Z4 ECU on a 92 GT

Headlights to tailights and everything in between.

Moderators: Helpinators, Moderators

Post Reply
JimBos Legacy
First Gear
Posts: 94
Joined: Fri Nov 17, 2017 2:16 am

Z4 ECU on a 92 GT

Post by JimBos Legacy »

Anybody running the Z4 on the 92 GT? Also I was wonder what the stock ecu on the GTs were, from the research I’ve dont it’s the H7 but I could be wrong. Thanks guys


Sent from my iPhone using Tapatalk
JimBo

1992 JDM Subaru Legacy GT wagon
mike-tracy
Moderator
Moderator
Posts: 4986
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: Z4 ECU on a 92 GT

Post by mike-tracy »

You might want to ask on dirtyolbc or the liberty rs forums for any specific Q's.

I have ran the z4 ecu on a full ej20g before I got my robtune, ran great with the USDM boost control solenoid and sensors. I was running the td05 & gray 440cc injectors that the ecu is looking for.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote: Mon Jan 14, 2002 10:23 am Wait....I'm confused now.
JimBos Legacy
First Gear
Posts: 94
Joined: Fri Nov 17, 2017 2:16 am

Re: Z4 ECU on a 92 GT

Post by JimBos Legacy »

mike-tracy wrote:You might want to ask on dirtyolbc or the liberty rs forums for any specific Q's.

I have ran the z4 ecu on a full ej20g before I got my robtune, ran great with the USDM boost control solenoid and sensors. I was running the td05 & gray 440cc injectors that the ecu is looking for.
Mines an AWIC ej20g so I wasn’t sure if the ecu is okay with that, I’m also running the TD05 but I believe I still have the stock 380cc injectors


Sent from my iPhone using Tapatalk
JimBo

1992 JDM Subaru Legacy GT wagon
mike-tracy
Moderator
Moderator
Posts: 4986
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: Z4 ECU on a 92 GT

Post by mike-tracy »

The difference is the legacy ej20g ecu controls the speed of the pump. I read on the bbs that without the ecu control, the pump still runs, but at full speed.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote: Mon Jan 14, 2002 10:23 am Wait....I'm confused now.
ride_child
Third Gear
Posts: 892
Joined: Thu May 03, 2012 6:24 am
Location: Enumclaw, WA
Contact:

Re: Z4 ECU on a 92 GT

Post by ride_child »

i ran a z4 on a 91 ss... i had a td05 and 440 injectors. what do you need to know?
Kris

'91 Mica White SS - R.I.P.
'88 White RX Turbo sedan - SOLD
'91 Black SS - SOLD
'93 Silver Turbo Wagon - Hibernation/Project Mode
'91 Black Camry Alltrac - R.I.P.
'09 DGM Forester XT Limited - Daily
JimBos Legacy
First Gear
Posts: 94
Joined: Fri Nov 17, 2017 2:16 am

Re: Z4 ECU on a 92 GT

Post by JimBos Legacy »

ride_child wrote:i ran a z4 on a 91 ss... i had a td05 and 440 injectors. what do you need to know?
Like Mike was saying about the AWIC pump, does the ECU still work with the AWIC? Also I believe my injectors are the 380cc grey tops, but if someone could confirm that for me that’d be nice


Sent from my iPhone using Tapatalk
JimBo

1992 JDM Subaru Legacy GT wagon
mike-tracy
Moderator
Moderator
Posts: 4986
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: Z4 ECU on a 92 GT

Post by mike-tracy »

They measure all the injectors at a lower PSI over there. So their 380cc graytops come out to 440cc injectors using our testing.

Same thing with the ej20k yellow tops, those measure out to 440cc there, and 480cc here.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote: Mon Jan 14, 2002 10:23 am Wait....I'm confused now.
JimBos Legacy
First Gear
Posts: 94
Joined: Fri Nov 17, 2017 2:16 am

Re: Z4 ECU on a 92 GT

Post by JimBos Legacy »

mike-tracy wrote:They measure all the injectors at a lower PSI over there. So their 380cc graytops come out to 440cc injectors using our testing.

Same thing with the ej20k yellow tops, those measure out to 440cc there, and 480cc here.

Interesting, thanks for that info


Sent from my iPhone using Tapatalk
JimBo

1992 JDM Subaru Legacy GT wagon
ride_child
Third Gear
Posts: 892
Joined: Thu May 03, 2012 6:24 am
Location: Enumclaw, WA
Contact:

Re: Z4 ECU on a 92 GT

Post by ride_child »

sorry, im not able to offer any info on the awic operation, i had a fxt tmic on the car when i ran the z4.
Kris

'91 Mica White SS - R.I.P.
'88 White RX Turbo sedan - SOLD
'91 Black SS - SOLD
'93 Silver Turbo Wagon - Hibernation/Project Mode
'91 Black Camry Alltrac - R.I.P.
'09 DGM Forester XT Limited - Daily
Post Reply