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Old 08-09-2007, 01:50 AM   #1
Dyno Flash
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Default Passion and Power with a Stock '07 STi - Ecutek tuned

Tuning these '07 Ecus is like trying to figure out how to unlock the mystery of a woman's orgasm. You work your away around gently and try to focus on the senstive areas.

When you reach just the right combination of ecu mapping methods the car really starts to come alive. What I love about the 07 STI ecu is that its a real challenge. You have to think and feel and connect with that ecu and in the end if you get it right the end result runs like a dream.

This car was BONE STOCK '07 STI - no mods - all 100% stock

I added a custom tuned Ecutek reflash

Here is the before and after dyno sheet

I am very pleased with the results - the car ran as smooth a glass

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Old 08-09-2007, 07:20 PM   #2
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wow.. just wow.. good numbers
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Old 08-09-2007, 07:21 PM   #3
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im looking forward to hearing how the car runs after a few thousand miles... then, its straight to you for a tune.. great numbers!!!
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Old 08-09-2007, 08:36 PM   #4
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the stock map doesnt look happy at all around 5k. I feel bad for the cali guys..........i'd be surpised if they see 50k out of a stock car. LOL
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Old 08-09-2007, 09:25 PM   #5
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Quote:
Originally Posted by Paul View Post
the stock map doesnt look happy at all around 5k. I feel bad for the cali guys..........i'd be surpised if they see 50k out of a stock car. LOL
thats exactly what my car did on the baseline pull.... Had that dip around 5kish. Stock map is horrible.
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Old 08-09-2007, 09:55 PM   #6
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And peak power is right after it just dumped a bunch of timing in at 6200... no wonder people say the 07's drive so weird.

Two things:

- Looks good starting the pull sooner... you can actually see the spoolup
- Horsepower stays at almost exactly 270whp from 4500rpm to 6800rpm... now that's a powerband!
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Old 08-09-2007, 10:18 PM   #7
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nice job Al.
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Old 08-09-2007, 11:24 PM   #8
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That stock tune is terrible! wow!

I like that you don't give up Al.
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Old 08-09-2007, 11:36 PM   #9
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Looks much better Al.

The 07's do run like utter crap out here in cali on the stock map. Its just amazing that an upgraded and well tuned engine will be much more reliable and last longer than a bone stock car. I dunno what Subaru is thinking...

-- Ed
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Old 08-10-2007, 01:40 PM   #10
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It must be a nightmare for the oem software engineers to balance the concerns of emissions compliance, legal deprtment, warranty and marekting wings

We have a bone stock '07 STI as a shop car here which the owner usually lends out to customers who need a loaner car

On more than on occassion the customers who may or may not have a performance car or a SUV or what ever have put ion 87 octane el cheapo gas

It has been interesting to see how the stock ecu has reacted to 87 octane gas and how adapative the stock ecu is

I find the stock ecu witha bone stock car is very resiliant and tough

I conclude that adding parts on a 07 without a tune is far more dangerous than on previous years as the state of the stock tune is far more agressive than on previous years.
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Old 08-10-2007, 02:37 PM   #11
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thats a stock STi? Jesus christ man, that car would probably romp all over the majority of turbo upgraded wrxs on this board with all the bolt ons..well, maybe the 2.0ls. Great work Al.

So this car is easily in the 12s without any mods except tuning.. that is very cool.
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Old 08-10-2007, 02:59 PM   #12
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Quote:
Originally Posted by PaulRex View Post
thats a stock STi? Jesus christ man, that car would probably romp all over the majority of turbo upgraded wrxs on this board with all the bolt ons..well, maybe the 2.0ls. Great work Al.

So this car is easily in the 12s without any mods except tuning.. that is very cool.
Come on now... you're not just basing that observation off the peak numbers are you? Look at the bone stock baseline run. A bone stock STI makes 251whp/253ft-lbs of torque on this dyno (totally stock, no tuning, no nothing). That is a very high baseline and should be taken into consideration when looking at any numbers from this dyno. Just look at the % gains and the quality of the curve... that's what really matters.

-- Ed
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Old 08-10-2007, 04:38 PM   #13
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I'm just pleased that Al is posting these graphs with 0 smoothing unlike other people whose graphs look like that with smoothing on 5...
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Old 08-10-2007, 05:03 PM   #14
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Quote:
Originally Posted by Vaus View Post
Come on now... you're not just basing that observation off the peak numbers are you? Look at the bone stock baseline run. A bone stock STI makes 251whp/253ft-lbs of torque on this dyno (totally stock, no tuning, no nothing). That is a very high baseline and should be taken into consideration when looking at any numbers from this dyno. Just look at the % gains and the quality of the curve... that's what really matters.

