originally Posted by jockeygolfs View Post
I think this is the hatch right?? I see the CBE is Borla. Their website only has a cbe for the hatch. I am twiddling my thumbs.
That's my guess to (hatch vs sedan). Lots of them out for the hatch, not so much for the sedan. Should be coming out soon though...
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Old 01-04-2011, 10:49 AM   #17
Innovative Tuning
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Quote:
Originally Posted by Phatron View Post
No.....everything was thrown on at once.

The owner basically made the same comment after seeing your thread. "So the header and up arent really doing anything?"

Im guessing your full cbe and the header are "offsetting" each other.

He's gonna get a full 3" soon.....i thought he said he was waiting for someone to come out with one.....but if your guy has one then someones making them

Have you ever tried running the Hybrid EBCS + mbc on a SI Drive car?
Cool. I look forward to seeing what you gain with a 3" cat back.

It took some poking around, but we figured out that an 08-09 WRX Sedan cat back exhaust would fit the 2011 STI sedan. In this case it was a Borla cat back and keeping it 3" meant hacking the donut flange off it and welding a short pipe with 3" flange on it.

I haven't used an MBC in conjunction with the stock boost control system on the SI drive cars. I've run them with stock control or with an MBC. I imagine you get a little quicker spool from the MBC and retain the ability to change boost levels in different SI drive modes?

Quote:
Originally Posted by xluben View Post
Great results and great comparison. I really wish more owners/shops would do a baseline run (and really as many pulls along the way as possible). It really helps other people see the actual gains that most mods will do.

The intake/injectors really added quite a bit of power up top. I'm curious if this was all because of the intake, or maybe the injectors were topping out with the old tune? Either way it looks like a nice result.

The tune you put on S mode looks good too. Very, very flat torque curve. Should be great for around town. I do wish my WRX had the capability to swap maps as easily as the STI's. Would be a very handy feature.
Thanks! If we had upgraded the fuel system without adding the intake I probably would have made an extra 3-5 WHP and had a nice cushion knowing the injectors wouldn't max out under any conditions.

Adding the intake is what provided the big increase in airflow, but without the fuel mods I wouldn't have been able to use it and generate this increase in power. I would have had to drastically reduce boost to keep airflow consistent with what the car was flowing before the intake install to keep the stock fuel system from maxing out.

The SI Drive is a really nice feature. I've used it for all sorts of different things for different customers. Some people turn their car on and set the car to sport sharp every time they drive it so I just put the sport sharp mapping in the sport slot so they don't have to do this. Sometimes one is a drag setting and the others street settings or street, road, drag, etc. It's a pretty powerful feature.

Quote:
Originally Posted by xluben View Post
COBB's dyno is around 240HP for a stock 08+ STI or 09+ WRX. If you compare that to the baseline run here you'll see how much lower this dyno reads. Add 20-25HP to this and the numbers look just about right compared to yours.
240 to 315 is a 31% gain.
217 to 281 is a 29-30% gain.
I see more than 2% difference between totally stock cars so those results seem pretty similar. Without running both cars on the same dyno we can only guesstimate.
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Old 01-04-2011, 11:44 AM   #18
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Quote:
Originally Posted by Innovative Tuning View Post

240 to 315 is a 31% gain.
217 to 281 is a 29-30% gain.
I see more than 2% difference between totally stock cars so those results seem pretty similar. Without running both cars on the same dyno we can only guesstimate.
All of cobbs stage 2 2008+ vehicles that are on their dyno database are between 280 and 298 HP. none ever break 300hp with these same mods.I don't know where his claimed 315hp comes from. doesn't really matter anyway.

Your work is very solid. nice job.
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Old 01-08-2011, 10:13 AM   #19
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very nice improvements! now can you do the same comparison tests for a 2011 wrx please, just so i can know how much $ to bring with me when i come down to see you...

on a side note a few people posting in these two threads need to understand that no two dynos will read the same. if shop x has a mustang dyno at 123 smith street and shop y has a mustang dyno at 124 smith street and both dyno the same car on the same day with the same mods both shops will get diifferent numbers now you add in different brand dyno's, different DA accross the country and those numbers can become extremely skewed
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Old 01-08-2011, 10:19 AM   #20
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People get caught up in the numbers...
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Old 01-08-2011, 05:43 PM   #21
Innovative Tuning
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One of our customers is awaiting delivery of a 2011 WRX and we've been discussing different exhaust options so we'll see how that one does when the time comes.
Bone stock the 09+ WRXs are putting out more power than any stock Subaru we've tested.

I have a nice 07 STI on the dyno at the moment making similar power to this 2011 STI on pump gas, but the 07 has an EWG uppipe setup in addition to intake, exhaust, injectors, pump and I'm running more boost on it since I was asked to make the tune more aggressive on this car. I just started tuning it for meth injection and I'm expecting to pick up around 25 whp from that without touching the boost. We shall see.

I'm curious to see if all the 2011 STI's make this much power on a setup like this or if this car is going to be above average.
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Old 01-08-2011, 05:57 PM   #22
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You know Subaru makes a stock airbox that is 85mm!
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Old 01-08-2011, 06:59 PM   #23
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a link or it's a lie ^ ^ ^

I'm real eager to see what a pro-tuned stage 1, 2011 WRX dyno graph looks like. I never messed with my stock 09 WRX turbo, went straight for broke

nice job guys . . .
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Old 01-08-2011, 07:27 PM   #24
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nice numbers and review. i wanna get my stage 2 vf52 08 wrx to the dyno sometime in the future.
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Old 01-08-2011, 08:47 PM   #25
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I have the airbox on my car. Check out www.finelineimports.net under "blog" section under Factory Fresh 07 STi. Check out the pictures, it's made buy Subaru! I did not buy the part, FLi got the part and installed! Have any more questions just PM me!
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