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Old 28 November 2009, 09:53 PM
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rifleman
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Default z4 upgrade???

i keep seeing on ebay z4 ecus that are meant to be an upgrade for classic scoobies.
is this true???
if so would it be ok to run with full turbo back hks system,headers and up-pipe and induction kit?
Old 28 November 2009, 10:48 PM
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Glowplug
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yeah they are a easy mod, depends what you are running now

Boost Targets & Fuel-Cut Limits

WRX/STi Saloon ECU's 2C, U8, W6, W9 - As above, 11.47psi held to redline. Fuel-cut 14.57psi

WRX (1995/96) ECU Z4 - 12.71psi, dropping to 11.78psi @ 6600rpm. Fuel-cut 15.65psi.

UK/Aus/Euro ECU's V7, 7D and 6D - 11.47psi, dropping to 9.47psi at 6600rpm. With Fuel-cut @ 14.87psi

UK Prodive ECU - 13.33psi (peaks to 13.64 @ 5600rpm, drops to 12.71psi @ 6600rpm). Fuel-Cut 15.65psi.

STi RA (1996) ECU 7K - 13.17psi (peaks to 13.64psi @ 5800rpm). Fuel-Cut 15.96psi.

WRX Wagon ECU V9 - 10.55psi dropping to 6.84psi (starts to drop @ 5000rpm). Fuel-Cut 13.79psi

But then this from Scott.T blows a hole in things:

Originally Posted by Scott.T
Just compared the 6K (after finally getting hold of a base map, thanks Andy). And can confirm it is the same as a UK PPP map.

I thought the Z4 base was v.close to the PPP, but the 6K from the STi 2 is nigh on an exact match.

that'll shock a few people, knowing that a UK is running an STi 2 map LOL !!!!!!!

Bit strange though how Prodrive rated the PPP at 250BHP and the STi 2 is supposed to be 275BHP. Must be down to mechanics rather then electrickary 1's and 0's.......

Last edited by Glowplug; 28 November 2009 at 10:53 PM.
Old 29 November 2009, 12:32 AM
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myblackwrx
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i have a 6k ecu that i fitted to my 93wrx it ran alright BUT i used to get the MAP come up as an error yet i know some people have fitted them and they were fine.
You're more than welcome to have it if you like (for nothing) as i can't use it as i've changed my impreza for a later model

https://www.scoobynet.com/general-te...rx-import.html

Last edited by myblackwrx; 29 November 2009 at 12:35 AM.
Old 29 November 2009, 05:50 PM
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rifleman
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need to find out what ecu im running now.where is the ecu in the car???
mine is a 97 uk turbo.
will be running a walbro fuel pump as well as mods already mentioned.not after huge bhp just a few more would be nice and cant afford to go down the simtek,apexi fc route het.
any ideas????
Old 29 November 2009, 05:56 PM
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Glowplug
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Yeah should be fine mate

ECU is located in the passenger footwell, lift the carpet and remove the kick plate, voila
Old 30 November 2009, 10:46 AM
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rifleman
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my ecu has 8s on it and the specs above show lower boost than what mine is running(14psi)
bit confused?????
Old 30 November 2009, 12:11 PM
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ariser
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Isnt yours a 3 plug ecu ? The Z4 ecu is a 4 plug
Old 30 November 2009, 12:54 PM
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rifleman
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yep its a 3 plug one.the sooner they work out how to re-map the 97-98 classics the better.
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