-- Ed
you got me, i really didnt look at the baseline closely except to notice that dip at 5k and ignorned the high #s. typical nasioc reader heh.. But, considering that a stock 07 sti can get down near 13 flat in the 1/4 im not that far off.

paul
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Old 08-10-2007, 05:15 PM   #15
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I disagree with Vaus's characterization of our dyno as a "high reading" dyno

The great thing about a Dyno Jet is they are basically standardized and all read the same

I have come to realize that which ever dyno I work on becomes a "high reading" dyno after people see the power numbers I am making with my tuning

The reality is that on all dynos you should ONLY look at the A - B comparison before and after and the shape of the curve - that is the sole rational use for the dyno

While I am not a dyno bench racer - I dont think 250 is a lot of power for a stock 07 sti on 93 octane pump gas. Based upon my experience they make between 235 - 260 on a Dyno Jet based upon the kind of gas being used and the way the ecu is adjusting to the operating conditions and also the climatic conditions then present.

When you rely on a Dyno Jet which is the industry standard I think there is a very accurate correlation between the power readings and the actual power based upon the vefied drag strip trap times as compared to the dyno jet whp measurements

I have seen may that make that much power on other dynos

I have also seen cars which made less power on this dyno

For example - this one made only 245 stock with a SPT cat back




Al

Last edited by Dyno Flash; 08-10-2007 at 07:56 PM.
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Old 08-10-2007, 08:02 PM   #16
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i dont think it matters how high the dyno reads but the fact that he got 27Whp and 75ft-lbs of torque out a of stock car..
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Old 08-10-2007, 08:09 PM   #17
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Quote:
Originally Posted by PaulRex View Post
thats a stock STi? Jesus christ man, that car would probably romp all over the majority of turbo upgraded wrxs on this board with all the bolt ons..well, maybe the 2.0ls. Great work Al.
say it ain't so haha either way, well done. I'm drooling over that powerband
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Old 08-10-2007, 09:30 PM   #18
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27whp/75tq increase over stock = great tuning on the new ecu, congrats!

Al man, you're a strange guy in a likeable kind of way. I applaude your continued passion for tuning teh scooby.
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Old 08-10-2007, 09:42 PM   #19
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Originally Posted by Boxer112 View Post
i dont think it matters how high the dyno reads but the fact that he got 27Whp and 75ft-lbs of torque out a of stock car..
Ah, but it does .

You really need to look at the gains as a % change not an absolute whp. A higher reading dyno will exaggerate the absolute hp gain as compared to a lower reading one.

So its actually an 11% gain in peak whp and a whopping 29% gain in peak torque. Not trying to take anything away from the gains... just pointing out that this is the only fair way to display them.

-- Ed
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Old 08-10-2007, 10:35 PM   #20
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^^^absolutely^^^ great work al, you'll probably be seeing me soon, all the way from dc
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Old 08-11-2007, 12:45 AM   #21
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Originally Posted by Vaus View Post
Ah, but it does .

You really need to look at the gains as a % change not an absolute whp. A higher reading dyno will exaggerate the absolute hp gain as compared to a lower reading one.

So its actually an 11% gain in peak whp and a whopping 29% gain in peak torque. Not trying to take anything away from the gains... just pointing out that this is the only fair way to display them.

-- Ed
How can you suggest that my Dyno Jet 424X is a "high reading dyno?"

Do you have any experience of using Dyno Jets ?

I do find it bizzare that someone who uses software to measure power through an OBD II port using wheel speed would question the mesaurements on a device like a Dyno Jet.

Last edited by Dyno Flash; 08-11-2007 at 01:06 AM.
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Old 08-11-2007, 12:47 AM   #22
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^^^absolutely^^^ great work al, you'll probably be seeing me soon, all the way from dc
Thanks and hope you and everyone else can make it down to do some free dyno pulls tomorrow on our Dyno Jet during our Turbo Fest so we can see how inflated everyone's dyno readings are (There will be a lot of disapointments tomorrow)

The Dyno Jet is a giant reality check - there is no knob to turn up or down - it is what it is
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Old 08-11-2007, 01:18 AM   #23
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Quote:
Originally Posted by Vaus View Post
Ah, but it does .

You really need to look at the gains as a % change not an absolute whp. A higher reading dyno will exaggerate the absolute hp gain as compared to a lower reading one.

So its actually an 11% gain in peak whp and a whopping 29% gain in peak torque. Not trying to take anything away from the gains... just pointing out that this is the only fair way to display them.

-- Ed
Ed,
i dont know much about dyno's but you said its a % change, aren't those percentage changes still good on a stock car???
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Old 08-11-2007, 01:33 AM   #24
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Quote:
Originally Posted by Vaus View Post
Come on now... you're not just basing that observation off the peak numbers are you? Look at the bone stock baseline run. A bone stock STI makes 251whp/253ft-lbs of torque on this dyno (totally stock, no tuning, no nothing). That is a very high baseline and should be taken into consideration when looking at any numbers from this dyno. Just look at the % gains and the quality of the curve... that's what really matters.

-- Ed
Most 07's make 200 to 220. And thats on 10 or 15 dynos across the entire US and Canada.
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Old 08-11-2007, 03:06 AM   #25
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Originally Posted by AZScoobie View Post
Most 07's make 200 to 220. And thats on 10 or 15 dynos across the entire US and Canada.
On an older-style dynojet?! That'd be a shocker to me.
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