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Old 03-26-2004, 08:36 AM   #551
mazdman
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This isn't true in my case. My car is totally
stock & I run 93 octane gas, since 94 is no longer availlable. My car is faster & pulls
stronger w/ the reflash than before. YMMV
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Old 03-26-2004, 03:27 PM   #552
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If any of you are going to your dealer, and getting the re-flash done any time soon, please dyno your car before and after the re-flash, and please please post your results. This way we would all know if the re-flash affects the power of the STI. Thanks!
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Old 03-26-2004, 03:30 PM   #553
turboICE
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Quote:
Originally posted by D.D.
If any of you are going to your dealer, and getting the re-flash done any time soon, please dyno your car before and after the re-flash, and please please post your results. This way we would all know if the re-flash affects the power of the STI. Thanks!
I wish each of the people who have asked for that over the last 9 months would either do what they are suggesting themselves or at least offer to pay for all this dyno time that others are supposed to be obligated to incur.

Last edited by turboICE; 03-26-2004 at 04:13 PM.
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Old 03-26-2004, 03:50 PM   #554
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Quote:
Originally posted by turboICE
I wish each of the people who have asked for that over the last 9 months would either do what they are suggesting themselves or at least offer to pay for all this dyno time that others are supposed to be obligated to incur.
You know, not everyone lives in an area where a 4 wheel dyno is avalible to them, also you are not OBLIGATED to do any thing, I don't remember putting a gun to your head.
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Old 03-26-2004, 04:07 PM   #555
turboICE
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Quote:
Originally posted by D.D.
You know, not everyone lives in an area where a 4 wheel dyno is avalible to them, also you are not OBLIGATED to do any thing, I don't remember putting a gun to your head.
But you do live in such an area - http://www.turbochargers.com/

Turbochargers.com
5410 Burr Oak Drive
Houston, Texas 77092

Right off 290 NW of Houston.

That isn't near you? You came up with a great idea - why don't you do it?

I made a comment to the few dozen people who have suggested that other people take their car to a dyno (pay for it), convince their dealer to reflash their ECU (lots of time), go without their car for three days, and then take their car back to the dyno (pay for it again) - and they ask in such a way as if it were no big deal. If you took personal offense to my open response, that was your choice to take offense not mine. Sometimes when you are the 37th person to ask others to do something that you should be willing to do for the community yourself it gets really old.
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Old 03-26-2004, 04:41 PM   #556
D.D.
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turboice:
Point taken. But there's something you don't know about turbochargers.com. I went there the 3rd day after I bought my STI, no one in the establisment knew how to set up an STI, the "tech" told me after 30 min. of trying to hook it up to the dyno, that he needed to take my inercooler apart, and rip this out, rip that out etc. At that point I told him to stop, I not interested anymore. He still charged me $50 just to do nothing. Since I could not find another 4 wheel dyno in my area, I gave up the whloe idea of it. FYI you can't pay me enough to go back to Turbochargers.com. Any how so you know there no offense taken.
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Old 03-26-2004, 04:52 PM   #557
turboICE
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Ouch. That is the suck - clearly they were lost. Glad you walked out and good idea to keep going without looking back - guess Dallas is your closest. Don't remember who but some dyno place decided to go right by the tie down points and tie down to the lateral links - for several during a dyno day - ugly.
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Old 03-26-2004, 05:52 PM   #558
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Quote:
Originally posted by D.D.
turboice:
Point taken. But there's something you don't know about turbochargers.com. I went there the 3rd day after I bought my STI, no one in the establisment knew how to set up an STI, the "tech" told me after 30 min. of trying to hook it up to the dyno, that he needed to take my inercooler apart, and rip this out, rip that out etc. At that point I told him to stop, I not interested anymore. He still charged me $50 just to do nothing. Since I could not find another 4 wheel dyno in my area, I gave up the whloe idea of it. FYI you can't pay me enough to go back to Turbochargers.com. Any how so you know there no offense taken.
MZM in austin is the closest awd dyno that knows what they are doing.
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Old 03-28-2004, 03:19 AM   #559
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Just like the So. Ca. residents always wanting to sue
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Old 04-06-2004, 10:28 PM   #560
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Quote:
Originally posted by turboICE
And I keep seeing people who want simple information that should be easier to find then searching through a 22 page thread sent here.

If the answer can be answered then it would be nice to have it updated at the beginning of the thread or seperately posted and displayed quickly.

I will readily admit not reading all 22 pages, but have not yet seen a build date cutoff or what information should be looked for on the ECU sticker to know if it is the old code or the new code. The recent sales don't matter for those who have bought cars that were on the lot for a long time - build date or ECU sticker information in a readily available place would be easier to point to than 22 pages of information that discuss the history of the problem but not the answer being sought now.
Wow, that would make too much sense! Glenn have you got some free time. Especially since this thread is stickied.
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Old 04-20-2004, 01:28 AM   #561
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I have an 04 wrx wagon, and definalty have this problem.
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Old 05-15-2004, 09:30 PM   #562
jmacdonald801
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Default here's a shocker for you all

I just took home my '05 STI.

Detonation between 4000-5000 RPMS under load in 3rd gear every time.

I'm pretty pissed.
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Old 06-04-2004, 11:32 PM   #563
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Same problem... Just got a used 04... didn't notice it at first, but I do now...
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Old 06-06-2004, 12:15 AM   #564
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I just got a used one also. 9800 mi on it. How can you tell and at what speeds?
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Old 06-08-2004, 09:02 PM   #565
10.5sec1992AWDtalon
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Hi everyone!

