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Old 02-03-2008, 12:18 AM   #1
benw
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Default tuned my first 07 STI... impressions

Well today I tuned a friend's stage-2 + APS TMIC STI. I took extra precautions especially with timing, to ensure that the car was safe and smooth. I used Gabe's strategy of cloning all base timing tables, zeroing advance A and B, and applied a flattened DA on advance C and D of 6 degrees. Gabe's findings and posts helped tremendously, I hopped in and started tuning like an 04-06 and it responded right on the money.

things I like:
- tons of resolution. This is awesome, especially when tuning timing and fuel!
- ECU speed. The ECU seemed to learn and adjust VERY quickly to knock, and overall, seemed much more adept in its timing strategy.
- did I mention the resolution?
- 2007 gears are BADASS.

things I didn't like:
- more resolution means more legwork. however, it was worth it in the end, and was very smooth.

injectors were at 95% and A:F was 11.0 tapering to 10.6 at 7k. Timing was 10-12 at peakboost with a max of 23 degrees at redline (crummy 91 octane, and I think we're still on winter mix).


What are your guys experiences with the 07? I wish I had more time to play around with one!
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Last edited by benw; 02-04-2008 at 01:33 AM.
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Old 02-03-2008, 12:40 AM   #2
Remnex
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I have two tuned 07 STIs, and they are certainly an interesting car to tune.

It's funny that you mention the resolution as I was comparing the 06 to the 07 yesterday and the difference is amazing.
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Old 02-03-2008, 11:54 AM   #3
Wrinkleboi
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when you say keep all base tables the same, do you mean keep them the same as stock, or make all 4 maps identical to each other?

and i think you have a typo above talking about the advance tables... you mentioned B twice but never mentioned D.

good thread though, i'm really interested to know peoples experiences with tuning the 07 STi and what timing methods they used. its about time the definite answer on how to properly tune the 07 STi knowledge is really out there for people to find easily.
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Old 02-03-2008, 11:00 PM   #4
blkscooby
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I tuned an 07 a few months ago with the knowledge of the new timing advance tables and basing alot of it off my 04-06 STI tunes. I did notice that the cam advance seems different and it seems to like a little less AVCS over the previous years. Other than that it was great! The boost control is also different, not sure if it is a different solenoid. It took a while to get the boost dialed in properly.
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Old 02-04-2008, 12:20 AM   #5
gabedude
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The 07 is a bitch to tune. But once you have it right, it is right. You tune it like a WRX, not an STI really. 0 Advance A&B. Keep Advance C&D the same (whatever you put in there). Keep all 4 base timing the same (whatever you put in there), Only change AVCS B. Fix the knock correction ranges for FLKC (use the whole table) and FBKC ranges. Done.

I do take advantage of the lift throttle/cruise transition multiplier sometimes (not currently though) by using less timing in Base A&C (but these table match), compared to B&D (which should match).

Also, make the fuel tables the same.

Gabe
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Old 02-04-2008, 12:52 AM   #6
gabedude
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Modify the ETC settings as well. I use the 07 EU STI ETC settings.

Gabe
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Old 02-04-2008, 01:11 AM   #7
williaty
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OK, I would like to see the 07 EU ETC maps people keep raving about. Is there anywhere to look them up?
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Old 02-04-2008, 01:31 AM   #8
benw
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yes, that was a typo regarding advance tables. I zero A&B and set C&D to the same.

The EU etc settings are the things like accelerator pedal which have a MARKED improvement over the USDM settings.
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Old 02-04-2008, 01:32 AM   #9
williaty
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That's what I've heard, and that's why I want to see what they do different.
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Old 02-04-2008, 02:00 AM   #10
gabedude
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The stock ETC settings go from 20% to an 80% jump. No linearity at all. Here is may Stage 1 map to start tuning a stage whatever with. You want the V2 Roms.

Gabe

http://www.xpttuning.com/osecuroms/v...php?f=21&t=811

Last edited by gabedude; 02-04-2008 at 02:10 AM.
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Old 02-04-2008, 02:04 AM   #11
gabedude
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I run 12.5:1 tapering to 11.3:1. 20 PSI Peak.

94% IDC at 32 degrees out.

This pretty much matches Dataloglab:

Mods:
APS 65 MM CAI
3 Inch Catless TBE (Bellmouth D/P)
My modified XPT stage 2 APS 65 MM CAI map (it is included in the XPT package)



Meth is going on next.

Last edited by gabedude; 02-04-2008 at 02:11 AM.
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Old 02-04-2008, 02:25 AM   #12
williaty
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Oh man, that's A LOT different and A LOT more complicated than the DBW NA mapping. Stock, both the Requested Torque and Target Throttle Plate Angle tables are the same in all RPM rows AND the column headings are 0, 10, 20..., 80, 100. Then each column is filled with whatever the column heading is. In other words, the stock mapping makes throttle plate angle track accell pedal angle exacty. This results in the throttle pedal being more of an on-off switch because 80% of max torque at any RPM is reached in less than 35% of the pedal travel.

I logged accell pedal angle, load, and RPM. I then plotted the %pedal angle against the % of maximum load. This gave me a curve that looked a little like log(x) but with a sharper knee. I then changed the Requested Torque table so the requested torque is 1/2 the pedal angle %. This has almost eliminated the driveline bounce near idle, given a much more linear power delivery, made shift timing easier (because the engine now begins to fall off as soon as you pick up your foot rather than floating until you get your foot OFF the pedal), and has made the car MUCH easier to control with the throttle in a slide.

I'm going to have to put some serious number crunching into those ETC tables in your STi ROM, gabe. I'd like to figure out why they're varying the mapping with RPM. Do you think it has to do with keeping a given pedal % at a given % of max load as you guys come on boost?
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Old 02-04-2008, 04:18 AM   #13
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like most people have been saying the 07 STi ECU is a pain to start with, but once to figure it out and get it dialed in, its amazing.

I actually made my own request throttle maps instead of using older or EU maps
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Old 02-04-2008, 09:41 AM   #14
gabedude
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Quote:
Originally Posted by 555 Motorsports View Post
like most people have been saying the 07 STi ECU is a pain to start with, but once to figure it out and get it dialed in, its amazing.

I actually made my own request throttle maps instead of using older or EU maps
My EU mapping is not an exact copy, but it gives a 1:1 pedal relationship.

I alos have a soft rev limit (50%) throttle cut at redline to aid in powershifting.
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Old 02-04-2008, 03:00 PM   #15
Benchmark Tuning
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Quote:
Originally Posted by gabedude View Post
My EU mapping is not an exact copy, but it gives a 1:1 pedal relationship.

I alos have a soft rev limit (50%) throttle cut at redline to aid in powershifting.
I have my maps set-up 1:1 as well, I have seen the stock DBW maps, and I've set-up both for trial. I found that the way I set mine up gave smoother all around throttle response opposed to all the other mappings that I've tested.

yep...power shifting is fun
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Old 02-08-2008, 11:15 AM   #16
max07sti
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Sounds awsome. I'm going to have to keep researching before I get mine done or attemped it.
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