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Old 04-10-2007, 11:06 PM   #1
GripGC8
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Default Z4 stock ecu specs

does anyone know the specs for the factory Z4 ecu?

Rev limit
Boost limit
Fuel cut
etc..
etc..

any info would be great.
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Old 04-10-2007, 11:25 PM   #2
rob
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Rev limit -- 7100 RPM
Max boost -- 0.87 bar (12.6psi)
Fuel cut -- 1.08 bar (15.7psi)
Speed Limit -- 113 MPH

-Rob
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Old 04-10-2007, 11:29 PM   #3
hail2theTheif
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I'd really like to know where my ecu came from. obviously my clip but i've never heard anyone have the same specs as mine. out of a V2 STi 555 Edition

Rev Limit - 7250
Max Boost - 1 bar
Fuel Cut - never taken it there
Speed Limit - not sure either but the concenus on JDM limiter is 113 i think.
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Old 04-10-2007, 11:36 PM   #4
rob
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What's the 2 digit code on the ECU?
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Old 04-10-2007, 11:38 PM   #5
GripGC8
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thanks again rob
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Old 04-10-2007, 11:41 PM   #6
hail2theTheif
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good question...i'll see if i can find the pics of the clip before i bought it...if not i'll take a look see tomorrow
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Old 04-10-2007, 11:58 PM   #7
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Quote:
Originally Posted by hail2theTheif View Post
good question...i'll see if i can find the pics of the clip before i bought it...if not i'll take a look see tomorrow
cool. My guess is that it's the same as the ver2 STi ECU which was 6k. If so, I have the details for that ECU as well.

-Rob
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Old 04-15-2007, 02:02 AM   #8
supasweetr34skyline
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<--rocking the 6k ecu, so more info would be greatly appreciated
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Old 04-18-2007, 04:52 PM   #9
rob
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The only difference I see is in the boost targets. They are a tick higher for the 6k. Even the fuel and ignition maps look the same with the Z4.

Rev limit -- 7100 RPM
Max target boost -- 0.94 bar (13.6psi)
Fuel cut -- 1.08 bar (15.7psi)
Speed Limit -- 113 MPH

-Rob
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Old 04-18-2007, 04:52 PM   #10
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Quote:
Originally Posted by hail2theTheif View Post
good question...i'll see if i can find the pics of the clip before i bought it...if not i'll take a look see tomorrow
Did you ever figure how to take the cover plate off?
-Rob
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Old 04-19-2007, 12:22 AM   #11
kingsubi
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Quote:
Originally Posted by hail2theTheif View Post

Rev Limit - 7250
Max Boost - 1 bar
Fuel Cut - never taken it there
Speed Limit - not sure either but the concenus on JDM limiter is 113 i think.
Sounds like the scoobyecu chip. Raises boost to 1.1 bar. On my 555 ecu it can get 1 bar but only b/c of the bigger turbo and free flowing exhaust.
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Old 04-19-2007, 01:47 AM   #12
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Quote:
Originally Posted by kingsubi View Post
Sounds like the scoobyecu chip. Raises boost to 1.1 bar. On my 555 ecu it can get 1 bar but only b/c of the bigger turbo and free flowing exhaust.
What's the the 2digit code on your 555 ECU?
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Old 04-19-2007, 01:54 AM   #13
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wierd i posted the other day responding but it didn't show up. how do you get the cover plate off? haha. i can see 3 screws but i have a feeling there are more than that. anyone?
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Old 04-19-2007, 02:16 AM   #14
kingsubi
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Forget if its the 6K or Z4...but found this jem while googling:

http://www.jprova.co.jp/product/engine/ecu.html
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Old 04-19-2007, 12:14 PM   #15
Matt Monson
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Quote:
Originally Posted by rob View Post
The only difference I see is in the boost targets. They are a tick higher for the 6k. Even the fuel and ignition maps look the same with the Z4.

Rev limit -- 7100 RPM
Max target boost -- 0.94 bar (13.6psi)
Fuel cut -- 1.08 bar (15.7psi)
Speed Limit -- 113 MPH

-Rob
Are you sure about that rev limit? On Kbahus's 6K ECU I know he took it to 7500 a few times without hitting the limiter. Moose told him it was 7800-8000 when he sold it to him...
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Old 04-19-2007, 12:40 PM   #16
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Quote:
Originally Posted by kingsubi View Post
Forget if its the 6K or Z4...but found this jem while googling:

http://www.jprova.co.jp/product/engine/ecu.html
ooh nice too bad it doesn't do the older stuff
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Old 04-19-2007, 04:38 PM   #17
rob
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Quote:
Originally Posted by Matt Monson View Post
Are you sure about that rev limit? On Kbahus's 6K ECU I know he took it to 7500 a few times without hitting the limiter. Moose told him it was 7800-8000 when he sold it to him...
Not 100% sure. I only have a portion of the ECU dump for the 6k. It's possible that it's mixed up with some other code (although I would be suprised). I have the full code of the 7k (STi-RA ver 2) and the rev limit shows 7700. Perhaps Kbahus's ecu is chipped?

-Rob
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Old 04-19-2007, 06:12 PM   #18
Matt Monson
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If it is chipped that would explain a lot. I never pulled the cover on it to see if it was chipped and I don't have it anymore. And before you say anything, I know you wanted it, but a local offered me silly money for it along with a stripped Ej20G harness ready for swapping. I just couldn't pass it up...
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Old 04-19-2007, 06:16 PM   #19
kingsubi
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Quote:
Originally Posted by rob View Post
Not 100% sure. I only have a portion of the ECU dump for the 6k. It's possible that it's mixed up with some other code (although I would be suprised). I have the full code of the 7k (STi-RA ver 2) and the rev limit shows 7700. Perhaps Kbahus's ecu is chipped?

-Rob
7700 sounds like mine.

And I just picked up a scoobyecu for ~$100 to safely get up to 1.1bar and use regular pump gas. Although at $4.99/gal for 100, its not looking that much more based on the prices for 91 out here.
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Old 04-20-2007, 02:42 AM   #20
Marnix
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AFAIK the STI ECUs rev higher than the stock WRX; the EUDM EJ20K ECU (MY97) allows 7200 rpm, 0.87 bar (fuel cut 1.08 bar) without speed limit - typically with long WRX gearing these do 6k in fifth at about 240-250 kph on the speedo.
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Old 04-20-2007, 03:26 AM   #21
hail2theTheif
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where did you find the scoobyecu kingsubi? rare find or relativly easy to find? I would like to upgrade mine to get some more power outta my car but the PFC are gettin harder and harder to find for our cars and I have no idea how to tune it.
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Old 04-20-2007, 01:39 PM   #22
kingsubi
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check out this seller on ebay: rick9761

http://cgi.ebay.com/ws/eBayISAPI.dll...m=290106380853

some go for more, some less. Seems like he is making them by coping the scoobyecu map onto new chips. Either way I should get it in a week or so and update the differences.
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Old 04-23-2007, 11:29 PM   #23
kingsubi
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edit: mine is a 6K sti ver2 555 edition
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Old 04-24-2007, 12:50 AM   #24
civic2scooby
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specs for the W6 ecu?
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Old 04-24-2007, 01:24 AM   #25
hail2theTheif
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would love to hear the results when you get it. i hope he will have more for sale if it works out. at the moment he has none listed.
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