Ok folks I'm new here, I just read this entire thread as well as a few others so please don't tell me to search the forum as I'm cross eye right now the way it is from all this, LOL... but a few questions:

1. Has the flash now been 100% proven by good dyno or 1/4 miles run tests to cut HP?

2. If this new program does indeed cut HP, does the 2005 STI make 300 HP, or is this flash info also part of the retune for the new model thus lowering HP?

3. Sounds like 2005 have knock issues too????

Also....I'm no newbie to turbo/AWD. I've got a pretty good understanding of turbo motors, timing changes can make big HP differences on these small turbo motors.

I'm looking to get a 2005 STI soon, or the EVO MR IF it's really coming this year.

FWIW:
I personally modded and tested my 1992 AWD Talon in several stages over the span of about 9 years so far, testing each stage at the local track with many runs, best times were:

base stock run when I got it new way back in 1993 was 14.8@89

A few, easy, freebie mods netted a 14.0@94

$400 in simple mods netted 13.5@100, add to that:

Another $1200 netted 12.4@110 - all on the stock 14b turbo, on an unopened 135,000 miles by then motor. (this was my daily driver and still passed Wisconsin emmission testing).

Another $500 for a 16G turbo to replace the way overtaxed stock 14b turbo put me at 11.8@115 and got me kicked off the track due to no roll cage.

Car then was retired to being my toy and track only car, setup to comply with track rules.

Currently after 2 more "stages" it runs easy mid 10's@129 all day without NOS, and it's still reliable too. It's seen over 400 1/4 mile runs with very few parts being broke.

I mainly burn up clutches, I run a weaker clutch than my HP dictates, I'm using an ACT 2600 right now, on my 12-11 sec runs I was only using an ACT 2100.

Anyone that was smart early on with the Talon's realized the clutch is the drivetrain "fuse" so to speak in these cars, too strong and too much HP and the shock load will kill all sorts of drive train parts.


There was talk of the STI running rich. My 2 cents....this is to protect the motor at WOT/full boost, the Talons did that too, a massive fuell dump at WOT/full boost keeps things cool, and yes it kills some power but the boost more than makes up for the overly rich condition HP wise, thus black soot on the tail pipe.

I'm hoping some of my knowledge can be transfered to the STI, as sooner or later if I get one the modding will start. I'm more inclined to the STI than the EVO MR as I just would like something a bit different. I probably should get an EVO though as that's the same 4G63 motor as my Talon has, but I really want another Subbie, I haven't had one for years, I used to have a 4WD wagon many years back and loved that little thing to death!

Sorry for the long post everyone. Looks like a great site you've got here!
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Old 06-09-2004, 09:26 PM   #566
Ringboy
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Had mine "reflashed" about 3 months after I got it. Couldn't hear it for a while. Now, almost a year later, pingggg!! It's during WOT in 2nd and 3rd @ 4200rpm, just like before. I have know idea why it would start doing it all of the sudden. I just moved to SC from OK. Could be the gas, but I'm using 93 just like I was in OK. Any ideas? I don't know much about engine management.
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Old 06-14-2004, 12:12 PM   #567
jsalicru
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Quote:
Originally posted by Ringboy
Had mine "reflashed" about 3 months after I got it. Couldn't hear it for a while. Now, almost a year later, pingggg!! It's during WOT in 2nd and 3rd @ 4200rpm, just like before. I have know idea why it would start doing it all of the sudden. I just moved to SC from OK. Could be the gas, but I'm using 93 just like I was in OK. Any ideas? I don't know much about engine management.
This is the reason why I am not considering reflashing... I dono why... but I suspect this happening to people...

Personally, I think Im just gonna get AccessPort and get rid of this problem and gain 20whp on the way there too...
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Old 06-14-2004, 07:18 PM   #568
10.5sec1992AWDtalon
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One issue that should be considered especially as miles are put on these cars is carbon buildup. The extra rich condition built into the fuel map will certainly cause carbon buildup and resultant detonation. Talons had this problem so bad that Mitsubishi put out a combustion chamber cleaner kit with special solvent to run through the motor on an as needed basis.

If you dog the car a lot expect it to get worse even quicker, you really need to wind out these turbo motors on a regular to keep things clean, babying em is not going to be good for them but rather detrimental IMO.
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Old 06-14-2004, 08:42 PM   #569
Ringboy
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Very interesting. I have been babying it a lot. I usually don't drive anywhere but to work. It's 30mph the entire way there (I live on an AFB). Any other ideas?

BTW what is AccessPort, just another piggy back
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Old 06-30-2004, 04:47 PM   #570
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Everyone should take a look at this thread IMO:

http://forums.nasioc.com/forums/show...hreadid=583214

Comments on old vs. reflashed ECM towards the bottom of page 1.

-st
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Old 06-30-2004, 09:24 PM   #571
needsboost2005
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Those this effect 2005 Sti?
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Old 10-15-2004, 01:45 AM   #572
WRXout
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Quote:
Originally Posted by needsboost2005
Those this effect 2005 Sti?
ya this is my question too and how exactly will i feel detonation? at idle my car shakes and i only have 800 miles, is this a factor ?
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Old 10-15-2004, 12:45 PM   #573
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FWIW, my '05 STi completely stock was pinging on occasion on CA 91 octane. It was particularly bad after a reset. It would ping all over the place while trying to learn. It concerned me enough that when I had my car tuned, the tuner and I paid particular attention to minor detonation events and tuned them out. May have lost a few HP, but the car never pings and makes consistent HP.

One thing that surprises me is how many '04 STi owners I've met that refuse to take in their cars for the reflash fearing power reduction. This while their cars are pinging like CRAZY on pump gas. If it were me, I'd take the reflash and just put in a 94 mix to assure safe power. But that's just me.
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