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Old 10-31-2007, 06:00 PM   #101
iNfEk
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what EM do you guys use? I'm scared to have any tuner tune my ecu with the change the tune will **** up the smoothness

according to PDX an AccessPort is compatible with the JDM ECU but on Cobbs website it states otherwise. Am I right to assume that the hardware is compatible rather than the maps that accompany it?

What are my options?

Jon
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Old 10-31-2007, 10:38 PM   #102
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You don't have any options aside from openecu or ecutek. Cobb doesn't release their JDM AccessPorts in the states- you'd have to buy one from Japan.

Just find someone to tune it who knows what they are doing. You might be able to do a mail order flash too.
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Old 10-31-2007, 11:08 PM   #103
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TXS utec rev 6b will work on the JDM ecu. im currently running it on top of a ecutek flash. The avcs isnt touched by the utec and passed through.
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Old 11-01-2007, 09:22 AM   #104
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Originally Posted by fastnoypi View Post
TXS utec rev 6b will work on the JDM ecu. im currently running it on top of a ecutek flash. The avcs isnt touched by the utec and passed through.
Do you get a CEL? I have a JDM UTEC and I know it is supposed to not throw a CEL and maybe do one or two other things the USDM UTEC doesn't do.
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Old 11-01-2007, 09:29 AM   #105
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Quote:
Originally Posted by crazymikie View Post
You don't have any options aside from openecu or ecutek. Cobb doesn't release their JDM AccessPorts in the states- you'd have to buy one from Japan.

Just find someone to tune it who knows what they are doing. You might be able to do a mail order flash too.

I didn't know they had those... where can I read up?
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Old 11-01-2007, 11:29 AM   #106
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Alright guys here is the deal, right from sema.
If we want the accessport from Cobb we need to email email email and hurass hurass hurass them. They are working with prova in releaseing one for the JDM land but they are slacking because of other projects but as long as we keep on their collective asses about it, it will come out. Trust me, every day at the show I am hurassing them about it
They told me, officially its not comming out but unofficailly it will be out it just need some fire under their asses about it.
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Old 11-01-2007, 11:42 AM   #107
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Do you get a CEL? I have a JDM UTEC and I know it is supposed to not throw a CEL and maybe do one or two other things the USDM UTEC doesn't do.
I didn't have a CEL related to the Utec. The CEL i get has always been there probably due to no cats, even before i threw the utec on. It behaves more or less identical to an early board revision i had with the stock motor.

From reading on the board, and a phone call to TXS long ago i found only rev 6b to be the only version that would work.
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Old 11-01-2007, 07:44 PM   #108
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Here's their contact information from their website
yea, i emailed those 3 addresses and got a address not found error from yahoo so thats why i asked. i did go to their thread in the for sale forum and sent them a pm, guess i should call them as previously suggested.

since im looking at all this now, what turbo's are you 207 guys running? and how is it DD with a turbo that might not kick in till 4000-4500 RPM's?
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Old 11-02-2007, 12:22 AM   #109
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as far as I know and I'm sure I'll be corrected on this but the V8's were the first year that they introduced the twinscroll setup being the VF37 is for the standard STI and the VF36 is for the Spec-C (titanium shaft and more goodies) from what I further understand these turbos spool at least 500RPM faster than a 34 would. They do NOT make as much top end HP but the TQ is amazing.

STI V7 came with both small port and big ports depending on the heads that came with them. V8's all have big ports.

I believe they are the same internally other than the things mentioned above.

I would love to eventually get a twinscroll setup but that's after I play a little

Jon
To add to this, the V7 pistons are forged, and the V8 are hypereutectic. Hypereutectic pistons are stronger, but more brittle.
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Old 11-02-2007, 01:08 AM   #110
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Quote:
Originally Posted by eastcoastbumps View Post
To add to this, the V7 pistons are forged, and the V8 are hypereutectic. Hypereutectic pistons are stronger, but more brittle.
hypereutectic's are lighter but more brittle..thats why all the built usdm sti blocks go with forged pistons.
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Old 11-02-2007, 05:44 AM   #111
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so why is it that Jarred from PDX showed me the ProTuner software that supports the JDM ECU when he came down here to tune?

He has tuned other cars with JDM ECU and Engine. I mean technically is the AVCS on a 2.0L engine.

Hardware wise is the same since both USDM and JDM ECU for late 2001 to late 2002 JDM year have the same type of ECU with both automatic and manual mapping on them. The only thing different is the firmware. This is why Enginuity can work with the JDM ECUs.

PDX seems to be the only qualified candidate that will come down here and tune my engine for a decent not overly inflated price. I mean we've even got AMS coming down for a tuning session but they want a **** load more money.

I might look up Dom from GetaDomTune and see what he says (he used to live in HI)

Jon

PDX also tunes ECUTEK as well. Where might I find a JDM UTEC?
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Old 11-02-2007, 07:38 AM   #112
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Does the EJ207 have the same house housing as the EJ205? I ask because Im thinking of getting a 20G TD-06 for my EJ205 and run it until the engine finally dies then ill just get a EJ207 and swap out the VF30 for the 20G
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Old 11-02-2007, 09:27 AM   #113
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Protuner supports the ECU but you need an accessport that will may itself to the ecu first. You will not be able to find a v7 jdm accessport. The way to flash the ecus is similar but you'd need an accessport which has a v7 'mapping' if you will. You can't load STi maps on a WRX accessport, just like you can't load JDM maps on a USDM accessport. So yes, Protuner will do it, but you'd need the appropriate accessport first.



