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02-17-2011, 09:48 AM | #26 | |
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Being new at this...please explain...also, can you reach that high of boost with just an AP stage 1 flash?
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02-17-2011, 10:03 AM | #27 |
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02-17-2011, 10:42 AM | #28 | ||
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Search the Legacy GT forums. They have had the same TMIC for a few years longer and there are quite a few pictures of them blown apart. I think some of them even happened at stock, or near stock boost levels. |
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02-17-2011, 10:45 AM | #29 | |
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He's not using an off the shelf stage1 map. There can be a big difference between the two. |
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02-17-2011, 11:05 AM | #30 | |
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Sorry for the greenhorn question...But could you please explain? I understand the off the shelf COBB AP. But when you say protune, you lost me in that concept. Need help in understanding when this would be required, needed. or wanted...Please help? |
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02-17-2011, 11:07 AM | #31 |
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02-17-2011, 11:12 AM | #32 |
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Protune is simply tuning a map to be specific for your car. Every car is different. For example, my car with the graph above had a 10.5:1 AFR instead of the 11.2:1 target that the OTS map should be hitting. If I protuned for my car, we could get the AFR's back where they should be and I'd make more power than the Off the shelf map and still be safe.
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02-17-2011, 11:13 AM | #33 | |
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So, if I am staying stock other than a K&N drop filter, and an AP from COBB (at a stage one flash) a Pro tune (?) is not needed or required...correct. I just want to protect the investment. Thanks and sorry for the lack of knowledge here, but trying to learn a bit more every day... |
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02-17-2011, 11:29 AM | #34 | |
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Here is an example of how a protune can provide larger gains over an OTS tune. The top line is the OP's Stage 1 18psi tune. The middle line is the COBB OTS Stage 1 tune. Not saying that a custom tune will magically (and safely) gain 20hp and 20ft-lbs of torque (in fact a custom tune may gain you very little), but there is the possibility for better gains with a custom tune. A custom tune could also notice spots in the OTS tune that don't look right (if there are any), and correct those. There really aren't any downside except for cost. |
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02-17-2011, 12:32 PM | #35 |
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Ok... Back from lunch now...
So, a Pro Tune is kind of "my car" car specific rather than an AP is just mass produced car specific...? |
02-17-2011, 12:36 PM | #36 | |
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A custom tune is custom for your car, how you drive, where you drive, whether you want full out power bragging or something with more area under the curve. |
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02-17-2011, 12:42 PM | #37 |
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Another dumb question...If I may...?
I know the 2009 + WRX and up are the ones to get. 08 not so much. But, when speaking about the boost etc...are the turbos and the boost amounts the same when utilizing the AP and tuning? STI and the WRX ...Any differences ?Thanks guys... |
02-17-2011, 12:42 PM | #38 | |
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02-17-2011, 10:27 PM | #39 |
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This thread had some activity while I was working today!
To add to the conversation about protune versus OTS, everything said above is correct--to elaborate on why I went protune: I read and debated for months on buying just the AP, getting a protune, or doing an open source etune. (see Unabomber's complete guide on tuning) I decided on the protune mainly because I read a couple bad stories about AP OTS stage 1 maps gone wrong (knowing most forum horror stories are either not accurate, lacking full mod disclosure, or are simply just corner cases). Still, I was nervous about whether I needed to log and learn about knock tables, etc...and what good/bad logs look like. Given Surgeline's reputation and their 1/2 off deal when you buy the AP from them, I paid a little extra to "set it and forget it." I'm new and lack confidence so my primary goal was a safe, trustworthy tune. I got the max power I could for my individual vehicle and don't have to worry that the map isn't lining up right somewhere. OTS maps are supposed to be very conservative to work with all cars + variation and should be plenty safe. It was a peace of mind thing for me. If I want to risk some safety for power, I have a 17.5psi map I can use. Surgeline advised not using it on 100+ deg days and using higher quality octane fuel if available. The experience of getting your car strapped to the dyno was pretty sweet, I learned a lot from that process, too. |
02-17-2011, 11:35 PM | #40 |
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07-10-2011, 06:42 PM | #41 |
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Not trying to stir a pot, but, did anyone else notice the weirdness in these two maps that the OP has shared?
If you look at the "Stage 1 - green" vs "Stage 2 - blue", they are identical. Something can't be right about these two. Both claim 18psi boost, Stage2 was an Invidia DP, but their curve and numbers are identical. So, something is lying about these numbers Could be that the tuner is trying to post bigger specs for their tunes than are realistic maybe? |
07-11-2011, 06:00 PM | #42 | |
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Subaru can tell if you have flashed your ECU with a AP. |
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07-12-2011, 05:53 PM | #43 |
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How? What makes you think so?
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07-12-2011, 06:05 PM | #44 |
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What if you flash it back to the original stock tune before you take it in for service? I was thinking of picking up an AP after I saw this thread, but if they can tell its been flashed then they will probably deny my claim if I ever have one.
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07-13-2011, 10:49 AM | #45 |
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I've read that there's a counter on the ECU that counts the number of times the ECU has been flashed. Assuming you start with 1 as the stock map, flash to a aftermarket map, then back to stock the counter would show 3 instead of 1. However they only way they could tell you did this is if your car was hooked up to their ECU programmer. Depending on what you take your can in for may lead them to try and trouble shoot the ECU.
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07-13-2011, 11:21 AM | #46 | |
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07-13-2011, 11:40 AM | #47 |
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The only thing they can tell is how long its been since the ecu was reset. This is what the counter does. Same thing happens when you disconnect the battery. So flashing back to stock looks the same to them as disconnecting/reconnecting the battery. This comes from a buddy that works at subaru.
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07-13-2011, 12:53 PM | #48 | |
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I just called my dealer, who's a friend of mine, and asked him about this. He laughed, then told me as long as there isn't a DP on the car, they don't hunt for tunes. Maybe other dealers are different, I dunno. Last edited by flycaster; 07-13-2011 at 01:06 PM. |
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07-13-2011, 01:03 PM | #49 |
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I read in another post awhile back that somebody claimed the same exact thing as cdoliver said, so now I'm on the fence.
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07-13-2011, 01:13 PM | #50 | |
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