First off what's an OTS map? Ok, so I flashed stage 1 recently on my car. Got the gabetune flash from Bullwinkle. I'm already used to the power and I want more. I heard that I can run a stage 2 with just a downpipe, but I do have the 07 which is prone to detonate without a protune. My questions. 1) Can I run just a 3" catless DP mated to my stock exhaust and still see noticable gains or would going with a full tbe be better? 2) Someone clear up tuning and flashing for me. Can it just be flashed and run safely or do I need to get it on the dyno for tuning? Can I flash it with a openecu stage 2 or just go with the AP2 and get in protuned? I'm incredibly confused about the whole tuning and map flashing. :hsugh:
Ahhh we want more power now! i believe it's just down pipe for stage2 anything after that will benifit the stage2 that much more. if you flash it you should be fine. tunning will get you a bit more agressive and more power
You'll notice some gain with just the DP itself. Going Full TBE will help. It's up to you, which EM you want. There are stage 2 07 sti maps out there or if you want, get it protune either OpenSource or AP or whatever EM you want.
My .02.... If you have an '07, leave it stock until there are enough people who know what the hell they are doing w/regards to tuning. The timing and fueling on them are totally different and things can go south pretty quickly from the little I've read about them.
You *may* want to post the same on NAZIOC - just be sure to wear your flame retardant suit. You can get some good info on Cobb as well re catless set-ups on 07 STi's. Have fun!
Well, this is true to a point. The '07 STI heads flow more, and the increased airflow tends to run out the fuel pump and injectors on even stock '07 STI's, as the fuel and timing learning capabilities of the '07 stock tune are terrible. This injector/pump lean condition, combined with two timing advance maps that have confusing addition logic, have been the main cause of '07 STI's popping engines. The stock '07 map has two additional timing maps that aim to add power to the car, even when it is running stoich AFR's during boost. It is thought that Subaru/Denso did this to maintain power while making the car compliant with US EPA laws. There are few that understand the logic of these additional timing maps, and many early tuners (including Jorge and some of the more well known Cobb tuners) were leaving them with stock values, which could add up to 4 degrees of timing during a WOT run. This additional timing, combined with a aggressive tune that has a possibility of running the injectors over 100%, were some of the primary causes of engine failures on "protuned" '07 STI. In addition to all those tuning problems, it has been documented that Subaru has had a bad batch if injectors that went into '07 STI's. These bad injectors have also caused motors to blow. As you can see, there is reason behind the "'07 STI's are blowing motors all over the place OMFG," talk. With all of that said, I think it is perfectly safe to run stage 2 on a '07 STI. I would recommend, at the minimum: -Stage 2 mods (DP or TBE, obviously) -A tune by a reputable tuner (the XPT '07 STI stage 2 map would be considered reputable) -A Walbro or equivalent fuel pump Really, the only major difference is the addition of a fuel pump for stage 2, but number two on that list is certainly important as well.
Well, the "flashing" simply indicates something changing on your car. If you were to purchase an AP, or flash an OSecu basemap, they're both simply basemaps that are tuned for '07 STI's, but not tuned specifically for your car (this is what Gabe's stage 1 map is). A "protune" is a tune that is tailored specifically for your car. Obviously, the protune will be more safe. No, it is not required that you use a dyno to tune. As a dyno run is repeatable, it enables a tuner to tune your car for more repeatable power at a specific load. A road tune will allow your tuner to tune your car to more real world conditions, as you're actually driving. There are limitations of both, and they are simply different tools for tuning. I would say that the generalized axiom is; a dyno tune will get you more power, but a road tune will be more safe.
To clarify, early on, these findings were not widely accepted. That is not the case now. It is my understanding that most of these tuners (including Jorge), in collaboration with Gabedude and other openecu tuners, now have a very good understanding of said logic.
Yes. In fact, these tables were not initially even available for tuner use with Cobb's protuner software. :eek3::roll: There is still some debate as to "should we use these tables or zero them?" However -- all knowledgeable tuners will know how to zero the tables and get timing behavior the same as previous MY STI's.
SubieDave. I went from the GabeDude Stage 1 (flashed it at 200 miles) to the Cobb stage 2. hp increase was noticeable but torque was not. Driveability was WAY WAY WAY better with the Gabedude map. Protune by Jorge helped a very great deal with the lack of hp, torque, and 1st gear driveability of the Cobb off the shelf map. If you are thinking of getting it protuned, my suggestion is to choose a tuner first. I would have been perfectly happy with an openecu tune, but I wanted Jorge to tune it and he does not tune with openecu. To echo what Bullwinkle said, an off the shelf xpt map would be a noticeable, and (proven) safe route to take. Based on graphs and datalogs I've seen of said 07 stage 2 xpt maps, and my experience with cobb maps, I think if you choose to only do an ots map, the xpt route is a solid choice.
To which must be added: the more time a tuner has with the car, the better the tune. I know that, given a few logs and time to think while goofing off at work, Tom can make maps better than anybody. "Holy boost taper Batman!" :laugh::laugh::laugh::laugh:
+1 for xpt's maps braden gets some good power out of his maps and they are very nice i run his stage 2 for my bugeye and soon to run his stage 2 w/GMBCS...im very very happy
I'd listen to Bullwinkle. He's way more in the know nowadays; I'm pretty far out of the loop as of the recent happenings in the openecu world as of lately.
I've always read that a protune is needed for a stage 2 on the 07's. I just want to be able to have room to breathe and add more if I want to and still be able to use the same flash to work with what I add on. I just don't want to throw away money like I did with my Integra