Quote:
Originally Posted by iNfEk View Post
so why is it that Jarred from PDX showed me the ProTuner software that supports the JDM ECU when he came down here to tune?

He has tuned other cars with JDM ECU and Engine. I mean technically is the AVCS on a 2.0L engine.

Hardware wise is the same since both USDM and JDM ECU for late 2001 to late 2002 JDM year have the same type of ECU with both automatic and manual mapping on them. The only thing different is the firmware. This is why Enginuity can work with the JDM ECUs.

PDX seems to be the only qualified candidate that will come down here and tune my engine for a decent not overly inflated price. I mean we've even got AMS coming down for a tuning session but they want a **** load more money.

I might look up Dom from google and see what he says (he used to live in HI)

Jon

PDX also tunes ECUTEK as well. Where might I find a JDM UTEC?
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Old 11-02-2007, 09:33 AM   #114
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Does the EJ207 have the same house housing as the EJ205?
they will bolt up together, no problem. Subaru = LEGOs
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Old 11-02-2007, 03:01 PM   #115
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I guess technically any accessport that doesn't have maps for a USDM car will work then as long as someone will be able to protune maps for it then? I need confirmation before I spend money

Jon
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Old 11-02-2007, 03:11 PM   #116
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I guess technically any accessport that doesn't have maps for a USDM car will work then as long as someone will be able to protune maps for it then? I need confirmation before I spend money

Jon
The AP will look for a ECU revision more than likely. The JDM/EDM ECU won't equal any of those ECU revisions so I seriously doubt that the AP will marry itself to the ECU regardless of what Protuner map it is.

Just find a reputable Enginuity/OpenECU tuner & be happy you saved $600 on a key fob.
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Old 11-05-2007, 09:19 AM   #117
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I have a few ?s on the EJ207. Can I run 93 octane in this engine?, Will the 207 have the same uppipe as the 205?, and if I buy say a 20G for my 205 will it bolt up fine to the 207?
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Old 11-05-2007, 09:29 AM   #118
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I have a few ?s on the EJ207. Can I run 93 octane in this engine?, Will the 207 have the same uppipe as the 205?, and if I buy say a 20G for my 205 will it bolt up fine to the 207?
i wouldn't- the motor comes from the factory with a tune for better gas so 93 is probably not adequate without a retune.

same uppipe

yes. that's the same turbo i am running.
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Old 11-05-2007, 09:36 AM   #119
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well about the fuel issue. 93 is the highest octane they offer where I live so if I get a retune on the 207 can i run it?
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Old 11-05-2007, 10:39 AM   #120
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what kind of fuel are you supposed to run on an ej207? i didnt think there was anything better than 93 octane that's openly available for public use
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Old 11-05-2007, 10:45 AM   #121
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what kind of fuel are you supposed to run on an ej207? i didnt think there was anything better than 93 octane that's openly available for public use
Thats what I thought to
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Old 11-05-2007, 10:46 AM   #122
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you need to get a tune to run 93. that's it. then the motor will be fine. you could take your chances and run the stock tune, but i wouldn't do it.....
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Old 11-05-2007, 10:55 AM   #123
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ok thats cool. Im asking because Im going to get the 207 prolly in 2 years.
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Old 11-05-2007, 11:10 AM   #124
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well if i had to guess, the ej207 and all japanese wrx/sti/etc's are all spec'ed to run 101oct in japan. 101 is the std "performance car" gas grade over there. kinda like 91 is tops recommended over here.

(i know what i'm about to say is not new, but occasionally people need to be reminded...)

But! 101 over there isn't 101 over here. 101 RON (japanese method) is equivilant to our 94-95oct ((MON+RON)/2, US method). running good 93oct in your car isn't far off from the right gas. It's not like you're running total swill by downgrading 1-2 points. Worth re-tuning your car to run 93 with an ecu expecting 94...?

In fact at higher altitudes in the US stations stock 85 as regular instead of 87, since its been proven to work fine. I have ran 91oct chevron in all of my japanese motors(or ecu setups), and never had a problem at all. Just for reference to the thread, that includes my current v5 ej207. Plus, if you're not running on the ragged edge of a hard tune or something (just stock ecu for instance), then your ecu will react just fine if it detects knock (we have knock sensors), and make sure the motor runs ok.

Bottom line. Your motor will run fine on US gas. Now, tuning for more power? Thats always a different a story... Thats when things break, when you push them past stock reliability/power levels. Nothing new there.

Last edited by neko; 11-05-2007 at 11:18 AM.
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Old 11-05-2007, 12:09 PM   #125
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I'd suppose you might be able to run an AP on an EJ207 if you ran a USDM ECU. In order to pass emissions I just had my ver8 207 Ecuflash map reformatted and reflashed onto my old 02 WRX Ecutek ECU. Motor seems fine, definately down on power without the AVCS and running rich for sure without the timing advance but it is an option for those of you who might already have EM.

I've lost a lot of throttle response but I'll be swapping in this ECU once a year to pass emissions and then go back to the normal JDM ECU.
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